As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 6812, L/P 1342843) CORROSION ON CHANNEL BTW STA 345 AND 365 RBL 62 , AT PASSENGER CABIN FLOOR STRUCTURE (CPAX). CORRECTIVE ACTION: SUMMARY OF NRC00411 CORROSION LEVEL 2; FOR EXCESSIVE CORROSION ON CHANNEL BTW STA 345 AND 365 RBL 62, AT PASSENGER CABIN FLOOR STRUCTURE WAS REPLACED PER B757-200 SRM 51-40-02 PAR.7 AND DWG141N5160-79 REV.CD.