737NG ram air / deflector doors.
Hi all,
have recently heard of a couple of cases of pack / bleed trip events preceded by "RAM AIR DOOR FULL OPEN" caution lights.
Does the ground deflector door operate completely independently of the ram air door and what actions if any would you take if you saw a "RAM AIR DOOR FULL OPEN LIGHT" on at high altitude?
I understand that deflector door deployment at speed can restrict heat exchanger airflow with potential pack overtemp following. I also understand that the ram air doors can be locked full open by MEL but I'd like to know if there is any way of telling if the deflector doors are deployed in flight.
many thanks clever people.