As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK, AFT CARGO COMPARTMENT BS 950A + 19" INTERCOSTAL LBL 5" HAS FASTENERS POPPED AND METAL CRACKED. REMOVED INTERCOSTAL AT AFT CARGO PIT IAW SRM 51-30-2. FABRICATED NEW INTERCOSTAL IAW SRM 53-10-2 FIG 5 AND 51-20-1. LOCATED AND DRILLED NEW INTERCOSTAL IAW SRM 51-30-5. TREATED AND PRIMED AREA AND PART IAW SRM 51-10-2. INSTALLED NEW INTERCOSTAL IAW SRM 51-30-2.