As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1774, LAX-EWR. (AIRCRAFT PERFORMED AN AIR TURN BACK TO LAX AND DECLARED AN EMERGENCY) 'GREEN HYD LOW LEVEL ECAM ON CLIMB OUT; FOUND FITTING ON ELECTRO VALVE LEAKING NEXT TO FILTER HOUSING SPLIT O-RING. REPLACED O-RING ON ELECTRO VALVE OPERATED FLIGHT CONTROLS NUMEROUS TIMES RAN #1 ENG 3 TIMES NO LEAKS NOTED SERVICED HYD TO NORM OPERATING LVL FLUID STAYED THE SAME. 27-34-07 RAN ENG PER 71-00-00.'