ML18219C232

LER-1977-033-00 for Donald C. Cook, Unit 1 - Position Indication for Rod F-6 Indicating a 33 Step Deviation from Bank Position

ML18219C232
Person / Time
Site:	Cook
Issue date:	10/14/1977
From:	Shaller D American Electric Power Service Corp, Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	James Keppler NRC/IE, NRC/RGN-III
References
LER-1977-033-00
Download: ML18219C232 (8)

Text

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U.S. NUCLEAR REGULATORY C SSION DOCKET NUMBER NRC FORM 195 (2

78)'RC FILE NUMBER DISTRIBUTION sos PART EO DOCKET MATERIAL INCIDENT REPORT TO': FROM: DATE OF DOCUMENT Mr. J. G. Keppler Indiana & Michigan Power Co. 10/1</77 Bridgman, Michigan 49106 DATE RECEIVF 0 D. V. Shaller 11/02/77 ETTE R ONOTOR IZED PROP INPUT FORM NUMBER OF COPIES RECEIVED

+ORIGINAL P(UNC LASS IF I ED Q COPY DESCRIPTION ENCLOSURE Licensee Event Report (RO 50-315/77-

33) on 09/16/77 concerning position indication for rod F-6 indicated a 33 step deviation from bank position...

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PLANT NAME: COOK UNIT 8 1

'BRANCH CHIEF:

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'~vm 11/02/77 CYS FOR ACTION IF ACTION/INFO R MATI ON PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J. COLLINS E]vc ( Lee 'OR

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INTERNAL D ISTRI BUTION NRC PDR MI C SCHROEDER IPPOLITO NOVAE CHECK TEDESCO SHAO OLLMER BUiNCH L

ROSA EXTERNAI DISTRIBUTION CONTROL NUMBER PDR: Ti OS C TIC iISIC T~ B +73060jOg

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>@I)Igy gott Wmo~n 4'O < I.E jgpy yste INDIANA 8 It/IICHIGAN PDNER CDIt/IPANY DONALD C. COOK NUCLEAR FLANT F.O. Box 458, Bridgman, Michigan 49106 be NOVg

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Mr. J.G. Keppl er, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory r III Commission'egion 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License'PR-58 Docket No. 50-315

Dear Mr. Keppler:

Pursuant to the requi rements of Appendix A Technical Specifications and the United States Nuclear Regulatory Commission Regulatory Guide 1. 16, Revision 4, Section 2.b, the following report is submi tted:

RO 50-315/77-33.

Sincerely, D.V. Shaller Plant Manager

/bab cc: J.E. Dolan R.WE Jurgensen G.E. Lien 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)

OCT 171977 7730601O>

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Form No. 4494 CONTROL 8LOCK: (PLEASE PRINT ALL REQUIRED INFORMATION) 1 UCEN SEE LICENSE EVENT

. NAME LICENSE NUMBER TYPE TYPE

[oaf M IDCC I 0 0 0 0 0 0 0 0 0. 4 1 1 1 1 LQJ~ '32 7 89

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14 15 25 26 30 31 0916771Q1477 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

[0D1IooN'1 58 L L 60 0 5:0 0 3 1 68 69 74 75 80 7 8 57 59 61 EVENT OESCRIPTION QO 2 ON 9 16 77 POSITI N D 7 89 80

[003] TION FROM BANK POSXTION. AT THE TIME ROD F-6's I 7 89 80 Kl04 195 STEPS AND BANK POSITION XNDICATED 228 STEPS. THXS IS IN EXCESS OF t0Q5]

THE 1 2 STEP LIMXT AS OUTL NED I IN I TECHN ICAL SPEC F ICATXONS PARAGRAPH 7 8 9 80

[OO~] 3.1.3.2. UPON IDENTIFICATION SEE SUPPLEMENT RO-050-315 77-=33" 7 8 9 PRME 80 SYSTEM ,

CAUSE COMPONENT SUPPLER

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~IECODE 10 CODE

~E I COMPONENT CODE N S T RU 17

~N 43 44 W 1 2 9 47 48 11 12 .,

CAUSE DESCRIPTION 0 8 CG THE CAUSE WAS TRACED TO THE SIGNAL CONDITIONING MODULE MODEL E2-786 Jog WHICH WAS FOUND TO BE READXNG'OW. THE "SPAN" ADJUSTMENT WAS ADJUSTED 7 8 9 80

~10 FOR A CORRECT READXNG OF 228 STEPS. ROD F-6 {SEE SUPPLEMENT) 7 89 FACIUTY METHOD OF 80 STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION

[111] ~E ~96 0 NA NA 7 8 9 10 12 13 44 45 46 80 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Qg Z Z NA N 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Qs]~oo o z N 7 89 11 .12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION Iris] ~00 0 NA 7 89 11 12 80 OFFSITE CONSEQUENCES Q~g NA 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

~16 Z NA 7 89 10 80 PUBLICITY

~17 NA 7 89 80 AOOITIQNAL FACTORS

~18 NA 7 89 80

[119] NA 7 89 80 NAME. T ~ P . BEILMAN PHPNEI(616) 465 5901 (368)

CPO $ 61 ~ 667

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SUPPLEMENT TO REPORTABLE OCCURRENCE RO-050-315/77-33 SUPPLEMENT TO EVENT DESCRIPTION OF THE PROBLEM, NUCLEAR ENGINEERS VERIFXED THAT ROD F-6 WAS IN CORRECT POSITION RELATIVE TO SYMMETRICAL ROD K-10 THROUGH THE INCORE FLUX DETECTORS. THIS IS THE THIRD SUCH OCCURRENCE FOR THIS PARTICULAR INDICATOR.

SUPPLEMENT TO CAUSE DESCRIPTION POSITXON INDICATION WAS THEN PLACED ON A TREND RECORDER TO MONXTOR INDICATION AT 15 MINUTE INTERVALS. NO FURTHER PROBLEMS HAVE BEEN ENCOUNTERED.

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