What was found
IN CRUISE AT FL330 FOR FL340 HAD A RAPID DECOMPRESSION. THE CABIN RAPIDLY CLIMBED TO THE A/C ATTITUDE & A EMERGENCY DESCENT WAS IN PROGRESS. PERFORMED QRH PHASE ONE'S AND LOSS OF PRESSURIZATION CHECKLIST. FOUND MAIN A SECTION OF MAIN CARGO DOOR SEAL PROTRUDING FROM THE DOOR. FOUND TWO FWD LATCH SPOOL BRACKETS AND SURROUNDING AREAS DAMAGED. REPLACED UPPER & LOWER DOOR SUPPORT BEAMS (STA 622-767). REPLACED ATTACH FITTINGS (632-634) REPLACED DOOR SPOOLS. REPLACED DOOR STRIKER & LATCH TRIGGER. PERFORMED EDDY CURRENT INSPECTIONS. INSTALLED DOOR SEAL. CHECKED DOOR JAM FIT/FAIR AND RIG. PERFORMED PRESSURIZATION LEAK CHECK