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Free PSTAR practice Clearances and Instructions

If all or part of an ATC clearance is unacceptable, a pilot should

  1. Acomply as best as possible under the circumstances.
  2. Brefuse the clearance without giving a reason for refusal.
  3. Cacknowledge the clearance and read back only the acceptable parts.
  4. Drefuse the clearance and inform ATC of their intentions.Correct answer

Why this is the answer

A clearance is an offer the PIC may decline (CAR 602.31). If any part is unacceptable, refuse it and tell ATC what you intend to do instead, so they can issue an amended clearance. Partial read-back of "only the acceptable parts" leaves ATC with a false picture.

Reference

CARs 602.31 – Compliance with Air Traffic Control Instructions and Clearances TC AIM-RAC – ATC Clearances, Instructions and Information

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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