As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN BULK CARGO COMPARTMENT, AFTER FLOOR SUPPORT INTERCOSTAL REMOVED. CORROSION FOUND ON FLOOR SUPPORT HAT SECTION HORIZONTAL FLANGE A AT ZONE 150 AFT, BS 1980, RBL 55. FLOOR SUPPORT HAT SECTION REPLACED AS PER SRM H-4001. FOUND DURING SCHEDULED C-CHECK AND CPCP TASK CARD ACCOMPLISHMENT AT HAECO MAINTENANCE/REPAIR FACILITY, IN HONG KONG (VHKG). CPCP TASK CARD NR C53-100-01-6-10. NON ROUTINE TASK CARD NUMBER JF64166.