ML18219C219

LER 1978-004-00 Re Higher Steps of Rod P-8

ML18219C219
Person / Time
Site:	Cook
Issue date:	01/30/1978
From:	Shaller D Indiana Michigan Power Co
To:	James Keppler NRC/RGN-III
References
LER 1978-004-00
Download: ML18219C219 (7)

Text

Wmerloen Eteomo IPowe QSE8 D NA 8r MICHIGANPOKER COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 January 30, 1978 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 Operating License DPR-58 Docket No. 50-315

Dear Mr. Keppler:

Pursuant to the requirements of Appendix A Technical Specifications and the United States Nuclear Regulatory Corinission Regulatory Guide 1.16, Revision 4, Section 2.b, the following report is submitted:

RO 50-315/78-04.

Sincerely, D.V. Shaller Plant Manager

/bab cc: J.E. Dolan R.W. Jurgensen Lien '.E.

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)

'1 0

1I,

PJ

'5 89'0 l-or'm No. 4494 LICENSEE EVENT REPORT+

CONTROL BLOCK: (PLEASE PRIMT ALL REQUIRED IMFORMATIOM)

UCENSEE UCENSE EVENT NAME LICENSE NUMBER TYPE TYPE Qpg M I D C C 1 0 0 0 0 0 0 0 0 0 4 I 1 I 1 ~03 89

~

7 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

[OD1IooN'T L ~L 0 5 0 0. 3 1 5 1 2 0 5 7 7 I 3 7 8 57 58 59 60 61 ,68 69 74 75 80 EVENT DESCRIPTION PN 12-28-77, IT WAS DISCOVERED THAT ON 12-5-77 THE INDICATED POSITION OF ROD P-8 7 8 9,

~03 WAS APPROXIMATELY 1 4 STEPS HIGHER THAN THE INDICATED BANK POSITION . TH IS EXCEEDS 7 8 9 80

[onaj I THE 12 STEP LIMIT IMPOSED BY APPENDIX A TECHNICAL SPECIPI 7 80

[oa~] RO-050-315 78- 04 7 8 9 80 Jog 7 8 9 PRME 80 SYSTEM CAUSE COMPONENT CODE CODE COMPONENT CODE SUPPLER

[oazj~IE E I N ST R 0 . N W 1 2 9 N 7 8 9 10 11 12 17: 43 44 47 48 CAUSE DESCRIPTION

[gg~]

TECHNICIAN INVESTIGATION REVEALED THE CAUSE TO BE EXCESSIVE DRIFT IN THE SIGNAL 7 8 9 80

~gg CONDITIONING MODULE (MODEL jIE2-786). THE SPAN ADJUSTMENT OF THE MODULE WAS 7 8 9 80 tiio) ADJUSTED FOR THE CORRECT VALUE AND THE INDICATOR WAS SEE SUPPLEMENT 7 8 9 80 FACE.ITY METHOD OF STATUS 95 POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION 8

E ~10 0 N A 44 A

45 N A 7 9 10 12 13 46 80 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Z Z N A N A 9 10 11 44 45 80 PERSONNEL EXPOSURES 7 8 9 11 .12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION

~00 0 N A 7 8 9 11 12 80 OFFSITE CONSEQUENCES N/A 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

~Z N/A 7 8 9 10 80 PUBLICITY N/A 7 8 9 80 ADDITIONAL FACTORS N/A 7 89 80

~19 N/A 7 89 80 T. P, BEILMAN PHDNE (61 6) 465-5901 (368)

GpO eel.eeT

0

'1

SUPPLEMENT TO REPORTABLE OCCURRENCE RO-050-315 78- OO SUPPLEMENT TO CAUSE DESCRIPTION SATISFACTORILY RETURNED TO SERVICE WITHIN THE HOUR. NO FURTHER PROBLEMS ON THIS CHANNEL HAVE AS YET BEEN ENCOUNTERED.

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DISTRIBUTION FOR INCOMING MATERIAL 50-315 REC: 'KEPPLER J G ORG'HALLER D V DOCDATE: 01/30/78 NRC IN 5 MI PWR DATE RCVD: 02/06/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

LTR 1 ENCL 1 LICENSEE EVENT REPORT 78-04 ON 12l5/77 CONCERNING DISCOVERY THAT THE INDICATED POSITION OF ROD P-8 WAS APPROXIMATELY 14 STEPS HIGHER THAN THE INDICATED BANK POSITION.

PLANT NAME: COOK UNIT 1 REVIEWER INITIAL: XEF DISTRIBUTOR INITIAL:

+<~++++44~HHF+++++4 DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS INCIDENT REPORTS (DISTRIBUTION CODE A002)

FOR ACTION: BRANCH F DAVIS>>W/4 ENCL INTERNAL: REG FILE++W/ENCL NRC PDR++W/ENCL PAR='ENG MIPC++W/3 ENCL SCHROEDER/IPPOL ITO++W/ENCL HOUSTON++W/ENCL NOVAK/CHECK44W/ENCL GRIMES++W/ENCL KN I GHT++W/ENCL BUTLER++W/ENCL HANAUER+4W/ENCL TEDESCO+4W/ENCL EI SENHUT+4W/ENCL BAER+>W/ENCL SHAO44W/ENCI VOLLMER/BUNCH++W/ENCL KREGER/J. COLLINS+4~W/ENCL CROCKER++W/ENCL ROSA++W/ENCL EXTERNAL: LPDR S ST. JOSEPH) MI++W/ENCL I C~~~W/ENCL NS IC++W/ENCL ACRS CAT B++W/16 ENCL J

DISTRIBUTION: LTR 45 ENCL 45 CONTROL NBR: 780380037 SIZE: 1P+ iP

%% 0t%%% 4%8t %0HM+4%%%9F%%%%4 4 4%%%4%%%%4. THE FND %4 %%%%%%%%% 4%%%%4%%%%%%%%%%8k R%

r~

I,

, ~ j 4

l t

I