As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION (C53-111-01, -3) IN AFT CARGO BAY AT BS 1050 LBL 20 TO RBL 20 WL 199 ON FLOORBEAM AT NUTPLATES HOLES. REMOVED CORRODED SECTION OF BS 1050 FLOORBEAM FROM LBL 25 TO RBL 25 WL 199 LOWER FLANGE. REPAIRED LOWER FLANGE PER FEDEX SRM 53-10-8 FIG 3 EA NR 7-5310-31192.