What was found
IAH - DURING C-CHECK INSPECTION, FOUND INTERCOSTAL AT STRINGER 17 RIGHT, CORRODED BETWEEN FRAMES 36 AND 37. MAINTENANCE REMOVED AND REPLACED THE INTERCOSTAL IN REFERENCE TO ATR-42 SRM 51-25-01 (02, 04) AND 51-21-52. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)