05000366/LER-1980-009-03, /03L-0:on 800130,while Performing Procedure HNP-2-33-3,HPCI Min Flow Valve 2E41-F012 Failed to Close. Caused by Sticking Switch Contacts on Flow Switch 2E41-N006. Switch Contacts Cleaned & Procedure HNP-2-3303 Performed

/03L-0:on 800130,while Performing Procedure HNP-2-33-3,HPCI Min Flow Valve 2E41-F012 Failed to Close. Caused by Sticking Switch Contacts on Flow Switch 2E41-N006. Switch Contacts Cleaned & Procedure HNP-2-3303 Performed

ML19290D649
Person / Time
Site:	Hatch
Issue date:	02/12/1980
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19290D646	List: 05000366/LER-1980-009, Forwards LER 80-009/03L-0 05000366/LER-1980-009-03, /03L-0:on 800130,while Performing Procedure HNP-2-33-3,HPCI Min Flow Valve 2E41-F012 Failed to Close. Caused by Sticking Switch Contacts on Flow Switch 2E41-N006. Switch Contacts Cleaned & Procedure HNP-2-3303 Performed
References
LER-80-009-03L-01, LER-80-9-3L-1, NUDOCS 8002220454
Download: ML19290D649 (2)

LER-1980-009, /03L-0:on 800130,while Performing Procedure HNP-2-33-3,HPCI Min Flow Valve 2E41-F012 Failed to Close. Caused by Sticking Switch Contacts on Flow Switch 2E41-N006. Switch Contacts Cleaned & Procedure HNP-2-3303 Performed

Event date:
Report date:
3661980009R03 - NRC Website

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REPORT CAT E 80 EVENT DESCRIPTIO?t AND PROO ADLE. CONSEO'JENCES h o

2 l With the reactor in the run modn, while performing Procedure llNP-2-3303, l

o a 1 ilNPI Pump Operability, the llPCI Minimum Flow Valve, 2E41-F012, failed l

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RCIC, ADS, CSS and LPCI were operabic per Technical Specifi-l TJq cations 3/4 5.1 Action A. There we re no effects to public health and e gc

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Safe plant operation was not affected.

This is not a repeti-l 0 7 l tiVO event.

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40 di 42 43 44 47 CAUSE DESCRIPTION AND CORRECilVE ACTIONS h l The cause of the occurrence was sticking switch contacts on flou i

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procedure llNP-2-3303 was then performed satsifactorily.

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NARRATIVE

REPORT Ccorgia Power Company Plant E. 1. Hatch llaxley, Georgia 31513 Reportable Occurrence Report No. 50-366/1980-09.

On Janaury 30, 1980, with the reactor in the run mode, while performing procedure IINP-2-3303,llPCI Pump Operability, the llPCI' Minimum Flow Valve,

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- o -2E41-F012, failed to close when required.

RCIC, ADS, CSS and LPCI were operable per Technical Specifications 3/4 5.1 Action a.

The cause of the occurrence was sticking switch contacts on flow switch 2E41.-N006.

The switch contacts were cleaned and procedure llNP-2-3303 was s:atisf actorily

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performed. This is not a repetitive event.

Plant E.

I. II:nch, l' nit I, experienced a nimilar event on May 5, 1976, Ref. LER 50-321/1976-038. The follow-up investigation did nor reveal any generic problems; of this nature.

wi th any instruments of the same model and manuf acturer. Cr.ntinued safe plant operation was not affected, k.

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