Wednesday, October 28, 2026 · Captain's Challenge
The Captain's Challenge.
Every evening, a harder question from the commercial, instrument and airline-level written exams. Only the best get this one. Each one answered, explained and cited, free. Tap your answer to see how you did.
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Capt. Mike: Here's that evening's Captain's Challenge. Tap your answer.
An IFR pilot receives an ATC clearance that the aircraft cannot comply with. What should the pilot do?
The answer
2Inform ATC immediately that it cannot comply
Explanation
TC AIM RAC 1.6: “If unable to comply with the clearance, pilots should immediately inform ATC since the controller will understand the acknowledgement of the clearance as indicating acceptance.” RAC 6.1 repeats that simple acknowledgement “will be interpreted by the controller as acceptance.”
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