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What is the correct way of reading back the following clearance? "G-ABCD, WHEN AIRBORNE, TURN RIGHT, LEAVE CONTROL ZONE VIA ROUTE ECHO."
  • A
    RIGHT TURN VIA ROUTE ECHO, G-ABCD.
  • B
    WHEN AIRBORNE RIGHT TURN, ROUTE ECHO, G-CD.
  • C
    AFTER TAKE-OFF TURNING RIGHT, G-ABCD.
  • D
    TURNING RIGHT, LEAVING CONTROL ZONE VIA ROUTE ECHO, G-CD.

Refer to figure.
ICAO Doc 9432
2.8.3 Issue of clearance and read-back requirements

2.8.3.6 Other clearances or instructions, including conditional clearances, shall be read back or acknowledged in a manner to clearly indicate that they have been understood and will be complied with.


Note: In the question the call sign is not abbreviated. Therefore, the readback shall include your full call sign.

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