ML20009F501

LER 81-013/01T-0:on 810630,backup Function of Isolating & Transfer Diodes in Instrumentation & Control Sys Disabled on All Channels on All Units.Caused by Misinterpretation of Tech Specs.Proposed Tech Spec Change Initiated

ML20009F501
Person / Time
Site:	Oconee
Issue date:	07/14/1981
From:	Jackie Jones DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F495	List: ML20009F494 ML20009F501
References
LER-81-013-01T, LER-81-13-1T, NUDOCS 8107310244
Download: ML20009F501 (1)

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[iiol1The apparent cause of the incident is a misintarnraeneinn nf Tacknien1 <naref4J iiii;Ication 3.7 when the procedure was originally written in 1974. Tha f-maA4 ara f i,,rtIcorrective action was the initiation of n ,rnnnead changa to Oconee Technical I g,;3] [ Specification 3.7 which would allow the seoaration of all three units' I&c. nci l77:-) i system via the isolating and transfer dicdes for a period not to exceed 24 hoa.ufs.

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J. L. Jones ,wour: (704) 373-8197 NAMe es amarAmen 6107310244 810714

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