Originally Posted by
FCeng84
Bernd - As for your first two points above, you have it right. MCAS does not know where “trim” is, but it does two things related to trim. First, it will undo what it does in response to high AOA when AOA reduces provided the crew has not activated trim themselves. Second, it makes the assumption that if the crew does make their own trim inputs, they know better and will provide sufficient trim inputs to command the stabilizer to the proper trimmed position.
Thanks, FCeng84.
I'll replicate your 4 points from before for reference:
1. High AOA is detected leading to one MCAS increment of stabilizer
2. Manual pilot electric trim command is detected thus causing a reset of MCAS
3. Pilot does not fully command stabilizer to its trimmed position
4. High AOA is once again detected leading to another MCAS increment of stabilizer
Still trying to understand what you are saying: so your point 3. above is really just implicit: they probably didn't trim properly because they (4.) encountered high AoA again.
It starts making a bit more sense.
Bernd