As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN BS 947.5 UPPER FLOORBEAM CORRODED AT RBL 5. ACFT GROUNDED. FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1, FIGURE 104, DETAIL C. ACCOMPLISHED A CATEGORY A REPAIR ON THE UPPER FLOORBEAM TEE LBL 10 - RBL 60 IAW 53-70-51-2R-5, REPAIR 5, ALTERNATIVE 2.