As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN FLOOR STRUCTURE, FLOORBEAM UPPER "T" CAP UPPER SURFACE HAS 2 SPOTS OF CORROSION. BS 1016 RBL 5 TO 14.5 AT WL 208. MAJOR REPAIR ACCOMPLISHED: REMOVED CORROSION. FABRICATED & INSTALLED FILLER, STRAP & NESTED ANGLE REPAIR ON FWD SIDE OF FLOORBEAM CAP.