ML19208D494

LER 79-078/03L-0:on 790831,while Removing Rwcv,Suction Inboard Value F001 Failed in mid-position.Caused by Torque Limit Switch Opening & Causing Motor to Stop.Valve Tested & Problem Did Not Recur.No Further Action Necessary

ML19208D494
Person / Time
Site:	Brunswick
Issue date:	09/25/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19208D490	List: ML19208D489 ML19208D494
References
LER-79-078-03L, LER-79-78-3L, NUDOCS 7909280492
Download: ML19208D494 (1)

Text

NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION (7 7M -

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8 EVENT DATE 14 75 REPORT DATE 1 00 61 DOCK ET NtNB E R EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O 2 l While removing RWCV a " leak 11i 111" alarm was received whf ch isolatec the RWCV system. ]

o 3 l The operator noticed that the suction outboard valve shut as required but the suction l o 4 Jinboard valve F001 failed in the mid-position. I O 5 l Technical Specification 3.6.3, 6.9.1.9b _

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!1 o lAn investigation revealed that the torque limit switch had opened, causing the motor l li li l to stop. The valve was manually shut then cycled four times electrically and the 1 l i l ;, l [ problem could not be made to recur. This is considered an isolated event and no

, 3 l further action is required. l t i 141 l I 8 9 80 STA S  % POWE H OTHER ST ATUS ISL VE DISCOVEHY DESCFUPTION

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