ML19339C150

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Forwards IE Circular 80-23, Potential Defects in Beloit Power Sys Emergency Generators. No Written Response Required
ML19339C150
Person / Time
Site: Rancho Seco
Issue date: 10/31/1980
From: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
References
NUDOCS 8011170644
Download: ML19339C150 (1)


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October 31, 1980 Docket do. 50-312 l

Sacramento Municipal Utility District P. O. Box 15830 4

Sacramento, Califernia 95813 Attention:

Mr. John J. Mattimoe Assistant Ger.eral Manager Gentlemen:

Enclosed is IE Circular No. 80-23 which requires consideration by you with 1

regard to your nuclear power facility.

t Should you have any questions regarding this circular or the actions recommended therein, please contact this office.

Sincerely, R."H/'Endelken'f W

Director

Enclosures:

1.

-IE Circular No. 80-23 2.

Recently Issued IE Circulars cc w/ enclosures:

R. J. Rodriguez, SMUD L. G. Schwieger, SMUD 2

4 8011170(oW 0

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l SSIflS tio. : 6830 Accession flo. :

8008220243 IEC 80-23 UtlITIED STATES T1UCLEAR PEGULATORY COMfilSSI0fl 0FFICE OF IftSPECTI0ft Af1D EtlFORCEMEflT UASHINGT0fl D. C. 20555 Octot:er 31, 1980 IE Circular f!o. 80-23 : POTEtiTIAL DEFECTS Ifl BEL 11T POWER SYSTEMS EMERGEf!CY GENERATORS i

BACKGROUTID This circular addresses a potential deficiency involving the field leads of generators r.anufactured by Beloit Power Systems.

It is known that the subject generators have been couoled with Fairbanks Morse diesel engines for use in nuclear power facilities; however, it is not known whether they have been couoled with other diesel enaines for such use. Accordingly, the intent of this circular is to notify all nuclear power facilities of the potential defect and to assure that appropriate remedial actions are taken, if needed.

The fluclear Regulatory Commission was first informed of the potential defect by a phone call from Mr. R. H. Beadle of the Fairbanks Morse Engine Division of Colt Industries to Mr. D. W. Hayes of Region III on September 19, 1980.

On September 20, 1980, a conference call was held between the fiRC Duty Officer, i

personnel from Prairie Island fiuclear Power Station, ifr. Beadle of Fairbanks Morse and Mr. C. Evenson of Beloit > ' wer Systems, the principal spokesman.

The purpose of this cail was to describe an inspecticn method which Prairie i

Island personnel could use to examine the field lead assemblies of their gen-erators for the potential defect.

(L'e have since been informed by the Resident Inspector that the field lead assemblies of the Prairie Island generators did not have the suspected defects.)

In order to disseninate this infornation on a timely basis, the flRC Duty Officer at Bethesda called those operating facilities which he knew were using the suspect generators on Septenber 20 and 21,1980. The information conveyed included a description of the potential defect and a description of the aforenentioned inspection method.

The operating facilities called were:

FACILITY fl0. OF UilITS Calvert Cliffs 1 and 2 3

Crystal River 3 2

Hatch 1 and 2 Duane Arnold florth Anna 1 and 2 Millstone 1 and 2 DUPLICATE DOCUMENT Robinson 2 Prairie Island Entire document previously entered into system under:

Pe Potto and 3 ANO _ D D Nh D M ~D Arkansas fluclear One, Un No. of pages:

6

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