3 ms·
> ...they are not allowing it to reactivate until the AoA returns to normal. Puah, but what is "normal"? This is probably kind of tricky to define if you canno
by zepearl 8y ago
> ...they are not allowing it to reactivate until the AoA returns to normal.
Puah, but what is "normal"? This is probably kind of tricky to define if you cannot potentially rely on the sensor(s). Additionally I understand that the auto-trim of MCAS was created to actually react to "abnormal" situations (nose too high), which brings us here into a conflict :)
- VBprogrammer 8y agoBy normal I mean below its threshold for activation. According to Boeing this depends on speed and attitude. Of course this leaves the problem of what happens if the sensor data was wrong but fluctuating wildly. Which is what I was getting at in the other paragraph. In both the Lion Air and the Ethiopian incident the sensor data went to some very high value and stayed fixed basically until the aircraft hit the ground so perhaps they know that is the only failure mode or maybe they are accounting for other failures but don't feel the need to expand upon that in public.