HELICOPTERS NSN 1520-01-035-0266, NSN 1520-01-082-0686, NSN 1520-01-298-4532. REPAIR STANDARDS (2004)

DMWR 1-1520-237

E-7. UPPER PLATING MODIFICATION KIT (50-16).

Subject: Upper Plating and Doubler Installation, Rework of, dated 31 March 2003

Purpose: Provide instructions for installing new cabin upper plating and doubler.

Model:

UH-60A

Description: The following is a brief overview of the work required to rework upper transition stations 320.00 through

380.00. New doublers and upper deck plating is installed.

Drawings required for modification:

70070-20570, 70213-02101

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

(b) TM-1-1520-265-23, Technical Manual, Aviation Unit Maintenance (AVUM) and Aviation Intermedi-

ate (AVIM) Manual, Nondestructive Test Procedure for H-60 Helicopter Series

Instructions:

NOTE

• AcompletereviewofthisSSIisrecommendedbeforeinstallingtheupperplatinganddoublerinstallation.

• Before beginning this modification procedure, use the material information list to inventory the kit. Make

sure all parts are present and in serviceable condition.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up, and safety practices may not be called out herein. However, these steps and all other required

routine tasks shall be done.

• Where drawing numbers are not listed within individual steps, drawing(s) listed in preceding step(s) are

the controlling authority.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

• Personnel must be trained and certified in hole quality assurance and proper cold expansion procedures

per SS5098.

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions, and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

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DMWR 1-1520-237

Rework of plating installation (70213-02101-011, -013, or -014), stringer installation (70212-02119-011,

-012, -013, or -014), frame assembly (70211-02109-041 or -042), nutplate installation (70213-02101-012), stringer

installation (70202-02120-011 or -012), and angle installation (70304-02201-011 or -012) as follows:

(1)

Removals between stations 320.00 and 380.00, left and right buttlines 34.50 as follows (Dwg 70070-

20570):

(a)

Remove and save for reuse fairing (70213-02101-127 or -163) and doubler (70213-02101-129) station

335.00, left buttline 22.25 (Sheet 5, View D, Zone 5-E).

(b)

Remove and save for reuse fairing (70213-02101-128 or -162) and doubler (70213-02101-129) station

335.00, right buttline 22.25 (Sheet 5, View P, Zones 7-B and 7-D).

(c)

Remove five nutplates (MS21075-3) and four nutplates (MS21069-3) left and right sides (Sheet 4, Zones

12-G, 13-G, and 16-E; Sheet 6, Zones 12-B, 16-D, and 16-E).

(d)

Remove two doubler washers (SS430X15B000431) between left buttline 18.00 and 22.00 (Sheet 4,

Zones 14-G and 16-F).

(e)

Remove angle (70304-02201-109) and angle (70304-02201-103 or -112) left side firewall (Sheet 4,

Zones 10-D and 11-G).

(f)

Remove gusset (70213-02101-106) left side (Sheet 4, Zone 16-D).

(g)

Remove and save for reuse angle (70211-02109-117) station 343.61, left side (Sheet 7, Zone 11-B).

(h)

Remove clips (70211-02110-111, -112, and 70211-02109-121) station 343.61, left side (Sheet 7, Sec-

tion T-T, Zones 13-D, 14-E, and 16-E).

(i)

Remove angles (70211-02109-109, -115, and 70213-02101-121) left side (Sheet 5, Zone 5-G; Sheet 7,

Zones 8-G and 9-C).

(j)

Remove and save for reuse angle (70211-02109-118) station 343.61, right side (Sheet 7, Zone 7-B).

(k)

Remove angles (70211-02109-110, -116, and 70213-02101-122) right side (Sheet 5, Zone 5-G; Sheet

7, Zones 8-G and 9-C).

(l)

Remove clips (70211-02110-111, -112, and 70211-02109-121) right side (Sheet 7, Section T-T, Zones

13-D, 14-E, and 16-E).

(m)

Remove gusset (70213-02101-106) right side (opposite) (Sheet 4, Zone 16-D).

(n)

Remove angle (70304-02201-107 or -113) and angle (70304-02201-106) right side firewall (Sheet 6,

Zones 10-D and 11-B).

(o)

Remove gusset (70213-02101-126) station 365.00, right buttline 5.00 (Sheet 5, Zone 10-G).

(p)

Remove remaining fasteners shown on sheets 4, 5, 6, and 7.

(2)

Installations between stations 320.00 and 380.00, left and right buttlines 34.50 as follows (Dwg 70070-

20570):

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DMWR 1-1520-237

(a)

Temporarily install doubler (70070-20570-141), gusset (70070-20570-105), and filler (70070-20570-

139) between stations 328.00 and 355.00, left buttlines 16.50 and 30.00 (Sheet 4, Zones 9-A, 13-C, and 16-D).

(b)

Make cutout in doubler (70070-20570-141) and gusset (70070-20570-105) using hole in skin as a

template (Sheet 5, View D, Zone 3-C).

(c)

Temporarily reinstall saved fairing (70213-02101-127 or -163) and doubler (70213-01201-129) (Sheet

5, View D, Zone 4-E; Sheet 4, Zones 13-D, 13-E, 14-D, and 14-E).

(d)

Temporarily install angle (70070-20570-125 or -127) and angle (70070-20570-107) to left side firewall

(Sheet 2, Notes 10 and 11; Sheet 4, Zones 10-D and 11-G; Sheet 6, Sections W-W, AB-AB, and Y-Y, Zones 3-D, 3-G,

and 6-C).

(e)

Temporarily install zee (70070-20570-111) with two clips (70070-20570-110) to left side cabin

overhead (Sheet 4, Zones 11-C and 11-G; Sheet 5, Sections F-F, G-G, and H-H, Zones 4-G, 6-F, and 7-F).

(f)

Make cutout in angle (70070-20570-125 or -127) using existing hole in firewall as a template (Sheet 6,

Sections AB-AB and Y-Y; Sheet 2, Notes 10 and 11; Sheet 3, Note 24).

(g)

Temporarily install two doubler washers (SS430X15B000431) between stations 330.00 and 340.00, left

buttlines 16.50 and 22.50 (Sheet 4, Zones 14-G and 16-F).

(h)

Drill two number 8 (0.199-inch diameter) holes, one number 11 (0.191-inch diameter) hole, and three

number 1 (0.228-inch diameter) holes (Sheet 4, Zones 12-G, 13-G, 14-F, and 16-E).

(i)

Temporarily install three nutplates (MS21075-3) and two nutplates (MS21069-3) between stations 330.00

and 345.00, left buttlines 16.5 and 22.50 (Sheet 4, Zones 12-G and 16-E).

(j)

Temporarily install clip (70070-20570-117) in cabin overhead station 343.61, left buttline 28.75 (Sheet 7,

Sections E-E and R-R, Zones 13-D and 15-B).

(k)

Temporarily install angles (70070-20570-135 and -137) and two clips (70070-20570-123) in cabin

overhead station 343.61, between left buttlines 16.00 and 23.00 (Sheet 7, Sections E-E, T-T, U-U, and V-V, Zones 8-G,

9-C, 14-E, and 16-E).

(l)

Temporarily reinstall angle (70211-02109-117) in cabin overhead station 343.61, left buttline 23.50

(Sheet 7, Section E-E, Zone 11-B).

(m)

Temporarily install clip (70070-20570-118) in cabin overhead station 343.61, right buttline 28.75

(Sheet 7, Sections E-E, N-N, and R-R, Zones 5-C, 13-C, and 15-B).

(n)

Temporarily install angles (70070-20570-136 and -138) and two clips (70070-20570-123) in cabin

overhead station 343.61, between right buttlines 16.00 and 23.00 (Sheet 7, Sections N-N, T-T, U-U, and V-V, Zones

8-G, 9-C, 14-E, and 16-E).

(o)

Temporarily reinstall angle (70211-02109-118) in cabin overhead station 343.61, right buttline 23.50

(Sheet 7, Section N-N, Zone 7-B).

(p)

Temporarily install doubler (70070-20570-142), gusset (70070-20570-106), and filler (70070-20570-

140) between stations 328.00 and 355.00, right buttlines 16.50 and 30.00 (right side opposite) (Sheet 4, Zones 9-A,

13-B, and 16-D; Sheet 6, Zones 10-F, 11-F, and 16-D).

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DMWR 1-1520-237

(q)

Make cutout in doubler (70070-20570-142) and gusset (70070-20570-106) on right side using hole in

skin as template (Sheet 5, View P, Zone 6-D).

(r)

Temporarily reinstall saved fairing (70213-02101-128 or -162) and doubler (70213-02101-129) (Sheet

5, View P, Zones 7-B and 8-D; Sheet 6, Zones 13-D, 13-E, 14-D, and 14-E).

(s)

Temporarily install angle (70070-20570-126 or -128) and angle (70070-20570-108) to right firewall

(Sheet 2, Notes 10 and 11; Sheet 6, Sections AA-AA, AB-AB, and Y-Y, Zones 6-E, 10-E, and 11-B).

(t)

Temporarily install zee (70070-20570-112) with two clips (70070-20570-110) to right side cabin

overhead (Sheet 5, Sections F-F, G-G, and H-H, Zones 4-G, 6-F, and 7-F).

(u)

Make cutout in angle (70070-20570-126 or -128) using existing hole in firewall as a template (Sheet 6,

Sections AB-AB and Y-Y; Sheet 2, Notes 10 and 11; Sheet 3, Note 24).

(v)

Drill two number 8 (0.199-inch diameter) holes, one number 11 (0.191-inch diameter) hole, and two

number 1 (0.288-inch diameter) holes (Sheet 6, Zones 12-B, 14-B, 16-D, and 16-E).

(w)

Temporarily install two nutplates (MS21075-3) and two nutplates (MS21069-3) between stations 325.00

and 345.00, right buttlines 16.50 and 22.25 (Sheet 6, Zones 12-B, 16-D, and 16-E).

(x)

Temporarily install angle (70070-20570-143) with clips (70070-20570-115 and -116) and radius block

(SS1058-1-18-14) between buttline 0.00 and left buttline 5.33 (Sheet 5, View B, Sections J-J, L-L, M-M, and K-K, Zones

15-F, 15-G, and 16-G).

(y)

Temporarily install angle (70070-20570-144) with clips (70070-20570-115 and -116) and radius block

(SS1058-1-18-14) between buttline 0.00 and right buttline 5.33 (Sheet 5, View B, Sections J-J, L-L, M-M, and K-K, Zones

15-F, 15-G, and 16-G).

(z)

Temporarily install gusset (70070-20570-109) between stations 362.00 and 370.00, left and right butt-

line 5.33 (Sheet 5, View B, Zone 10-G).

(aa)

Perform penetrant or Eddy current inspection to holes and surrounding area prior to cold expansion

(Sheet 4, Note 45).

(ab)

Cold work holes where existing fasteners were removed and hi lok pins (HL20PB) are installed (Sheet 2,

Note 18; Sheet 3, Note 27; Sheet 4, Zones 9-F, 9-G, and 15-F; Sheet 6, Zones 9-B, 10-B, 9-C, 10-C, 15-C, and 16-C).

(ac)

Inspect each hole and a 0.20-inch minimum surrounding area for cracks (Sheet 3, Note 27).

(ad)

Cold work holes where existing fasteners were removed and hi lok pins (HL64PB) are installed (Sheet 2,

Note 18; Sheet 3, Note 28; Sheet 4, Zones 9-F, 9-G, 10-F, 11-F, 11-E, 12-E, 13-E, 13-F, 14-F, and 15-F; Sheet 6, Zones

9-A, 10-C, 11-C, 12-C, 13-C, 14-C, and 15-C; Sheet 7, Zones 7-D, 10-D, and 11-G).

(ae)

Inspect each hole and a 0.20-inch minimum surrounding area for cracks (Sheet 3, Note 28).

(af)

Transfer drill any remaining fastener holes for assembly (Sheets 4, 5, 6, and 7).

(ag)

Remove parts fitted in steps B.(2) (a) through B.(2) (z), deburr and touch up as required.

E-76

DMWR 1-1520-237

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

(ah)

Apply sealant (MIL-S-8802, A2, or C20, or equivalent) to areas indicated by crosshatch (Dwg 70070-

20570, Sheet 1, Note 7; Dwg 70213-02101, Sheet 1, Note 1).

(ai)

Install parts fitted in steps B.(2)(a) through B.(2)(z) using fasteners shown (Dwg 70070-20570, Sheet 1,

Note 7, Sheet 3, Notes 27 and 28, Sheets 4, 5, 6, and 7).

(aj)

Reidentify the following parts using pen and contrasting ink (Sheet 4, Note 37):

Old Part No.

Nomenclature

New Part No.

70212-02119-111

Stringer

70070-20570-129

70212-02119-112

Stringer

70070-20570-130

70212-02119-113

Stringer

70070-20570-131

70212-02119-114

Stringer

70070-20570-132

70202-02120-101

Stringer Zee

70070-20570-133

70202-02120-102

Stringer Zee

70070-20570-134

Reinstallation of removed equipment:

(1)

Install removed equipment per reference (a).

Record of Compliance:

(1)

Make an appropriate logbook entry to show compliance with this Special Service Instruction.

Weight and Balance Data:

POUNDS

INCHES AFT

MOMENT/

QTY

PART NO.

NOMENCLATURE

WEIGHT

OF DATUM

1000

70070-20570-011

Mod. Kit

+11.4

345.0

3.933

Weight and Balance: Change resulting from these instructions are as follows:

Change in basic weight:

+11.4 pounds

Moment arm:

345.0 in.

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DMWR 1-1520-237

Change in basic moment/1000: 3.933

Manpower (Estimated):

No. of Personel

No. of Hours

Man-hours

Sheet Metal Mechanic

80.0

*160.0

*Does not include time required to prepare helicopter or return it to flight status.

