05000266/LER-1987-004-01, Forwards LER 87-004-01 Detailing Loss of Red Instrument Bus During Replacement of Battery Cell.Encl Delayed Due to Depth of Investigation

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
Issue date:	11/20/1987
From:	Fay C WISCONSIN ELECTRIC POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML18041A162	List: 05000266/LER-1987-004-01, Forwards LER 87-004-01 Detailing Loss of Red Instrument Bus During Replacement of Battery Cell.Encl Delayed Due to Depth of Investigation
References
CON-IIT07-773-91, CON-IIT7-773-91, CON-NRC-87-118 NUREG-1455, VPNPD-87-511, NUDOCS 8712010218
Download: ML18041A163 (2)

LER-1987-004, Forwards LER 87-004-01 Detailing Loss of Red Instrument Bus During Replacement of Battery Cell.Encl Delayed Due to Depth of Investigation

Event date:
Report date:
2661987004R01 - NRC Website

text

(414) 221 2345 Beach instrument ery and

)(iv), "Any tomatic eluding the is h of the We discussed 0

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,<<yr Wisconsin Electiic,'>>0kiR;cggp,jj, 231 W. MICHIGAN,P.O, BOX2046, QILWAUI<EE,WI 5320't VPNPD-87-511

"'","'.",'0 CFR 50.73 NRC 87 118 i", ','..

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I November 20, 1987',-'

I It U. S.

NUCLEAR REGULATORY'(COMMISSION)','ocument Control

.Deski~'ashington, D.

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II1'entlemen:

DOCKET 50 266 yg "'"'

'ICENSEE EVENT REPORT'<87-004-'1><

LOSS OF THE RED INSTRUMENT'>BUSl.

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

Attached is Licen*seel'Eve1nt<Report',j87.=,004-01, for Point Nuclear Plant, Unit~'1,,:;detailiiig th'e~>loss of the red bus during a replace>>mentt!:,'of".(a>,'bat:teiyi',cell.

The batt associated DC bus'"are,ctommon',-to~+both~'units.

II LER 87-004-01 is filed'~pursuant'>to~'(10i.CFR

'50. 73 ( a) ( 2 operation or condition,'1that'<resulted~~",in manual or au actuation of any engineeredl)safety'Ifeature (ESF), in reactor protection.,systems,';(RPS);'I" We had noted in the"original'".LER'>>;that-'~we>>expected th supplement to be filed',",by.10ct>>tobe',!1';; ~1987.'he dept investigation has'aused'jth'e>~r'epo4rt

'<to'~1be 'delayed.

the timing with the senior4Residen011Inspector.

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

Very truly yours, i /

4./

C.

W. Fay Vice President Nuclear Power w

Enclosure Copies to NRC Resident,Inspi ctor.',

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

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