Originally Posted by
DaveReidUK
I'd be very interested to see a reference that says that.
I can't find primary references stating that, other than the text and chart by
LEOCh previously mentioned:
https://www.pprune.org/rumours-news/618252-boeing-737-max-software-fixes-due-lion-air-crash-delayed.html#post10423226
The best simple description is a single sentence from b737.org.uk:
737 MAX - MCAS
After AoA falls below the hysteresis threshold (0.5 degrees below the activation angle), MCAS commands nose up stabilizer to return the aircraft to the trim state that existed before the MCAS activation.
Edit: There is an intriguing extra sentence (mangled meaning?) about the proposed improvements:
Furthermore the logic for MCAS to command a nose up stab trim to return to trim following pilot electric trim intervention or exceeding the forward column cutout switch, will also now be improved.