A TCAS Resolution Advisory (RA) response maneuver is completed and a return to the ATC clearance or instruction is initiated. Choose the correct pilot and controller interchange:
(1) Clear of conflict, returning to FL240
(2) Clear of conflict, resuming FL240
(3) Roger
(4) Affirmative
ICAO Doc 4444
12.3 ATC PHRASEOLOGIES
... after a flight crew starts to deviate from any ATC clearance or instruction to comply with an ACAS resolution advisory (RA) (Pilot and controller interchange) | Pilot: TCAS RA; ATC: ROGER |
... after the response to an ACAS RA is completed and a return to the ATC clearance or instruction is initiated (Pilot and controller interchange) | Pilot: CLEAR OF CONFLICT, RETURNING TO (assigned clearance); ATC: ROGER (or alternative instructions); |
… after the response to an ACAS RA is completed and the assigned ATC clearance or instruction has been resumed (Pilot and controller interchange) | Pilot: CLEAR OF CONFLICT (assigned clearance) RESUMED; ATC: ROGER (or alternative instructions); |
… after an ATC clearance or instruction contradictory to the ACAS RA is received, the flight crew will follow the RA and inform ATC directly (Pilot and controller interchange) | Pilot: UNABLE, TCAS RA; ATC: ROGER |
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