Originally Posted by
bill fly
So the AoA Sensor is usually a pretty rugged piece of kit.
What could cause it to fail?
Either the output has an anomaly (electrical/electronic side) or there is a mechanical problem (vane stuck).
What could cause a vane to stick?
Fine sand? Volcanic ash?
Where did this happen?
We had a stuck vane happen on one of our NGs just a few weeks ago due to a birdstrike.