ML19225A036

LER 79-042/03L-0 on 790625:during Local Leak Rate Testing, Standby Liquid Control Inboard Containment Isolation Valve C41-F007 Was Leaking Excessively.Caused by Scratch on Valve Seat.Seat Lapped & Successfully Tested

ML19225A036
Person / Time
Site:	Hatch
Issue date:	07/10/1979
From:	Thomas Greene GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19225A035	List: ML19225A034 ML19225A036
References
LER-79-042-03L, LER-79-42-3L, NUDOCS 7907170209
Download: ML19225A036 (2)

Text

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J_H] [ P:*rire f W [erfomnco of local Leak Ibte Testing uhile shutdo.sn for refuelino, 1 ojlJ L Standby 1.iquid Control in5aard centairr cnt isolation valve C41 -F007 was fourd to be j oTTl L_leakino in excess of speci .'ied criteria.

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EE] l TFn cause of the unaccontable leak rete value for valve C41-F007 was due to a scratch j In l li 11J L en the valvo seat _appgrently caused by the valve closino on a pieco of debris.

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Georgia Pc'.-ler Co pany I'lan t E. I. lhich Baxley, Georgia 31513 Cause Descriptica and Corfective Actions (continued) the overall leak..ge acu;ptance criteria of .50.fa as stated in 4 ~ A 2 Ihe ha found leikageTorCil-F007hasbeenrccordedand'.lillberbpbted

' Leak P.3te t eport required by Appendix J of 10CFR50. Thinter.ance of was , otic.ved by a successful Local Leak Rate Test.

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