As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, CABIN SEAT TRACK AT LBL 24 IS CORRODED AT STA 1136 AND STA 1156. REMOVED CABIN SEAT TRACK SECTION IAW B 727 SRM 51-30-2. FABRICATED A NEW SECTION OF SEAT TRACK IAW B-727 SRM 57-10-5 FIG 1. INSTALLED NEW SEAT TRACK IAW B-727 SRM 53-10-5 FIG 1.