ML19208A739

LER 79-063/03L-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

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: ML19208A734 ML19208A739 ML19208A750 ML19208A757
References
LER-79-063-03L, LER-79-63-3L, NUDOCS 7909170395
Download: ML19208A739 (1)

Text

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28 60 6' DOCnET NUvSER td 6 EVENT DATE M PON1 O ATE PC EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES b10 o 2 I During Mode 1 operation, the Cohtainment Atmosphere Sample Reactor ,

o a 1 Building penetration outside isolation valve, 2SV-8263-2, would not i o 4 lindicate closed during a stroke test. The inside valve, 2SV-8265-1, at i 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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. L IInvestigation revealed that the limit switch was out of adjustment. The ,

ii , ilimit was adjusted and the valve was proven operable per T.S.4.6.3.1.1, ,

i Table 3.6-1. The valve was returned to service in less than two hours, ,

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