What was found
NUMBER 1 ACM COMPARTMENT AFT BULKHEAD STATION 595, INBD UPPER, RT BELOW OF CEILING, SHOWING CRACK 4 INCHES LONG, MARKED. SUSPECT THE CRACK DUE TO EXCESSIVE AIR LEAKING DURING FUSELAGE DECAY CHECK. DID DVI OF AREA, FOUND TWO MISSING FASTENERS. INSTALLED NEW FASTENERS IAW SRM 51-33-01 VOL 2. NDT REQUESTED TO CHECK FOR CRACK. COMPLIED WITH HFEC OF NR 1 ACM AFT BULKHEAD WEB IAW NDT SPM PART 06, NO DEFECT NOTED.