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Flight rulesQuestion 81 of 934

A pilot deviates from an ATC instruction because of an emergency. What must the pilot do?

  1. Notify ATC as soon as possible
  2. Send a written report to ATC within 10 days
  3. Report to ATC only if ATC asks about it
  4. Report to ATC only after the flight lands
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Correct answer: Notify ATC as soon as possible

The pilot must notify ATC of the deviation as soon as possible.

Source: 14 CFR Part 91, § 91.123 Compliance with ATC clearances and instructions.

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Questions last reviewed: 18 October 2026