As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT C CHECK FOUND MAIN CARGO BAY, FLOORBEAM CORODED AT BS 72. FLOORBEAM CORODED BEYOND LIMITS LBL 37 TO RBL 28 AT TOP SURFACE. CUT OUT UPPER FLANGE OF FLOORBEAM BS 720D FROM LBL 37 TO RBL 28. INSTALLED FLOORBEAM REPAIR AT UPPER CHORD BS 720D.