A big bang and a big cloud of white smoke was the first thing that caught my attention when the aircraft I was flying suffered severe damage to its PT6.
The power lever was also stuck and the prop began causing considerable drag which made the climb performance suffer somewhat, it being a single engined aircraft.
Then I noticed the rpm to be zero and the ITT falling so I was sure something had ahappened.
On the other hoof, the fuel flow was zero so I was sure this would not be the limiting factor in dealing with the situation.