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

~o~plooh yg g~INDIA NA 8 II/IICHIGA N PO IVER COII/IPA N Y 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 Coi4TROL BLOCK: LlCENSEE EVENT REPOR (PLEASE PRIP)T AI.L REQUIRED li'3FQAMATIQH)

LICENSEE NAME LICENSE TYPE LICENSI.F.UV'I>cA~01 N>0 0 0'0 0 7 Bg 14 25 EVENT TYPE 4 1 30 31 32 REPORT AF PORT CATEGORY TYPE'OURCE[on~]co,~v~~l.'L a.s7 sa sg.Bo i OOCKET NUMBER 0 5 0-0 1 5 0 68 69 EVENT OATF REPORT OATE 6 0 6 8 74 75 80 EVEIVT DESCRIPTION WHILE IN MODE 5 A REVIEW OF DATA TAKEN ON S/G 2 AND 4 MISMATCH.PROTECTION SET II 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 80 7 8 9 (RO-50-315/76-25

.80-80 7 89, SYSTEM COOE PRVIE CO>DEPONENT SUPPUEA COMPOi4ENT MANiUFACTUREA CAUSE COOS COMPONEI>T GOOF V>O LATCH>~o7~IA~D Z Z Z Z Z Z 7 8 9 10 11 12 17" CAUSE DESCRIPTION toast A REVIEW OF TECHNICAL SPECIFICATIONS

'Z 9 9 9 43 44 47 TABL'E'.2-1 INDICATES THAT THE-ALLOWABLE MAXIMUM FOR 4S 80 7 8 9 Qog THIS CHANNEL SETPOINT.IS ONLY 0.'5%HIGHER THAN THE UPPER LIMIT OF THE SETPOINT BAND 80 7 89 FACI'JTY STATUS 55 POWER, OTHER STATUS 0~00 0 NA 7 8 9.10'2 13 FOAM OF ACTIVITY COATENT RELEASEO OF RELEASE i AMOUNT OF ACTIVITY tiii Z'7 8 9.'-10 11 PERSONNEL EXPOSURES.NUMBER TYPE**OESCFNPTIOi4

~os~00 0 Z NA 7 89=1>12 13 PERSONNEL INJURIES~NUMBER, OESCRIPTION

~00'0,.NA, 7 8 9 1'I 12 PROB%BEE CONSEQUENCES

~15 NA METHOO.OF OISCOVEAY OISCOVEAY OESCRIPTION SURVEI'LLANCE TEST B 44 45 46 SO LOCATION OF ANI.EASE NA 44/80 80 7 8 9~80~e STABLISHED BY THIS TABLE.A REQUEST FOR DESIGN CHANGE WAS.-'.,(SEE SUPPLEMENT)

• 7 8 9 LOSS OR DAMAGE TO FACILITY TYPE 0ESCAlPTIOi

>~1S~Z NA-7-89'io PUBLICITY Q~Q I.NA 7 8 9 ADDITIONAL FACTORS'Q~g l NA 7 S 9 Q~g NA ,7 SS NAME.J.RISCHLING PyoNE 616 465-590 Bo 80 80 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.