12 / 20
Your flight plan has been filed with the call sign GOLF ALFA CHARLIE ZULU GOLF. What phraseology would ATC use to instruct you to stop using that call sign and start using your company call sign "SKYFALL ZULU GOLF"?
  • A
    ADOPT CALL SIGN SKYFALL ZULU GOLF.
  • B
    CHANGE YOUR CALL SIGN TO SKYFALL ZULU GOLF.
  • C
    ADOPT COMPANY CALL SIGN.
  • D
    ATC would only abbreviate call signs and revert to the full call sign that is provided in the flight plan.

ICAO Annex 10, Volume II
5.2.1.7.3 Radiotelephony procedures

5.2.1.7.3.1 An aircraft shall not change the type of its radiotelephony call sign during flight, except temporarily on the instruction of an air traffic control unit in the interests of safety.

ICAO Doc 4444
12.3.1.6 CHANGE OF CALL SIGN

... to instruct an aircraft to change its type of call sign: a) CHANGE YOUR CALL SIGN TO (new call sign) [UNTIL FURTHER ADVISED];
... to advise an aircraft to revert to the call sign indicated in the flight plan: b) REVERT TO FLIGHT PLAN CALL SIGN (call sign) [AT (significant point)].

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

Keyboard Shortcut Use Keyboard Shortcuts