ML19340D989

Forwards IE Circular 80-23, Potential Defects in Beloit Power Sys Emergency Generators. No Written Response Required

ML19340D989
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	10/31/1980
From:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Linder F DAIRYLAND POWER COOPERATIVE
References
NUDOCS 8101060109
Download: ML19340D989 (1)

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G LEN ELLYN, ILUNOIS 6013 7 OCT 31500 Those on Attached Address Listing:

Enclosed is IE Circular No. 80-23 which requires consideration by you with regard to your nuclear power facility.

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

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' James G. Keppler Director

Enclosure:

IE Information Notice No. 80-23 cc w/ encl:

Mr. D. W. Kane, Sargent & Lundy Reproduction L' nit NRC 20b l

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RIII's CORPORATE ADDRESSES FOR OPERATING LICENSEES AND CONSTRUCTION PERMIT HOLDERS (BWR's and PWR's)

Docket No. 50-329 Docket No. 50-330

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Docket No. 50-409 Dairyland Power Cooperative ATTN:

Mr. F. W. Linder i

General Manager 2615 East Avenue - South La Crosse, WI 54601 cc w/ enc 1:

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SSINS No.: 6830 Accession No.:

8008220243 IEC 80-23 UNITIED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D. C. 20555 October 31, 1980 IE Circular No. 80-23:

POTENTIAL DEFECTS IN BEL 0lT POWER SYSTEMS EMERGENCY GENERATORS BACKGROUND This circular addresses a potential deficiency involving the field leads of generators manufactured by Beloit Power Systems.

It is known that the subject generators have been coupled with Fairbanks Morse diesel engines for use in nuclear power facilities; however, it is not known whether they have been coupled with other diesel engines 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 Nuclear 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 NRC Duty Officer, personnel from Prairie Island Nuclear Power Station, Mr. Beadle of Fairbanks Morse and Mr. C. Evenson of Beloit Power Systems, the principal spokesman.

The purpose of this call was to describe an inspection method which Prairie Island personnel could use to examine the field lead assemblies of their gen-erators for the potential defect.

(We 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 disseminate this information on a timely basis, the NRC Duty l

Officer at Bethesda called those operating facilities which he knew were using the suspect generators on September 20 and 21, 1980.

The information conveyed included a description of the potential defect and a description of the aforementioned inspection method.

The operating facilities called were:

FACILITY N0. OF UNITS Calvert Cliffs 1 and 2 3

Crystal River 3 2

Hatch 1 and 2 5

Duane Arnold 2

North Anna 1 and 2 4

Millstone 1 and 2 3

Robinson 2 2

Prairie Island Vermont Yankee M

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