Originally Posted by
sm165019117
when the flight director is not required, the pilots in left and right seat
should reset it according to the procedures:
Flight Director Switches (Both) .......................................OFF PM
Flight Director Switch ......................................................... ON PM
what's the purpose of turning PM's FD ON?
EDIT: Ignore previous... Just remembered it's to ensure the FDs stay displayed when TOGA mode finishes (other mode selected / becomes active). They will auto pop-up with FD switch off, but disappear again later.