As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A C-CHECK IN BNA, THE LEFT AND RIGHT SEAT TRACKS ON THE TOP AND BOTTOM BETWEEN FS 36 TO FS 39 WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT AND RIGHT SEAT TRACKS BETWEEN FS 36 TO FS 39 IAW SRM 51-25-02 AND 51-25-04. (M)