As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON ON AFT CARGO DOORWAY SURROUNDING STRUCTURE CORROSION FOUND AT AFT FINGER PLATE DOUBLER BTW FRAME 79 TO FR 80 AND BTW STRINGER 26R TO STRINGER 27R; REF AAR NR 53-244 AFT CARGO DOOR CUTOUT STRUCTURE BTW FR 79-80, STR 26 -27R. AFT FINGER PLATE REPLACED IAW SRM II 51-43-04 REV 36. PN 170-85207-001.