What was found
IAH - DURING C-CHECK INSPECTION, FOUND FLOOR STRUCTURE AT FIRST OFFICER'S SIDE SEAT ATTACHMENT AREA CORRODED. MAINTENANCE REMOVED AND REPLACED THE FLOOR STRUCTURE IAW ATR-42 SRM 51-25-02 AND SRM 53-17-70. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. TT: 17,634.1 HOURS. TC: 20,767. (X)