Free PSTAR practice Aeromedical

Flight crew members who require decompression stops on the way to the surface when SCUBA diving should not fly for

  1. A4 hours.
  2. B8 hours.
  3. C12 hours.
  4. D24 hours.Correct answer

Why this is the answer

Per TC AIM-AIR (SCUBA Diving), after a dive that required decompression stops, supersaturated nitrogen raises the risk of the bends at altitude, so the pilot must wait 24 hours before flying. The shorter intervals apply only to shallow dives with no decompression stops.

Reference

TC AIM-AIR – SCUBA Diving

Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.

A study aid — not a substitute for the official guide, the CARs, or your instructor.

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