F16C/D. FLIGHT MANUAL (2002) - page 48

T.O. GR1F16CJ1CL2

D20.2

OTHER CONSIDERATIONS: 

1

W

 

F

With trapped CFT fuel, the totalizer does not indicate

usable fuel. Until fuel transfer can be established, fuselage fuel

is the only available usable fuel.

F

If a trapped CFT fuel condition is not discovered until either

reservoir tank is less than full or a fuel low light is on, sufficient

fuel transfer from the CFT may not occur even if the malfunction

is corrected. Consider fuselage fuel to be the only usable fuel.

2

 If INT WING & CFT quantity remains greater than 700 lb and

fuselage fuel is decreasing and an external tank is empty, fuel

is trapped in the CFT.

3

 Open or close AR door at or below 400 kts/0.85 mach.

4

 Opening the AR door for 1 min vents pressure that may

prevent transfer of CFT fuel.

5

 Opening the AR door depressurizes external tanks and

removes the cause of trapped CFT fuel. It may take from 1 min

(centerline tank) to 4 min (centerline tank and two 600gallon

fuel tanks) for external tank air pressure to decrease to zero.

With the air source removed, CFT fuel can be transferred. The

wing turbine pump capability limits the transfer rate of CFT fuel

from the internal wings to the fuselage.

6

 The time required to observe fuel transfer can vary from

1025 min after AR door is opened. Because CFT fuel is

combined with internal wing fuel, the INT WING & CFT quantity

will not immediately decrease. As fuel transfers, the INT WING

& CFT quantity indication may be very erratic with jumps of 200

lb. CFT fuel transfer is best determined by observing a reduction

in fuselage fuel usage or an increase in fuselage fuel.

7

 If no fuel transfer is apparent after 10 min with AR door

open, consider descending. A descent of 1/3 of the altitude

available may speed up the process by increasing air pressure

behind the CFT fuel.

8

 Closing the AR door repressurizes the external tank(s).

Repessurization may be slow because of the failed external

tank and may not be sufficient to obtain normal external tank

transfer rate. With EXT TANK TRANS sw in CFT FIRST/NO FILL,

the CFT's will remain empty.

9

 Jettison of the failed empty external tank will immediately

remove the source of air trapping the CFT fuel. Jettison does not

improve the fuel transfer rate. However, once the failed tank is

removed, the AR door can be closed so that the fuel system

pressure will increase and improve the CFT transfer rate. Fuel

in any remaining external tank(s) may also transfer to fill the

internal wing.

D20.2

8 5/8 " Page

T.O. GR1F16CJ1CL2

D21

TRAPPED CFT FUEL

1

W

1. Fuel flow - Minimize.

2. EXT FUEL TRANS sw - CFT FIRST/NO FILL.

3. FUEL QTY SEL knob - Check all positions. 

2

If FWD FUEL LOW and/or AFT FUEL LOW caution

light is on:

4. Stores - Retain any external tank containing

fuel; jettison any empty external tank and other

stores. Refer to JETTISON, page F27.

5. AIR REFUEL sw - OPEN for 1 min then CLOSE.

3

 

4

 

If FWD FUEL LOW and AFT FUEL LOW caution

lights are off:

4. AIR REFUEL sw - OPEN. 

3

 

5

5. Fuel quantities - Monitor. 

6

 

7

When each INT WING & CFT quantity is less than

200 LB:

6. AIR REFUEL sw - CLOSE. 

8

If fuselage fuel is not sufficient to recover the air

craft:

9

7. Jettison empty external tank(s).

8. AIR REFUEL sw - CLOSE.

END

D21

TRAPPED CFT FUEL

T.O. GR1F16CJ1CL2

D22

NOTES:

D22

LG

E

T.O. GR1F16CJ1CL2

E1

NOTES:

LG

E

T.O. GR1F16CJ1CL2

E2

Landing Gear Malfunctions

LG HANDLE WILL NOT RAISE

E5

. . . . . . . . . . . . . . . . . . . . . . . 

LG FAILS TO RETRACT

E7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

BLOWN TIRE ON TAKEOFF

E7

. . . . . . . . . . . . . . . . . . . . . . . . . . 

LANDING WITH A BLOWN TIRE

E9

. . . . . . . . . . . . . . . . . . . . . 

LG HANDLE WILL NOT LOWER

E11

. . . . . . . . . . . . . . . . . . . . . 

LG FAILS TO EXTEND

E11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

ALTERNATE LG EXTENSION

E13

. . . . . . . . . . . . . . . . . . . . . . . . 

LANDING WITH LG UNSAFE/UP

E15

. . . . . . . . . . . . . . . . . . . 

BRAKE FAILURE

GO TO F7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

NLG WOW SWITCH FAILURE

GO TO F31

. . . . . . . . . . . . . . . 

NWS FAILURE/

HARDOVER

GO TO F15

. . . . . . . . . . . . . 

