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词汇与结构If the faulty circuit cannot be readily detected and isolated, and flight conditions permit, the battery master switch and alternator/generator switches should be turned off to remove the possible source of the fire. However, any materials which have been _____ may continue to burn.
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词汇与结构_____ a pilot becomes aware of an in-flight engine compartment fire, it usually is well developed.
词汇与结构They can also be indicated by discoloration, bubbling, and/or melting of the engine cowling skin in cases where flames and/or smoke is not _____ to the pilot.
词汇与结构Engine compartment fires can be ______ by smoke and/or flames coming from the engine cowling area.
词汇与结构Unless the airplane manufacturer directs otherwise in the AFM/POH, the first step ______ a fire should be to shut off the fuel supply to the engine.
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