Material Information:

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Mod. Kit, Upper Plating, Doubler

70070-20570-011

(1)

Instl,

consisting of:

Mod. Kit, Plate Assembly,

70070-20570-012

consisting of:

Collar

HL1087A-5

487

Collar

HL1087A-6

Pin, Hi Lok

HL20PB-5-2

Pin, Hi Lok

HL20PB-5-3

160

Pin, Hi Lok

HL20PB-6-3

Pin, Hi Lok

HL20PB-6-4

100

Pin, Hi Lok

HL20PB-6-5

Pin, Hi Lok

HL20PB-6-6

Pin, Hi Lok

HL20PB-6-7

Pin, Hi Lok

HL64PB-6-3

Pin, Hi Lok

HL64PB-6-4

Pin, Hi-Lok

HL64PB-6-5

HL64PB-6-6

Pin, Hi Lok

HL64PB-6-7

Rivet

MS20470AD4-3

Rivet

MS20470AD4-4

228

Rivet

MS20470AD5-2

155

Rivet

MS20470AD5-3

Rivet

MS20470AD5-4

Rivet, Blind

NAS1738B4-4

Rivet, Blind

NAS1738B5-3

Rivet, Blind

NAS1738B5-4

Rivet, Blind

NAS1738B5-5

E-78

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Rivet

RA615-5M2

Radius Block

SS1058-1-18-14

Washer, Doubler

SS430X15B000431

Filler

70070-20570-139

Filler

70070-20570-140

Doubler

70070-20570-141

Doubler

70070-20570-142

Gusset

70070-20570-105

Gusset

70070-20570-106

Gusset

70070-20570-109

Clip

70070-20570-110

Zee

70070-20570-111

Zee

70070-20570-112

Angle

70070-20570-143

Angle

70070-20570-144

Clip

70070-20570-115

Clip

70070-20570-116

Mod. Kit, Nutplate Instl,

70070-20570-013

consisting of:

Nutplate

MS21069-3

Nutplate

MS21075-3

Rivet

NAS1097AD3-3

Rivet

NAS1097AD3-4

Rivet

NAS1097AD3-6

Mod. Kit, Frame Instl,

70070-20570-014

consisting of:

Collar

HL1087A-6

Pin, Hi Lok

HL20PB-6-2

Pin, Hi Lok

HL20PB-6-3

Pin, Hi Lok

HL20PB-6-4

Pin, Hi Lok

HL20PB-6-5

Pin, Hi Lok

HL20PB-6-6

Pin, Hi Lok

HL20PB-6-8

Pin, Hi-Lok

HL64PB-6-5

HL64PB-6-6

Clip

70070-20570-117

Clip

70070-20570-118

Angle

70070-20570-135

Angle

70070-20570-136

Angle

70070-20570-137

Angle

70070-20570-138

Clip

70070-20570-123

E-79

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Mod. Kit, Angle Instl,

70070-20570-015

consisting of:

Collar

HL1087-6

Pin, Hi Lok

HL20PB-6-3

Pin, Hi Lok

HL20PB-6-4

Pin, Hi Lok

HL20PB-6-5

Pin, Hi Lok

HL64PB-6-4

HL64PB-6-6

Pin, Hi Lok

HL64PB-6-7

Rivet

MS20615-4M

Rivet

NAS1097AD6-7

Angle

70070-20570-107

Angle

70070-20570-108

Angle

70070-20570-125

Angle

70070-20570-126

Angle

70070-20570-127

Angle

70070-20570-128

Consumable Material:

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

Qty

Nomenclature

Part Number

Source

16 oz.

Sealant

MIL-S-8802, A2, or C20, or

(1)

equivalent

Source:

(1)

Available through normal supply channels

E-80

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-6-

70070-20570-011

UPPER PLATING MODIFICATION KIT

REF

-1

70070-20570-012

M/K,PLATE INSTL

-2

70070-20570-022

PLATING INSTL (Modified from 70213-02101-

011)

REF

70070-20570-023

PLATING INSTL (Modified from 70213-02101-

013)

REF

70070-20570-024

PLATING INSTL (Modified from 70213-02101-

014)

REF

-3

NAS1738B5-5

BLIND RIVET

-4

NAS1738B5-4

BLIND RIVET

-5

SS430X15B000431

DOUBLER WASHER

-6

MS20470AD4-4

RIVET

-7

NAS1738B4-4

BLIND RIVET

-8

HL64PB-6-5

HI-LOK PIN, (73197)

-9

HL1087A-6

COLLAR, (73197)

487

-10

HL20PB-6-4

HI-LOK PIN, (73197)

-11

HL64PB-6-6

PIN, (73197)

-12

MS20470AD5-4

RIVET

-13

HL20PB-6-5

HI-LOK PIN, (73197)

100

-14

MS20470AD5-3

RIVET

155

-15

70070-20570-105

GUSSET, LH

70070-20570-106

GUSSET, RH

-16

RA615-5M2

RIVET, (76100)

-17

HL20PB-6-3

HI-LOK PIN, (73197)

160

-18

MS20470AD5-2

RIVET

227

-19

HL20PB-6-6

HI-LOK PIN, (73197)

-20

HL64PB-6-7

HI-LOK PIN, (73197)

-21

HL20PB-6-7

HI-LOK PIN, (73197)

-22

SS430X15B000431

DOUBLER WASHER

-23

MS20470AD4-3

RIVET

-24

MS20470AD5-2

RIVET, LH

NAS1738B5-3

BLIND RIVET, RH

-25

70070-20570-139

FILLER, LH

70070-20570-140

FILLER, RH

-26

70070-20570-141

DOUBLER, LH

70070-20570-142

DOUBLER, RH

-27

70070-20570-111

ZEE, LH

70070-20570-112

ZEE, RH

-28

70070-20570-110

CLIP

-29

HL64PB-6-4

HI-LOK PIN, (73197)

-30

HL64PB-6-3

HI-LOK PIN, (73197)

-31

70070-20570-109

GUSSET

-32

70070-20570-115

CLIP

-33

HL20PB-5-2

HI-LOK PIN, (73197)

-34

HL1087A-5

COLLAR, (73197)

-35

HL20PB-5-3

HI-LOK PIN, (73197)

-36

SS1058-1-18-14

RADIUS BLOCK

-37

70070-20570-116

CLIP

-38

70070-20570-143

ANGLE, LH

70070-20570-144

ANGLE, RH

-39

70070-20570-013

M/K,NUTPLATE INSTL

-40

MS21069-3

. NUTPLATE

-41

NAS1097AD3-3

. RIVET

-42

MS21075-3

. NUTPLATE

-43

NAS1097AD3-6

. RIVET

-44

MS21075-3

. NUTPLATE

-45

NAS1097AD3-4

. RIVET

-46

MS21075-3

. NUTPLATE

-47

70070-20570-014

M/K,FRAME INSTL

-48

70070-20570-016

. STRINGER INSTL (Modified from 70212-02119-

012)

REF

E-86

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

3 4 5 6 7

DESCRIPTION

ASSY

CODE

70070-20570-017

STRINGER INSTL (Modified from 70212-02119-

013)

REF

70070-20570-018

STRINGER INSTL (Modified from 70212-02119-

014)

REF

70070-20570-019

STRINGER INSTL (Modified from 70202-02120-

011)

REF

70070-20570-020

STRINGER INSTL (Modified from 70202-02120-

012)

REF

70070-20570-021

STRINGER INSTL (Modified from 70212-02119-

011)

REF

-49

70070-20570-041

STRINGER ASSY (Modified from 70211-02109-

041)

REF

70070-20570-042

STRINGER ASSY (Modified from 70211-02109-

042)

REF

-50

70070-20570-117

CLIP, LH

70070-20570-118

CLIP, RH

-51

HL20PB-6-4

HI-LOK PIN, (73197)

-52

HL1087A-6

COLLAR, (73197)

-53

HL20PB-6-2

HI-LOK PIN, (73197)

-54

HL20PB-6-5

HI-LOK PIN, (73197)

-55

HL20PB-6-8

HI-LOK PIN, (73197)

-56

HL20PB-6-3

HI-LOK PIN, (73197)

-57

HL20PB-6-6

HI-LOK PIN, (73197)

-58

HL64PB-6-5

HI-LOK PIN, (73197)

-59

70070-20570-123

CLIP

-60

HL64PB-6-6

PIN, (73197)

-61

70070-20570-137

ANGLE, LH

70070-20570-138

ANGLE, RH

-62

70070-20570-135

ANGLE, LH

70070-20570-136

ANGLE, RH

-63

70070-20570-129

STRINGER (Reidentified from 70212-02119-

111)

REF

70070-20570-130

STRINGER (Reidentified from 70212-02119-

112)

REF

70070-20570-131

STRINGER (Reidentified from 70212-02119-

113)

REF

70070-20570-132

STRINGER (Reidentified from 70212-02119-

114)

REF

70070-20570-133

STRINGER ZEE (Reidentified from 70202-

02120-101)

REF

70070-20570-134

STRINGER ZEE (Reidentified from70202-

02120-102)

REF

-64

70070-20570-015

M/K,ANGLE INSTL

-65

70070-20570-025

. ANGLE INSTL (Modified from 70304-02201

-011)

REF

70070-20570-026

. ANGLE INSTL (Modified from 70304-02201

-012)

REF

-66

HL20PB-6-4

. HI-LOK PIN, (73197)

-67

HL1087-6

. COLLAR, (73197)

-68

HL20PB-6-5

. HI-LOK PIN, (73197)

-69

NAS1097AD6-7

. RIVET

-70

HL64PB-6-7

. HI-LOK PIN, (73197)

-71

HL64PB-6-6

. PIN,

(73197)

-72

70070-20570-107

. ANGLE, LH

70070-20570-108

. ANGLE, RH

-73

HL20PB-6-3

. HI-LOK PIN, (73197)

-74

MS20615-4M3

. RIVET

-75

70070-20570-127

. ANGLE, LH

70070-20570-128

. ANGLE, RH

-76

70070-20570-125

. ANGLE, LH

70070-20570-126

. ANGLE, RH

E-87

DMWR 1-1520-237

E-8. BL 34.5 MODIFICATION KIT (50-7).

Subject: Buttline 34.50, Modification of, dated 31 March 2003

Purpose: Provide instructions to modify buttline 34.50 to eliminate cracking and to replace existing fasteners.

Model:

UH-60A

Description: The following is a brief overview of the work required to modify buttline 34.50. New reinforcements are

installed, existing fasteners are removed, the holes are coldworked and new fasteners are installed.

Drawings required for modification:

70070-20572

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

(b) TM 1-1520-265-23, Technical Manual, Aviation Unit Maintenance (AVUM) and Aviation Intermedi-

ate (AVIM) Manual, Nondestructive Inspection Procedure for H-60 Helicopter Series

Instructions:

NOTE

• A complete review of this SSI is recommended before modifying buttline 34.50.

• Before beginning this modification procedure, use the material information list to inventory the kit. Make

sure all parts are present and in serviceable condition.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up and safety practices may not be called out herein. However, these steps and all other required

routine tasks shall be done.

• Where drawing numbers are not listed within individual steps, drawing(s) listed in preceding step(s) are

the controlling authority.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

• Personnel must be trained and certified in hole quality assurance and proper cold expansion procedures

per SS5098.

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions, and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

E-88

DMWR 1-1520-237

Modify right side buttline 34.50 as follows:

(1)

Remove and save for reinstallation angle (70212-02112-170, 70211-02108-119 or -171) (Dwg 70070-

20572, Sheet 3, Zone 5-F, Notes 16, 18, 19, and 20).

(2)

Remove and discard angle (70212-02112-132 or -162) at buttline 34.50, waterline 265.00 (Sheet 3, Zone

6-G, Notes 16 and 17).

(3)

Temporarily install new reinforcement (70080-70107-222) transfer drilling through existing fastener loca-

tions and adding new fasteners (Sheet 3, Zones 5-F through 8-F).

(4)

Remove remaining fasteners identified on drawing in preparation for cold expansion process (Sheet 3, Zones

7-E through 9-E and 7-E through 9-G).

(5)

Inspect holes prior to cold working (Dwg 70070-20572, Sheet 3, Note 22).

(6)

Cold work fastener locations at buttline 34.50 between stations 305.00 and 315.00, and waterlines 260.00

and 265.00 identified on drawing (Sheet 3, Zones 7-E through 9-E, 7-F through 9-F, Notes 12, 13, 14, 16, 17, and 23).

(7)

Inspect holes per Sheet 3, Note 22.

(8)

Remove parts installed in step B.(3) deburr and touch up as required.

(9)

Install all parts removed in step B.(8) and angle (70212-02112-170, 70211-02108-119, or -171) using

fasteners shown (Sheet 3, Zones 6-G, 5-F, 7-E through 9-E, 7-G through 9-G, Notes 9, 12, 13, and 14).

Modify left side buttline 34.50 as follows:

(1)

Remove and discard angle (70212-02112-131 or -161) at buttline 34.50, waterline 265.00 (Dwg 70070-

20572, Sheet 3, Zone 13-G, Notes 16 and 17).

(2)

Temporarily install new reinforcement (70080-70107-223) transfer drilling through existing fastener loca-

tions and adding new fasteners (Sheet 3, Zones 12-G through 15-G).

(3)

Remove remaining fasteners identified on drawing in preparation for cold expansion process (Sheet 3, Zones

11-E through 13-E and 11-F through 13-F).

(4)

Inspect holes per Sheet 3, Note 22.

(5)

Cold work fastener locations at buttline 34.50 between stations 305.00 and 315.00, and waterlines 260.00

and 265.00 identified on drawing (Sheet 2, Zones 11-E through 12-E, 11-F through 12-F, Notes 12, 13, 14, 16, 17 and

23).

(6)

Inspect holes per Sheet 3, Note 22.

(7)

Remove part installed in step C.(2) deburr and touch up as required.

(8)

Install parts removed in step C.(7) using fasteners shown (Sheet 3, Zones 11-E through 11-G, 13-G, 11-F

through 13-F, Notes 9, 12, 13, 1 and 234).

Reinstallation of removed equipment:

(1)

Install removed equipment per reference (a).

E-89

DMWR 1-1520-237

Record of Compliance:

(1)

Make an appropriate logbook entry to show compliance with this Special Service Instruction.

Weight and Balance Data:

POUNDS

INCHES AFT

MOMENT/

QTY

PART NO.

NOMENCLATURE

WEIGHT

OF DATUM

1000

70070-20572-011

Mod. Kit

+1.0

308.0

0.308

Weight and Balance: Change resulting from these instructions are as follows:

Change in basic weight:

+1.0 pounds

Moment arm:

308.0 in.

Change in basic moment/1000:

0.308

Manpower (Estimated)

No. of Personel

No. of Hours

Man-hours

Sheet Metal Mechanic

24.0

*48.0

*Does not include time required to prepare helicopter or return it to flight status.

