As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, UPPER CABIN SEAT TRACK NR 4 BS 344 TO BS 360 RBL 24 WITH CORROSION. DAMAGED SEAT TRACK FOUND TO BE OUT OF LIMITS IAW 727 SRM 53-10-1 FIG 3. REMOVED DAMAGED SEAT TRACK & INSTALLED NEW P/N BAC 1520-792 PO 900203 DIM 135.5 INCH LONG IAW 727 SRM 53-10-5 FIG 7.