What was found
ON FLT 440 - ATL - AIR RETURN, THE RIGH PACK OVERHEATED IN FLIGHT. THE TEMP CONTROL KNOB HAD NO EFFECT ON VALVE POSITION WHICH WAS IN FULL HOT. ASSIGNED MEL NR DM5116, SEQ 21-01 RIGHT PACK INOP.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON FLT 440 - ATL - AIR RETURN, THE RIGH PACK OVERHEATED IN FLIGHT. THE TEMP CONTROL KNOB HAD NO EFFECT ON VALVE POSITION WHICH WAS IN FULL HOT. ASSIGNED MEL NR DM5116, SEQ 21-01 RIGHT PACK INOP.