Originally Posted by
AlexGG
The flight before LionAir crash, had the same symptoms, but did it have the AoA sensor vane missing or shaft failure?
No but it was active with a constant ~20 degree offset to good sensor and no reported AoA heater fail, which would have led to it's replacement.
Clearly a different issue, simplest explanation would be it was stressed on installation causing the vane to slip on shaft but not known if that is possible.