As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK, HYD GREEN RESERVOIR LOW LEVEL ECAM IN FLIGHT. 54COMPLETED ECAM, VOL II PROCEDURES AND GRAVITY LANDING GEAR EXTENSION PROCEDURE. PILOT REPORT EMERGENCY DECLARED. R & R LT MLG GEAR DOOR ACTUATOR FLEXIBLE HYD LINE. REF AMM 32-12-00-991-015. PERFORM OPS AND LEAK TEST OF THE GREEN HYD SYS REF AMM 29-11-00-710-001. OPS NORMAL, NO LEAK PLACE THE ACFT TO NORMAL CONFIGURATION REF AMM 32-00-00-860-003.