ANTISKID

MALFUNCTION

GO TO F9

. . . . . . . . . . . . 

NWS

FAIL

ANTI

SKID

T.O. GR1F16CJ1CL2

E3

NOTES:

E3

7 1/2 " Page

T.O. GR1F16CJ1CL2

E4

OTHER CONSIDERATIONS:

1

 TO/LDG CONFIG light is on if left MLG WOW sw has failed.

2

W

 If LG handle does not lower, select BRAKES CHAN 2 and

position ALT FLAPS sw to EXTEND. Nozzle remains closed,

resulting in higher than normal landing thrust.

3

C

 Touchdown antiskid protection may not be available.

Landing with feet on the brake pedals may result in blown

tire(s).

E4

7 1/2 " Page

T.O. GR1F16CJ1CL2

E5

LG HANDLE WILL NOT RAISE

If conditions permit:

1. Airspeed - 300 kts max.

2. GW - Reduce prior to landing.

If LG must be raised:

1. LG handle DN LOCK REL button - Depress.

2. LG handle - UP.

1

When desired:

3. LG handle - DN. (Use DN LOCK REL button if

required.) 

2

W

After touchdown:

4. Brakes - Apply after wheels spin up.

3

C

END

E5

7 3/4

LG HANDLE WILL NOT RAISE

" Page

T.O. GR1F16CJ1CL2

E6

OTHER CONSIDERATIONS:

1

W

 If LG handle does not lower, select BRAKES CHAN 2 and

position ALT FLAPS sw to EXTEND. Nozzle remains closed,

resulting in higher than normal landing thrust.

2

C

 Do not cycle the LG handle. Damage to LG or LG doors

may result.

3

W

 Aborting takeoff at high speed with a blown tire may be

more dangerous than continuing takeoff. For heavy weight

takeoffs, an abort at high speed with a blown tire is extremely

dangerous because braking and directional control are

impaired.

4

 The decision to take off or abort depends on the speed at the

time of the failure, GW, stopping distance required, and

arresting gear availability.

5

W

 If a blown NLG tire occurred and NWS is not available,

it may not be possible to prevent departure from the runway.

A reverse castering effect may occur in which the nosewheel

moves opposite to the rudder or differential braking input.

6

C

 With a blown tire, avoid centerline lights as they may

cause wheel damage and subsequent loss of directional

control. Failure to use full aft stick with a blown NLG tire may

lead to wheel failure and directional control problems.

E6

7 3/4 " Page

T.O. GR1F16CJ1CL2

E7

LG FAILS TO RETRACT

1. Airspeed - 300 kts max.

2. LG handle - DN. (Use DN LOCK REL button if

required.) 

1

W

If LG comes down normally:

3. GW - Reduce prior to landing.

If LG does not indicate down:

2

C

4. Go to ALTERNATE LG EXTENSION, page E13.

BLOWN TIRE ON TAKEOFF 

3

W

 

4

 

5

W

 

6

C

If takeoff is not feasible:

1. Abort.

If takeoff is continued:

1. LG - Do not retract.

2. Airspeed - 300 kts max.

3. Refer to LANDING WITH A BLOWN TIRE, page

E9.

END

E7

8

LG FAILS TO RETRACT/BLOWN TIRE ON T.O.

" Page

T.O. GR1F16CJ1CL2

E8

OTHER CONSIDERATIONS:

1

C

 With a blown tire, avoid centerline lights as they may

cause wheel damage and subsequent loss of directional

control.

2

 Retain empty external fuel tanks.

3

W

 Failure to depressurize external fuel tank(s) significantly

increases the probability of tank explosion and fire if the aircraft

departs the runway.

4

 Delay placing the AIR REFUEL sw to OPEN until all external

tanks are empty.

5

 Use of antiskid minimizes skidding on good tire during

braking.

6

An approachend arrestment is recommended. Refer to

CABLE ARRESTMENT, page F11.

7

If no approachend cable is available, land on the side of

runway away from the blown tire.

8

 The NWS light does not illuminate when NWS is engaged

if the AIR REFUEL sw is in OPEN.

9

 Plan to land with approx 1500 lb of fuel on board.

10

 At 3000 lb fuel remaining, place ENG FEED knob to FWD.

When forward reservoir is empty, place ENG FEED knob to

NORM. (Emptying forward tank system takes approx 

C

 15

minutes, 

D

 9 minutes if fuel flow is 4000 pph. When forward

tank system empties, the fuel in aft tank system is

approx 

C

 2000 lb, 

D

 2400 lb.)

11

W

 Failure to depressurize external fuel tank(s) significantly

increases the probability of tank explosion and fire if the nose

gear collapses during the arrestment.

12

 An approachend cable arrestment with the nosewheel off

the runway is recommended. Refer to CABLE ARRESTMENT,

page F11.

