A300
Flight Crew Last 90 Days 38; Flight Crew Total 6000; Flight Crew Type 1208
Distraction; Troubleshooting
Aircraft Equipment Problem Critical
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Returned To Departure Airport; Flight Crew Landed in Emergency Condition; General Declared Emergency
Aircraft
Upon gear retraction received HYD. LO PRESS 2 on the ECAM. While the Captain worked the problem [we] received second LO HYD pressure ECAM. Noticed both green hydraulic level indicators were zero. Captain took over flying duties and I completed the checklist. Emergency was declared and we returned to the departure airport for landing.
About 800 feet on takeoff we got a Green Pump 2 LO PR light on the ECAM and on the overhead panel. We decided to continue our takeoff duties and will handle that when duties slowed down. In the meantime the light went out on its own. About 6;000 feet the same lights came back on and remained on. So we followed the ECAM and turned off the number 2 Green Pump. Very soon the Green Pump 1 LO PR light on the ECAM came on with the associated overhead light. We turned that one off too and realized the Green System Fluid Level needle was all the way to the left indicating empty. The ECAM confirmed 0 fluid in the Green System. We contacted the company and returned to [the departure airport]. We manually lowered the gear as directed by the checklist. On final we noticed that the Green System Fluid Level had come back up to about half full on the dial on the overhead and on the ECAM. Landed normally. Since no nose wheel steering was available we got tugged back to the ramp.
An A300 crew reported a Green Pump 2 LO PR ECAM after takeoff which self cleared then re-alerted at about 6;000 feet when the crew also discovered the GREEN HYD system reservoir empty so the QRH was completed; an emergency declared; and flight returned to the departure airport.