FAA Questions/Aircraft Dispatcher/Question #5
loading dispatchFAA-published sample question (ADX, Aug 2021)

If a four-engine air carrier airplane is dispatched from an airport that is below landing minimums, what is the maximum distance that a departure alternate airport may be located from the departure airport?

A

Not more than 2 hours at normal cruise speed in still air with one engine inoperative.✓ Correct Answer

B

Not more than 2 hours at cruise speed with one engine inoperative.

C

Not more than 1 hour at normal cruise speed in still air with one engine inoperative.

Explanation

14 CFR 121.617(a) requires a takeoff alternate when departure weather is below landing minimums; for airplanes with three or more engines it must be within 2 hours of the departure airport at normal cruising speed in still air with one engine inoperative. One hour applies to two-engine airplanes.

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