ML20038B001

LER 81-034/03L-0:on 811018,during Normal operations,1B Zone SV Fan Started Automatically.Caused by Solenoid Failure Due to Burned Out Coil in Safe Position Automatically Starting Fan & Opening Damper.Coil Replaced

ML20038B001
Person / Time
Site:	Kewaunee
Issue date:	11/17/1981
From:	Smoker C WISCONSIN PUBLIC SERVICE CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20038B000	List: ML20038A999 ML20038B001
References
LER-81-034-03L, LER-81-34-3L, NUDOCS 8111240583
Download: ML20038B001 (1)

Text

NHc FORM JW U. S. NUCLEAR REGULATORY COMMISSION (7 77) ,

LICENSEE EVENT REPORT lh CONTROL BLOCK: l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI i 6

% l 8W9 l I lLICENSEE 7

K l NCODEl P l 1 lhl 0 l0 l- l 0LICENSE 14 15 l0 lNuMUEH0 l 0 l 0 l- l0.'$l 0 2tilh!4LICENSE l1 l1'llTYFE JO l1lh!$7 GAT l

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CON'T lTTil 5 UR$Gol L @i O l 5 DOCKET l 0 l 0NUMSER l 0 l 3 l 0 6dl 5 @l &J 1 EVENT l o lDATE 1 l 8 l 8 74l 1 l@l1 75 l 1 l117 l 8 l1 REPOR T DATE 80 Ih 7 8 61 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l0l2l l During normal operations, at 100% indicated power, 1B zone SV f an started automticn114 l0 l3 l l The fan operation was determined to be unnecessary and the fan circuit breaker was l l o l 4 l l opened to take the fan out of service. The IB zone SV fan out of service is recortabid j0l5l l per T.S.6.9.2.b. (2) . The failure was in the conservative direction and the fan  !

l0 l6 l lcould have been made available by closing the breaker. There was no effect on public l l 0 l 7 l l safety or plant operation. . l l0l8l l  !

7 8 9 80 SYSTE" CAUSE CAUSE COP /P. VALVE CODE COOE SUS 00DE COMPONENT CODE SUSCOCE SUSCODE 10191 7 8 l a l xl@ Ld@ l al@ l d d r. l v i o l v l@ Le_1@ Lz_J @

9 to 11 12 13 18 19 10 ,

_ SEQUENTI AL OCCUR RE NCE RE' ORT REVISION L EVENT YE AR REPORT NO. COOE TYPE N O.

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30 l-l 31 LeJ 32

_ 21 AK N ACT ON ON PL NT VET HOURS SB IT FO 1 B. SU PLIE MAN F A(.T R ER l33 AlQlJ4Fl@ lJhZ l@ l Zlh JE l0l0lOl0l 31 40 lNlh lYlh lAlh lJl0l9l0l(

41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l11O l l The solenoid failed, due to a burned out coil, in the closed (safe) nosition i l3 lil l automatically starting the fan and opening the damper. The coil was replaced ar.d I yl the system tested operable within T.S. time limits. Due to repeated failures of l

,,,3, l this coil, a design change has been initiated for chanceout to a more reliable l l

component. No further action is recuired. l 7 8 9 . 80 -

ST S  % POWER OTHER STATUS IS O RY DISCOVERY OESCRIPTION i 5

{ h l1l0l0l@l NA l lAl@l Operator Observation l A TIVITY CC TENT RELE ASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE i e Ld @ Laj@l na l I= I 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUVR E R TYPE DE SCHIPTION -

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,ERSONNE L ,muli,ES Nu. .R E R oESCniPnON@

li is 8I 9l 01 nl ol@l 7 11 12 un 80 1

LOSS OF OR D AMAGE TO FACILITY TYPE C t3C Hi# TION i a LU@l10na i 7 is 'J 80 PusuciTv n 8111240583 811117 ~ NRC USE ONLY

• PDR ADOCK 05000305 .

2 o b_j l na ISSUE n@otScRiPnON U45 S PDR - 1 IIllIIlIIIIIII 7 8 9 io 68 69 80 %

c. s. smoker . . . .

(414) 3RR-2590  ?