05000368/LER-1979-063-03, /03L-0:on 790806,containment Atmosphere Sample Reactor Bldg Penetration Outside Isolation Valve 2SV-8263-2 Would Not Indicate Closed During Stroke Test.Caused by Limit Switch Being Out of Adjustment.Limit Adjusted

/03L-0:on 790806,containment Atmosphere Sample Reactor Bldg Penetration Outside Isolation Valve 2SV-8263-2 Would Not Indicate Closed During Stroke Test.Caused by Limit Switch Being Out of Adjustment.Limit Adjusted

ML19208A739
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/31/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19208A735	List: 05000368/LER-1979-063-03, /03L-0:on 790806,containment Atmosphere Sample Reactor Bldg Penetration Outside Isolation Valve 2SV-8263-2 Would Not Indicate Closed During Stroke Test.Caused by Limit Switch Being Out of Adjustment.Limit Adjusted 05000368/LER-1979-065-03, /03L-0:on 790809,battery Charger 2D31 Failed, Rendering Dc Bus a Inoperable.Caused by Dc Output Lamp Socket Burning Up Due to Higher Voltage & Increased Resistance in Circuit.Unit Cleaned ML19208A734
References
LER-79-063-03L, LER-79-63-3L, NUDOCS 7909170395
Download: ML19208A739 (1)

LER-1979-063, /03L-0:on 790806,containment Atmosphere Sample Reactor Bldg Penetration Outside Isolation Valve 2SV-8263-2 Would Not Indicate Closed During Stroke Test.Caused by Limit Switch Being Out of Adjustment.Limit Adjusted

Event date:
Report date:
3681979063R03 - NRC Website

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EVENT DATE 28 M PON1 O ATE PC EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES b10 o

2 I During Mode 1 operation, the Cohtainment Atmosphere Sample Reactor 1 Building penetration outside isolation valve, 2SV-8263-2, would not i

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lindicate closed during a stroke test.

The inside valve, 2SV-8265-1, at i

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e!s IPenetration 2P58, was verified operable. This occurrence is similar to i

e o i LER 50-368/79-044,79-060, and 79-061.

a i,! i 0ccurrence is reportable per T.S.6.9.1.9.b.

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The valve was returned to service in less than two hours, I meeting the requirement of Action Statement T.S.3.6.la.

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