Author Topic: Shut down/cut off/switch off.  (Read 6056 times)

Offline zarrina

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Shut down/cut off/switch off.
« on: March 12, 2015, 12:06:23 AM »

Hi everyone, I wonder about these prhases: Can you tell me please, where  they have to be used?

In my case "Shut down" is used as an instruction for pilot to shut down the engines.

And "Cut off" or "Switch off"  are used when engines are off by themselves  :|.

Offline mdb5464

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Re: Shut down/cut off/switch off.
« Reply #1 on: May 04, 2015, 02:46:43 PM »
Typically to "shut down" and engine means to follow a speicifed procedure or checklist to stop that engine from running. Depending on the aircraft, this procedure may involve the use of a "cut off" switch or lever, which is a mechanism that controls the flow of fuel into the engine, thus causing the engine to stop running.

Sometimes in audio clips regarding engine related emergencies, you'll hear the terms "engine failure" or "we've lost an engine." Both of these phrases indicate that the engine shut down or flamed out for reasons outside of the pilot's control (e.g. bird strike, fuel starvation, ice accumulation, etc.). Other times you might hear "we've shut down an engine," indicating that for some reason (fire, exceeding operating limits, unusual vibrations, etc.) the pilot has initiated an engine shut down to prevent further damage to that engine.