Material Information:

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Mod. Kit, Buttline 34.5,

70070-20572-011

(1)

consisting of:

Mod. Kit, R.H Reinforcement,

70070-20572-012

consisting of:

Collar

HL1087A-6

Collar

HL1087A-8

Pin Collar Assy

HL20PB86-6-3

Pin Collar Assy

HL20PB86-6-4

Pin Collar Assy

HL20PB86-6-6

HL204-6-2

HL204-6-3

E-90

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

HL204-6-4

HL204-6-5

HL204-6-6

HL204-6-7

HL204-6-8

HL204-8-5

HL204-8-6

HL204-8-7

HL204-8-8

Pin, Hi-Lok

HL220-6-2

Pin, Hi-Lok

HL220-6-3

Pin, Hi-Lok

HL220-6-4

Pin, Hi-Lok

HL220-6-5

Pin, Hi-Lok

HL220-6-6

HL220-6-7

Pin, Hi-Lok

HL220-6-8

Pin, Hi-Lok

HL220-8-5

Pin, Hi-Lok

HL220-8-6

Pin, Hi-Lok

HL220-8-7

Pin, Hi-Lok

HL220-8-8

Collar

HL287-6

Collar

HL287-8

Pin, Hi-Lok

HL64PB-6-2

Pin, Hi-Lok

HL64PB-6-3

Pin, Hi-Lok

HL64PB-6-4

Pin, Hi-Lok

HL64PB-6-5

HL64PB-6-6

Pin, Hi-Lok

HL64PB-6-7

Pin, Hi-Lok

HL64PB-6-8

Pin, Hi-Lok

HL64PB-8-5

HL64PB-8-8

Collar

HL93-6

Collar

HL93-8

Rivet

MS20470AD5-2

Rivet

MS20470AD5-5

Rivet

MS20470AD6-5

Rivet

MS20470AD6-6

Reinforcement

70080-70107-222

Mod. Kit, R.H Reinforcement,

70070-20572-013

consisting of:

Collar

HL1087A-6

Collar

HL1087A-8

Pin Collar Assy

HL20PB86-6-3

Pin Collar Assy

HL20PB86-6-4

Pin Collar Assy

HL20PB86-6-6

HL204-6-2

E-91

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

HL204-6-3

HL204-6-4

HL204-6-5

HL204-6-6

HL204-6-7

HL204-6-8

HL204-8-5

HL204-8-6

HL204-8-7

HL204-8-8

Pin, Hi-Lok

HL220-6-2

Pin, Hi-Lok

HL220-6-3

Pin, Hi-Lok

HL220-6-4

Pin, Hi-Lok

HL220-6-5

Pin, Hi-Lok

HL220-6-6

HL220-6-7

Pin, Hi-Lok

HL220-6-8

Pin, Hi-Lok

HL220-8-5

Pin, Hi-Lok

HL220-8-6

Pin, Hi-Lok

HL220-8-7

Pin, Hi-Lok

HL220-8-8

Collar

HL287-6

Collar

HL287-8

Pin, Hi-Lok

HL64PB-6-2

Pin, Hi-Lok

HL64PB-6-3

Pin, Hi-Lok

HL64PB-6-4

Pin, Hi-Lok

HL64PB-6-5

HL64PB-6-6

Pin, Hi-Lok

HL64PB-6-7

Pin, Hi-Lok

HL64PB-6-8

Pin, Hi-Lok

HL64PB-8-5

HL64PB-8-8

Collar

HL93-6

Collar

HL93-8

Rivet

MA20470AD5-2

Rivet

MS20470AD5-5

Rivet

MS20470AD6-5

Rivet

MS20470AD6-6

Reinforcement

70080-70107-223

Source:

(1)

Available through normal supply channels

E-92

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-7-

70070-20572-011

BL 34.5 MODIFICATION KIT

REF

-1

70070-20572-013

M/K L/H REINFORCEMENT

70070-20572-012

M/K R/H REINFORCEMENT

-2

70070-20572-014

BEAM INSTL RH, (Modified from 70212-02112-

012)

REF

70070-20572-015

BEAM INSTL LH, (Modified from 70212-02112-

011)

REF

70070-20572-016

BEAM INSTL RH, (Modified from 70212-02112-

014)

REF

70070-20572-017

BEAM INSTL LH, (Modified from 70212-02112-

013)

REF

-3

70070-20572-041

BEAM ASSY, (Reidentified from 70212-02112-

051)

REF

70070-20572-042

BEAM ASSY, (Reidentified from 70212-02112-

050)

REF

70070-20572-043

BEAM ASSY, (Reidentified from 70212-02112-

043)

REF

70070-20572-044

BEAM ASSY, (Reidentified from 70212-02112-

047)

REF

-4

HL64PB-6-2

HI-LOK PIN, (73197)

HL220-6-2

HI-LOK PIN, (73197)

HL204-6-2

PIN, (73197)

-5

HL1087A-6

COLLAR, (73197)

HL287-6

COLLAR, (73197)

HL93-6

COLLAR, (73197)

-6

HL64PB-6-4

HI-LOK PIN, (73197)

HL220-6-4

HI-LOK PIN, (73197)

HL204-6-4

PIN, (73197)

-7

HL64PB-6-6

PIN, (73197)

HL204-6-6

PIN, (73197)

HL220-6-6

HI-LOK PIN, (73197)

-8

HL20PB86-6-3

PIN COLLAR ASSY, (73197)

-9

HL20PB86-6-6

PIN COLLAR ASSY, (73197)

-10

HL20PB-6-6

. HI-LOK PIN, (73197)

-11

HL86-6

. COLLAR, (73197) (Superseded By HL1086A-

HL1086A-6

. COLLAR, (73197)

-12

MS20470AD6-6

RIVET

-13

HL64PB-6-5

HI-LOK PIN, (73197)

HL204-6-5

PIN, (73197)

HL220-6-5

HI-LOK PIN, (73197)

-14

HL64PB-8-8

PIN, (73197)

HL220-8-8

HI-LOK PIN, (73197)

HL204-8-8

PIN, (73197)

-15

HL1087A-8

COLLAR, (73197)

HL287-8

COLLAR, (73197)

HL93-8

COLLAR, (73197)

-16

MS20470AD5-5

RIVET

-17

MS20470AD6-5

RIVET

-18

HL64PB-6-8

HI-LOK PIN, (73197)

HL220-6-8

HI-LOK PIN, (73197)

HL204-6-8

PIN, (73197)

-19

HL64PB-6-3

HI-LOK PIN, (73197)

HL220-6-3

HI-LOK PIN, (73197)

HL204-6-3

PIN, (73197)

-20

HL64PB-6-7

HI-LOK PIN, (73197)

HL204-6-7

PIN, (73197)

E-94

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

HL220-6-7

. . HI-LOK PIN, (73197)

-21

HL64PB-8-5

. . HI-LOK PIN, (73197)

HL220-8-5

. . HI-LOK PIN, (73197)

HL204-8-5

. . PIN,

(73197)

HL220-8-6

. . HI-LOK PIN, (73197)

HL204-8-6

. . PIN,

(73197)

HL220-8-7

. . HI-LOK PIN, (73197)

HL204-8-7

. . PIN,

(73197)

-22

HL20PB86-6-4

. . PIN COLLAR ASSY, (73197)

-23

HL20PB-6-4

. . . HI-LOK PIN,

(73197)

-24

HL86-6

. . . COLLAR, (73197) (Superseded By HL1086A-

HL1086A-6

. . . COLLAR, (73197)

-25

MS20470AD5-2

. . RIVET

-26

70080-70107-222

. . REINFORCEMENT, (Used on 70070-20572-

012)

70080-70107-223

. . REINFORCEMENT, (Used on 70070-20572-

013)

E-95

DMWR 1-1520-237

E-9. ESSS DOUBLER MODIFICATION KIT (50-15).

Subject: ESSS Doubler; Installation of, dated 31 March 2003

Purpose: Provide instructions to install new doublers and skins between station 295.00 and station 308.00 right and left

sides on UH-60A helicopters equipped with ESSS provisions.

Model:

UH-60A

Description: The following is a brief overview of the work required to modify left and right sides between station 295.00

and 308.00. New doublers and skins are installed between station 295.00 and station 308.00, buttline 16.50 through

34.50. This modification is applicable to UH-60A equipped with ESSS.

Drawings required for modification:

70070-20641, 70652-02150

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

Instructions:

NOTE

• AcompletereviewofthisSSIisrecommendedbeforeinstallingnewdoublersandskinsbetweenstation

295.00 and station 308.00.

• Before beginning this modification procedure, use the material information list to inventory the kit. Make

sure all parts are present and in serviceable condition.

• Where drawing numbers are not listed within individual steps, drawing(s) listed in preceding step(s) are

the controlling authority.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up, and safety practices may not be called out herein. However, these steps and all other required

routine tasks shall be done.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

Preparation for modification and removal of equipment.

(1)

Confirm that all warnings, cautions, and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

E-96

DMWR 1-1520-237

Install right and left side ESSS doublers as follows:

(1)

Modify right side between station 295.00 and station 308.00 as follows (Dwg 70070-20641):

(a)

Remove and save for reuse, strap (70213-02101-173) at buttline 16.50, waterline 269.00 (Sheet 3, Zone

12-B).

(b)

Remove fasteners attaching hat (70219-04203-130) between buttlines 28.75 and 34.50, waterline

269.00 leaving hat (-130) in place (Sheet 3, Zone 9-E).

(c)

Position doubler (70070-20641-102) (top deck) and skin (70085-22135-117) (cabin ceiling) between

buttlines 16.50 and 34.50, waterline 269.00 and mark rivets to be removed (Sheet 3, Zones 10-G and 12-B).

(d)

Remove fasteners identified in previous step.

NOTE

In step B.(1)(e), existing rivets may interfere with the flange on skin (70085-22135-117). If this condition

exists trimming the flange enough to clear rivets is permissible.

(e)

Position and temporarily install skin (70085-22135-117) (cabin ceiling) and doubler (70070-20641-102)

(top deck) (Sheet 3, Zones 10-G and 12-B).

(f)

Remove skin (70085-22135-117) and doubler (70070-20641-102), deburr and touch up as required.

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

(g)

Install skin (70085-22135-117), doubler (70070-20641-102), and strap (70213-02101-173) wet with

sealant (AMS-S-88022, A2 or C20 or equivalent) using fasteners shown (Sheet 3, Zones 12-B and 10-H; Sheet 2, Notes

9, 12 and 13).

(2)

Modify left side between station 295.00 and station 308.00 as follows (Dwgs 70070-20641 and 70652-

02151):

(a)

Remove and discard spacer (70213-02101-174) and nutplate (MS21075-4) at buttline 16.50, waterline

269.00 (Dwg 70070-20641, Sheet 3, Zone 18-H).

(b)

Remove shim (70652-02151-102) at left buttline 16.50 using a nonmetallic scraper, measure and record

thickness of shim (-102) for use in step B.(2)(l) (Dwg 70652-02151, Sheet 1, Zone 12-F).

E-97

DMWR 1-1520-237

(c)

Remove and save for reuse, strap (70213-02101-172) at buttline 16.50, waterline 269.00 (Dwg 70070-

20641, Sheet 3, Zone 18-A).

(d)

Remove fasteners attaching hat (70219-04203-129) between buttlines 28.75 and 34.50, waterline

269.00 leaving hat (-129) in place (Sheet 3, Zone 23-D).

(e)

Remove and discard nutplates (MS21075-3) (two places) and nutplate (MS21069-3) (Sheet 3, Zones 22-

B, 19-B, and 20-H).

(f)

Position doubler (70070-20641-101) (top deck) and skin (70085-22135-113) (cabin ceiling) between

buttlines 16.50 and 34.50, waterline 269.00 and mark rivets to be removed (Sheet 3, Zones 20-B and 23-D).

(g)

Remove fasteners identified in previous step.

NOTE

In step B.(2)(h), existing rivets may interfere with the flange on skin (70085-22135-117). If this condition

exists trimming the flange enough to clear rivets is permissible.

(h)

Position and temporarily install skin (70085-22135-113) (cabin ceiling) and doubler (70070-20641-

101) (top deck) (Sheet 3, Zones 20-B and 23-D).

(i)

Remove skin (70085-22135-113) and doubler (70070-20641-101), deburr and touch up as required.

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

(j)

Install skin (70085-22135-113), doubler (70070-20641-101), and strap (70213-02101-172) wet with

sealant (AMS-S-8802, A2 or C20 or equivalent) using fasteners shown (Sheet 3, Zones 23-D, 20-B, and 18-A; Sheet 2,

Notes 9, 12, and 13).

(k)

Install three new nutplates (MS21075-3) (two places) and MS21069-3) (Sheet 3, Zones 20-B, 22-B and

20-H).

(l)

Install new shim (70652-02151-102) from previous step using adhesive (EA 9309.3NA or equivalent)

(Dwg 70652-02151, Sheet 1, Zone 12-D and Note 2).

Reinstallation of removed equipment:

(1)

Reinstall removed equipment per reference (a).

Record of Compliance:

(1)

Make an appropriate logbook entry to show compliance with this Special Service Instruction.

E-98

DMWR 1-1520-237

Weight and Balance Data:

POUNDS

INCHES AFT

MOMENT/

QTY

PART NO.

NOMENCLATURE

WEIGHT

OF DATUM

1000

70070-20641-011

Mod. Kit

+ 1.9

301.4

0.573

Weight and Balance: Change resulting from these instructions are as follows:

Change in basic weight:

+1.9 pounds

Moment arm: in.

301.4

Change in basic moment/1000:

0.573

Manpower (Estimated)

No. of Personel

No. of Hours

Man-hours

Sheet Metal Mechanic

24.0

*48.0

*Does not include time required to prepare helicopter or return it to flight status.

Material Information

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Mod. Kit, ESSS Doubler,

70070-20641-011

(1)

consisting of:

Mod. Kit, Support R/H Instl,

70070-20641-012

consisting of:

Rivet

MS20470AD5-9

Pin, SWG LKG

NAS1465-04

Pin, SWG LKG

NAS1525-03

Rivet, Blind

NAS1738B4-3

Rivet, Blind

NAS1738B5-9

Skin

70085-22135-117

E-99

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Mod. Kit, Support L/H Instl,

70070-20641-013

consisting of:

Rivet

MS20470AD5-9

Pin, SWG LKG

NAS1465-04

Pin, SWG LKG

NAS1525-03

Rivet, Blind

NAS1738B4-3

Rivet, Blind

NAS1738B5-9

Skin

70085-22135-113

Mod. Kit, Plating Instl,

70070-20641-014

consisting of:

Pin Collar Assy

HL19PB86-6-8

Pin Collar Assy

HL20PB86-6-6

Pin Collar Assy

HL20PB86-6-8

Pin Collar Assy

HL20PB86-6-9

Rivet

MS20426AD3-9

Rivet

MS20470AD4-3

Rivet

MS20426AD5-9

Rivet

MS20470AD6-9

Nutplate

MS21069-3

Nutplate

MS21075-3N

Nutplate

MS21075-4N

Rivet

NAS1097AD3-3

Rivet

NAS1097AD3-9

Rivet

NAS1097AD5-9

Pin, SWG LKG

NAS1466-05

Pin, SWG LKG

NAS1466-06

Pin, SWG LKG

NAS1466-07

Pin, SWG LKG

NAS1466-08

Pin, SWG LKG

NAS1466-09

Doubler

70070-20641-101

Doubler

70070-20641-102

Mod. Kit, Shim Instl,

70070-20641-018

consisting of:

Shim

70652-02151-101

Shim

70652-02151-102

Shim

70652-02151-103

E-100

DMWR 1-1520-237

Consumable Material:

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

Qty

Nomenclature

Part Number

Source

8 oz.

Sealant

AMS-S-8802, A2, C20, or

(1)

equivalent

8 oz.

