Originally Posted by
Eddie Dean
fairly sure Ng will go to zero if engine is shut down. Np will do whatever the prop is doing.
FCU drive shear should go to full noise. Well on a - 20 and -34, maybe -41 and -42 have different arrangement. In my uneducated opinion
-42 / 41 are the same with the nylon drive between the hpx edp and the gov section of the fcu. If the drive fails it will go into high uncontrollable engine speed the O/S gov will control the engine to max until it can be shut down via the condition lever