E8

8 " Page

T.O. GR1F16CJ1CL2

E9

LANDING WITH A BLOWN TIRE

1

C

 

Landing With A Blown Main Gear Tire

Prior to landing:

1. Stores - Jettison. Refer to JETTISON, page F27.

2

2. GW - Reduce (if practical).

3. TANK INERTING sw - TANK INERTING even

if Halon is not available.

4. AIR REFUEL sw-OPEN, if external fuel

tank(s) is installed. 

3

W

 

4

5. ANTISKID sw - ANTISKID. 

5

6. HOOK sw - DN. 

6

7. Final approach AOA - 13

_

.

If a missed approachend cable arrestment occurs or

no approachend cable is available: 

7

8. NWS - Engage (if required). 

8

9. Brake - As desired on good tire.

Landing With A Blown Nose Gear Tire

Prior to landing:

1. Stores - Jettison. Refer to JETTISON, page F27.

2

2. GW - Reduce (if practical).

9

3. Fuel distribution - All fuel in aft tank system (if

practical).

10

4. TANK INERTING sw - TANK INERTING even

if Halon is not available.

5. AIR REFUEL sw-OPEN, if external fuel

tank(s) is installed. 

11

W

6. HOOK sw - DN.

12

7. Final approach AOA - 13

º

.

(Cont)

E9

8 1/4

LANDING WITH A BLOWN TIRE

" Page

T.O. GR1F16CJ1CL2

E10

OTHER CONSIDERATIONS:

13

W

 With a blown NLG tire and loss of NWS, it may not be

possible to prevent departure from the runway. A reverse

castering effect may occur in which the nosewheel moves

opposite to the rudder or differential braking input.

14

 The max allowable fuel flow with one reservoir empty is

25,000 pph.

E10

8 1/4 " Page

T.O. GR1F16CJ1CL2

E10.1

After touchdown:

8. Stick - Lower nose to approx 5

º

 pitch attitude for

arrestment.

After cable engagement:

9. Stick - Apply aft stick after nose starts down to

reduce load on the NLG.

If a missed cable engagement occurs:

10. Maintain pitch attitude and go around.

13

W

14

END

E10.1

8 1/8 " Page

T.O. GR1F16CJ1CL2

E10.2

OTHER CONSIDERATIONS: 

1

 Nozzle remains closed, resulting in higher than normal

landing thrust.

2

 After a successful alternate gear extension with the landing

gear handle still up, the LG handle warning light remains on

to indicate the position of the gear handle is not in agreement

with the actual gear position.

3

 If alternate LG extension was performed and one or more

LG indicate unsafe, refer to ALTERNATE LG EXTENSION, page

E13.

4

C

 If the LG previously failed to retract, do not cycle the LG

handle. Damage to the LG or LG doors may preclude successful

extension.

5

W

 If at anytime, an LG intermittently indicates unsafe (i.e.

WHEELS down light off and LG handle warning light on), the

overcenter lock on the LG drag brace assembly may not be

functioning properly. The LG may appear down, but the LG

may collapse during landing. Plan on using the LG unsafe/up

procedures even if the LG eventually indicates normal. Refer

to LANDING WITH LG UNSAFE/UP, this section.

6

C

 If the LG previously failed to retract, do not cycle the LG

handle. Damage to the LG or LG doors may preclude successful

extension.

7

 If the NLG WHEELS down light is off, confirmation of the NLG

position can be made by checking landing/taxi light operation.

Illumination of either light confirms that the NLG is down. With

the NLG WHEELS down light off, NWS may be inoperative

(without a NWS FAIL caution light).

8

 From the front cockpit, the top of the speedbrakes should be

slightly above a line drawn from the tip of the horizontal tail to

the top of the vertical tail root fairing.

9

C

 If RMLG WHEELS down light is off, speedbrakes may not

be limited to 43

°

.

E10.2

8 1/8 " Page

T.O. GR1F16CJ1CL2

E11

LG HANDLE WILL NOT LOWER 

If LG handle cannot be lowered normally:

1. DN LOCK REL button - Depress and lower LG

handle.

If LG handle still cannot be lowered:

2. ALT FLAPS sw - EXTEND.

3. BRAKES channel sw - CHAN 2.

4. Go to ALTERNATE LG EXTENSION, page E13.

1

 

2

LG FAILS TO EXTEND 

3

 

4

C

 

If one or more LG indicate unsafe: 

5

W

 

6

C

 

7

1. LG handle - Cycle and monitor LG handle warning

light and WHEELS down lights.

If LG handle warning light came on when the LG handle

was lowered, then went off, and tests good or if WHEELS

down lights operated normally:

2. Speedbrakes - Verify opening is less than 43

°

.

8

9

C

3. Land normally.

If LG handle warning light did not illuminate or

remained illuminated after LG handle was lowered and

if one or more WHEELS down lights did not illuminate:

4. Go to ALTERNATE LG EXTENSION, page E13.

END

E11

8 1/2

LG HANDLE WILL NOT LOWER/LG FAILS TO EXT

" Page