B757 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 48; Flight Crew Total 4677; Flight Crew Type 3208
Aircraft Equipment Problem Critical
Air Traffic Control Issued New Clearance; Flight Crew Diverted; Flight Crew Landed As Precaution; Flight Crew Requested ATC Assistance / Clarification
Aircraft
During cruise we were getting a repeated issue where the control column would move slightly and cause the airplane to feel like it went through a bump of rough air. Then multiple times we had the screens flash momentarily and the auto throttle disconnected. Each time it would correct itself and everything worked normally. Eventually when this happened we got the L Gen Off light. We ran the QRH and the generator reset. Then it happened again but the QRH only allows one reset. Due to our APU being MELed we were then down to one generator. The QRH requires us to divert to the nearest suitable airport; so we [requested ATC assistance] and diverted to [a suitable alternate]. The descent and landing were normal on one generator.
B757 First Officer reported diverting to a suitable alternate after loss of a generator put them into a single generator operation.