ML19242C498

LER 79-021/03L-0 on 790630:during Surveillance Testing,Main Steam Sample Line Inboard Isolation valve,AO-3-2-316,failed to Close.Cause Under Investigation.Problem Will Be Resolved During Next Scheduled Outage

ML19242C498
Person / Time
Site:	Peach Bottom
Issue date:	07/30/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-79-021-03L, LER-79-21-3L, NUDOCS 7908100484
Download: ML19242C498 (1)

Text

Mr. Boyce H. Grier, Director No. 3-79-21/3L Cf fice of Inspec t ion & Enf orcemen t, Region I U.S. Nuc lear R egu latory Cemi ssion 63 ! Park Avenue King of Prus si a, PA 19M 6

Dear Mr. Grie r:

This 1.ER refers to main steam sample line inboard isolation valve (AO-: 316) being inope rable. The applicable Technical Speci fications a re 6.9.2.b (2) and 3.7.D.2.

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[ c l i [ L_ valve, ( AO-3-2-316Lfa11ed to close. In accordance with Technical

W L Specification 3.7.D.2, the redundant outbcard isolation valve was lcj<[ Loperable and closed and daily surveillance requirements for the

[ ele] E redundant isolation ilve are being performed. For these reasons the _

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