As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A C-CHECK, THE CARGO COMPARTMENT FLOORBEAM CAP STRIP AT FS 589 BETWEEN LBL 9 AND LBL 27 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE IS REMOVING AND REPLACING THE CARGO COMPARTMENT FLOOR BEAM CAP STRIP AT FS 589 BETWEEN LBL 9 AND LBL 27. (K)