05000366/LER-1981-012-02, /02L-0:on 810224,during Surveillance Testing, Standby Liquid Control Pump B Failed to Start,Losing Squibb Valve B Continuity.Caused by Failure of Control Fuse in Circuit Breaker.Fuse Replaced

/02L-0:on 810224,during Surveillance Testing, Standby Liquid Control Pump B Failed to Start,Losing Squibb Valve B Continuity.Caused by Failure of Control Fuse in Circuit Breaker.Fuse Replaced

ML19350A743
Person / Time
Site:	Hatch
Issue date:	03/12/1981
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19350A740	List: 05000366/LER-1981-012, Forwards LER 81-012/02L-0 05000366/LER-1981-012-02, /02L-0:on 810224,during Surveillance Testing, Standby Liquid Control Pump B Failed to Start,Losing Squibb Valve B Continuity.Caused by Failure of Control Fuse in Circuit Breaker.Fuse Replaced
References
LER-81-012-02L, LER-81-12-2L, NUDOCS 8103160740
Download: ML19350A743 (2)

LER-1981-012, /02L-0:on 810224,during Surveillance Testing, Standby Liquid Control Pump B Failed to Start,Losing Squibb Valve B Continuity.Caused by Failure of Control Fuse in Circuit Breaker.Fuse Replaced

Event date:
Report date:
3661981012R02 - NRC Website

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LICENSEE EVENT REPORT a

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CONTROL CL OCK: l l

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8 60 61 DOOKET NUMBER 68 69 EVENT DATE 74 75 RE PORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h a 2 l During steady state power operation on February 24, 1981, while performing

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failed to start and continuity on the "B" Squibb valve was lost.

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9 O s l Spec 3.1.5 requires both pumps and explosive valves to be operable. This

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[O ls i l is a non-repetitive occurrence and there were no effects to public health l

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l 34 35 36 31 40 41 42 43 44 47 33 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h

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b' i i i during surveillance testing. Within one-half hour of the discovery the I

r i 2 l fuse had been replaced and the "B" SBLC Pump and Squibb Valve were I

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LER NO.: 50-366/1981-012

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Licensee Georgia Power Company Facility Name: Edwin I. Hatch Docket No. : 50-366

Narrative

Report for LER 50-366/1981-012.

During steady state power operation on February 24, 1981, while performing Standby Liquid Control Pumps Operability Test, HNP-2-3702, the "B" Standby Liquid Control Pump, 2C41-C0013, failed to function properly and pow. r was not available to "B" explosive Squibb Valve, 2C41-F0048.

Tech S,ecs 3.1.5 require both SBLC Pumps and Squibb Valves to be operable.

This is not a repetitive event and there were no effects to public health and safety due to this event.

The cause of the event was the control fuse in the circuit breaker failed during surveillance testing. Within one-half hour of the discovery, the fuse was replaced and the "B" SBLC Pump and $quibb Valve returned to service.

Further investigation revealed no generic problem.

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