H500 - Yes, not much to go on.
I noticed this in the report: "...a visual inspection of the engine cooling fan and fan shroud indicated that the engine was not running at the time of the accident. The degree of damage to the rotor blades also indicated that the engine was providing little or no power."
I'm not a helicopter pilot but I wondered if the 269C has a governor which would have been opening the throttle as power output and engine RPM decayed for unknown reasons, leading to the increasing MAP...