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ATC clearances and communicationsQuestion 213 of 351

After an IFR radio failure, you try to contact any ATS facility or other aircraft. What do you ask them to do?

  1. Give you a new transponder code
  2. Relay your difficulty to the last ATC unit you talked to
  3. Cancel your flight plan
  4. Send a rescue aircraft
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Correct answer: Relay your difficulty to the last ATC unit you talked to

You ask them to relay the information to the last ATC unit with which you had communications.

Source: Canadian Aviation Regulations (SOR/96-433), CAR 602.137(1)(c) Two-way Radiocommunication Failure in IFR Flight

Practice atc clearances and communications

Questions last reviewed: 18 October 2026