05000334/LER-1981-030-03, /03L-0:on 810309,diesel Generator 2 Would Not Restart After Being Brought to Speed & Tripping,Apparently Due to Overspeed.Caused by Failed Taper Pin & Bent Level in Governor of Diesel.Turbocharger,Taper Pin & Level Replaced

/03L-0:on 810309,diesel Generator 2 Would Not Restart After Being Brought to Speed & Tripping,Apparently Due to Overspeed.Caused by Failed Taper Pin & Bent Level in Governor of Diesel.Turbocharger,Taper Pin & Level Replaced

ML19347E009
Person / Time
Site:	Beaver Valley
Issue date:	04/06/1981
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19347E008	List: 05000334/LER-1981-030, Forwards LER 81-030/03L-0 05000334/LER-1981-030-03, /03L-0:on 810309,diesel Generator 2 Would Not Restart After Being Brought to Speed & Tripping,Apparently Due to Overspeed.Caused by Failed Taper Pin & Bent Level in Governor of Diesel.Turbocharger,Taper Pin & Level Replaced
References
LER-81-030-03L, LER-81-30-3L, NUDOCS 8104140612
Download: ML19347E009 (2)

LER-1981-030, /03L-0:on 810309,diesel Generator 2 Would Not Restart After Being Brought to Speed & Tripping,Apparently Due to Overspeed.Caused by Failed Taper Pin & Bent Level in Governor of Diesel.Turbocharger,Taper Pin & Level Replaced

Event date:
Report date:
3341981030R03 - NRC Website

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o Attachment To LER 81-30/03L Beaver Valley Power Station Duquesne Light Company Docket No. 50-334 CM Electromotive Division has proposed a modification to the Diesel Generator turbocharger. This modification consists of a stiffener on the turbocharger frame that will decrease the turbocharger's susceptibility to vibrational failure.

Beaver Valley Power Station is going to investigate these modifications as a method to increase the reliability of the diesel engines.

No correlation was drawn between the failures of the governor and turbocharger.

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