A/T and alpha floor protection in B777
When the pilot just disengage the A/T by pressing the A/T disconn switch on both throttle level, does A/T remain in armed status? A/T should wake up after you select SPEED or VNAV mode on MCP, right? Similarly, it should wake up by alpha floor protection when speed is too low and approaching the stall. Why was not alpha protection activated in Asiana 214 if we assumed they never touch FLCH button? How does the FD affact the status of A/T?