MD-80 Series (DC-9-80) Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport
Aircraft; Procedure
After taking off and climbing through flight level 180 L CSD PRESS LOW and L GEN OFF LIGHT came on simultaneously. First Officer (FO) started the CSD PRESS LOW checklist in the QRH. We followed the checklist which led to L CSD disconnect because of high outlet and rise temps; and no voltage and frequency. We were dispatched with the APU INOP and now down to one generator. We advised ATC and returned without incident. We landed under max landing weight.
[Report narrative provided no additional information.]
MD80 flight crew reported being dispatched with an inoperative APU then lost the left generator due to loss of CSD oil. Flight returned to the departure airport.