B757 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 180; Flight Crew Total 11500; Flight Crew Type 1000
Aircraft Equipment Problem Critical
Air Traffic Control Issued New Clearance; Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport; General Declared Emergency
Aircraft
At cruise FL340 on ETOPS flight; left generator control off light illuminated. As per QRH; started APU and disconnected left engine generator. Established phone patch with Dispatch and Maintenance. Was advised we were good to continue. About 30 minutes later; APU fault light illuminated and APU shutdown. As per QRH APU was INOP and we declared an emergency and requested a clearance from ATC to divert. Got another phone patch with dispatch advising them of our situation and returned. Landing was uneventful.
B757 Captain experiences a generator failure enroute and the APU is started to take its place. Thirty minutes later the APU shuts down and an emergency is declared. Flight returns to departure airport.