ML19323C026

LER 80-029/03L-0:on 800409,during Performance of Containment Isolation Check Valves Test,Found Safety Injection Accumulator Fill Line Check Valve Opened Beyond Limits of Tech Spec.Cause Under Investigation

ML19323C026
Person / Time
Site:	Beaver Valley
Issue date:	05/06/1980
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19323C022	List: ML19323C021 ML19323C026
References
LER-80-029-03L, LER-80-29-3L, NUDOCS 8005140544
Download: ML19323C026 (2)

Text

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• U. S. NUCLEA2 RECUtAro2Y COMMISSION ,

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REPORT oATE I 4 60 65 coCKET NUM8ER t,d 69 EVENT oATE le EVENT DESCRIPr 0N AND PROBA8LE CONSEQUENCES h o 2 l During performance of BVT 1.1 - 1.47.3, " Containment Isolation Check Valves Test", I ioi3i i the following check valve was found to have an opening pressu.e outside of the l 17771 l limits established in Technical Specification Surveillance 4.6.3.1.2.e of 2.1.2 to l ITTT1 1 6.0 psid: sa fety injection Ace mulator Fill Line Check Valve {1SI-42] opened at l o 6 1 0.6 osid. An Encineerine Memorandum has been written to investicate modificatiens l p"'JTl l to the valve. The isolation valve outside containment [15I-41] is normally shut and[

io is i l only opened administrative 1y to fill accumulators: therefore,(continued on attached)l80 7 8 9

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44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS

• li lo l l The cause of the failure of this valve and the corrective actions needed are l.

lilii l presentiv under investigation. Any corrective action and further problems with thist g l valve will be noted in a follow-up report. l l

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412-643-1258 2, NAME OF PREPAR$ A

l Attachment To LER 80-29/03L Beaver Valley Power Station Duquesne Light Company Docket No. 50-334 .

Event Description And Probable Consequences (continued) there is no safety significance.

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