Night flying in the mountians in a cessna 150,

"Jose" wrote

If the fuel pump breaks and thus all four engines quit, did you have an
engine failure?

Jose

First of all, the fuel pump in your example would have to be an auxiliary
fuel pump, not the engine mechanical fuel pump, and all the engines are
crossfeeding off of the one tank and pump, if it is going to fail all the
engines, right? If that all is true....(unlikely, but for the sake of
argument), then....

Nope. Log it as loss of power. It still sucks if you are over the
mountains in the night, but the mechanic will not have to fix the engine(s),
but will have to fix the fuel pump.
--
Jim in NC