What was found
(CAN) DURING INSPECTION FUEL WAS DISCOVERED COMING FROM THE RT GCU PANEL. FURTHER INSPECTION REVEALED THAT THE LINE WAS LEAKING .5 WAY DOWN THE LINE BEHIND THE GCU. THE LINE WAS REPLACED AND ACFT RETURNED TO SERVICE. THE LINE WAS MFG IN 1998. WITHIN THE MONTH THIS IS THE 2ND SUCH LINE REPLACED FOR THE SAME REASON AND YEAR OF MFG. THE FLEET IS NOW BEING INSPECTED FOR SIMILAR LEAKS AND MFG DATES.