Originally Posted by
DaveReidUK
My understanding is that MCAS uses Captain's and F/O's AoA sources on alternate flights.
That is my understanding too, I am just starting to think that I have reached that understanding by just assuming MCAS works the way the rest of the 737 FCC stuff does and not from actual released information.
MCAS clearly used same AOA source on consecutive LionAir flights, the reason for that has not yet been confirmed.