Narrative:

During cruise at FL410 I noticed the oil pressure gauge was jumping between 30 psi to 55 psi. A few minutes later the right oil pressure gauge started to jump as well between 38 psi to 55 psi. Simultaneously with the right oil pressure gauge we got an electrical look up light and noticed that both 'batt 2' and 'gen 2' lights were illuminated and realized we lost generator number 2. Generator 2 gauge showed 0 while generator 1 showed a spike up-and-down between 60 amps to 300 amps. It kept fluctuating up and down for the remainder of the flight. I declared an emergency and asked for the nearest suitable airport for landing. Upon touchdown the left oil pressure gauge showed 25 psi so on the taxi in I shut it down.

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Original NASA ASRS Text

Title: The pilots of a Hawker 800 observed both engine oil pressure gauges fluctuating; and then noticed that one of the Generators had failed. They declared an emergency and diverted to a suitable airport.

Narrative: During cruise at FL410 I noticed the oil pressure gauge was jumping between 30 psi to 55 psi. A few minutes later the right oil pressure gauge started to jump as well between 38 psi to 55 psi. Simultaneously with the right oil pressure gauge we got an electrical Look Up Light and noticed that both 'BATT 2' and 'GEN 2' lights were illuminated and realized we lost generator Number 2. Generator 2 gauge showed 0 while Generator 1 showed a spike up-and-down between 60 Amps to 300 Amps. It kept fluctuating up and down for the remainder of the flight. I declared an emergency and asked for the nearest suitable airport for landing. Upon touchdown the left oil pressure gauge showed 25 psi so on the taxi in I shut it down.

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.