@Sensor_Validation (post #1765)
Quote:
Has it been confirmed what AoA sensors were fitted?
Pretty likely the Thales C16291AA given the choice of Pitot tube, if so one could have been suffering an extreme variation of the known fault at low temperature:-
According to La Tribune newspaper, the EASA is about to require the change of about 1,600 Thalès AoA sensors known to have a flaw. It seems the fabrication process might be responsible for some oil to be left unnoticed in the mechanism. With decreasing temp, the oil can slow or even block the sensor movement. This problem happens at random during manufactoring according to the article. Also, it restricts the affected Thalès AoA sensors to A320. But we would need to cross-check that, wouldn'd we ?
Source:
Airbus : des sondes thales de mauvaise qualité