Adhesive

EA9309.3NA or equivalent

(1)

Source:

(1)

Available through normal supply channels

E-101

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-8-

70070-20641-011

ESSS DOUBLER MODIFICATION KIT

REF

-1

70070-20641-014

M/K PLATING INSTL

-2

70070-20641-015

. PLATING INSTL, (Modified from 70213-02101-

014)

REF

-3

MS20470AD6-9

. RIVET

-4

NAS1466-05

. SWAGE LOCKING PIN

-5

NAS1466-06

. SWAGE LOCKING PIN

-6

NAS1466-07

. SWAGE LOCKING PIN

-7

HL19PB86-6-8

. PIN COLLAR ASSY, (73197)

-8

HL20PB86-6-8

. PIN COLLAR ASSY, (73197)

-9

HL20PB-6-8

. . HI-LOK PIN, (73197)

-10

HL86-6

. . COLLAR, (73197) (Superseded by HL1087A-

HL1087A-6

. . COLLAR, (73197)

-11

HL20PB86-6-9

. PIN COLLAR ASSY, (73197)

-12

HL20PB-6-9

. . HI-LOK PIN, (73197)

-13

HL86-6

. . COLLAR, (73197) (Superseded by HL1087A-

HL1087A-6

. . COLLAR, (73197)

-14

HL20PB86-6-6

. PIN COLLAR ASSY, (73197)

-15

HL20PB-6-6

. . HI-LOK PIN, (73197)

-16

HL86-6

. . COLLAR, (73197) (Superseded By HL1087A-

HL1087A-6

. . COLLAR, (73197)

-17

NAS1466-09

. SWAGE LOCKING PIN

-18

NAS1466-08

. SWAGE LOCKING PIN

-19

MS20470AD4-3

. RIVET

-20

MS20470AD5-9

. RIVET

-21

NAS1097AD5-9

. RIVET

-22

70070-20641-101

. DOUBLER, LH

70070-20641-102

. DOUBLER, RH

-23

MS21075-4N

. NUTPLATE

-24

MS20426AD3-9

. RIVET

-25

MS21075-3N

. NUTPLATE

-26

NAS1097AD3-3

. RIVET

-27

MS21069-3

. NUTPLATE

-28

NAS1097AD3-9

. RIVET

-29

70070-20641-018

M/K SHIM INSTL

-30

70652-02151-101

. SHIM

-31

70652-02151-102

. SHIM

-32

70652-02151-103

. SHIM

-33

70070-20641-013

M/K SUPPORT L/H INSTL

70070-20641-012

M/K SUPPORT R/H INSTL

-34

70070-20641-016

. SUPPORT INSTL, (Modified from 70219-42426-

014)

REF

70070-20641-017

. SUPPORT INSTL, (Modified from 70219-42426-

013)

REF

-35

MS20470AD5-9

. RIVET

-36

NAS1738B5-9

. BLIND RIVET

-37

NAS1738B4-3

. BLIND RIVET

-38

NAS1525-03

. SWAGE LOCKING PIN

-39

NAS1465-04

. SWAGE LOCKING PIN

-40

70085-22135-117

. SKIN, LH (Used on 70070-20641-013)

70085-22135-113

. SKIN, RH (Used on 70070-20641-012)

E-104

DMWR 1-1520-237

E-10. TRDS BRACKETS MODIFICATION KIT (50-20).

Subject: Tail Rotor Drive Shaft Support Brackets; Modification of, dated 31 March 2003

Purpose: Provide instructions for the structural strengthening of the tail rotor drive shaft supports to eliminate cracking.

Model:

UH-60A

Description: The tail rotor drive shaft support brackets at station 410.00 and station 472.00 are modified to improve

the structural strength at these locations.

Drawings required for modification:

70070-20488

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

(b) SSI No. 50-9, Drive Shaft Supports; Modification of, dated March 31, 2003

UH-60L, EH-60A, UH-60Q and HH-60L Helicopters

Instructions:

NOTE

• AcompletereviewofthisSSIisrecommendedbeforeincorporatingthetailrotordriveshaftsupport

brackets modification kit.

• Before beginning this modification procedure, use the material information list to inventory the modification

kit. Make sure all parts are present and in serviceable condition.

• Where drawing numbers are not listed within individual step(s), drawing(s) listed in preceding step(s) are

the controlling authority.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up, and safety practices may not be called out herein. However, these steps and all other required

routine tasks shall be done.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

• This modification is to be done concurrently with reference (b).

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions, and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

E-105

DMWR 1-1520-237

Modification of tail rotor drive shaft support brackets:

CAUTION

TO AVOID DAMAGING COMPONENTS, USE EXTREME CARE WHEN DRILLING INTO AIRFRAME.

TEMPORARILY MOVE ANY TUBE ASSEMBLIES OR WIRING HARNESSES OUT OF REWORK AREA.

(1)

Mark location on top skin of support (70361-03010-114) (Dwg 70070-20488, Sheet 4, Zone 20-B).

(2)

Remove support (70361-03010-114) at station 410.00, buttline 0.00 (Sheet 4, Zone 20-B and Sheet 3,

Note 26).

(3)

Position new support (70361-03010-125) over station 410.00 where support (70361-03010-114) was

removed in previous step.

(4)

Line up forward face of new support (70361-03010-125) where marked location was noted in step B.(1).

(5)

Transfer drill from angle (70361-03010-101) (inside transition ceiling) through new support (70361-03010-

125) and put support (-125) aside for installation in later steps.

(6)

Remove former (70361-03010-110) near station 410.00, right buttline 5.00 (Sheet 4, Zone 14-H and Sheet

3, Note 26).

(7)

Remove former (70361-03010-109) near station 410.00, left buttline 5.00 (Sheet 4, Zones 14-E and 14-F;

Sheet 3, Note 26).

(8)

Mark location on top skin of support (70219-03006-107) (Sheet 7, Zone 13-D).

(9)

Remove support (70219-03006-107) near station 470.50 (Sheet 7, Zone 13-D).

(10)

Position new support (70219-03006-114) over station 470.00 where support (70219-03006-107) was

removed in previous step.

(11)

Line up forward face of new support (70219-03006-114) where marked location was noted in step B.(8).

(12)

Transfer drill from angle (70219-03006-108) (inside transition ceiling) through new support (70219-

03006-114) and set aside support (-114) for installation in later steps.

(13)

Remove radius block (SS1058A7-28-29) and gusset (70219-03006-106) at station 472.00, right buttline

4.00 (Sheet 7, Zones 11-G and 11-H; Sheet 3, Note 28).

(14)

Remove radius block (SS1058A7-28-29) and gusset (70219-03006-105) at station 472.00, left buttline

4.00 (Sheet 7, Zones 11-F and 11-G; Sheet 3, Note 28).

(15)

Remove stringer (70212-03001-149) between station 470.00 and station 485.00, buttline 0.00 (Sheet 7,

Zone 9-G and Sheet 4, Note 44).

(16)

Remove angle (70219-03006-102 or -108) near station 472.50, buttline 0.00 (Sheet 7, Zone 11-C and

Sheet 4, Notes 40 and 41).

E-106

DMWR 1-1520-237

(17)

Remove remaining fasteners, as required (Sheets 4 and 7).

Installation of tail rotor drive shaft support brackets.

(1)

Locate and temporarily install new radius block (SS1058A7-20-51) and former (70070-20488-102) at sta-

tion 410.00, right buttline 5.00 (Dwg 70070-20488, Sheet 4, Zones, 14-G and 14-H).

(2)

Locate and temporarily install new radius block (SS1058A7-20-51) and former (70070-20488-103) at sta-

tion 410.00, left buttline 5.00 (Sheet 4, Zone 14-E).

(3)

Locate and temporarily install support (70361-03010-125) (previously fit-out) at station 410.00, buttline

0.00 (Sheet 4, Zone 19-B and Sheet 2, Notes 10 and 11).

(4)

Locate and temporarily install stringer (70212-03001-168) between station 470.00 and station 485.00, but-

tline 0.00 (Sheet 7, Zones 9-F to 12-F).

(5)

Locate and temporarily install new angle (70219-03006-108) near station 472.50, buttline 0.00 (Sheet 7,

Zone 11-C).

(6)

Locate and temporarily install radius block (SS1058A7-28-29) and gusset (70070-20488-106) at station

472.00, right buttline 4.00 (Sheet 7, Zone 11-H).

(7)

Locate and temporarily install radius block (SS1058A7-28-29) and gusset (70070-20488-105) at station

472.00, left buttline 4.00 (Sheet 7, Zone 11-F).

(8)

Locate and temporarily install support (70219-03006-114) (previously fit-out) at station 472.50, buttline

0.00 (Sheet 7, Zone 13-C, and Sheet 2, Notes 10 and 11).

(9)

Locate and temporarily install clip (70212-03001-171) at station 485.00, buttline 0.00 (Sheet 7, Zone 9-F).

(10)

Transfer drill remaining fastener holes for assembly.

(11)

Line up new brackets (70070-20488-101 and -104) at stations 410.00 and 470.00 per reference (c).

(12)

Locate and temporarily install bracket (70070-20488-104) at station 472.50, buttline 0.00 (Sheet 7, Zone

11-D).

(13)

Locate and temporarily install bracket (70070-20488-101) at station 410.00, buttline 0.00 (Sheet 4, Zone

18-B and Sheet 2, Notes 9, 10 and 11).

(14)

Remove fitted parts, deburr and touch up as required.

(15)

Install parts removed in previous step using fasteners shown (Sheet 1, Note 2 and Sheet 2, Note 12).

Reinstallation of removed equipment:

(1)

Install removed equipment per reference (a).

Record of Compliance:

(1)

Make an appropriate logbook entry to show compliance with this Special Service Instruction.

E-107

DMWR 1-1520-237

Weight and Balance Data:

POUNDS

INCHES AFT

MOMENT/

QTY

PART NO.

NOMENCLATURE

WEIGHT

OF DATUM

1000

70070-20488-023

Mod. Kit

0.3

448.1

0.1

Weight and Balance: Change resulting from these instructions are as follows:

Change in basic weight:

+ 0.3 pounds

Moment arm:

448.1 in.

Change in basic moment/1000:

0.1

Manpower (Estimated)

No. of Personel

No. of Hours

Man-hours

Sheet Metal Mechanic

18.0

*36.0

*Does not include time required to prepare helicopter or return it to flight status.

Material Information:

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Mod. Kit, Tail Rotor Driveshaft

70070-20488-023

(1)

Support Brackets,

consisting of:

Mod. Kit, Support Installation,

70070-20488-012

consisting of:

Collar

HL1087A-5

Pin, Hi Lok

HL20PB-5-2

Pin, Hi Lok

HL20PB-5-3

Pin, Hi Lok

HL22D-5-3

Pin, Hi Lok

HL22D-5-6

Collar

HL77-5TW

Rivet

MS20470AD5-9

Radius Block

SS1058A7-20-51

Bracket

70070-20488-101

Former

70070-20488-102

Former

70070-20488-103

E-108

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Support

70361-03010-125

Mod. Kit, Support Installation,

70070-20488-022

consisting of:

Rivet

MS20470AD5-9

Pin Collar Assy

HL20PB86-5-2

Angle

70219-03006-108

Rivet

MS20470AD4-9

Radius Block

SS1058A7-28-29

Bracket

70070-20488-104

Stringer

70212-03001-168

Clip

70212-03001-171

Collar

NAS1080D05

Pin, SWG LKG

NAS1525-03

Gusset

70070-20488-105

Gusset

70070-20488-106

Support

70219-03006-114

Consumable Material:

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

Qty

Nomenclature

Part Number

Source

4 oz.

Sealant

AMS-S-8802, A2, or C20, or

(1)

equivalent

Source:

(1)

Available through normal supply channels

E-109

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-9-

70070-20488-023

TAIL ROTOR DRIVE SHAFT BRACKETS

MODIFICATION KIT

REF

-1

70070-20488-012

M/K SUPPORT INSTL

-2

70070-20488-013

. SUPPORT INSTL

REF

-3

MS20470AD5-9

. RIVET,

-4

70361-03010-125

. SUPPORT

-5

HL22D-5-6

. HI-LOK PIN, (73197)

-6

HL77-5TW

. COLLAR, (73197)

-7

HL22D-5-3

. HI-LOK PIN, (73197)

-8

HL20PB-5-2

. HI-LOK PIN, (73197)

-9

HL1087A-5

. COLLAR, (73197)

-10

HL20PB-5-3

. HI-LOK PIN, (73197)

-11

SS1058A7-20-51

. RADIUS BLOCK

-12

70070-20488-102

. FORMER

-13

70070-20488-103

. FORMER

-14

70070-20488-101

. BRACKET

-15

70070-20488-022

M/K SUPT INSTL

-16

70070-20488-024

. SUPPORT INSTL (Reidentifed from 70219-

03006-011)

REF

70070-20488-025

. PLATING ASSY (Reidentified from 70213-

03001-043)

REF

70070-20488-026

. PLATING ASSY (Reidentified from 70213-

03001-044)

REF

70070-20488-027

. PLATING ASSY (Reidentified from 70213-

03001-045)

REF

70070-20488-028

. PLATING ASSY (Reidentified from 70213-

03001-046)

REF

-17

MS20470AD4-9

. RIVET

-18

MS20470AD5-9

. RIVET

-19

70219-03006-114

. SUPPORT

-20

HL20PB86-5-2

. PIN COLLAR ASSY, (73197)

-21

HL20PB-5-2

. . HI-LOK PIN, (73197)

-22

HL86-5

. . COLLAR, (73197) (Superseded By HL1087A-

HL1087A-5

. . COLLAR, (73197)

-23

SS1058A7-28-29

. RADIUS BLOCK

-24

70070-20488-106

. GUSSET

-25

70070-20488-105

. GUSSET

-26

70070-20488-104

. BRACKET

-27

70219-03006-108

. ANGLE

-28

70212-03001-168

. STGR #0

-29

NAS1525-03

. SWAGE LOCKING PIN

-30

NAS1080D05

. COLLAR

-31

70212-03001-171

. CLIP

E-111

DMWR 1-1520-237

E-11. STATION 485 MODIFICATION KIT (50-34).

Subject: Transition Station 485.00; Modification of, dated 31 March 2003

Purpose: Provide instructions to remove and replace fitting at station 485.00.

Model:

UH-60A

Description: The following is a brief overview of the work required to modify station 485.00. Fitting is removed and

replaced, using new fasteners.

Drawings required for modification:

70000-03200, 70070-20575, 70211-03009, 70213-03001

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

Instructions:

NOTE

• A complete review of this SSI is recommended before reworking station 485.00.

• Before beginning this modification procedure, use the material information list to inventory the kit. Make

sure all parts are present and in serviceable condition.

• Where drawing numbers are not listed within individual steps, drawing(s) listed in preceding step(s) are

the controlling authority.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up, and safety practices may not be called out herein. However, these steps and all other required

routine tasks shall be done.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

Installation of new brackets at station 485.00:

(1)

Locate and remove fitting (70209-03007-125) at station 485.00 left side (Dwg 70211-03009, Sheet 1,

Zone 21-L).

(2)

Position new fitting (70209-03007-125) at station 485.00 and transfer drill holes from structure, through fit-

ting.

E-112

DMWR 1-1520-237

(3)

Remove fitting (70209-03007-125) deburr and touch up as required.

(4)

Install fitting (70209-03007-125) at station 485.00 using hardware shown (Dwg 70213-03001, Sheet 1,

Zone 23-F).

(5)

Line ream/drill 0.3125-inch diameter hole from backside fitting into new fitting (70209-03007-125).

