A dhc-8-200 advisory panel alerted left AC gen and left tru so the checklist was completed which inc...

Narrative:

While at FL210 we had a few caution lights go off in the advisory panel; including the left AC gen and left tru. Also the cabin pressurization lights and the fuel tank/temp flickered up and down rapidly. As the pilot flying; I called for the left AC gen checklist and the pilot monitoring followed through with the procedures on the book. The checklist directed the left AC gen to be turned off; this stopped the flickering of the gauges. The engines gauges were normal the entire time. As there was bad weather in the vicinity; we decided it was best to divert to the nearest airport. An emergency was declared and we landed safely without any further due incident.

Original NASA ASRS Text

Title: A DHC-8-200 advisory panel alerted L AC GEN and L TRU so the checklist was completed which included selecting the L GEN OFF. Then; because of weather conditions; an emergency was declared and the flight diverted to a nearby airport.

Narrative: While at FL210 we had a few caution lights go off in the advisory panel; including the L AC GEN and L TRU. Also the cabin pressurization lights and the fuel tank/temp flickered up and down rapidly. As the Pilot Flying; I called for the L AC GEN checklist and the Pilot Monitoring followed through with the procedures on the book. The checklist directed the L AC GEN to be turned off; this stopped the flickering of the gauges. The engines gauges were normal the entire time. As there was bad weather in the vicinity; we decided it was best to divert to the nearest airport. An emergency was declared and we landed safely without any further due incident.

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.

Attributes
ACN	1111751
Time
Date	201308
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Make Model Name	Dash 8-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	AC Generator/Alternator
Person 1
Function	First Officer Pilot Flying
Events
Anomaly	Aircraft Equipment Problem Critical

A dhc-8-200 advisory panel alerted left AC gen and left tru so the checklist was completed which included selecting the left gen off. Then; because of weather conditions; an emergency was declared and the flight diverted to a nearby airport.