As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 5645, L/P 1386133) CORROSION ON FLOOR SUPPORTS (2EA) STA 1660 TO 1680 RBL58 AND LBL58 AT PAX CABIN FLOORSTRUCTURE. CORRECTIVE ACTION: CORROSION LEVEL 2. FLOOR SUPPORTS WERE REPLACED PER DWG 146N5230 REV CJ AND B757-200 SRM 51-40-02-0G PAR. 7.