As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 3353, CORROSION FLOOR BEAM -Y450 LOCATED FR31 TO FR37 IN PASSENGER CABIN (SS I 532134-01-2). CORRECTIVE ACTION: REPLACED FLOOR BEAM -Y450 LOC. FR 26/28 TO FR37.4 IN PASSENGER CABIN AS PER A330 SRM 51-72-11-911-001 AND DWG F53276421. (LP 2824651)