Ian W #1794
For some reason they didn't switch the auto stab trim off. I would really like to know where that flying spanner was, as this looks like a fault finding exercise gone wrong rather than set the systems safe and land.
What a fascinating thought. I've flown with people that launched into the most extraordinary series of flight testing - with a full load of SLF. I thought those days were history.
Mad (Flt) Scientist.
MCAS appears designed to give assistance to using the elevator to recover from a high AoA condition. Likely the scenario for which it is implemented also includes some combination of high thrust (causes nose-up moment) and stab trimmed to abnormally nose-up position. Both 737NG and, I think, at least one AB variant have had high pitch angle upsets in very similar conditions, and the concern for such a scenario has been the subject of more general discussions.
Sorry, lost poster.
It is still very much unclear why their successful and consistent NU trim corrections are suddenly insufficient to counteract MCAS.
Doesn't this shout about the high fuel flow during the last sharp climb?