05000305/LER-1982-012

LER 82-012/03L-0:on 820512,mainsteam Header 1A,isolation valve,MS-1A,exceeded Tech Spec Closure Time.Caused by Valve Being Closed & Dry Since Start of Cold Shutdown.Shaft Cleaned & Lubricated Externally

ML20054F772
Person / Time
Site:	Kewaunee
Issue date:	06/11/1982
From:	Bernhoft S WISCONSIN PUBLIC SERVICE CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20054F765	List: 05000305/LER-1982-010, Forwards Updated LER 82-010/03X-1 & LERs 82-012/03L-0 & 82-013/01T-0 05000305/LER-1982-012 05000305/LER-1982-013
References
LER-82-012-03L, LER-82-12-3L, NUDOCS 8206170308
Download: ML20054F772 (1)

LER-2082-012,

Event date:
Report date:
3052082012R00 - NRC Website

text

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LICENSEE EVENT REPORT O

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) fo l18 l9 l W LICEP45EE l I l KCOOL l N l P l 1 l@l 0 l 0 l LIGEN:'E I4 lb

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EVENT DESCR PTION A JD PROBA EC JS NCES

[o l 3 l l During a refueling shutdown, mainsteam header, lA, isolation valve, MS-1A, was found in excesq

.g j of Technical Specification 4.7, closure time specification, during testing. This event is l

-o [ 4 l l reportable per 6.9.2.b.1, an ESF setting found to be less conservative than Technical Speci- l o [ ., i lfication. It should be noted that during hot plant operations the valve is designed to l o g ; l receive a steam assist in clos'ing and would have in alllikelihood closed well within Techni- l

,g [ cal Specification and Safety Analysis time limits. Since the plant was in a cold shutdown l o ,g ; ; condition, there was no ef fect on public s'afety or plant operation. l S Y S T E =.t CAUSE ~ CAUS$ CoVP VALVE CODE CODE 'SUBCoDE COMPONENT CODE SU8 CODE SUBCODE

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,,,, SE QUENTI AL OCCURRENCE REPGRT REVISloN LER AO (VENTV!aR R EP0HT 43. CODE. TYPE No.

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1AKEN A;ilO!. 0% PLA?.T VITHOO rioVRS SLSMITTED FORM .,UB. 3LPPUER MANUFACTUR14

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. CAUSE DESCRIPTION AND CO,ARECTIVE ACTIONS 1101 [ Slow closure time was attributed to the valve having been closed and essentially dry, [

ii li l l since the start of cold shutdown. The shaft was cleaned and lubricated externally. I

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, 7 l The valve was tested within Technical Specification limits per SP 06-103. No further I i 3 l action is required at this time. l i 4 1 I i 8 9 80 STI $ *.Pow E R oTHE R STATUS DISCO RY DISCOVERY oESCRiPTION i 5 l H l@ l 0 l 0 l 0 l@l NA l lBl@l Surveillance Testina l

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i Loss or on OAuAGE Ti> F ACILt TV

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S. L. Bernhoft pgnyt (414) 388-25 60 Ext. 352 y NAa.'E cr rntranEn _