ML19332B015

LER 80-020/03L-0:on 800815,while Performing Leak Test, Containment Ventilation Valve AO-3521B Was Found Leaking Excessively.Caused by Valve T-ring Inflating Before Closure.Air Valves Adjusted & Valve Tested

ML19332B015
Person / Time
Site:	Peach Bottom
Issue date:	09/12/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
3-80-20-3L, 3-80-20-3L-0, LER-80-020-03L, LER-80-20-3L, NUDOCS 8009190482
Download: ML19332B015 (1)

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Mr. Doyce H. Grier, Directc,r No. 3 20/3L-0 Cffice of Inspection & Cnforcuxr. , Ro 1>i i U.S. Nuclear Regulatory Corrmission 631 Paric Avenue King of Prussia, PA 19406 Doar t*r. Griers This LER concerns the failure of AO-35213, a c~ontaiz=ent ventilation valve, to hold pressure during a leak test. Govemir4 Technical Specification is 3 7.A.2.

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FTTl l While parfoming a leak test on a contair=ent ventilation valve with the j i o ! ., i l unit at full power, inboard containment ventilation valve 10-35213 u y (TTU l found to be leaking such that test pressure oculd not be established. t i .. i , i l All outboard valves in series with A0-35213 are normally closed and were j I, ie i i verified closed when the leak test was performed. All outboard valves t 4

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