What was found
(CAN) WHILE AT BASE THE AIRCRAFT WAS NOTICED TO HAVE A HYDRAULIC LEAK FORM THE R/H MLG RETRACTION ACTUATOR AREA. AFTER INSPECTION IT WAS DISCOVERED THAT THE LEAK WAS FROM THE GEAR UP RETRACTION LINE. AN EXHAUST FLANGE HAD CONTACTED THE LINE AND WORE THROUGH. THE LINE HAS BEEN REPLACED, EXHAUST REPOSITIONED, AND THE AIRCRAFT RETURNED TO SERVICE. A/C HOURS: 21007 A/C CYCLES: 16881 PART NAME: TUBE ASSY.