As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THREE HOURS INTO FLIGHT, AIRCRAFT EXPERIENCED LOSS OF GREEN SYSTEM HYDRAULIC FLUID. GREEN SYSTEM ENGINE DRIVEN PUMPS SELECTED OFF FOR THE REMAINDER OF FLIGHT. LANDING GEAR GRAVITY EXTENSION CARRIED OUT AND AIRCRAFT LANDED WITHOUT INCIDENT. LEAK IDENTIFIED AS O-RING BETWEEN HYDRAULIC RESTRICTOR AND CHECK VALVE OF GREEN SYSTEM PRESSURE IN NR 2 ENGINE PYLON AREA. O-RING REPLACED AND SYSTEM TESTS SERVICEABLE.