As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-09 CHECK EXFOLIATION CORROSION WAS FOUND ON AFT CARGO COMPARTMENT FLOORBEAM AT BS 1320 AND BS 1330, RBL 2. MAINTENANCE REMOVED DAMAGED AREA OF FLOORBEAM BETWEEN BS 1235 AND BS 1340, RBL 2; FABRICATED A NEW REPLACEMENT SECTION OF FLOORBEAM AND REPAIR SPLICES; INSTALLED REPAIR PARTS IAW B757-200 SRM 51-70-11 FIG 1 PG 6.