As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCQ - MAJOR REPAIR - DURING C-09 CHECK EXFOLIATION CORROSION WAS FOUND ON AFT CARGO COMPARTMENT FLOORBEAM AT NUT PLATES BETWEEN BS 1500 TO BS 1510, LBL 14. MAINTENANCE REMOVED CORRODED FLOORBEAM CAP BETWEEN BS 1500 TO BS 1510, LBL 14; FABRICATED A NEW REPLACEMENT CHANNEL AND REPAIR ANGLES; INSTALLED REPAIR PARTS IAW B757-200 SRM 51-70-1 FIG 1.