ML19323F196

LER 79-018/03X-1:on 790630,dual Position Indication for Valve HV-4153 Between Circulating Water Sys & Svc Water Sys Observed in Dual Position.Cause Not Determined.Valve Successfully Cycled.No Corrective Action Required

ML19323F196
Person / Time
Site:	Fort Saint Vrain
Issue date:	05/09/1980
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19323F187	List: ML19323F186 ML19323F196
References
LER-79-018-03X, LER-79-18-3X, NUDOCS 8005280633
Download: ML19323F196 (1)

Text

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LICENSEE EVENT REPORT (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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F 4 60 61 ET NUM8ER 68 74 75 REPCRT DATE 80 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h I o i 2 I liJith the reactor operating at approximately 1.4%, plant operations eersonnel observed I i o ; 3, j a dual position indication for HV-4153 (tie between circulating water system and ser- l l o (4 l lvice water system). Subsequent investigation revealed the valve was closed, but not l l o i s i I fully seated, and was not operable from its associated hand switch. Iecause of Final l l o is j l Safety Analysis Report references in basis . LCO 4.2.4, this is reportable under de- l I O ! 7 l l graded mode operation per Technical Specification AC 7.5.2(b)2. No accorcoanving occur 4 i o i s j l rence or probable consequences. No affect on public health or safety. I 7 8 9 80 E CODE SL8C E COMPONENT CODE SL8C E SL E 10191 7 8 lH lF lh lE lh l Blh l Vl Al Ll Vl El X]h lB lh W h 3 10 11 12 13 18 19 20

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33 06 40 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l i l o l lCause of occurrence not determined. Subsecuent attempts to evele the valve were suc- l jij,jlcessful. Investigation by Electrical and Maintenance personnel revealed that this I m lproblem was an isolated occurrence. No valve maintenance was necessarv. No further l lil3l l corrective action is anticioated or recuired. I l i 141 l l 7 8 3 80

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