As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 4K-CHECK IN CWA, AFT PORTION OF LT CENTER IS SEAT TRACK LBL 18.3 HAS HEAVY CORROSION FROM APPROXIMATELY STA 686.5 TO 633 ON FLOORBOARD FLANGE. MAINTENANCE TREATED CORROSION AND REPAIRED SEAT TRACK IAW SRM 53-70-60, MAL EO S53078.