ML20024B729

LER 83-014/03L-0:on 830603,while Performing Monthly RHR Pump & Valve Surveillance Test,Containment Sump B Isolation Valve SI-350B Would Not Cycle Closed.Caused by Mechanical Interlock Sticking in Open position.W/830701 Ltr

ML20024B729
Person / Time
Site:	Kewaunee
Issue date:	07/01/1983
From:	Bernhoft S, Giesler C, Thorgersen J WISCONSIN PUBLIC SERVICE CORP.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
CON-NRC-83-129 LER-83-014-03L, LER-83-14-3L, NUDOCS 8307110284
Download: ML20024B729 (2)

Text

.

LICENSEE EVENT llEPORT lh f0NTROLULOCK: l l l l l l (PLE ASE PRINT OR TYPE ALL REOutnCD INFORMATION!

, , s  !

o i

? 8 9 lw lI LICENSEE lK lN lP cod [l 1 l@l 14 0 l 0 l- l 0 l0LICENbL lb l 0 l Nuf.1DEh 0 l 0 l - l 0 l 0 l@l 26 426 l 1LaCLNSL l 1 l 1T YPEl 1J3l@lbi CAIl l@

b6 CON'T lolil s$ ,"c' l L l@l 0 l 5 l 0 l 0 l 0 l 3 l 0 l5 l@l 0 l 6 l 0 l 3 l 8 l 3 l@l 0l 7 l 0 l 1 l 8 l 3 l@

EVENT DESCnlPTION At O PROSA L C JS NCES 10121 l During f' power operation, while performing the monthly RHR pump and valve j j u l a j l surveillance test, containment sump B isolation valve SI-350B would not cycle closed. l

[ o 1. l lThis required the valve to be taken out of service to perform corrective maintenance. l l n I s ] [ This placed the plant in an LCO per T.S.3.3.a.2.D and is reportable per T.S.6.9.2.b. (2) . l l o l61 l Since the redundant train was available to function during accident conditions, there l l o l 7 l lwas no effect on the health and safety of the public. j 10l811 I i 8 9 60 SY S T E r.9 CAUSE CAUSE COMP.

COOL VALVE CODE SuuCODE COMPONENT CODE SUBCODE SUBCODE l0[9l l Sl Fl@ W@ l Bl@ l C lK l T lB lR lK l@ l X l@ y @

1 8 9 to 11 12 13 13 19 20

_ SEouf flTI AL OCCURRENCE REFORT REVISION L E Hino EVENT YE AH REPOsti NO. CODE TYPE PJo.

O17 ,ag [--J l 0l 1l 4l26 l , -l l 0l 3 l [L l l_l [o l

_ l218 l3 2/ l 23 24 27 28 23 30 31 32 TAKEf A TO O PL AP ! 1 I C HOURS S B IT FO 1 Ull. S P LI MAN FACTUDEH

' 33b@l Z l@ 34 lZl@

35

[_Zjh 36 l0l0l0l0l 3/ lN lQ lY lg lNl@ l W l 1 l 2 l0 l(

40 44 42 43 44 47 CAUSE DESCnlPTION AND COHRECTIVE ACTIONS l i j o l l Valve Sl-350B failed to cycle closed because the mechanical interlock on the breaker  ;

i i lwas sticking in the open position. The mechanical arm was exercised, the valve cycled  ;

,,,,,jand returned to' operation within T.S. time limits. The surveillance test was then  ;

y l completed satisfactorily. No further action is required. l I L i '.1 I I

i 8 9 STAT S  % POWER OTHER STATUS ISC RY DISCOVERY DESCRIPTION i s [_E_j@ l ll 010 l@l NA l l B l@l RHR Pump and Valve Surveillance Test l

' EnviTv Co'0TE NT b RE L E ASE D oFRELEASE AMOUNT oF ACTIVITY LOCATION OF RELEASE l i IG l l_Z] @ d@l NA l l NA l PERSONNEL EXPOS E5 NUMelER TYPE ITTTl ' '

I o I o I o l@WOlOfSCntPTIOrs NA l

PE nSONNE t iruu' dies 8 NUV8EH OESCHIPTION T

I [, T[]eol 0l 0 l 0 l@l NA ii i2 l

LOSS oF oR DAMACL To FACILt TY so TYPF DE SCHIP TION fTT91 l_ZJ@! NA l l' ' '

PUst$TY 8307110284 830701 50 i< sue PDR ADOCK 05000305 NRC USE ONLY l,

[TJT] a 7 LNJ@DESCHiPisor.@

l NA iO S PDR l  ; ; ; ; ; ; ; ; ; ; ; ; l ::

G8 69 83 ;;

tJAME OF PRCPAHCR

. . ernhoM. G. Nrgem PHONE:

i

bptA NRC-83-129 )

WISCONSIN PU B LIC S E RVICE CO RPORATION RO. Box 1200, Green Bay, Wisconsin 54305 July 1, 1983 Mr. J. G. Keppler, Regional Administrator Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Mr. Keppler:

Docket 50-305 Operating License DPR-43 Reportable Occurrence 83-014/03L-0 In accordance with the requirements of the Technical Specifications, Section 6.9, the attached Licensee Event Report for reportable occurrence 83-014/03L-0 is being submitted.

Very tr ly yours, WW V C. W. Giesler Vice President - Nuclear Power Js Attach.

cc - Dir, Office of Inspection & Enforcement US NRC, Washington, DC 20555 Dir, Office of Mgt Info & Program Control US NRC, Washington, DC 20555 INP0 Records Center Suite 1500, 1100 Circle 75 Parkway Atlanta, GA 30339 Mr. Robert Nelson, NRC Resident Inspector RR #1, Box 999, Kewaunee, WI 54216 Mr. S. A. Varga, Chief US NRC, Washington, DC 20555 56c ?V \ \

JUL 61983