What was found
IAH - DURING C-CHECK INSPECTION, THE CARGO DOOR WAS FOUND TO HAVE A CRACKED FRAME. THE AFFECTED FRAME WAS REPAIRED USING A DOUBLER REPAIR IAW THE ATR 42-320 SRM 51-25-04, 51-21-28, AND 51-70-00. THE AIRCRAFT WAS THEN APPROVED FOR RETURN TO SERVICE. (M)