Originally Posted by
73qanda
FCeng84 or anyone more knowledgeable than me can you explain any relationship between the Feel diff press defect ( written up on the Lion Air aircraft) and the AOA vane?
My thoughts were that Feel Diff Press meant either a hyd system failure or the elevator pitot was in trouble.
Cheers
Incorrect AoA data can cause the aircraft to "believe" it's in a stall situation, when it is not.
As a result it can increase the feel pressure to 4 times the normal pressure, to make it harder to pull the control column and bring the aircraft deeper into the stall.