ML20003C328

LER 81-008/03L-0:on 810127,containment Isolation Valves SV-2978C & SV-2671A in Sample Lines to Oxygen Analyzer Failed to Close Fully.Caused by Sticking Plunger Assemblies. Valves Cleaned,Reassembled & Leak Tested on 810204

ML20003C328
Person / Time
Site:	Peach Bottom
Issue date:	02/23/1981
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-81-008-03L, LER-81-8-3L, NUDOCS 8102270735
Download: ML20003C328 (1)

Text

nr. Soyce H. Grier, Director ho. 2 81-06/3L Of fica of Inspection (, Enforcement, Rsgion i U.S. Nucl3tr Regulatory Cornission 631 Park Avenue King of Prussie, PA 19!.06 Deer nr. Griers Tnis IIR concerns failure of two nomally open contaircent isolation valves to the centa*.raent oxyEen analyzer to fully close durire 7 surveillanet testing. Applicable Technical Specifications are 3 7.D.1 and 3 7.D.2.

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.. > l Durinc surveillance testirg with the unit at power. two contaircent i n I isolation valves (SV-2978C and SV-2671A) in the sa=ple lines to the 1 o . l oxygen analyzer failed to close fully. In accordance with I mi Te.h. Speo 3 7.D.2 the isolation valves in series were blocked i I

@f closed and the valves were placed on the daily inoperable isolation j o , I valve log. Manual valws in the sa=ple lines wer. Aso blocked closed. I I"5"ni"1 i  !

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@l Cause of failure was sticking plunger assemblies. The valves (Atkomatic t

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