QNH,
So why did the engine fail, "IF" it did? Was it icing or was it something else? Why did the aircraft continue to descend towards rising terrain with an engine out (on a consistent track)? The pilot clearly broke many rules (MSA, Approach, Icing etc.) even if the engine did fail, it is still the pilot's responsibility for the safe conduct of the flight. That is, to plan for an engine failure, how did he expect to climb at 3.3 % if the engine had failed given that it was very unlikley to get visual?