NavigationQuestion 840 of 934

A lost pilot gets an offer of direction finding (DF) assistance from a controller. What does the controller ask the pilot to do?

  1. Squawk 7700 and fly a heading of 360°
  2. Fly a heading of 360° for one minute
  3. Key the transmitter for a few seconds, then release it
  4. Switch the transponder to ALT and fly wings level
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Correct answer: Key the transmitter for a few seconds, then release it

This gives the controller enough information to plot the aircraft position and then give vectors.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 16: Navigation — Lost Procedures, page 421

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Questions last reviewed: 18 October 2026