What was found
DURING C-CHECK, FOUND THE AFT PRESSURE BULKHEAD LT UPPER NR 1 RADIAL INBOARD CORNER CRACKED. REPLACED RADIAL STIFFENER IAW DC-9 SRM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK, FOUND THE AFT PRESSURE BULKHEAD LT UPPER NR 1 RADIAL INBOARD CORNER CRACKED. REPLACED RADIAL STIFFENER IAW DC-9 SRM.