So reading the lines and a little in-between:
Bell 412 at high altitude has a Eng chip caution.
Pilot shuts down engine.
Power from one engine not enough to maintain altitude.
Aircraft crashes.
Someone's assigned to investigate who has little knowledge of piloting and the performance basics of twin engine helicopters.
I do admire your persistence with this Craven Spirit but I don't really think that you are qualified and experienced enough to be investigating a B412 crash. I hope this is not taken the wrong way but you appear to be out of your depth and lacking in the support you need to investigate.