Originally Posted by BobnSpike
Here is a clue:
Very good clue, I'd say.
Originally Posted by twochai
The HS prop on any PW 100 series engine will be driven to feather after loss of oil pressure by springs after any normal, or abnormal shutdown.
No it won't. What You wrote is valid for PT6. PW100s are radically different.
Originally Posted by Livesinafield
Possibly just feathered the prop after the overspeed causing a loss of control
I'm not sure that I understand... what caused the loss of control? Overspeed or feathering? What makes you think that loss of control was involved?