in flight Lo Pitch or ATPCS failure
I would like to present these two possible scenarios with ATPCS failed compounded with Eng Flame out.If not reacted to properly in the second segment climb..performance would be severely diminished, this added to posiible mishandling and eroding speed below Vmca...possibly leading to the loss of control we saw depicted in the video sequence.58 people is not a full load on an ATR 72 and for performance to be diminished like that Lo Pitch and or ATPCS might have played a critical role.The assymetric drag experienced during LO pitch if prop not feathered is worse than during engine flame out.It is a Memo item! ATPCS provides for(apart from torque boost on the live engine) auto feather on the engine suffering power loss.So if ATPCS failed...you take matters in your hands..and deal with it swiftly or brace!
Last edited by Trackdiamond; 4th Feb 2015 at 12:57.