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The Pilot-in-Command of a commercial air transport flight has requested assistance due to a passenger experiencing symptoms of a heart attack. A doctor on board is already attending to the passenger. The flight crew suddenly hears a radio call of a small single-engined piston aircraft that is experiencing an engine failure. The radio calls with the highest priority are those of…

  • A
    The small single-engined piston aircraft experiencing an engine failure.
  • B

    The commercial air transport aircraft, due to the medical emergency.

  • C

    All aircraft on the frequency, as they all have the same priority.

  • D
    The first aircraft on the frequency.

⇒ The passenger experiencing symptoms of a heart attack is receiving medical care - therefore, it would be more of an Urgency situation. An engine failure/fire on a single-engined aircraft is a distress situation.

Distress messages have priority over all other transmissions, and urgency messages have priority over all transmissions except distress messages. Therefore, the radio calls of the small single-engined piston aircraft experiencing an engine failure have the highest priority.

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