As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 652 INITIAL INSPECTION: CORROSION ON ANGLE OF FLOOR CHANEL SUPPORT BTW STA 1670 TO 1680, LBL 53 AND RBL 53, AT PAX CABIN FLOOR STRUCTURE. (W4). CORRECTIVE ACTION: SUMMARY NRC 00646: ANGLE OF FLOOR CHANEL SUPPORT WAS REPLACED PER B757-200 SRM. (1875403)