What was found
(CAN) DURING FLIGHT ECAM CAUTION OF LOW GREEN HYDRAULIC LEVEL, BOTH ENGINE DRIVEN PUMPS SHUTOFF AND AIRCRAFT PROCEEDED TO DESTINATION AS MOST VIABLE ALTERNATIVE.FOUND THE RT ENGINE HYDRAULIC PUMP PRESSURE DAMPENER, LINE LOSS AND O-RING WAS DEFORMED AND EXTRUDED FROM ITS POSITION CAUSING THE HYDRAULIC LEAK. O-RING REPLACED AND LINE TIGHTEN, LEAK RUN CARRIED OUT, NO FURTHER LEAK NOTICED, AIRCRAFT DISPATCHED FOR RETURN FLIGHT.