Originally Posted by
OldnGrounded
Why would he "know" that?
Because Boeing stated MCAS inoperative with flaps extended. If crew extended flaps before reengaging electric stabilizer they could have prevented MCAS from operating. That would have allowed them to easily trim plane electrically. With known MCAS issue retracting flaps at 1000 agl seems too soon to me. At that altitude MCAS engagement more difficult to control.