05000334/LER-1980-029-03, /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

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/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:
References
LER-80-029-03L, LER-80-29-3L, NUDOCS 8005140544
Download: ML19323C026 (2)


LER-1980-029, /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
Event date:
Report date:
3341980029R03 - NRC Website

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4 60 65 coCKET NUM8ER t,d 69 EVENT oATE le 75 REPORT oATE 40 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)l 80 7

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.there is no safety significance.

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