ML18041A163

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Forwards LER 87-004-01 Detailing Loss of Red Instrument Bus During Replacement of Battery Cell.Encl Delayed Due to Depth of Investigation
ML18041A163
Person / Time
Site: Point Beach NextEra Energy icon.png
Issue date: 11/20/1987
From: Fay C
WISCONSIN ELECTRIC POWER CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML18041A162 List:
References
CON-IIT07-773-91, CON-IIT7-773-91, CON-NRC-87-118 NUREG-1455, VPNPD-87-511, NUDOCS 8712010218
Download: ML18041A163 (2)


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,<<yr Wisconsin Electiic,'>>0kiR;cggp,jj, 231 W. MICHIGAN,P.O, BOX 2046, QILWAUI<EE,WI 5320't (414) 221 2345 VPNPD-87-511 "'","'.", CFR 50.73 NRC 87 118 '"

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I November 20, 1987',-'

I It U. S. NUCLEAR Control REGULATORY'(COMMISSION)','ocument D. C.;>;20555I .Deski~'ashington, I I'I 1 II1'entlemen:

DOCKET 50 266 yg "'"'

EVENT REPORT'<87-004-'1>< 'ICENSEE LOSS OF THE RED INSTRUMENT'>BUSl.

POINT BEACH NUCLEAR'<PLANT'">>UNIT<1;

Attached is Licen*seel'Eve1nt<Report',j87.=,004-01, for Point Beach Nuclear Plant, Unit~'1,,:;detailiiig th'e~>loss of the red instrument bus during a replace>>mentt!:,'of".(a>,'bat:teiyi',cell. The batt ery and associated DC bus'"are ,ctommon',-to~+both~'units. ,,

II LER 87-004-01 is operation or condition,'1that'<resulted~~",in manual or au tomatic filed'~pursuant'>to~'(10i.CFR '50. 73 ( a) (2 )(iv), "Any actuation of any engineeredl)safety'Ifeature (ESF), ineluding the reactor protection.,systems,';(RPS);'I" We had noted in the"original'".LER'>>;that-'~we>>expected th is supplement to be filed',",by.10ct>>tobe',!1';; ~1987.'he dept h of the investigation has'aused'jth'e>~r'epo4rt '<to'~1be 'delayed. We discussed the timing with the senior4Residen011Inspector.

If any further information. i',,',required; please contact us.

Very truly yours, 4.//

i C. W. Fay Vice President Nuclear Power gt, w

Enclosure Copies to NRC Resident,Inspi ctor.',

NRC Regional Admini1stiator; 'Region III erat.~t02>>g 87>>>>2,I 8

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