(6)

Install remaining new hardware to fitting (70209-03007-125) (Dwg 70000-03200, Sheet 1, Zone 4-E, and

Note 1).

Record of Compliance:

(1)

Make an apropriate logbook entry to show compliance with this Special Service Instruction.

Weight and Balance Data:

Negligible:

Manpower (Estimated)

No. of Personel

No. of Hours

Man-hours

Structural Mechanic

4.0

*4.0

*Does not include time required to prepare helicopter or return it to flight status.

Material Information:

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Mod. Kit, Station 485.00

70070-20575-012

(1)

consisting of:

Washer

MS20002-5

Washer

MS20002C5

Rivet

MS20470AD5-4

Rivet

MS20470AD6-4

Rivet

NAS1097AD6-5

Pin, Swg Lkg

NAS1446-04

Bolt

NAS625-14

Nut

SS5081-05

Fitting

70209-03007-125

Source:

(1)

Available through normal supply channels

E-113

DMWR 1-1520-237

E-12. LOWER AFT TRANSITION/FOAM LINER MODIFICATION KIT (50-6).

Subject: Lower Aft Transition Section, Rework of, dated 31 March 2003

Purpose: Provide instructions to rework lower aft transition section structure.

Model:

UH-60A

Description: The lower aft transition section structure is removed, corrosion treated, and new structure is installed.

Drawings Required for Modification:

70203-03003, 70211-03001, 70211-03002, 70211-03003, 70211-03004, 70211-03005, 70211-

03006, 70211-03007, 70211-03009, 70212-03002, 70212-03003, 70209-03012, 70209-03022, 70213-02501,

70213-03002, 70213-03004, 70070-20577, 70217-03001, 70219-03011

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

(b) SSI 50-26, Station 379.00 Frame, Modification of dated 31 March, 2003

Instructions:

NOTE

• A complete review of this directive is recommended before starting the installation of the lower aft transition

section modification.

• Before beginning this modification procedure, use the material information list to inventory the kit. Make

sure all parts are present and in serviceable condition.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up and safety practices may not be called out herein. However, these steps and all other required

routine tasks shall be done.

• Where drawing numbers are not listed within individual steps, drawing(s) listed in preceding step(s) are

the controlling authority.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

• This modification must be done concurrently with reference (b).

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions, and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

(3)

Support helicopter forward of station 379.00 with locally manufactured support.

(4)

Support helicopter aft of station 485.00 with locally manufactured support.

E-116

DMWR 1-1520-237

Modification, lower aft transition section.

(1)

Remove lower aft transition section structure as follows:

(a)

Remove aft fuselage fuel sump and drain door assemblies (70217-03001-041 and 70217-03001-042 or

70217-03001-045 and 70217-03001-046) Keep serviceable parts for reuse (Dwg 70217-03001, Sheet 1, Zones 5-B,

5-C, and 6-E, Dwg 70070-20577, Sheet 5, Note 48).

(b)

Remove aft fuselage extended range fuel dump outlet cover (70209-03022-101) and scuppers (70209-

03022-101 and 70209-03022-103). Keep serviceable parts for reuse (Dwg 70209-03022, Sheet 1, Zones 11-E and

12-F).

(c)

Remove aft fuselage fuel vent assembly (70209-03012-041). Keep serviceable parts for reuse (Dwg

70209-03012, Sheet 1, Zone 11-E).

(d)

Remove aft fuselage foam, and scrap.

NOTE

The following airframe parts, when removed are kept for use as templates and then scraped.

(e)

Remove station 379.00 strap (70213-02501-126) (Dwg 70213-02501, Sheet 3, Zone 15-A).

(f)

Remove doubler (70213-03002-113) (Dwg 70213-03002, Sheet 3, Zone 16-B).

(g)

Remove aft fuselage antenna doubler (70203-03003-101) (Dwg 70203-03003, Sheet 1, Zone 12-C).

NOTE

The following steps are done to aid in removing skins.

(h)

Remove rivets from left and right buttlines 30.00 through buttlines 40.00, station 379.00 through station

485.00 and roll skins back as necessary.

(i)

Remove rivets from station 379.00 forward, between buttlines 30.00, and roll skins back.

(j)

Remove station 379.00 through station 443.50 left and right side skins (70213-03002-116, 70213-

03002-117, and 70213-03002-118) (Dwg 70213-03002, Sheet 1, Zone 15-A, Sheet 3, Zone 11-B).

(k)

Remove doubler (70213-03004-101) and bracket angles (SS1083-147, SS1083-192, and SS1083-237)

(Dwg 70213-03004, Sheet 1, Zones 8-E, 7-F, 7-G, and 7-H).

(l)

Remove station 443.50 through station 485.00 left and right side skins (70213-03002-107, 70213-

03002-108, and 70213-03002-119) (Dwg 70213-03002, Sheet 1, Zone 10-B, and Sheet 3, Zone 8-B).

(m)

Remove left and right side No. 19 stringers (70212-03002-117 and 70212-03002-118) at station

379.00, station 398.00, station 416.60, station 424.90, and station 443.50 frames (Dwgs 70070-20577, Sheet 5,

Zones 15-G and 15-C, 70212-03002, Sheet 2, Zones 4-F through 17-F, and Sheet 1, Section A-A, Zone 11-L).

(n)

Remove left and right side No. 20 stringers (70212-03002-113 and 70212-03002-114) at station

379.00, station 398.00, station 416.60, station 424.90, and station 443.50 frames (Dwg 70070-20577, Sheet 5,

Zones 15-F and 15-C, Dwg 70212-03002, Sheet 2, Zones 4-N through 17-, and Sheet 1, Section A-A, Zone 11-L).

E-117

DMWR 1-1520-237

(o)

Remove left and right side No. 22 stringers (70212-03002-103, 70212-03002-104, 70212-03002-

105, 70212-03002-106) at station 379.00, station 398.00, station 416.60, station 424.90, and station 443.50 frames

(Dwg 70070-20577, Sheet 5, Zones 15-E, 15-D, 14-H, and 14-B, Dwg 70212-03002, Sheet 1, Zones 6-P through 13-P

and 15-P through 19-P, Section A-A, Zone 11-L).

(p)

Remove No. 23 stringer (70212-03002-111) at station 379.00 through station 416.50 (Dwg 70070-

20577, Sheet 5, Zone 15-D, Dwg 70212-03002, Sheet 2, Zones 6-E through 10-F).

(q)

Remove aft fuselage left and right side beam assemblies (70212-03003-041, 70212-03003-042,

70212-03003-043, and 70212-03003-044) and angle splices (70212-03003-131 and 70212-03003-132), station

379.00 through station 443.50, buttline 10.00 (Dwg 70070-20577, Sheet 6, Zones 15-E and 15-D, Dwg 70212-

03003, Sheet 1, Zones 15-E, 22-L, and 24-E).

(r)

Remove aft fuselage left and right side beam assemblies (70212-03003-048, 70212-03003-049, 70212-

03003-047, and 70212-03003-050), cap angles (70212-03003-115 and 70212-03003-116), and splice angles

(70212-03003-141 and 70212-03003-142), station 379.00 through station 443.50, buttline 30.00 (Dwg 70070-

20577, Sheet 6, Zones 15-C and 15-G, Dwg 70212-03003, Sheet 2, Zones 10-H, 15-G, 15-D, and 15-L).

(s)

Remove station 398.00 shear angle (70211-03002-101) (Dwg 70211-03002, Sheet 1, Zone 15-B).

(t)

Remove station 408.30 intercostals (70211-03003-101, 70211-03003-102, 70211-03003-103, and

70211-03003-104), angles (70211-03003-114 and 70211-03003-115), and gussets (70211-03003-116, 70211-

03003-117, and 70211-03003-118) (Dwg 70211-03003, Sheet 1, Zones 12-A, 14-A, 14-D, 13-D, and 9-D).

(u)

Remove station 416.60 intercostals (70211-03004-101, 70211-03004-102, 70211-03004-105, and

70211-03004-106), stiffeners (70211-03004-103, 70211-03004-104, 70211-03004-107, and 70211-03004-108),

angles (70211-03004-117, 70211-03004-118, 70211-03004-119, 70211-03004-120, 70211-03004-121, 70211-

03004-122, 70211-03004-126, and 70211-03004-127), between left and right side buttlines 29.97 (Dwg 70211-

03004, Sheet 1, Views C-C and F-F, Zones 10-A through 21-D, 13-D, and 9-E).

(v)

Remove station 424.90 intercostals (70211-03005-101, 70211-03005-102, 70211-03004-103, and

70211-03004-104) and angles (70211-03005-115, 70211-03005-116, 70211-03005-117, and 70211-03005-118,

70211-03005-120, 70211-03005-121, 70211-03004-117, 70211-03004-118, 70211-03004-119, and 70211-

03004-120), between left and right side buttlines 29.99 (Dwg 70211-03005, Sheet 1, Views A-A and B-B, Zones 10-A,

11-A, 12-B, 14-D, 9-F, 17-D, and 22-D).

(w)

Remove station 433.20 frames (70211-03006-101, 70211-03006-102, 70211-03006-103, and

70211-03006-104), gussets (70211-03006-114), and angles (70211-03006-115 and 70211-03006-0116) between

left and right side buttlines 30.00 (Dwg 70211-03006, Sheet 1, Zones 10-A through 22-D).

(x)

Remove station 443.50 shear angle (70211-03007-185) (Dwg 70211-03007, Sheet 1, Zone 14-B).

(y)

Remove No. 22 stringers (70212-03002-107 and 70212-03002-108) between station 464.00 and sta-

tion 485.00 (Dwg 70070-20577, Sheet 5. Zones 9-E and 9-F).

(z)

Remove stringers (70212-03002-124 and 70212-03002-123) between station 464.00 and 485.00

(Sheet 5, Zones 11-E and 9-E).

(aa)

Remove No. 20 stringers (70212-03002-115 and 70212-03002-116) at station 443.50, 464.00, and

station 485.00 (Dwg 70070-20577, Sheet 5, Zones 10-C and 10-F, 70212-03002, Sheet 1, Section A-A, Zone 11-L).

(ab)

Remove No. 17 stringers (70212-03002-109 and 70212-03002-110) at station 443.50, station

464.00, and station 485.00 (Dwg 70070-20577, Sheet 5, Zones 11-B and 10-G, Dwg 70212-03002, Sheet 1, Section

A-A, Zone 11-L).

E-118

DMWR 1-1520-237

(ac)

Remove buttline 10.00 stringers (70212-03002-119 and 70212-03002-120) at station 443.50, station

464.00, and station 485.00 (Dwgs 70070-20577, Sheet 5, Zones 9-D and 9-F, 70212-03002, Sheet 1, Section A-A,

Zone 11-L).

(2)

Install lower aft transition section structure as follows:

(a)

Inspect lower aft transition section structure for corrosion and repair damaged areas (Dwg 70070-20577,

Sheet 5, Note 48).

(b)

Install station 398.00 shear angle (70211-03002-101) (Dwg 70070-20577, Sheet 6, Zone 16-F, Note

43).

(c)

Install station 408.30 intercostals (70211-03003-101, 70211-03003-102, 70211-03003-103, and

70211-03003-104), angles (70211-03003-114 and 70211-03003-115), and gussets (70211-03003-116, 70211-

03003-117, and 70211-03003-118) (Sheet 6, Zone 14-B, Note 40).

(d)

Install station 416.60 intercostals (70211-03004-101, 70211-03004-102, 70211-03004-103, 70211-

03004-104, 70211-03004-105, and 70211-03004-106), stiffeners (70211-03004-107 and 70211-03004-108), and

angles (70211-03004-117, 70211-03004-118, 70211-03004-119, 70211-03004-120, 70211-03004-121, 70211-

03004-122, 70211-03004-126, and 70211-03004-127) (Sheet 6, Zone 12-B, Note 39).

(e)

Install station 424.90 intercostals (70211-03005-101, 70211-03005-102, 70211-03005-103, and

70211-03005-104) and angles (70211-03005-115. 70211-03005-116, 70211-03005-117, 70211-03005-118,

70211-03005-120, 70211-03005-121, 70211-03004-117, 70211-03004-118, 70211-03004-119, and 70211-

03004-120) (Sheet 6, Zone 12-H, Note 36).

(f)

Install station 433.20 frames (70211-03006-101, 70211-03006-102, 70211-03006-103, and 70211-

03006-104), gussets (70211-03006-114), and angles (70211-03006-115 and 70211-03006-116) (Sheet 6, Zone 11-

G, Note 37).

(g)

Install station 443.50 shear angle (70211-03007-185) (Sheet 6, Zone 11-B, Note 38).

NOTE

• In the following step, beam assemblies (70212-03003-554 and 70212-03003-544) are installed in place

of (70212-03003-054 and 70212-03003-044). The splice angles (70212-03003-132 and 70212-

03003-131) are preinstalled on (70212-03003-054 and 70212-03003-044) creating (70212-03003-

554 and 70212-03003-544).

• After installation is completed the (70212-03003-554 and 70212-03003-544) are reidentified to

(70212-03003-054 and 70212-03003-044).

(h)

Install aft fuselage left and right side beam assemblies (70212-03003-041, 70212-03003-554, 70212-

03003-042, and 70212-03003-544) between station 379.00 and station 443.50, buttline 10.00 (Dwgs 70212-03003,

Sheet 1, Zones 24-F, 24-G, and 22-L, Dwg 70211-03007, Sheet 1, Section A-A, Zone 9-A).

NOTE

• In the following step, beam assemblies (70212-03003-555 and 70212-03003-548) are installed in place

of (70212-03003-055 and 70212-03003-048). The splice angles (70212-03003-142 and 70212-

03003-141) are preinstalled on (70212-03003-055 and 70212-03003-048) creating (70212-03003-

555 and 70212-03003-548).

E-119

DMWR 1-1520-237

• After installation is completed the (70212-03003-555 and 70212-03003-548) are reidentified to

(70212-03003-055 and 70212-03003-048).

(i)

Install aft fuselage left and right side beam assemblies (70070-20577-041, 70212-03003-555, 70212-

03003-548, and 70070-20577-042) and cap angles (70212-03003-115 and 70212-03003-116) between station

379.00 and station 443.50, buttline 30.00 (Dwg 70212-03003, Sheet 2, Zone 15-D, 15-L, 18-E, and 18-F, Dwg

70211-03007, Sheet 1, Zone 11-C through 11-E).

(j)

Install No. 23 stringer (70212-03002-111) between station 379.00 and station 398.00, buttline 0.00

(Dwg 70213-03002, Sheet 3, Zone 17-C, Dwg 70211-03001, Sheet 1, Section R-R, Zone 8-F, Dwg 70212-03002,

Sheet 1, Zone 6-F).

(k)

Install left and right side No. 22 stringers (70212-03002-103 and 70212-03002-104) between station

379.00 and station 416.60, buttline 5.00 (Dwg 70213-03002, Sheet 3, Zone 17-C and Dwg 70212-03002, Sheet 1,

Section A-A, Zones 11-L and 13-N).

