What was found
PDIS 733 29-02 5545 06JAN22 IND OPEN U ON CLIMB OUT, HYDRAULIC GREEN SYSTEM LOW QUANTITY. COMPLIED WITH ECAM AND QRH AND SECURED GREEN SYSTEM HYDRAULIC PUMPS. DECLARED EMERGENCY. DURING CRUISE, GREEN QUANTITY CONTINUED TO DECREASE TO ZERO. COMPLETED FOLLOW-ON PROCEDURES FOR L/G GRAVITY EXTENSION. UNEVENTFUL LANDING KIND RWY 23R. GEAR PINNED ON RUNWAY AND TOWED TO GATE. EMERGENCY GROUND CREW OBSERVED HYDRAULIC FLUID ON RIGHT WING AND RIGHT MLG UPON SHUTDOWN ON RUNWAY. PRESSURIZED GREEN SYSTEM HYDRAULICS, FOUND ELECTROHYDRAULIC VALVE LEAKING IN WHEEL WELL IPC 32-31-03-21 ITEM 120 AT T-FITTING ITEM 90 . REPLACED ORING AT VALVE 3GA REF AMM 32-31-12-04 THROUGH STEP 2.D. LEAK CHECK GOOD. READY FOR OPS CHECK STEP 3.E. FACT 07JAN22 02:30 IND JACKED AIRCRAFT AND PERFORMED NORMAL GEAR RETRACTION AND EXTENSION REF A300-600 M/M 07-11-00-00, 32-31-00-05. OPS / LEAK CHECKED GOOD, NO DEFECTS NOTED AT THIS TIME. A/C OK FOR SERVICE.