What was found
IAH - DURING C-CHECK INSPECTION, FOUND RIGHT SIDE FAIL SAFE ANGLE AT FRAME 37, STR 17, CORRODED. MAINTENANCE REMOVED AND REPLACED THE FAIL SAFE ANGLE IAW ATR-42 SRM 51-25-02. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. TT: 17,852.4 HOURS. TC: 20,381. (X)