As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: DURING C-CHECK AT KDHN CORROSION FOUND AT STATION 639R-658R RBL 0 SEAT TRACK AROUND FASTENERS. CORRECTIVE ACTION: COMMERCIAL JET REMOVED CORRODED SEAT TRACK SECTION AND SPLICED IN SEAT TRACK BETWEEN 588R AND 43.5R RBL 0 IAW DC9 SRM 51-30-1.