As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF, THE FLIGHT CREW RECEIVED AN ECAM GREEN HYD LOW PRESSURE INDICATION. THE F/O WAS FLYING AND GEAR WAS UP CLIMB THRUST WAS SET AND FLAPS WERE UP. ECAM ACTIONS WERE COMPLETED AND THE FLIGHT RETURNED TO AIRPORT OF DEPARTURE.