What was found
AT APPROX 5 HRS INTO FLIGHT, MOCC INFORMED US OF A HYD LEAK INDICATION ON #3. RAN QRH, SELECTED MANUAL ON HSC AND TURNED HYD#3 OFF. #3 HYD QUANTITY STABILIZED AT 6.1. ABOUT 3 HRS LATER MOCC REPORTED #3HYD QUANTITY OF 8.25, WITH OUR DISPLAY STILL SHOWING 6.1. ON ARRIVAL TURNED HSC BACK TO AUTO, EXTENDED GEAR NORMAL, #3 HYD QUANTITY STABILIZED AT 3.8 GEAR DOWN. UNEVENTFUL LANDING AND TAXI TO CHOCKS. PERFORMED GVI INSPECTION OF #3 ENGINE, FOUND HYDRAULIC PRESS HOSE ASSY ON LOWER (RIGHT) EDP LEAKING. COFIRMED LEAK. REMOVED AND REPLACED PRESS HOSE ASSY LINE. SVCED #3 HYDRAULICS TO FULL. PERFORMED ENG RUN, LEAK CHECK ACCOMPLISHED AND NO LEAKS NOTED. CYCLED EDP'S ON #3 ENG, CONFIMED NO LEAKS ON EITHER INDIVIDUALLY. OK FOR SVC.