This is an aerodynamic question I guess. Without getting into airplane brands, is there a problem with slow, high alpha flight creating a turbulent, low pressure area infront of the turbine that would cause the engine to not be able to respond to increased throttle demand due to high exhaust gas temp, or not be able to increase RPM because there is not enough air to support the increase in fuel.

We have had two power failures with subsequent pancake landings when after a long - 30 seconds, slow, high alpha flight at approximately half throttle, the turbine would not respond to the throttle. In both instances there was sufficient time, 4 seconds, for the system to spool up from the half throttle setting. We could not detect any change to the engine sound during the decent, once throttle was advanced.

The first incident was chalked up to pilot error, but the second one was definitly lack of response from the turbine.

The engine is a JC P-120 and it is mounted on a Hot Spot, what do you think?????????????