(l)

Install left and right side No. 20 stringers (70212-03002-113 and 70212-03002-114) between station

379.00 and station 443.50, buttline 16.70 (Dwg 70213-03002, Sheet 3, Zone 17-E, Dwg 70211-03001, Sheet 1, Sec-

tion S-S, Zone 5-H, Dwg 70211-03007, Sheet 1, Section B-B, Zone 7-A, Dwg 70212-03002, Sheet 1, Section A-A,

Zone 11-L).

(m)

Install left and right side No. 19 stringers (70212-03002-117 and 70212-03002-118) between station

379.00 and station 443.50, buttline 23.70 (Dwg 70213-03002, Sheet 3, Zone 17-F, Dwg 70211-03007, Sheet 1, Sec-

tion AB-AB, Dwg 70212-03002, Sheet 1, Section A-A, Zone 11-L).

(n)

Install left and right side No. 22 stringers (70212-03002-105 and 70212-03002-106) between station

424.90 and station 443.50, buttline 5.00 (Dwg 70213-03002, Sheet 3, Zone 10-A, Dwg 70212-03002, Sheet 1, Sec-

tion A-A, Zones 11-L and 15-J).

(o)

Install position No. 22 stringers (70212-03002-107 and 70212-03002-108) between station 464.00

and station 485.00 (Dwg 70213-03002, Sheet 3, Zone 7-B, Dwg 70211-03009, Sheet 1, Section R-R, Zone 8-J).

(p)

Install buttline 10.00 stringers (70212-03003-119 and 70212-03003-120) at station 443.50, station

464.00, and station 485.00 (Dwg 70213-03002, Sheet 1, Zone 6-G, Dwg 70211-03007, Sheet 1, Section A-A, Zone

8-A, Dwg 70211-03009, Sheet 1, Section F-F, Zone 4-J, Dwg 70212-03002, Sheet 1, Section A-A, Zone 11-L).

(q)

Install stringer (70212-03002-123) forward of station 485.00, buttline 0.00 (Dwg 70213-03002, Sheet

3, Zone 7-B, Dwg 70211-03009, Sheet 1, Section S-S, Zone 9-B).

(r)

Install stringer (70212-03002-124) aft of station 464.00 (Dwg 70213-03002, Sheet 3, Zones 8-A, Note

16).

NOTE

The nutplates for the IFF antenna are installed after the skins and structure are urethane coated.

(s)

Install IFF antenna doubler (70213-03004-101) with angles (SS1083-147, SS1083-192, and SS1083-

237) (Dwg 70070-20577, Sheet 9-D and Sheet 2, Note 18).

(t)

Install No. 20 stringers (70213-03002-115 and 70213-03002-116) at station 443.50, station 464.00,

and station 485.00 (Dwg 70213-03002, Sheet 1, Zone 7-F, Dwg 70211-03007, Sheet 1, Section B-B, Zone 7-A, Dwg

70211-03009, Sheet 1, Section P-P, Zone 9-L, Dwg 70212-03002, Sheet 1, Section A-A, Zone 11-L).

E-120

DMWR 1-1520-237

(u)

Install No. 19 stringers (70212-03003-125 and 70212-03003-126) at station 443.50, station 464.00,

and station 485.00, buttline 10.00 (Dwg 70213-03002, Sheet 3, Zone 8-G, Zone 10-B, and Dwg 70211-03009, Sheet

1, Section N-N, Zone 14-D, Dwg 70212-03002, Sheet 1, Section A-A, Zone 11-L).

(v)

Install No. 17 stringers (70212-03002-109 and 70212-03002-110), at station 443.50, station 464.00,

and 485.00, buttline 30.00 (Dwg 70213-03002, Sheet 1, Zone 8-H, Dwg 70211-03007, Sheet 1, Section F-F, and Dwg

70211-03009, Sheet 1, Section M-M, Zone 7-L, Dwg 70212-03002, Sheet 1, Section A-A, Zone 11-L).

(w)

Position skins (70213-03002-107, 70213-03002-119, 70213-03002-108), from station 443.50

through station 485.00. Transfer drill fastener holes from structure and doublers through skins (Dwg 70070-20577,

Sheet 5, Zones 10-B, 9-D, and 10-F, Dwg 70213-03002, Sheet 1, Zone 10-B, Sheet 3, Zone 8-B).

(x)

Position skin (70070-20577-103) and transfer hole cutout from doubler (70213-03004-101) installed in

step (s) on page 6 (Dwg 70070-20577, Sheet 5, Zone 9-D, Notes 19, 32 and 57).

(y)

Transfer drill nutplate holes from IFF antenna doubler through skin.

(z)

Position skins (70213-03002-117, 70213-03002-118, 70213-03002-116), from station 379.00

through station 443.50. Transfer drill fastener holes from structure and doublers through skins (Dwg 70070-20577,

Sheet 5, Zones 16-F and 16-C, Dwg 70213-03002, Sheet 1, Zone 15-A, Sheet 3, Zone 11-B).

NOTE

The antenna mount doubler nutplates are installed after the skins and structure are urethane coated.

(aa)

Position antenna mount doubler (70203-03003-101) on skin at station 443.50 through station 464.00.

Drill fastener and nutplate holes (Dwg 70070-20577, Sheet 5, Zone 10-C, Dwg 70203-03003, Sheet 1, Zone 13-C).

(ab)

Position serviceable aft fuselage fuel vent assembly (70209-03012-041), kept for reuse, into skin cutout

between station 443.50 and station 450.00, left buttline 20.00. Drill fastener holes (Dwg 70209-03012, Sheet 1, Zone

11-E).

(ac)

Position serviceable aft fuselage extended range fuel dump outlet scuppers (70209-03022101 and

70209-03022-103) and cover (70209-03022-102), kept for reuse, into skin cutout between station 443.50 and station

450.00, right buttline 20.00. Drill fastener holes (Dwg 70209-03022, Sheet 1, Zone 12-D).

(ad)

Position new fuel sump drain doublers (70217-03001-111) and doors (70217-03001-041 and 70217-

03001-042 or 70217-03001-045 and 70217-03001-045 and 70217-03001-046), into skin cutouts, between station

416.60 and station 424.90, between left and right side buttlines 3.00 and 10.00. Drill fastener holes (Dwg 70217-

03001, Sheet 1, Zones 4-B and 6-E).

(ae)

Drill stud receptacle holes from doublers (70217-03001-111) through skin.

(af)

Position doubler (70213-03002-113) on skin between station 385.00 and station 393.00, buttline 0.00

and left side buttline 5.00. Drill fastener holes (Dwg 70213-03002, Sheet 3, Zone 16-A).

(ag)

Drill eight nutplate holes in skin (Sheet 3, Detail B, Zone 5-H).

(ah)

Position strap (70213-02501-126) on skins, station 379.00. Drill fastener holes (Dwg 70213-02501,

Sheet 3, Detail H, Zone 15-A).

(ai)

Drill 40 0.320-inch diameter drain holes in skins (Dwg 70070-20577, Sheet 5, Zone 14-E, Note 32).

(aj)

Remove doublers, scuppers, doors, fuel vent, strap, and skins.

E-121

DMWR 1-1520-237

NOTE

• The receptacles used in the following step are for the fuel sump assemblies (70217-03001-045 and

70217-03001-046) only.

• In the next two steps, do not install fasteners that are used to secure doublers, scuppers, doors, fuel vent,

and strap.

(ak)

Install receptacles (212-12) and nutplates (MS21075-3 and MS21059-3) with fasteners shown on IFF

antenna doubler, station 443.50 through station 464.00 antenna mount, fuel dump outlet, fuel sump drain, and station

389.00 antenna mount (Dwg 70213-03004, Sheet 1, Zone 7-G, Dwg 70203-03003, Sheet 1, Zone 11-B, Dwg 70217-

03001, Sheet 1, Zone 3-E, Dwg 70213-03002, Sheet 3, Zone 17-A).

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

(al)

Touch up skins and structure with epoxy primer ( MIL-P-85582 or equivalent), urethane (MIL-C-85285 or

equivalent), and corrosion preventive compound, (Dinotrol AV30 or AV15 or equivalent) (Dwg 70070-20577, Sheet 5,

Note 47).

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

NOTE

The side skins that were loosened to remove the bottom skin are reattached when the bottom skins are

installed.

(am)

Install skins with fasteners wet with sealant (AMS 3265, Class A or Class C or equivalent) between sta-

tion 443.50 and station 485.00 using drawing cross hatch sections (Dwg 70213-03002, Sheet 5, Zones 5-C through 3-E

and 14-H through 12-F, Dwg 70203-03003, Sheet 2, Dwg 70070-20577, Sheet 5, Note 10, 11, 21, 12, 13, 14, 15,

19, 17, and 47).

(an)

Install skins with fasteners wet with sealant (AMS 3265, Class A or Class C or equivalent) between station

379.00 and station 443.50 using drawing cross hatch sections (Dwg 70213-03002, Sheet 5, Zones 8-B through 5-E and

17-I through 14-F, Dwg 70217-03001, Sheet 2, Dwg 70070-20577, Sheet 5, Note 23, 24, 25, 26, 27, 28, and 47).

E-122

DMWR 1-1520-237

(ao)

Install doublers, scuppers, doors, fuel vent, strap with sealant (AMS 3265, Class A or Class C or

equivalent) using cross hatch sections (Dwg 70203-03003, Sheet 2, Dwg 70217-03001, Sheet 2, Dwg 70213-02501,

Sheet 5, Section AE-AE, Zone 6-B, Dwg 70070-20577, Sheet 5, Note 47).

(ap)

Bond foam blocks (70219-03001-123 through 70219-03011-144) to structure with adhesive, (444R)

(Dwg 70219-03011, Sheet 1 Note 3).

NOTE

There are no reidentification of structure assemblies or installations created by this modification.

Reinstallation of removed equipment:

(1)

Install removed equipment per reference (a).

Record of Compliance:

(1)

Make an appropriate logbook entry to show compliance with this Special Service Instruction.

Weight and Balance Data:

POUNDS

INCHES AFT

MOMENT/

QTY

PART NO.

NOMENCLATURE

WEIGHT

OF DATUM

1000

70070-20577-011

Lwr. Aft

Negligible

409.4

0.0

Weight and Balance: Change resulting from these instructions are as follows:

Change in basic weight: Negligible

Moment arm:

409.4

Change in basic moment/1000:

0.0

Manpower (Estimated)

No. of Personel

No. of Hours

Man-hours

Helicopter Structural Mechanic

240.0

*480.0

*Does not include time required to prepare helicopter or return it to flight status.

E-123

DMWR 1-1520-237

Material Information:

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Mod. Kit, Lower Aft Transition,

70070-20577-011

(1)

consisting of:

Mod. Kit, Lower Aft Trans,

70070-20577-012

consisting of:

Stringer 22

70212-03002-103

Stringer 22

70212-03002-104

Stringer 22

70212-03002-105

Stringer 22

70212-03002-106

Stringer 22

70212-03002-107

Stringer 22

70212-03002-108

Stringer 17

70212-03002-109

Stringer 17

70212-03002-110

Stringer 23

70212-03002-111

Stringer

70212-03002-113

Stringer

70212-03002-114

Stringer 20

70212-03002-115

Stringer 20

70212-03002-116

Stringer 19

70212-03002-117

Stringer 19

70212-03002-118

Stringer

70212-03002-125

Stringer

70212-03002-126

Stringer

70212-03002-123

Stringer

70212-03002-124

Strap

70213-02501-126

Shear Angle

70211-03002-101

Skin

70213-03002-107

Skin

70213-03002-108

Doubler

70213-03002-113

Skin

70213-03002-116

Skin

70213-03002-117

Skin

70213-03002-118

Skin

70070-20577-103

Doubler

70213-03004-101

Doubler

70203-03003-101

Bracket Angle

SS1083-147

Bracket Angle

SS1083-192

Bracket Angle

SS1083-237

E-124

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Mod. Kit,

70070-20577-013

consisting of:

Beam Assy

70070-20577-041

Beam Assy

70070-20577-042

Intercostal

70211-03003-101

Intercostal

70211-03003-102

Intercostal

70211-03003-103

Intercostal

70211-03003-104

Angle

70211-03003-114

Angle

70211-03003-115

Gusset

70211-03003-116

Gusset

70211-03003-117

Gusset

70211-03003-118

Intercostal

70211-03004-101

Intercostal

70211-03004-102

Stiffener

70211-03004-103

Stiffener

70211-03003-104

Intercostal

70211-03004-105

Intercostal

70211-03004-106

Stiffener

70211-03004-107

Stiffener

70211-03004-108

Angle

70211-03004-117

Angle

70211-03004-118

Angle

70211-03004-119

Angle

70211-03004-120

Angle

70211-03004-121

Angle

70211-03004-122

Angle

70211-03004-126

Angle

70211-03004-127

Intercostal

70211-03005-101

Intercostal

70211-03005-102

Intercostal

70211-03005-103

Intercostal

70211-03005-104

Angle

70211-03005-115

Angle

70211-03005-116

Angle

70211-03005-117

Angle

70211-03005-118

Angle

70211-03005-120

Angle

70211-03005-121

Frame

70211-03006-101

Frame

70211-03006-102

Frame

70211-03006-103

Frame

70211-03006-104

Gusset

70211-03006-114

Angle

70211-03006-115

Angle

70211-03006-116

Shear Angle

70211-03007-185

E-125

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Beam Assy

70212-03003-041

Beam Assy

70212-03003-042

Beam Assy

70212-03003-544

Beam Assy

70212-03003-548

Beam Assy

70212-03003-041

Beam Assy

70212-03003-042

Beam Assy

70212-03003-554

Beam Assy

70212-03003-555

Angle Cap

70212-03003-115

Angle Cap

70212-03003-116

Stringer BL10

70212-03003-119

Stringer BL10

70212-03003-120

&Ref

Angle Splice

70212-03003-131

&Ref

Angle Splice

70212-03003-132

&Ref

Angle Splice

70212-03003-141

&Ref

Angle Splice

70212-03003-142

Mod. Kit,

70070-20577-014

consisting of:

Bolt

AN173-14A

Bolt

AN173-15A

Pin Collar Assy

HL20PB86-6-10

Pin Collar Assy

HL20PB86-6-8

Pin Collar Assy

HL20PB86-6-9

Collar

HL86TW-6

Rivet

MS20426AD3-2

Rivet

MS20426AD3-4

Rivet

MS20426AD5-2

Rivet

MS20470AD4-2

1000

Rivet

MS20470AD5-2

1385

Rivet

MS20470AD5-3

400

Rivet

MS20470AD5-4

125

Rivet

MS20470AD5-5

Rivet

MS20470AD6-2

380

Rivet

MS20470AD6-3

Rivet

MS20470AD6-4

Rivet

MS20470AD6-5

Nut

MS21044N3

Nutplate

MS21059-3

Nutplate

MS21075-3

170

Collar

NAS1080C06

Rivet

NAS1097AD4-3

140

Rivet

NAS1097AD5-4

Washer Flat

NAS1149F0332P

Pin, Swg Lkg

NAS1436-03

Pin, Swg Lkg

NAS1446-03

Pin, Swg Lkg

NAS1446-04

Pin, Swg Lkg

NAS1446-05

E-126

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Pin, Swg Lkg

NAS1465-04

Pin, Swg Lkg

NAS1526-05

Pin, Swg Lkg

NAS1526-06

Pin, Swg Lkg

NAS1526-07

Rivet

RA097AD4-2

Rivet

RA097AD6-3

Mod. Kit,

70070-20577-015

consisting of:

Foam Liner Kit,

70219-03011A012

made up of:

Foam Liner

70219-03011-123

Foam Liner

70219-03011-124

Foam Liner

70219-03011-125

Foam Liner

70219-03011-126

Foam Liner

70219-03011-127

Foam Liner

70219-03011-128

Foam Liner

70219-03011-129

Foam Liner

70219-03011-130

Foam Liner

70219-03011-131

Foam Liner

70219-03011-132

Foam Liner

70219-03011-133

Foam Liner

70219-03011-134

Foam Liner

70219-03011-135

Foam Liner

70219-03011-136

Foam Liner

70219-03011-137

Foam Liner

70219-03011-138

Foam Liner

70219-03011-139

Foam Liner

70219-03011-140

Foam Liner

70219-03011-141

Foam Liner

70219-03011-142

Foam Liner

70219-03011-143

Foam Liner

70219-03011-144

Mod. Kit,

70070-20577-016

consisting of:

Doubler

70217-03001-111

Rivet

MS20470AD5-9

Rivet

NAS1097AD3-9

Rivet

NAS1097AD5-9

Receptacle

212-12

Mod. Kit,

70070-20577-017

consisting of:

Rivet

MS20470AD3-9

E-127

DMWR 1-1520-237

Qty

Nomenclature

Part Number

Source

Rivet

MS20470AD5-9

Nutplate

MS21075-3

Screw

MS27039-1-10

Rivet

NAS1097AD4-9

Rivet, Blind

NAS1739B4-2

Rivet, Blind

NAS1739B5-2

Rivet, Blind

NAS1739B5-3

$ Beam assemblies (70212-03003-544, 70212-03003-548, 70212-03003-554, and 70212-03003-555) are supplied

in place of (70212-03003-044, 70212-03003-048, 70212-03003-054, and 70212-03003-055).

