Outside of combat, fuel fires are very rarely in the fuel tanks (TWA 800 being a notable exception, and there are ways it could have been avoided), and a for a

Outside of combat, fuel fires are very rarely in the fuel tanks (TWA 800 being a notable exception, and there are ways it could have been avoided), and a for a fire in an engine, the fuel can be cut off and fire extinguishers used. On the other hand, liquid fuel is probably much more dangerous in a crash.