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During the cruise, your engine catches fire and you suspect the carburettor. Which of the following actions would be most likely to stop the fire?

  • A

    Turning off the cockpit fuel switch

  • B

    Shutting off the ignition

  • C

    Pulling back the throttle and setting the mixture to ICO

  • D

    Setting the mixture to ICO

With any fire, we want to remove the

  • fuel
  • oxygen and
  • heat

With an engine fire in flight, we only really have control over the fuel, so we must turn this off. This is done by:

  • Switching off the cockpit fuel switch
  • Setting the mixture to ICO (idle cut-off)

In this question, this leaves 2 possible correct answers. Of these 2 options, switching the fuel to OFF is the correct option as this is considered a more certain method of ensuring the fuel starvation of the engine. The question asks ‘most likely to stop the fire’ and although not a great question, feedback confirms this answer.

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This question has appeared on the real examination, you can find the related countries below.

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