05000348/LER-1981-044-03, /03L-0:on 810610,diesel Generator 1C Declared Inoperable During Test FNP-1-STP-28.1.Caused by Overvoltage Condition Due to Damaged Voltage Regulator Circuitry Resulting from Failed Engine Running Relay

/03L-0:on 810610,diesel Generator 1C Declared Inoperable During Test FNP-1-STP-28.1.Caused by Overvoltage Condition Due to Damaged Voltage Regulator Circuitry Resulting from Failed Engine Running Relay

ML20009F647
Person / Time
Site:	Farley
Issue date:	07/07/1981
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F641	List: 05000348/LER-1981-044-03, /03L-0:on 810610,diesel Generator 1C Declared Inoperable During Test FNP-1-STP-28.1.Caused by Overvoltage Condition Due to Damaged Voltage Regulator Circuitry Resulting from Failed Engine Running Relay 05000348/LER-1981-045-03, /03L-0:on 810613,train Svc Water Loop a Declared Inoperable.Caused by Inoperable Emergency Recirculation Valve Due to Blown Control Circuit Fuse.Fuse Replaced,Valve Tested & Loop Returned to Svc on 810613 ML20009F640
References
LER-81-044-03L, LER-81-44-3L, NUDOCS 8107310378
Download: ML20009F647 (1)

LER-1981-044, /03L-0:on 810610,diesel Generator 1C Declared Inoperable During Test FNP-1-STP-28.1.Caused by Overvoltage Condition Due to Damaged Voltage Regulator Circuitry Resulting from Failed Engine Running Relay

Event date:
Report date:
3481981044R03 - NRC Website

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EVENT:

ra : ! I At 0359 on 6/10/81, while performine FNP-1-STP-28.1 (Diesel Generator 1C Operability I

Y, ; ; Test) Diesel Generator 1C was declared inoperable due to an overvoltage condition.

l l Tech. Spec. 3.8.1.1, in part, requires DG 1C to be operable.

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Following the successful completion of FNP-1-STP-28.1, DG 1C was returned to

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This is the 5th failure in the last 100 valid tests.

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