ML19332B366

LER 80-021/03X-1:on 800818,during PCIS Logic Sys Functional Testing W/Plant Shutdown,Primary Containment Valve AO-3506 Failed to Close.Caused by Asco Model S56756 Solenoid Valve Stuck in Energized Position.Solenoid Valve Cleaned

ML19332B366
Person / Time
Site:	Peach Bottom
Issue date:	09/09/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-80-021-03X, LER-80-21-3X, NUDOCS 8009260621
Download: ML19332B366 (1)

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This L.E.R. concems the failure of prinary containment ventilation isolation valve AD-3506 to close during surveillance testin,t. The 19 goveming Technical Specificatior.s are 3 7.D.1 and 3 7.D.2.

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,  ;,,9 primary containment ventilation valve A0-3506 fai. led to close until  ;

, 3 ., , i its solenoid valve was tapped. This indicated that the solenoid valve ,

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catu ce:ca.stics Aso cerag:Tive Actro .; q) l > ! l Problen was caused bt an ASCO Model S$6756 solenoid valve which was 1

!'Il stuck in the enerrized position. The solenoid valve was dissasarm-ble1, I i[ cleaned, and retumed to service. Following repair satisfactory ,

e,i l operation was confirmed by stroking the valve repeatedly. i

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