ML20028D177

LER 82-019/03L-0:on 821207,valve 1HP-25 Failed to Open Remotely During Operational Valve Function Test.Caused by Component Failure.Valve Manually Cracked Open,Cycled & Stroke Tested

ML20028D177
Person / Time
Site:	Oconee
Issue date:	01/06/1983
From:	Petty J DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028D175	List: ML20028D174 ML20028D177
References
LER-82-019-03L-01, LER-82-19-3L-1, NUDOCS 8301170202
Download: ML20028D177 (1)

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10l211on 12/07/82 nt 2220. valve 111P-25 failed to remotely open during an operational l l o l3 l l valve functional test. Because of this, one llP1 train was declared inoperable l lo 14 l l and a power reduction was started. Two minutes later, the valve was manually l jo;3ll cracked open. was tested, and was declared fully operable. Ilad an Engineered

[ojell Safeguard event occurred, the redundant valve. IIIP-24 would have opened to pro-l vide the IIPI pumps with suction f rom the BWST.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS O>r lTI'o-l l Component failure caused this Encident. The valve failed to remotely open l

, , l because it was stuck on the valve seat. The valve was manually cracked open and was cycled and stroke tested and was declared operable. An investigation was made and found that this was not a common problem to llPI valves 24 and 25.

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