ML20009G183

LER 81-073/03L-0:on 810428,RHR Isolation Valve 1ND1B Failed to Reopen Following Stroke Test.Cause Not Determined.Limit Switches Adjusted & Functioned Properly When Cycled

ML20009G183
Person / Time
Site:	McGuire
Issue date:	05/28/1981
From:	Ouellette R DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009G172	List: ML20009G171 ML20009G183
References
LER-81-073-03L, LER-81-73-3L, NUDOCS 8108030402
Download: ML20009G183 (1)

Text

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svar osscaimon Ano racemata cousscusucas g LhileWin Mode 5, initial fuel lo@adhg, and af ter completing a periodic ,

(TTT1I stroke test, RHR isolation valve INDlB would not reopen. This is in .

I violation of Technical Snecificntion 3.4.1.4 and is renortable per Technica' iTITl i Specification 6.9.1.13(b) . Since the Control Room operators were aware of o e I the testine of the valve. its innnerability did no affect the safe operat!;3 8 I of the plant or the health and safety of the public.

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g l The RHR isolation valve would riot reopen af ter its stroke test. The cause -

LUJJ l of this f ailure could not be readily determined. The limit switches were m 1 adjusted and when the valve was cycled it was functioning properly.

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