& Angle splices (70212-03003-131, 70212-03003-132, 70212-03003-141, and 70212-03003-142) are not used.

They are preassembled onto the above mentioned beam assemblies.

Consumable Material:

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

Qty

Nomenclature

Part Number

Source

8 oz.

Sealant

AMS 3265, Class A or C or

(1)

equivalent

8 oz.

Corrosion Preventive Compound

Dinotrol Av30 or Av15 or

(1)

equivalent

8 oz.

Primer, Epoxy

MIL-P-85582 or equivalent

(1)

8 oz.

Urethane

MIL-C-85285 or equivalent

(1)

8 oz.

Adhesive

444R or equivalent

(1)

Support Equipment:

Qty

Nomenclature

Part Number

Source

Locally designed and

N/A

(2)

manufactured fuselage supports

Source

(1)

Available through normal supply channels.

(2)

Locally fabricated

E-128

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO.

PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-11-

70070-20577-011

LOWER AFT TRANSITION MODIFICATION KIT

REF

-1

70070-20577-016

M/K DOOR INSTL

-2

MS20470AD5-9

. RIVET

-3

NAS1097AD3-9

. RIVET

-4

212-12

. RECEPTACLE, (71286)

-5

NAS1097AD5-9

. RIVET

-6

70217-03001-111

. DOUBLER

-7

70070-20577-017

M/K FUEL DUMP

-8

MS27039-1-10

. SCREW

-9

NAS1739B5-3

. BLIND RIVET

-10

NAS1739B4-2

. BLIND RIVET

NAS1097AD4-9

. RIVET

NAS1739B5-2

. BLIND RIVET

-11

MS20470AD5-9

. RIVET

-12

MS20470AD3-9

. RIVET

-13

MS21075-3

. NUTPLATE

-14

70070-20577-018

M/K FUEL VENT

-15

NAS1738B5-3

. BLIND RIVET

-16

70070-20577-014

M/K HARDWARE

-17

NAS1097AD5-4

RIVET

140

-18

MS20470AD5-2

RIVET

1000

-19

MS20470AD5-3

RIVET

1385

-20

MS20470AD5-4

RIVET

400

-21

MS20470AD6-3

RIVET

380

-22

MS20470AD6-5

RIVET

-23

MS20470AD5-5

RIVET

125

-24

NAS1446-04

SWAGE LOCKING PIN

-25

NAS1446-05

SWAGE LOCKING PIN

-26

NAS1080C06

COLLAR

170

-27

MS20470AD6-4

RIVET

-28

MS20426AD3-4

RIVET

-29

MS21059-3

NUTPLATE

-30

RA097AD6-3

RIVET

-31

NAS1436-03

SWAGE LOCKING PIN

-32

NAS1446-03

SWAGE LOCKING PIN

-33

AN173-14A

BOLT

-34

AN173-15A

BOLT

-35

NAS1149F0332P

FLAT WASHER

-36

MS21044N3

NUT

-37

NAS1097AD4-3

RIVET

-38

MS20470AD6-2

RIVET

-39

MS20426AD5-2

RIVET

-40

NAS1526-05

SWAGE LOCKING PIN

-41

NAS1526-06

SWAGE LOCKING PIN

-42

NAS1526-07

SWAGE LOCKING PIN

-43

HL20PB86-6-8

PIN COLLAR ASSY, (73197)

-44

HL20PB-6-8

. HI-LOK PIN, (73197)

-45

HL86-6

. COLLAR, (73197) (Superseded by HL1087A-

HL1087A-6

. COLLAR, (73197)

-46

HL20PB86-6-9

PIN COLLAR ASSY, (73197)

-47

HL20PB-6-9

. HI-LOK PIN, (73197)

-48

HL86-6

. COLLAR, (73197) (Superseded by HL1087A-

HL1087A-6

. COLLAR, (73197)

-49

HL20PB86-6-10

PIN COLLAR ASSY, (73197)

-50

HL20PB-6-10

. HI-LOK PIN, (73197)

-51

HL86-6

. COLLAR, (73197) (Superseded by HL1087A-

HL1087A-6

. COLLAR, (73197)

-52

HL86TW-6

COLLAR, (73197)

E-137

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

-53

RA097AD4-2

. RIVET

-54

MS20426AD3-2

. RIVET

-55

MS20470AD4-2

. RIVET

-56

MS21075-3

. NUTPLATE

-57

NAS1465-04

. SWAGE LOCKING PIN

-58

70070-20577-012

M/K PLATE ASSY

-59

70213-02501-126

. STRAP

-60

70213-03002-113

. DOUBLER

-61

70213-03002-117

. SKIN, LH

70213-03002-116

. SKIN, RH

-62

70213-03002-118

. SKIN

-63

70203-03003-101

. DOUBLER

-64

70213-03002-107

. SKIN,LH

70213-03002-108

. SKIN, RH

-65

70070-20577-103

. SKIN

-66

70212-03002-117

. STRINGER 19, LH

70212-03002-118

. STRINGER 19, RH

-67

70212-03002-113

. STRINGER, LH

70212-03002-114

. STRINGER, RH

-68

70212-03002-103

. STRINGER 22, LH

70212-03002-104

. STRINGER 22, RH

-69

70212-03002-111

. STRINGER 23

-70

70212-03002-105

. STRINGER 22, LH

70212-03002-106

. STRINGER 22, RH

-71

SS1083-147

. BRACKET ANGLE

-72

SS1083-192

. BRACKET ANGLE

-73

SS1083-237

. BRACKET ANGLE

-74

70213-03004-101

. DOUBLER

-75

70212-03002-109

. STRINGER 17, LH

70212-03002-110

. STRINGER 17, RH

-76

70212-03002-125

. STRINGER, LH

70212-03002-126

. STRINGER, RH

-77

70212-03002-115

. STRINGER 20, LH

70212-03002-116

. STRINGER 20, RH

-78

70212-03002-107

. STRINGER 22, LH

70212-03002-108

. STRINGER 22, RH

-79

70212-03002-124

. STRINGER

-80

70212-03002-123

. STRINGER

-81

70211-03002-101

. SHEAR ANGLE

-82

70070-20577-013

M/K FRAME INSTL

-83

70212-03003-131

. ANGLE SPLICE

70212-03003-132

. ANGLE SPLICE

-84

70212-03003-044

. BEAM ASSY

70212-03003-054

. BEAM ASSY

-85

MS20470AD6

. . RIVET, (Used on 70212-03003-044)

A/R

-86

NAS1525-02

. . SWAGE LOCKING PIN, (Used on 70212-

03003-054)

-87

NAS1080D05

. . COLLAR, (Used on 70212-03003-054)

-88

70212-03003-160

. . DOUBLER, (Used on 70212-03003-054)

-89

70212-03003-146

. . STIFFENER

-90

70212-03003-110

. . TEE CAP, (Used on 70212-03003-044)

70212-03003-109

. . TEE CAP, (Used on 70212-03003-054)

-91

70212-03003-102

. . WEB, (Used on 70212-03003-044)

70212-03003-159

. . WEB, (Used on 70212-03003-054)

-92

70212-03003-041

. BEAM ASSY, LH

70212-03003-042

. BEAM ASSY

-93

MS20470AD5

. . RIVET

A/R

-94

MS20470AD6

. . RIVET

A/R

-95

NAS1526-02

. . SWAGE LOCKING PIN

-96

NAS1080D06

. . COLLAR

-97

70212-03003-123

. . STIFFENER, (Used on 70212-03003-041)

E-138

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

3 4 5 6 7

DESCRIPTION

ASSY

CODE

70212-03003-124

. STIFFENER, (Used on 70212-03003-042)

-98

70212-03003-125

. STIFFENER, (Used on 70212-03003-041)

70212-03003-126

. STIFFENER, (Used on 70212-03003-042)

-99

70212-03003-127

. STIFFENER

-100

70212-03003-128

. STIFFENER

-101

70212-03003-147

. STIFFENER

-102

70212-03003-129

. STIFFENER, (Used on 70212-03003-041)

70212-03003-130

. STIFFENER, (Used on 70212-03003-042)

-103

70212-03003-148

. STIFFENER

-104

70212-03003-133

. CAP ANGLE

70212-03003-134

. CAP ANGLE, (Used on 70212-03003-042)

-105

70212-03003-111

. TEE CAP, (Used on 70212-03003-041)

70212-03003-112

. TEE CAP, (Used on 70212-03003-042)

-106

70212-03003-103

. WEB. (Used on 70212-03003-041)

70212-03003-104

. WEB, (Used on 70212-03003-042)

-107

70212-03003-141

ANGLE SPLICE

70212-03003-142

ANGLE SPLICE

-108

70212-03003-115

CAP ANGLE

70212-03003-116

CAP ANGLE

-109

70212-03003-048

BEAM ASSY

70212-03003-055

BEAM ASSY

-110

MS20470AD6

. RIVET

A/R

-111

MS20470AD5

. RIVET, (Used on 70212-03003-055)

A/R

-112

70212-03003-162

. DOUBLER, (Used on 70212-03003-055)

-113

70212-03003-145

. STIFFENER

-114

70212-03003-114

. TEE CAP, (Used on 70212-03003-048)

70212-03003-113

. TEE CAP, (Used on 70212-03003-055)

-115

70212-03003-161

. WEB, (Used on 70212-03003-055)

70212-03003-106

. WEB, (Used on 70212-03003-048)

-116

70070-20577-041

BEAM ASSY, LH

70070-20577-042

BEAM ASSY, RH

-117

MS20470AD5

. RIVET

A/R

-118

MS20470AD6

. RIVET

A/R

-119

NAS1526-02

. SWAGE LOCKING PIN

-120

NAS1080D06

. COLLAR

-121

70212-03003-137

. STIFFENER, (Used on 70070-20577-041)

70212-03003-138

. STIFFENER, (Used on 70070-20577-042)

-122

70212-03003-139

. STIFFENER, (Used on 70070-20577-041)

70212-03003-140

. STIFFENER, (Used on 70070-20577-042)

-123

70212-03003-149

. STIFFENER

-124

70212-03003-121

. STIFFENER. (Used on 70070-20577-041)

70212-03003-122

. STIFFENER, (Used on 70070-20577-042)

-125

70212-03003-135

. STIFFENER

70212-03003-136

. STIFFENER, (Used on 70070-20577-042)

-126

70212-03003-143

. CAP ANGLE, (Used on 70070-20577-041)

70212-03003-144

. CAP ANGLE, (Used on 70070-20577-042)

-127

70070-20577-101

. CAP ANGLE, (Used on 70070-20577-041)

70070-20577-102

. CAP ANGLE, (Used on 70070-20577-042)

-128

70212-03003-150

. WEB, (Used on 70070-20577-041)

70212-03003-151

. WEB, (Used on 70070-20577-042)

-129

70212-03003-119

STRINGER BLIO

70212-03003-120

STRINGER BLIO

-130

70211-03003-101

INTERCOSTAL

-131

70211-03003-102

INTERCOSTAL

-132

70211-03003-103

INTERCOSTAL

-133

70211-03003-104

INTERCOSTAL

-134

70211-03003-114

ANGLE

-135

70211-03003-115

ANGLE

-136

70211-03003-116

GUSSET

-137

70211-03003-117

GUSSET

-138

70211-03003-118

GUSSET

E-139

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO. PART NUMBER

3 4 5 6 7

DESCRIPTION

ASSY

CODE

-139

70211-03004-101

INTERCOSTAL

-140

70211-03004-102

INTERCOSTAL

-141

70211-03004-103

STIFFENER

-142

70211-03004-104

STIFFENER

-143

70211-03004-105

INTERCOSTAL

-144

70211-03004-106

INTERCOSTAL

-145

70211-03004-107

STIFFENER

-146

70211-03004-108

STIFFENER

-147

70211-03004-117

ANGLE

-148

70211-03004-118

ANGLE

-149

70211-03004-119

ANGLE

-150

70211-03004-120

ANGLE

-151

70211-03004-121

ANGLE

-152

70211-03004-122

ANGLE

-153

70211-03004-126

ANGLE

-154

70211-03004-127

ANGLE

-155

70211-03005-101

INTERCOSTAL

-156

70211-03005-102

INTERCOSTAL

-157

70211-03005-103

INTERCOSTAL

-158

70211-03005-104

INTERCOSTAL

-159

70211-03005-115

ANGLE

-160

70211-03005-116

ANGLE

-161

70211-03005-117

ANGLE

-162

70211-03005-118

ANGLE

-163

70211-03005-120

ANGLE

-164

70211-03005-121

ANGLE

-165

70211-03006-101

FRAME

-166

70211-03006-102

FRAME

-167

70211-03006-103

FRAME

-168

70211-03006-104

FRAME

-169

70211-03006-114

GUSSET

-170

70211-03006-115

ANGLE

-171

70211-03006-116

ANGLE

-172

70211-03007-185

SHEAR ANGLE

E-140

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO.

PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-12-

70070-20577-015

FOAM LINER MODIFICATION KIT

REF

-1

70219-03011-137

. FOAM LINER

-2

70219-03011-139

. FOAM LINER

-3

70219-03011-138

. FOAM LINER

-4

70219-03011-140

. FOAM LINER

-5

70219-03011-136

. FOAM LINER

-6

70219-03011-141

. FOAM LINER

-7

70219-03011-142

. FOAM LINER

-8

70219-03011-133

. FOAM LINER

-9

70219-03011-143

. FOAM LINER

-10

70219-03011-132

. FOAM LINER

-11

70219-03011-129

. FOAM LINER

-12

70219-03011-130

. FOAM LINER

-13

70219-03011-131

. FOAM LINER

-14

70219-03011-128

. FOAM LINER

-15

70219-03011-127

. FOAM LINER

-16

70219-03011-126

. FOAM LINER

-17

70219-03011-125

. FOAM LINER

-18

70219-03011-124

. FOAM LINER

-19

70219-03011-123

. FOAM LINER

-20

70219-03011-135

. FOAM LINER

-21

70219-03011-134

. FOAM LINER

-22

70219-03011-144

. FOAM LINER

E-142

DMWR 1-1520-237

E-13. ENCLOSURE MODIFICATION KIT (50-21).

Subject: Vapor Barrier Support Structure; Replacement of, dated 31 March 2003

Purpose: Provide instructions for the replacement of structure supporting vapor barriers above fuel cells.

Model:

UH-60A

Description: The structure which supports vapor barrier between stations 413.00 and 443.50, right and left buttline

10.00 is replaced.

Drawings required for modification:

70070-20578, 70219-03002, 70400-03611, 70551-03140, 70551-03101, 70551-03102

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

(b) TM 1-1520-237-23, Technical Manual, Aviation Unit And Intermediate Maintenance For Army

Models UH-60A, UH-60L, EH-60A and UH-60Q Helicopters, Chapter 10, Fuel Systems

Instructions:

NOTE

• A complete review of this SSI is recommended before incorporating the rework of vapor barrier.

• Before beginning this modification procedure, use the material information list to inventory the modification

kit. Make sure all parts are present and in serviceable condition.

• Where drawing numbers are not listed within individual step(s), drawing(s) listed in preceding step(s) are

the controlling authority.

• The electrical, sheet metal, and structural modifications in this SSI shall be done by personnel experienced

in reading modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard

repairs, corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming

parts, paint touch up, routing, clamping, and safety practices may not be called out herein. However, these

steps and all other required routine tasks shall be done.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions, and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

(3)

Disconnect connectors and pull back wiring as required for rework of vapor barriers.

(4)

Remove fuel lines as required for rework of vapor barriers per reference (b).

E-143

DMWR 1-1520-237

Rework of enclosure installation (70219-03002-012) as follows:

(1)

Modification of enclosure installation (70219-03002-012) left side as follows:

CAUTION

TO AVOID DAMAGING COMPONENTS, USE EXTREME CARE WHEN DRILLING INTO AIRFRAME.

TEMPORARILY MOVE ANY TUBE ASSEMBLIES OR WIRING HARNESSES OUT OF REWORK AREA.

(a)

Remove bracket installation (70400-03611-012 or -016) as required to gain access to intercostal

(70219-03002-111, -142, -143, or -151) keep parts as required for reinstallation (Dwg 70400-03611, Sheet 1, Zones

10-B, 12-B, 13-E, 14-D, 16-B, 16-C, 16-F, 17-A, 17-C, and 17-H; Dwg 70070-20578, Sheet 1, Notes 13 and 14).

(b)

Remove angle (70219-03002-133 or -153) as required to remove intercostal (70219-03002-111, -142,

-143, or -151) keep parts as required for reinstallation (Dwg 70219-03002, Sheet 2, Zones 8-G and 16-B).

(c)

Remove left side intercostal (70219-03002-111, -142, -143, or -151) (Dwg 70219-03002, Sheet 1,

Zones 13-M and 14-M; Dwg 70070-20578, Sheet 1, Notes 7, 8, 9, and 10).

(d)

Install four brackets (MS3341-2-9) on new intercostal (70070-20578-101) using hardware shown and

old intercostal (70219-03002-111, -142, -143, or -151) as a template (Dwg 70551-03140, Sheet 3, View AC-AC,

Zones 7-H, 8-H, and 9-H; Dwg 70070-20578, Sheet 1, Note 5).

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

(e)

Install grommet (MS21266-1N) on new intercostal (70070-20578-101) using adhesive (PLIOBOND NO.

20, or equivalent) (Dwg 70219-03002, Sheet 1, Zone 10-L, Note 17).

(f)

Install nameplates (SS9014J308 and SS9014J323) (Dwg 70070-20578, Sheet 1, Notes 19 and 20, Sheet

2, Notes 21 and 22; Dwg 70551-03101, Sheet 2, Zones 11-C and 11-G; Dwg 70551-03102, Sheet 2, Zones 4-D, 4-H

and 7-D).

(g)

Install intercostal (70070-20578-101) using hardware shown (Dwg 70219-03002, Sheet 1, Zones 13-M

and 14-M; Dwg 70070-20578, Sheet 1, Notes 4 and 5).

(h)

Reinstall angle (70219-03002-133 or -153) using hardware shown (Dwg 70319-03002, Sheet 2, Zones

8-G and 16-B).

E-144

DMWR 1-1520-237

(i)

Reinstall bracket installation (70400-03611-012 or -016) using hardware shown (Dwg 70400-03611,

Sheet 1, Zones 10-B, 12-B, 13-E, 14-D, 16-B, 16-C,16-F, 17-A, 17-C, 17-H, and Note 13; Dwg 70070-20578, Sheet

1, Notes 15 and 16).

(2)

Modification of enclosure installation (70219-03002-012) right side as follows:

CAUTION

TO AVOID DAMAGING COMPONENTS, USE EXTREME CARE WHEN DRILLING INTO AIRFRAME.

TEMPORARILY MOVE ANY TUBE ASSEMBLIES OR WIRING HARNESSES OUT OF REWORK AREA.

(a)

Remove bracket installation (70400-03611-011 or -015) as required to gain access to intercostal

(70219-03002-112, -144, or -150) keep parts as required for reinstallation (Dwg 70400-03611, Sheet 1, Zones 10-B,

12-B, 13-E, 14-D, 16-B, 16-C, 16-F, 17-A, 17-C, and 17-H; Dwg 70070-20578, Sheet 1, Notes 13 and 14).

(b)

Remove angle (70219-03002-134 or -152) as required to remove intercostal (70219-03002-112, -144,

or -150) keep parts as required for reinstallation (Dwg 70319-03002, Sheet 2, Zones 4-G and 16-G).

(c)

Remove right side intercostal (70219-03002-112, -144, or -150) (Dwg 70219-03002, Sheet 1, Zones

13-M and 14-M; Dwg 70070-20578, Sheet 1, Notes 7, 8, 9, and 10).

(d)

Install three brackets (MS3341-2-9) on new intercostal (70070-20578-102) using hardware shown and

old intercostal (70219-03002-112, -144, or -150) as a template (Dwg 70551-03140, Sheet 3, View AA-AA, Zone 7-B

and Dwg 70070-20578, Sheet 1, Note 6).

(e)

Install cover, protector (MS3181-10CA) to new intercostal (70070-20578-102) using hardware shown

(Dwg 70551-03102, Sheet 2, Zones 3-C and 7-C).

(f)

Install nameplates (SS9014J347, SS9014J307, and SS9014J322) (Dwg 70070-20578, Sheet 1, Notes

19 and 20, Sheet 2, Notes 21 and 22; Dwg 70551-03101, Sheet 2, Zones 11-C and 11-G; Dwg 70551-03102, Sheet

2, Zones 4-D, 4-H and 7-D).

WARNING

OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES.

WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF A

CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN CONSUMABLE AND ITS VAPORS ARE

KEPT AWAY FROM HEAT, SPARK, AND FLAME. MAKE CERTAIN EQUIPMENT IS PROPERLY

GROUNDED AND FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR AD-

DITIONAL INFORMATION ON TOXICITY, FLASHPOINT, AND FLAMMABILITY OF CHEMICALS,

CONSULT YOUR MEDICAL PEOPLE, OR MANUFACTURER OF THE CONSUMABLE.

(g)

Install grommet (MS21266-1N) on new intercostal (70070-20578-102) using adhesive (PLIOBOND

NO.20 or equivalent) (Dwg 70219-03002, Sheet 1, Zone 10-L, Note 17).

(h)

Install intercostal (70070-20578-102) using hardware shown (Dwg 70219-03002, Sheet 1, Zones 13-M

and 14-M; Dwg 70070-20578, Sheet 1, Notes 4 and 6).

E-145

DMWR 1-1520-237

(i)

Reinstall angle (70219-03002-134 or -152) using hardware shown (Dwg 70219-03002, Sheet 2, Zones

8-G and 16-B).

(j)

Reinstall bracket installation (70400-03611-011 or -015) using hardware shown (Dwg 70400-03611,

Sheet 1, Zones 10-B, 12-B, 13-E, 14-D, 16-B, 16-C,16-F, 17-A, 17-C, 17-H, and Note 13; Dwg 70070-20578, Sheet

1, Notes 15 and 16).

Reinstallation of removed equipment:

(1)

Reinstall removed wiring and reconnect connectors as required.

(2)

Reinstall removed fuel lines as required per reference (b).

(3)

Install removed equipment per reference (a).

Record of Compliance:

(1)

Make an appropriate logbook entry to show compliance with this Special Service Instruction.

Weight and Balance Data:

POUNDS

INCHES AFT

MOMENT/

QTY

PART NO.

NOMENCLATURE

WEIGHT

OF DATUM

1000

70070-20578-011

Mod. Kit

+0.2

432.0

0.086

Weight and Balance: Change resulting from these instructions are as follows:

Change in basic weight:

+0.2 pounds

Moment arm:

432.0 in.

Change in basic moment/1000:

0.086

Manpower (Estimated)

No. of Personel

No. of Hours

Man-hours

Sheet Metal Mechanic

24.0

*24.0

Helicopter Electrican

8.0

*8.0

Fuel Mechanic

2.0

*2.0

*Does not include time required to prepare helicopter or return it to flight status.

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DMWR 1-1520-237

Material Information:

Modification Kit Required:

Qty

Nomenclature

Part Number

Source

Modification Kit, Enclosure,

70070-20578-011

(1)

consisting of:

Pin, Hi Lok

HL20PB-6-11

Pin, Hi Lok

HL20PB-6-7

Pin, Hi Lok

HL20PB-6-9

Collar

HL75-6AW

Rivet

MS20426AD5-4

Rivet

MS20470AD3-3

116

Rivet

MS20470AD4-5

Rivet

MS20470AD4-6

Rivet

MS20470AD5-4

Rivet

MS20470AD5-5

Rivet

MS20604AD3W4

Grommet

MS21266-1N

Bracket

MS3341-2-9

Cover, Prot

MS3181-10CA

Rivet

NAS1097AD5-5

Rivet

NAS1097AD5-6

Radius Block

SS1058-1-30-12

Intercostal

70070-20578-101

Intercostal

70070-20578-102

Nameplate

SS9014J347

Nameplate

SS9014J323

Nameplate

SS9019J322

Nameplate

SS9014J308

Nameplate

SS9014J307

E-147

DMWR 1-1520-237

QTY

USABLE

FIGURE &

PER

INDEX NO.

PART NUMBER

1 2 3 4 5 6 7

DESCRIPTION

ASSY

CODE

E-13-

70070-20578-011

ENCLOSURE MODIFICATION KIT

REF

-1

SS9014J307

. NAMEPLATE, LH

SS9014J308

. NAMEPLATE, RH

-2

SS9014J322

. NAMEPLATE, LH

SS9014J323

. NAMEPLATE, RH

-3

SS9014J347

. NAMEPLATE

-4

MS3181-10CA

. PROTECTIVE COVER

-5

MS21266-1N

. GROMMET

-6

MS20470AD3-3

. RIVET

-7

MS20470AD4-5

. RIVET

116

-8

MS20470AD4-6

. RIVET

-9

NAS1097AD5-5

. RIVET

-10

NAS1097AD5-6

. RIVET

-11

MS20604AD3W4

. RIVET

-12

MS3341-2-9

. BRACKET

-13

MS20426AD5-4

. RIVET

-14

MS20470AD5-4

. RIVET

-15

MS20470AD5-5

. RIVET

-16

HL20PB-6-7

. HI-LOK PIN, (73197)

-17

HL75-6AW

. COLLAR, (73197)

-18

HL20PB-6-11

. HI-LOK PIN, (73197)

-19

HL20PB-6-9

. HI-LOK PIN, (73197)

-20

SS1058-1-30-12

. RADIUS BLOCK

-21

70070-20578-101

. INTERCOSTAL, LH

70070-20578-102

. INTERCOSTAL, RH

E-151

DMWR 1-1520-237

E-14. SUPPORT SHAFT MODIFICATION KIT (50-9).

Subject: Drive Shaft Supports; Modification of, dated 31 March 2003

Purpose: Provide instructions to remove and install new drive shaft supports along tail cone section.

Model:

UH-60A

Description: The following is a brief overview of the work required to rework drive shaft supports at station 531.43 and

station 591.88. Tail drive shaft supports are removed and new supports and doublers are installed.

Drawings required for modification:

70070-20266

References: (a) Special Service Instructions (SSI) No. 50-31, Installation of 9A to A9 Recapitalization Program, dated

March 31, 2003

(b) SSI No. 50-20, Tail Rotor Drive Shaft Support Brackets; Modification of, dated March 31, 2003

UH-60L, EH-60A, UH-60Q and HH-60L Helicopters

Instructions:

NOTE

• A complete review of this SSI is recommended before reworking station 531.43 and station 591.88.

• Before beginning this modification procedure, use the material information list to inventory the kit. Make

sure all parts are present and in serviceable condition.

• Where drawing numbers are not listed within individual steps, drawing(s) listed in preceding step(s) are

the controlling authority.

• The sheet metal and structural modifications in this SSI shall be done by personnel experienced in reading

modification drawings. Routine steps such as cleaning, layout and drilling, deburring, standard repairs,

corrosion control, clean up after rework, chemical coating for aluminum after cutting/trimming parts, paint

touch up, and safety practices may not be called out herein. However, thesesteps and all other required

routine tasks shall be done.

• When installing fasteners refer to drawing sheet and zones for applicable fasteners.

• Slight variations to the instructions contained herein are allowed, as long as the intent of the modification

is accomplished.

• This modification is to be done concurrently with reference (b).

Preparation for modification and removal of equipment:

(1)

Confirm that all warnings, cautions and notes are complied with per reference (a).

(2)

Perform preparation for modification per reference (a).

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HELICOPTERS NSN 1520-01-035-0266, NSN 1520-01-082-0686, NSN 1520-01-298-4532. REPAIR STANDARDS (2004) - page 2