What was found
IAH - DURING C-CHECK INSPECTION, THE LEFT INBOARD SEAT TRACK WAS FOUND TO BE CORRODED FROM FRAME 34.5 TO FRAME 36. MAINTENANCE REMOVED AND REPLACED THE AFFECTED SECTION OF SEAT TRACK IAW ATR42-320 SRM 51-25-40, AND 51-25-02, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)