Originally Posted by
threemiles
How can "Automatic disengagement of autopilot" be an effect from AOA disagree, if the failure condition "can occur during manual flight only"?
The bulletin highlights nose down stabilizer trim due to erroneous AOA in manual flight only. That's what the bulletin is about. But it also mentions some other things that erroneous AoA can be responsible for including disengaging the AP. Logically, I take that as meaning that erroneous AoA effects can occur in any control condition one of which may be when in AP mode. Erroneous AoA affects both flight control regimes, but as a result of AoA erroneous data, nose down stabilizer trim will only occur in manual flight. Happy to be corrected by anybody who knows more about these things than I do.