Ok this is simple, your dead if its a fuel fire, and you can live if its just an engine fire. Fuel fire cant be put out, or can it
? Engine fire, if you turn off your engine when your at least 10k in air it should turn off fire immediately. Im not responsible for anything i say...
Fuel fire will go out if you run out of fuel. <G>
Shutting down the engine rarely puts out an "engine" fire. The engine fire many times is caused by either and exhaust system failure or cylinder failure, both of which put flame into the engine compartment. If you've ever been around a Wright engine you know they tend to be wet with oil and that oil starts burning. Then right behind the engine is a 38 gallon oil tank. Things can get ugly pretty quick.
Once had the pleasure of looking out the side window and watching a cylinder let go on #1 with a resulting big ball of fire and smoke out of the cowling. Oh yeah, we were having fun then!!