Flight Crew Last 90 Days 210; Flight Crew Total 8000; Flight Crew Type 1200
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; General Declared Emergency
Aircraft
Green Hydraulic System reservoir overheat followed ECAM and turned off PTU and Green System engine driven hydraulic pump. [We] coordinated with Dispatch and Maintenance Control. [We] obtained landing distance from Dispatch. [We] explored issues and expectations with Maintenance Control. Confirmed we could not use Green System unless overheat corrected itself. Per non normal checklist- extended landing gear (manual gear extension produced normal gear down/locked indications). Declared emergency and requested emergency equipment due to loss of nose wheel steering. Long downwind/final; normal landing. [We] stopped on runway then exited on high speed and stopped. Requested tow in from company.
Just prior to the top of descent; we received a Green Hydraulic System overheat ECAM. The Captain ran the ECAM checklists which led to turning off the Green Engine 1 pump and the PTU. The Captain; after completing the checklist; reviewed the Manual Landing Gear Extension checklist as well and briefed me on both. He then contacted Dispatch and Maintenance Control and discussed issues and options. He then briefed the flight attendants of the issue. We then extended the gear manually and made a normal landing. We cleared the runway and stopped and were then towed to the gate.
A319 flight crew reports a Green Hydraulic System overheat ECAM just prior to start of descent. ECAM actions are complied with and crew lands normally after extending the gear via gravity extension; with a tow to the gate.