areas or along designated routes, shall comply with the provisions detailed in Annex 2, Chapter 3,
concerning the submission, completion, changing and closing of a flight plan.
9.2.1.2 In addition to the above, aircraft equipped with suitable two-way radio communications
shall report during the period twenty to forty minutes following the time of last contact, whatever
the purpose of such contact, merely to indicate that the flight is progressing according to plan,
such report to comprise identification of the aircraft and the words “Operations normal” or the
signal QRU.
9.2.1.3 The “Operations normal” message shall be transmitted air-ground to an appropriate air
traffic services unit (e.g., normally to the aeronautical telecommunication station serving the air
traffic services unit in charge of the FIR in which the aircraft is flying, otherwise to another aero-
nautical telecommunication station to be retransmitted as required to the air traffic services unit in
charge of the FIR).
9.2.1.4 It may be advisable, in case of a SAR operation of a substantial duration, to promulgate
by NOTAM the lateral and vertical limits of the area of SAR action, and to warn aircraft not
engaged in actual SAR operations and not controlled by air traffic control to avoid such areas
unless otherwise authorized by the appropriate ATS unit.
PHRASEOLOGIES
GENERAL
12.2.1 Most phraseologies contained in Section 12.3 of this Chapter show the text of a complete
message without call signs. They are not intended to be exhaustive, and when circumstances
differ, pilots, ATS personnel and other ground personnel will be expected to use plain language
which should be as clear and concise as possible, to the level specified in the ICAO language
proficiency requirements contained in Annex 1—Personnel Licensing (not published herein), in
order to avoid possible confusion by those persons using a language other than one of their
national languages.
12.2.2 The phraseologies are grouped according to types of air traffic service for convenience of
reference. However, users shall be familiar with, and use as necessary, phraseologies from
groups other than those referring specifically to the type of air traffic service being provided. All
phraseologies shall be used in conjunction with call signs (aircraft, ground vehicle, ATC or other)
as appropriate. In order that the phraseologies listed should be readily discernible in Section 12.3,
call signs have been omitted. Provisions for the compilation of RTF messages, call signs and pro-
cedures are contained in Annex 10, Volume II, Chapter 5.
12.2.3 Section 12.3 includes phrases for use by pilots, ATS personnel and other ground person-
nel.
12.2.4 During operations in or vertical transit through reduced vertical separation minimum
(RVSM) airspace with aircraft not approved for RVSM operations, pilots shall report non-approved
status in accordance with 12.3.1.12 c. as follows:
a. at initial call on any channel within RVSM airspace;
b. in all requests for level changes; and
12
12.2
INTERNATIONAL CIVIL AVIATION ORGANIZATION -
AIR TRAFFIC MANAGEMENT
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AIR TRAFFIC MANAGEMENT (DOC 4444)