What was found
CRACKS ON PAN FWD EDGE AND AFT EDGE BETWEEN BEAM #2 AND #3 AT AFT CARGO DOOR. SUMMARY OF NRC 00366: AFT CARGO DOOR ASSY WAS REMOVED PER AMDS 5231-4002, WAS REPLACED WITH SERVICEABLE AFT CARGO DOOR ASSY, AND WILL BE INSTALLED WITH AMDS 5231-4004. (LP #0336365)