ML19259C591

LER 79-030/03L-0 on 790611:during Surveillance Testing of O2 Analyzer Primary Containment Isolation Valves,Valve SV2671B Failed to Close.Caused by Binding of Piston in Valve Body. Valve Internals Were Rebuilt & Test Successfully Performed

ML19259C591
Person / Time
Site:	Peach Bottom
Issue date:	07/11/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-79-030-03L, LER-79-30-3L, NUDOCS 7907170102
Download: ML19259C591 (1)

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This LER refers to tha failure of a primary containtnent isolation valve. The applicable Technical Specification is 3.7.D.I.

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[ During surveillance testing of O gay 1 7zer pritr.ary containment isola tion

[iEJ L valve s, _ valve SV26718. failed..to .close. . Redundant isolation. valve.was . . _ _ _ _ _

ISIII ! operable. In accordance with Tech Spec 3.7.D.2, the macual. isolation I l' I ' l. valve was closed until. repairs _wera. completed.. E a cause _the_radundant_ . __ . _ .

'b I I valve was operable and-manual valva _wan clased.the. safety significanca - _ .J e_L~l L is minimal. Pre _vious occurrences were LER 2-78 ,45/3L 0 and 2-79-19/3L;0., , _ _ _

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