A md-82 left generator failure at cruise opened the AC crosstie lockout causing the left bus to drop...

Attributes
ACN	1034652
Time
Date	201209
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	MD-82
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	VFR
Component
Aircraft Component	AC Generator/Alternator
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 14000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

En route; FL330; left generator off light illuminated; AC crosstie lockout light illuminated. Loss of autopilot; autothrottles; and transponder fail. Center queried about loss of transponder. Captain declared emergency condition. [We] eventually descended to FL270 to exit rvsm airspace. Left generator would not reset. Complied with QRH and used APU generator to power left bus. Resumed normal flight and ended our emergency status. [We] continued to our destination for normal landing. [We] pulled cvr circuit breaker in compliance with QRH emergency/abnormal procedure.

Original NASA ASRS Text

Title: A MD-82 left generator failure at cruise opened the AC CROSSTIE LOCKOUT causing the left bus to drop off so the APU was started and put on the bus. With systems normal; the emergency was canceled.

Narrative: En route; FL330; left generator OFF light illuminated; AC CROSSTIE lockout light illuminated. Loss of autopilot; autothrottles; and transponder FAIL. Center queried about loss of transponder. Captain declared emergency condition. [We] eventually descended to FL270 to exit RVSM airspace. Left generator would not reset. Complied with QRH and used APU Generator to power left bus. Resumed normal flight and ended our emergency status. [We] continued to our destination for normal landing. [We] pulled CVR Circuit Breaker in compliance with QRH Emergency/Abnormal procedure.

Data retrieved from NASA's ASRS site as of July 2013 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.

A md-82 left generator failure at cruise opened the AC crosstie lockout causing the left bus to drop off so the APU was started and put on the bus. With systems normal; the emergency was canceled.