ML20040D339

LER 82-002/01T-0:on 820108,ommission of Essential Svc Water Valves WMO-734 & 738 Testing Rendered Essential Svc Water Loops Inoperable.Caused by Procedure Revision Error.Testing Added to Appropriate Procedures

ML20040D339
Person / Time
Site:	Cook
Issue date:	01/21/1982
From:	Palmer R MIDWEST ELECTRIC COOPERATIVE
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20040D336	List: ML20040D335 ML20040D339
References
LER-82-002-01T, LER-82-2-1T, NUDOCS 8202010196
Download: ML20040D339 (1)

Text

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES O'o 10 l21 lWHILE REVIEWING TEST PROCEDURES, IT WAS DISCOVERED THAT THE ESSENTIAL SERVICE WATER l o .i l(ESW) VALVES WM0-734 AND -738 WERE NOT TESTED AS REQUIRED BY T.S.4.7.4.1.8 (EV IO i ; l1735). THIS RENDERED BOTH ESW LOOPS IN0PERABLE PER T.S. 3.7.4.1. A POWER REDUCTION l ioisi lWAS STARTED AT 1825 HOURS ON 01-08-82 AS REQUIRED BY TECHNICAL SPECIFICATION PARAGRAPH; I O is 1 I 3 .0.3. THE ESW LOOPS WERE DECLARED OPERABLE AND THE POWER REDUCTION WAS TERMINATED l l 0 l, g lWHEi, WM0-734 (EAST LOOP) WAS SATISFACTORILY TESTED ON 01-08-82. WM0-734 WAS TESTED AT, io,ai[1837 HOURS AND WM0-738 AT 1847 HOURS. l DE CODE S BCO E COMPONENT CODE SUSC DE SU E 10191 1 8 l Wl Bl@ l Bl@ lZ l@ l Zl Zl Zl Zl Zl Zl@ W@ l z l@

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33 34 35 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h litoilINVESTIGATION REVEALED THAT THE ESW VALVES, WM0-734 AND -738 WERE OMITTED DURING A l lii_y l PROCEDURE REVISION IN OCTOBER 1979. THE PROCEDURE WAS ALSO REVISED IN APRIL 1981 AND l i,i,i lTHE ESW VALVES WERE AGAIN NOT INCLUDED IN THE TEST PROCEDURE AS THE OCTOBER 1979 RE- l i1 i3i l VISION WAS USED AS A REFERENCE. THE TESTING 0F VALVES WM0-734 AND -738 WAS AD g lTHE APPROPRIATE PROCEDURES AND TESTED ON 01-08-82. l T S %POWEh OTHER STATUS dis O RY DISCOVERY DESCRIPTION 32 NA l 1115 I lE l@ l 1 l 010 l@l l l C l@l DURING REVIEW 0F T.S. SURVEILLANCES ACTIVITY CO TENT 54ELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE NA I1I6l [Z_j @ [Z_J @ l NA l l 80 l

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/ 10 68 69 80 5 NAME OF PREPARER R. A. PALMER psoys i616-465-5901

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