What was found
PASSENGER DOOR OUTER HANDLE CASS MESSAGE ILLUMINATED IN FLIGHT, 20,000 FT, DIFF PRESSURE 7.0. F/A STATED WITNESS MARKS NOT ALIGNED, CW QRH. ONCE ON GROUND CAPTAIN VERIFIED WITNESS MARKS WERE ALIGNED, PRESSURE NORMAL. GROUND CREW VERIFIED PASSENGER DOOR HANDLE WAS FLUSH AND CLOSED PROPERLY, PLACARDED AND PLACED ON MEL.