05000315/LER-1985-054, :on 851026,w/unit in Mode 3,ESF Actuation Signal Received from Steam Generator 11 hi-hi Level.Caused by Inadvertent Overfill of Generator.Level Returned to Normal.Operator Counseled

:on 851026,w/unit in Mode 3,ESF Actuation Signal Received from Steam Generator 11 hi-hi Level.Caused by Inadvertent Overfill of Generator.Level Returned to Normal.Operator Counseled

ML20137X852
Person / Time
Site:	Cook
Issue date:	03/06/1986
From:	Blind A, Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
LER-85-054, LER-85-54, NUDOCS 8603120025
Download: ML20137X852 (2)

LER-1985-054, on 851026,w/unit in Mode 3,ESF Actuation Signal Received from Steam Generator 11 hi-hi Level.Caused by Inadvertent Overfill of Generator.Level Returned to Normal.Operator Counseled

Event date:
Report date:
3151985054R00 - NRC Website

text

NRC Feve 304 U S. NUCLtJ.JJ Et;ULI TORY COMMISSION PB 4J ?

APPROYtD OMS NO. 3190-G10.

LICENSEE EVENT REPORT (LER)

FACILITY NAME (1)

DUCK E T NUMBE R (2)

PAG 6 Os D.

C.

COOK NUCLEAR PLAN", UNIT 1 0 15101010131115 1 l0Fl 011 TITLE I.i ESP SIGNAL FROM HIGII STEAM GENERATOR LEVEL EVENT DATE Ill LER NUMSER (6)

REPORT DATE (71 OTHER F ACILITIES INVOLVED 18 MONTH DAY YEAR YEAR h

79'*[j MONTH DAY VEAR F ACILITV Nauts DOCKE 7 NUMBERist u15l0l0lo1 l l 1l 0 2l6 8

5 8l5 0l 5l 4

- 0l1 0l3 0l6 8l6 0 1 51 0 1 0 1 0 1 1 I THIS REPORT l$ SUSMITTED FUR 8UANT TO THE REQUIREMENTS OF 10 CFR Q. ICAsr. ene er more of rAe fone*wn,J titi 3

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20. 06(sH1HN) 80.73(aH2Het 90.73lall2H.siilis) 20 06teH1H.)

50.73teH2Hshi 80.731sH2Hal LICENSEE CONTACT FOR THIS LE R (til TILIPHONE NUMSER NJ.U E AME A CODE 5 -l5l9l0l1 A.

A.

BLIND - ASSISTANT PLANT MANAGER 6l1g6 4;6 i 1

COMPLETE ONS LINI POR RACH COMPONth? F AILURE DESCRIBED IN THIS REPORT 1131 OmfA u A

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I l I l l i MONTH DAY YEAR SUPPLEMENTAL REPORT G RPECTED 1946 SUSMIS$lON 155 (19 yea, eeme,ene IM!GCTIO Sv0MisstON DA ft!

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.m,e.,,,e,ee.,,,,ee ae w,,e,,,, n e, illIS REVISION IS SUBrili' RED 'IO CIARIFY kORDING USED TO DESCRIBE TilIS LVFNr.

ON OCIOBER 26,1985, AT 2236 !!OURS WITH UNIT 1 IN MODE 3 UICJr STNJDBY), NJ ESP ACTUATION SIGNAL (TURBINE TRIP /FEEDWATER ISOIATION) WAS PEEEIVED FIG 1 titNBER 11 STEAM GENEPA70R llIGH HIGli LEVEL. 71IFRE WAS NO At/IWATIC AC'IUlsTION OF Pfl#r EQUIP!E2TT, FS TIIE FEFIMATrJ1 SYST121 WAS ISOIATED NO TIIE TURBINE ES TitIPPED AT TifE TIME TIIE SIGNAL WAS RECEIVFD.

TIIE ESP SIGNAL NAS CAUSED BY TIIE INADVERTEfff OVERFIIL OF NUMBER 11 STIM GEtJERNIOR. 'IlfE STEN 4 GENERNIOR IJNEL MS BEING MAINTAILT:D AT TIIE 60 PEICE?TP LEVEL TO PERFDPM A TFMPEPIGURE DE' REC'IDR CPOSS CALIBhATION PROCEDURE.

TE24PEIWIUPE CIIN;GES AND FEEDWATFR VALVE LEAKBY INCRFASED IEVEL 70 68 PERCD?P CAUSING 71tE TRIP SIGNAL. TIIE LICENSED OPEIWIOR COfflTOILING TIIE LEVEL WAS Alfo DJGAGED IN S!!It'r 'IUPUOVER h1(ILE !GITORitKI TIIE LEVEL. TIIERE h7\\S No hAINING OF INCPFASING LEVEL Ni A STNJDING llIGI DEVIATION AI AIN llAD BEEN IN EFFEIT, SINCE STF141 GENEPA70R IINEL WAS TAVEN ABOVE 50 PEICHTT FOlt Tl!E CPOSS CALIBRATION.

IMMEDIATE ACTIm WAS TAFDJ 'IU PPIURN IJNEL TO NORMAL H;D TIIERE WAS t;O TIIREAT 'ID TIIE IIEALT!! AND SAFLTY OF 71IE PUBLIC.

iO PREVI?1T DIEURPHEE, A WCPK ORDETI II/S BEEN ISSUID 'IO I?NESTICATE LFAFBY OF TIIE FEEDWATER VAINES AND 11fE OPEPATOR !!AS BII21 COUNSTIJD ON NI'117?rION 'IU IXTTIFS.

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DONALD C. COOK NUCLEAR PLANT P.O. Box 468, Bridgman, Michigan 49106 (616) 466-6901 March 6, 1986 United States Nuclear Regulatory Commission Document Control Desk Washington, D.C.

20555 Operating License DPR-58 Docket No. 50-315 Document Control Manager:

In accordance with the criteria established by 10CFR50.73 entitled Licensee Event Reporting System, the following report /s are being submitted:

85-054-01 Lincerely, Q, &

ccdde*~

M W.G.

Smith, Jr.

Plant Manager

/cbm Attachment cc John E. Dolan J.G. Keppler, RO:III M.P. Alexich R.F. Kroeger H.G. Brugger R.W. Jurgensen NRC Resident Inspector R.C. Callen, MPSC G. Charnoff, Esq.

D. Hahn INPO PNSRC A.A. Blind Dottie Sherman, ANI Library File g,

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