ML19326D973

LER 80-049/01T-0:on 800718,during Investigation Per IE Bulletin 79-14,determined That Support on Component Cooling Water Supply Line to 1A Residual Heat Removal Heat Exchanger Has High Probability of Failure During Seismic Event

ML19326D973
Person / Time
Site:	Beaver Valley
Issue date:	07/21/1980
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19326D967	List: ML19326D966 ML19326D973 ML19326D978
References
IEB-79-14, LER-80-049-01T, LER-80-49-1T, NUDOCS 8007250324
Download: ML19326D973 (1)

Text

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R(PORT Q ATE 80 7 4 60 61 DOCn ET NLMBER 64 69 EVENT CATE EVENT CESCRIPTION ANO PACSASLE CONSEQUENCES h l o l 21 1 We have determined that a support on the component cooline water supolv line to the l Io lai l lA Residual Heat Removal Heat Exchanger has a high probability of failure during a l Io Iei I seismic event. Failure of this hanger could cause loss of coolina water to the "A " l

("5"TTl I RHR train. A break at this location would be isolated by the containment isolation l l 016 l l Valves. The "B" train would be operable. The consecuences would be minimal due to 1 i o ,7 l l the availability of the "B" train. I I

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