As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CARGO FLOORBEAM ANGLE AT BS 500L LBL 24 TO RBL 24 CORRODED SEVERAL PLACES. ACFT GROUNDED. REMOVED CORROSION ON FWD PIT FLOOR SUPPORT ANGLE AT BS 500L, LBL24 TO RBL24 IAW SRM 51-10-02. ORIGINAL THICKNESS IS .080 IAW DWG 143A9485, REMAINING THICKNESS IS .060, REMOVED .020. FOUND TO BE OUT OF LIMITS. R & R WITH NEW SUPPORT IAW SRM 51-40-02 & BAC DWG 143A9485, REV B.