Aircraft systems and instrumentsQuestion 571 of 934

Who may adjust the magnetic compass and complete the compass correction card?

  1. Any pilot who holds a private pilot certificate
  2. The aircraft owner if they hold a pilot certificate
  3. A flight instructor during a flight review
  4. Only an aviation maintenance technician (AMT)
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Correct answer: Only an aviation maintenance technician (AMT)

Pilots use the deviation errors on the card to determine and fly compass headings.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 8: Flight Instruments — Compass Systems — Magnetic Compass Induced Errors, page 227

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026