Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Troubleshooting
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Loss Of Aircraft Control
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Overcame Equipment Problem; General Maintenance Action
Aircraft
On climb out; hydraulic green system low quantity. Complied with ECAM and QRH and secured green system hydraulic pumps. [Requested priority handling]. During cruise; green quantity continued to decrease to zero. Completed follow-on procedures for L/G gravity extension. Uneventful landing ZZZ Runway XXR. Gear pinned on runway and towed to gate. Emergency ground crew observed hydraulic fluid on right wing and right main landing gear upon shutdown on runway.
The crew got low hyd pres & quantity on the green system. Loss of nose wheel steering. Company ATC and Maintenance Control coordinated the tug and arrival for the flight.
A300 flight crew reported loss of Green Hydraulic System on climb out and returned to departure airport.