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Aeromedical factorsQuestion 878 of 934

How can a pilot clear a blocked ear during a descent?

  1. Cover the ears with both hands and press gently inward
  2. Open the cabin vents and breathe deeply
  3. Pinch the nostrils shut, close the mouth, and blow slowly and gently
  4. Yawn once and hold the ears closed
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Correct answer: Pinch the nostrils shut, close the mouth, and blow slowly and gently

This forces air through the Eustachian tube into the middle ear.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17: Aeromedical Factors — Middle Ear and Sinus Problems, page 427

Practice aeromedical factors

Questions last reviewed: 18 October 2026