05000335/LER-1981-035-03, /03L-0:on 810701,RCS Inventory Balance Indicated Unidentified Leakage Greater than 1 Gpm.Caused by Scratches on V2318.Seat Lapped & Disc,Stem & All Gaskets Replaced

/03L-0:on 810701,RCS Inventory Balance Indicated Unidentified Leakage Greater than 1 Gpm.Caused by Scratches on V2318.Seat Lapped & Disc,Stem & All Gaskets Replaced

ML20009H500
Person / Time
Site:	Saint Lucie
Issue date:	07/30/1981
From:	Pace P FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009H497	List: 05000335/LER-1981-035, Forwards LER 81-035/03L-0 05000335/LER-1981-035-03, /03L-0:on 810701,RCS Inventory Balance Indicated Unidentified Leakage Greater than 1 Gpm.Caused by Scratches on V2318.Seat Lapped & Disc,Stem & All Gaskets Replaced
References
LER-81-035-03L, LER-81-35-3L, NUDOCS 8108100189
Download: ML20009H500 (1)

LER-1981-035, /03L-0:on 810701,RCS Inventory Balance Indicated Unidentified Leakage Greater than 1 Gpm.Caused by Scratches on V2318.Seat Lapped & Disc,Stem & All Gaskets Replaced

Event date:
Report date:
3351981035R03 - NRC Website

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=cC< st Nunes sa de 6a avINr34r5 84 2s AaroAt34T4 Jo IVENT CISCRIPfl0% AND PROS ASLE CONSECu1NCES O'o f7Til iDuring 100% power operation, an RCS inventory balance indicated l unidentified leakage greater than 1 gpm.1C charging pumo was operating, o 2 13: 41 [1A and IB pumps were isolated to isolate the leak. V2318(1B charging i pt:n suction relief)was found to be the source of the leak. The o

lo is i 11eakage was CVCS leakage and not RCS Icakage. Action was taken in 8 Iaccordance with T.S.3.1.2.4 and 1A pump was returned to service in 2 ioia ; i hours and 10 minutes. This is the first LER o'f this type.

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i.[2i i The relief valve was tested at 150 lbs and was placed back into service.

i, i : i l V2318(Crosby, bx1", model-JRS-SP, type-E, class-2 relief valve) has m I operated normally since its repair.

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