Narrative:

About 20 mins from ZZZ at FL300; our left generator tripped off. Following company checklist; we attempted to start APU with no luck. Several more attempts were made at different altitudes. With only 1 generator; we decided to declare an emergency and requested direct ZZZ. At 10000 ft; we were finally able to start APU and told approach we'd like to cancel emergency status. We landed without incidence.

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Original NASA ASRS Text

Title: MD80 FLT CREW AT FL300 HAS LEFT GENERATOR TRIP OFFLINE; THEY DECLARED AN EMERGENCY UNTIL SUCCESSFULLY STARTING THE APU AT 10;000 FT.

Narrative: ABOUT 20 MINS FROM ZZZ AT FL300; OUR L GENERATOR TRIPPED OFF. FOLLOWING COMPANY CHKLIST; WE ATTEMPTED TO START APU WITH NO LUCK. SEVERAL MORE ATTEMPTS WERE MADE AT DIFFERENT ALTS. WITH ONLY 1 GENERATOR; WE DECIDED TO DECLARE AN EMER AND REQUESTED DIRECT ZZZ. AT 10000 FT; WE WERE FINALLY ABLE TO START APU AND TOLD APCH WE'D LIKE TO CANCEL EMER STATUS. WE LANDED WITHOUT INCIDENCE.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.