As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 0668 CORROSION ON FLOOR STRUCTURE BTW STA 319 TO STA 322 RBL 4 ITS OUT OF LIMITS. CORRECTIVE ACTION SUMMARY OF NRC 00555: FLOOR STRUCTURE BTW STA 319 TO STA 322 RBL 4 WAS FABRICATED PER B757 DWG 141N5160, BAC 1508-238 AND INSTALLED PER B757-200 SRM 51-40-02. (2991439)