ML19261B619

LER 79-010/03L-0 on 790124:pump Discharge valve,2CV-5667-2, Stroked Fully Open But Immediately Reclosed.Caused by sodium-hydroxide Tank Low Level Alarm & Indication Circuit Being Out of Alignment

ML19261B619
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/22/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19261B616	List: ML19261B615 ML19261B619 ML19261B622
References
LER-79-010-03L, LER-79-10-3L, NUDOCS 7902280289
Download: ML19261B619 (1)

Text

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RC FORM 366 17 77)

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7 8 60 61 DOCLET NUMBER EVENT DATE 74 75 HEPOH1 JATE 80 EVENT DESCRIPTION AND PROS ADLE CONSEQUENCES h o 2 lDuring Power Escalation Testing, Mode 1 operation, while performing the ,

o13 1reu*4ne curveillance test of the "B" train Sodium Hydroxide Addition l o 4 l System , the pump discharge valve, 2CV-5667-2, stroked fully open, but ,

in Isl I un a i ,+ nl y -re-1 m nd . The redundant train was available. There have l l o 161 1 been no similar occurrences. Reportable per T.S.6.9.1.9 (b) . g a 7 I l

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CAUSE DESCR# TION AND CORREC rlVE ACTIONS h i O lInvestication revealed that the valve reclosed due to the Sodium Hydrox-l liIijlide Tank Low level alarm and indication circuit out of alignment. It l i 171 I me e lim od. operationally tested, and returned to service within l 3 l six hours. The recuirements of Action Statement T.S.3.6.2.2 were met. ,

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PLilLlCI T Y W 15',L E ' LE5C A PTION "C IISI (Nd L Y l !I ll llllll ll l 7 8 9 to ,3 . g N AVE CF PAEPAHER Chris N. Shively , 501/968-2519 7902280GLgg