ML18219C348

LER 1976-025-00 for Donald C. Cook, Unit 1 - Violation of Technical Specifications Table 2.2-1, No. 14

ML18219C348
Person / Time
Site:	Cook
Issue date:	06/08/1976
From:	Jurgensen R American Electric Power Service Corp, Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	James Keppler NRC/IE, NRC/RGN-III
References
LER 1976-025-00
Download: ML18219C348 (4)

Text

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~ plooh yg g~ INDIANA 8 II/IICHIGAN PO IVER COII/IPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 June 8, 1976 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 Commission Regulatory Guide 1.16, Revision 4, Section 2.b., the following report is submitted:

RO 50-315/76-25 Sincer ely, R.W. J ens Plant anager

/bab cc: R.S. Hunter J.E. Dolan G.E. Lien R. Kilburn R.J. Vollen, BPI, R.C. Callen MPSC K.R. Baker RO:III P.W. Stetekee, Esq.

R. Walsh, Esq.

G. Charnoff, Esq.

G. Olson J.M. Hennigan PNSRC R.S. Keith Dir., IE (30 copies) .

Dir., MIPC (3 copies)

<(

r

LlCENSEE EVENT REPOR Coi4TROL BLOCK: (PLEASE PRIP)T AI.L REQUIRED li'3FQAMATIQH)

LICENSEE LICENSE EVENT NAME LICENSI. F.UV'I>cA TYPE TYPE

~01 N > 0 0 0' 0 0 4 1

~

7 Bg 14 25 30 31 32 REPORT AF PORT

[on~] co,~ v a .

CATEGORY s7 sa

~l.'L TYPE sg

'OURCE

.Bo 0 5 i OOCKET NUMBER 0 0 1 5 68 69 0

EVENT OATF 6

74 0

75 6

REPORT OATE 8

80 EVEIVT DESCRIPTION WHILE IN MODE 5 A REVIEW OF DATA TAKEN ON S/G 2 AND 4 MISMATCH. PROTECTION SET II 80 7 8 9

~03 INDICATES THAT THE ERROR FOUND IN S UARE ROOT EXTRACTOR IFY-521B'.425% WAS I 7 8 9

~o 4 OF THE ERROR ALLOWED IN TECH SPEC TABLE -2.2-1 ImI14; 7 8 9 80 7 8 9 . 80

( RO-50-315/76-25 7 89, PRVIE

-80 SYSTEM CAUSE CO>DEPONENT COMPOi4ENT COOE COOS COMPONEI>T GOOF SUPPUEA MANiUFACTUREA V>O LATCH>

7

~o7 8 9 10

~IA ~D 11 12 Z Z Z Z Z Z 17 43 44

'Z 9 9 9 47 4S CAUSE DESCRIPTION toast A REVIEW OF TECHNICAL SPECIFICATIONS TABL'E'.2-1 INDICATES THAT THE- ALLOWABLE MAXIMUM FOR 7 8 9 80 Qog THIS CHANNEL SETPOINT. IS ONLY 0.'5% HIGHER THAN THE UPPER LIMIT OF THE SETPOINT BAND 7 8 9 ~

80

~e STABLISHED BY THIS TABLE. A REQUEST FOR DESIGN CHANGE WAS . -'. ,(SEE SUPPLEMENT) *

'2 7 89 80 FACI'JTY STATUS 55 POWER, OTHER STATUS METHOO. OF OISCOVEAY OISCOVEAY OESCRIPTION 0 ~00 0 13 NA 44 B

45 46 SURVEI'LLANCE TEST SO 7 8 9 . 10 FOAM OF ACTIVITY COATENT RELEASEO OF RELEASE i AMOUNT OF ACTIVITY LOCATION OF ANI.EASE tiii Z

'- 44 NA 80 7 8 9 . 10 11 PERSONNEL EXPOSURES . /

NUMBER TYPE OESCFNPTIOi4

~os ~00 0 Z NA 80 7 89 =1> 12 13 PERSONNEL INJURIES ~

NUMBER,

~00 '0, OESCRIPTION

.NA, 7 8 9 1'I 12 PROB%BEE CONSEQUENCES

~15 NA 7 8 9 Bo LOSS OR DAMAGE TO FACILITY TYPE 0ESCAlPTIOi >

~1S ~Z NA-7- 89 'io PUBLICITY Q~Q I.NA 7 8 9 80 ADDITIONAL FACTORS

'Q~g l NA 7 S 9 Q~g NA

,7 SS 80 NAME. J. RISCHLING PyoNE 616 465-590

SUPPLEMENT TO REPORTABLE OCCURRENCE RO-50-315/76-25 SUPPLEMENT TO CAUSE DESCRIPTION INITIATED TO LOWER THE SETPOINT OF THE BISTABLE TO AFFORD AN INCREASED DRIFT TOLERANCE.

THE CHANNEL WAS RECALIBRATED TO WITHIN ALLOWABLE LIMITS AND RETURNED TO SERVICE.