Why alternator off during eng fail
On a C172 I instruct (and was instructed) the crash drill:
FMAM
Fuel selector off
Mixture Idle cut off
Alternator off
Magnetos off
My question is, why to switch off the alternator? It is also done automatically after the last flap selection on short final, when you switch off the battery (because you cannot switch off the battery without switching off the alternator)...?