05000316/LER-2078-031-03, Letter Licensee Event Report

Letter Licensee Event Report

ML18219B522
Person / Time
Site:	Cook
Issue date:	06/06/1978
From:	Shaller D American Electrtic Power System, Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	James Keppler NRC/IE, NRC/RGN-III
References
LER 1978-031-03L
Download: ML18219B522 (6)

LER-2078-031, Letter Licensee Event Report

Event date:
Report date:
3162078031R03 - NRC Website

text

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIBS>

DISTRIBUTION FOR INCOMING MATERIAL'0-316 REC:

KEPPLER J G

ORG:

SHALLER D V DOCDATE: 06/06/78 NRC IN

8. MI PWR DATE RCVD: 06/19/78 DOCTYPE:

LETTER NOTARIZED:

NO COPIES RECEIVED

SUBJECT:

LTR 1

ENCL 1

FORWARDING LICENSEE EVENT REPT (RO 50-316/78-031>

ON 05/07/78 CONCERNING DURING NORMAL OPERATIONr TWENTY TWO EVENTS OCCURRED BETWEEN Tl IE DATES OF MAY 7 5 MAY 19'HERE ROD POSITION INDICATION DID NOT MEET THE PLUS-MINUS 12 STEP LIMIT OF TECH SPEC

3. 1. 3. 2 PLANT NAME: COOK UNIT 2 REVIEWER INITIAL:

XJM DISTRIBUTOR INITIAL:~

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DISTRIBUTION OF Tl-IIS MATERIAL IS AS FOLLOWS 4~4++<<<<<<<<+<<<+

4 NOTES:

'1.

SEND 3 COPIES OF ALL MATERIAL TO ISE, ED REEVES-1 CY ALL MATERIAL

, COINCIDENT REPORTS (DISTRIBUTION CODE A002>,

FOR ACTION:

INTERNAL:

EXTERNAL:

BR F LWR82 BC~~W/4 ENCL REG FILE+

/ENCL

/Q ENCL I 5 C SYSTEMS BR++W/ENCL NOVAK/CHECK4+W/ENCL AD FOR ENG++W/ENCL HANAUER+4W/ENCL AD FOR OPER TECH>+W/ENCL ENGINEER(Ng gR+~W/ENCL KREGER/J.

COLLINS4~+W/ENCL K SEYFRIT/IE+<W/ENCL LPDR S ST.

JOSEPH MI++W/ENCL TIC4+W/ENCL NS IC++W/ENCL ACRS CAT B+~W/16 ENCL I

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NRC PDI~%+W/ENCL MIPC<<W/3 ENCL EMERGENCY PLAN BR>~W/ENCL EEB44W/ENCL PLANT SYSTEMS BR>+W/EhlCL

,ADFQR PLANT SYSTEMS+<W/ENCL

REACTOR SAFETY BR<+W/ENCL

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meriossn INDIANA& MICHIGANPDNER CDMPANY DONALD C. COOK,'UCLEAR PLANT'.O.

Box 458, Bridgman, Michigan '49106 June 6,

1978 41 g~'a og.)<~(gg Mr. J.G.

Keppler, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Mr. Keppler:

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

RO 78-031/03L-O.

Sincerely, DE V. 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.F. Stietzel Dir., IE (30 copies)

Dir., MipC (3 copies)

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Qe DOCKET NUMBER 68 69 EVENT DATE

~ '74 IS REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES i&10

~o2 DURING NORMAL OPERATION, TWENTY-TWO EVENTS OCCURRED BETWEEN THE DATES OF MAY 7 AND MAY 19, WHERE ROD POSITION INDICATION (RPI )

DID NOT MEET THE + 12 "STEP LIMIT OF T.

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THE ATTACHED SUPPLEMENT DESCRIBES ALL THESE EVENTS

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AFTER THE EVENT ON 5 16 78 THE RPI FOR D 8 WAS DECLARED INOPERABLE.

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T.S.3.1.3.2a WAS FULFILLED. PREVIOUS OCCURRENCES OF A SIMILAR NATURE INCLUDE RO 050/315-78-07 04 77-34 33 28 27 76-54 44 13 RO-050/316 78-22 08 07 o

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'2 43 44 47 CAUSE DESCRIPTION ANDCORRECTIVE ACTIONS &27

~ID INVESTIGATION REVEAL'ED THAT MOST OF THESE EVENTS 'INVOLVED MEASUR'ING THE AFFECTED DLII ROD'S SECONDARY COIL VOLTAGE TO VERIFY THAT THE ROD WAS AT THE PROPER POSITION.

THE SIGNAL CONDITIONING MODULE WOULD THEN BE CALIBRATED AND PLACED BACK IN SERVICE RETURN 4

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LIMIT WITHOUT (SEE ATTACHED SUPPLEMENT) 8 9

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ING RP I TO WITHIN THE +

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9 11 12 LOSS OF OR DAMAGETO FACILITYQ43 TYPE

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10 NAME OF PREPARER NA NA Jack Rischlin 68 69 PHONE:

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SUPPLEMENT TO EVENT DESCRIPTION OF LICENSEE EVENT REPORT 878-031/03L-0 THIS IS A LISTING OF EVENTS WHERE RPI DID NOT MEET THE 12 STEP LIMIT OF T.S. 3.1.3.2.

DATE TIME ROD POSITION INDICATION AFFECTED 5/7 5/8 5/8 5/9 5/9 5/10 5/10 5/10 5/10 5/10 5/12 5/14 5/14 5/15 5/15 5/15 5/15 5/16 5/16 5/16 5/19 5/19 2315 D-8,D-12, M-8, H-8 1210 C-9 1725 D-4, D-8, D-12, M-12'004 D-8 2213 D-4, D-8, D-12, M-8, H-4 0358 D-4, D-8, D-12, M-4, M-8, M-12, H-8 1148 D-8, H-8, D-12 1238 M-8, M-12, H-4 2115 D-12, H-8

., 2318 D-8, M-4, H-8, H-12 0553 D-4, D-8, D-12, M-12 2015 H-8 2327 H-8 0355 D-8 0413 D-8 1658 D-8 2136 D-8 0040 D-8 0338 D-8 0748

,D-8 (D-8 RPI Determined inoperable) 0200 H-8 1611 H-8 TO CAUSE DESCRIPTION IVE ACTION.

THE D-8 RPI PROBLEM WAS FOUND TO BE "CAUSED BY SUPPLEMENT ANY CORRECT A CONNECTOR ON THE REACTOR HEAD, THE PINS WERE RECESSED IN THE CONNECTOR CAUSING THE RPI TO FLUCTUATE AS SHORTS OCCURRED.