A MD80 right generator failed in flight and the AC crosstie lockout prevented the right bus from bei...

Narrative:

We were level at FL300. The first officer was flying and the autopilot and autothrottles were engaged. Simultaneously and unexpectedly; the AC crosstie lockout light illuminated with the failure of the right engine generator; along with all the associated aural and visual warnings. We declared an emergency while following the QRH AC crosstie lockout light checklist and began a descent. We attempted an unsuccessful reset of the right engine generator. We also attempted to start the APU; which was unsuccessful at that time. With only the left engine generator operating and no battery charger; we diverted to a nearby airport. The APU eventually started when we reached the lower altitudes and we were able to successfully power the right AC bus prior to landing. The remainder of the flight and the landing was uneventful.

Original NASA ASRS Text

Title: A MD80 right generator failed in flight and the AC Crosstie Lockout prevented the right bus from being powered. The APU would not start so an emergency was declared and the flight diverted to a nearby airport.

Narrative: We were level at FL300. The First Officer was flying and the autopilot and autothrottles were engaged. Simultaneously and unexpectedly; the AC Crosstie Lockout light illuminated with the failure of the right engine generator; along with all the associated aural and visual warnings. We declared an emergency while following the QRH AC Crosstie Lockout Light checklist and began a descent. We attempted an unsuccessful reset of the right engine generator. We also attempted to start the APU; which was unsuccessful at that time. With only the left engine generator operating and no battery charger; we diverted to a nearby airport. The APU eventually started when we reached the lower altitudes and we were able to successfully power the right AC bus prior to landing. The remainder of the flight and the landing was uneventful.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	932053
Time
Date	201102
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Electrical Distribution Busbar
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Events
Anomaly	Aircraft Equipment Problem Critical

A MD80 right generator failed in flight and the AC crosstie lockout prevented the right bus from being powered. The APU would not start so an emergency was declared and the flight diverted to a nearby airport.