FAA Commercial Pilot Airplane (CAX)Human Factors and ADMEasy

During preflight planning, a commercial pilot uses the IMSAFE checklist. What is the primary purpose of this checklist?

  1. ATo verify the airplane's weight and balance is within limits
  2. BTo evaluate whether the destination airport has adequate runway length
  3. CTo determine if the airplane's fuel reserves meet regulatory minimums
  4. DTo assess the pilot's personal fitness to fly before each flight
Show answer & explanation

Correct answer: D. To assess the pilot's personal fitness to fly before each flight

IMSAFE (Illness, Medication, Stress, Alcohol, Fatigue, Emotion) is a personal self-assessment checklist pilots use to evaluate their own physical and mental readiness to fly safely.

Why the other options are wrong

  • A. Weight and balance is assessed separately, not part of IMSAFE.
  • B. Runway length is an airport performance consideration, unrelated to IMSAFE.
  • C. Fuel planning is an aircraft/flight planning consideration, not personal fitness.

IMSAFE Checklist

A personal self-evaluation checklist pilots use before flight to assess fitness to fly.

  • Stands for Illness, Medication, Stress, Alcohol, Fatigue, Emotion
  • Used before every flight as part of ADM
  • Helps identify personal risk factors that could impair performance

Memory trick: I'M SAFE to fly only if I check myself first

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