ML18219B570

Letter from Indiana & Michigan Power Co to NRC Submitting Licensee Event Report (RO 78-047/03L-0)

ML18219B570
Person / Time
Site:	Cook
Issue date:	07/18/1978
From:	Shaller D American Electrtic Power System, Indiana Michigan Power Co
To:	James Keppler NRC/RGN-III
References
LER 1978-047-03L
Download: ML18219B570 (6)

Text

~ s ~&1~8 REGULATORY INFORNATION DISTRIBUTION SYSTEM (RIDS >

DISTRIBUTION FOR INCONING NATERIAL 50-316 REC: KEPPLER J G ORG: SHALLER D V DOCDATE: 07l 18/78 NRC .IN 8. NI PWR DATE RCVD: 08/02/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

LTR 1 ENCL 1 FORWARDING LICENSEE EVENT REPT (RO 50-316/78-047> ON 07/12/78 CONCERNING THE REFUELING WATER STORAGE TANK LEVEL INDICATION FAILED LOWi CAUSED BY A BAD RESISTOR IN THE CURRENT REPEATER.

PLANT NAME: COOK UNIT 2 REVIEWER INITIAL: X JN DISTRIBUTOR INITIAL:

++++<<%4++++<<<<+ DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS NOTES:

i. SEND 3 COPIES OF ALL NATERIAL TO lhE INCIDFNT REPORTS (DISTRIBUTION CODE A002>

FOR ACTION: Nl BC<<W/4 ENCL INTERNAL: REG F /ENCL NRC PDR~~W/ENCL

~

<<WJ3 ENCL NIPC44W/3 ENCL I 5 C SYSTENS BR++W/ENCL BIERGENCY PLAN BR<<W/ENCL NOVAK/CHECK4~~W/ENCL EEB<<W/ENCL AD FOR ENGu~W/ENCL PLANT SYSTEMS BR<<W/ENCL HANAUER~~~~W/ENCL AD FOR PLANT SYSTENS<<W/ENCL AD FOR SYS 8. PROJ>+W/ENCL REACTOR SAFETY BR<<W/ENCL ENGINEERING BR<<W/ ENCL VOLLNER/BUNCH4~4~W/ENCL KREGER/J. COLL INS<<W/ENCL POWER SYS BR+4W/ENCL K SEYFRI T/IE~~~~W/ENCL EXTERNAL: LPDR S ST. JOSEPH) M I ++W/ENCL TICr LIZ CARTER<<W/ENCL NSI C<<W/ENCL ACRS CAT B4~~W/16 ENCL DISTR1BUTION: LTR 45 ENCL 45 CONTROL NBR: 7821-SIZE: lP~ 1P THE END <<<<<<<<<<<<<<<<<<%<<<<<<

4 II II

Gp erlcon Qy, INDIANA & NIICHIGANPDINER CDNIPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 July 18, 1978 F

Mr. J.G. Keppler, Regional Director I

Office of Inspection and Enforcement v

(,qW)

United States Nuclear Regulatory Commission ~ If%

(w) g- ~

, Region III C,I 799 Roosevelt Road Glen Ellyn, IL 60137 C/>

Operating License DPR-74 Docket No. 50-316 Dear Mr. Keppleri Pursuant to the requirements of the Appendix A Technical Specifications the following report is submitted:

RO 78-047/03L-O.

Sincerely,

~ D.VS Shaller Plant Manager

/bab cc: J.E. Dolan R.W. Jurgensen R.F. Kroeger R. Kilburn R.J. Vollen BPI K.R. Baker RO: III R.C. Callen MPSC P.W. Steketee, Esq.

R. Walsh, Esq.

G. Charnoff, Esq.

G. Olson J.M. Hennigan PNSRC j. g t'7 1978 J.F. Stietzel R.S. Keith Dir., IE (30 copies)

Dir., MIPC (3 copies)

J "V

t

't 4

I NRC FORM $ 66 (7.7V)-',

~. NUCLEAR REGULATORY COMMISSION s$ .c LtCENSEE EVENT REPORT

~~C5NTROL BLOCK: Q1 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I 6

~01 7 8 9 N I D C LICENSEE CODE C 2 14 Qs 15 0 0 0 0 LICENSE NUMBER 0 0 0 0 25 Qs 26 4 1 1 LICENSE TYPE 1 1 30 Qs~ Q 57 CAT 58 CON'T

~oi """ ~LQs0 5 0 0 0 3 1 6QsI007II: 2 7 8Qs0 7 I 8 7 8 Qg DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING NORMAL OPERATION THE REFUELING WATER STORAGE TANK RWST LEVEL INDICATION FAILED LOW. THIS INDICTION IS REQUIRED BY T. S . 3. 3. 3. 6 . THE APPLICABLE ACTION REQUIREMENTS WERE FULFILLED.

~OS

~OB

~OB 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE.

CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE 9

~ID 10 Qs> E Qis ~8Q>s I N 5 T R 0 Q4 ~XQTs ~Z 20 Q's 7 8 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REVISION Q>s LERJRO ssgoRT ACTION FUTURE EVENT YEAR

~78 21 22 EFFECT

+

23 SHUTDOWN

~04 24 REPORT NO.

7 26 27 28 ATTACHMENT CODE 29 NPRDQ TYPE 30 PRIME COMP.

31 NO.

32 COMPONENT TAKEN ACTION ON PLANT " METHOD HOURS +22 SUBMiTTED FORM SUB. SUPPLIER MANUFACTURER

~Q~a [7JQig ~ZQso ~2Qz> 0 0 0 TI ~NQss ~YQ4 ~AQss F- 1 8 0 Qss 33 34 35 36 37 40 41 42, 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27

~1o I NVEST I GAT I ON REVEALE D THAT A BAD RES I'STOR IN THE CURRENT REPEATER WAS THE CAUSE OF THE FAILURE. THIS RESULTED ONLY IN A LOSS OF THE RWST LOW LEVEL ALARMS WITHOUT AFFECTING THE AUTOMATIC FEATURES ASSOCIATED WITH THE RHR, PUMPS.

3 7,8 9 80 s.

FACILITY STATUS

~EQss ~07 56 POWER 0 Qsg OTHER STATUS NA

~

~3P METHOD OF DISCOVERY

'AQsi DISCOVERY DESCRIPTION Q32 OPERATOR OBSERVATION 7 8 9 10 12 13 44 45 46 80

~16 ACTIVITY CONTENT RELEASED OF RELEASE

~Z Q33 ~ZQ34 AMOUNTOF ACTIVITY NA

~ NA LOCATION OF RELEASE Q 7 8 9 10 44 45, 80 PERSONNEL EXPOSURES 7 8 9 11 12 . 13 80 PERSONNCL INJURIES 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 Z Q4. NA 7 8 9 10 80 PUBLICITY iSSUED DESCRIPTION Q NRC USE ONLY mZ 7 8 mNQ44 9 10 NA 80 O

r ss NAME OF PREPARER Jack Rischlin PHONE: 5

O. 'a ~i

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