05000409/LER-1982-008, Forwards LER 82-008/03L-0.Detailed Event Analysis Submitted

Forwards LER 82-008/03L-0.Detailed Event Analysis Submitted

ML20054H547
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	06/16/1982
From:	Linder F DAIRYLAND POWER COOPERATIVE
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20054H548	List: 05000409/LER-1982-008, Forwards LER 82-008/03L-0.Detailed Event Analysis Submitted 05000409/LER-1982-008-03, /03L-0:on 820517,high Pressure Svc Water Diesel Pump 1A Failed to Start.Caused by Chewed Gear in Starter Motor.Gear & Starter Motor Replaced
References
LAC-8352, NUDOCS 8206240190
Download: ML20054H547 (2)

LER-1982-008, Forwards LER 82-008/03L-0.Detailed Event Analysis Submitted

Event date:
Report date:
4091982008R00 - NRC Website

text

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/RYLAND COOPERATNE

• P.O BOX 817

• 2615 EAST AV SOUTH

• LA CROSSE. WISCONSIN 54601 (608) 788 4000 June 16, 1982 In reply, please refer to LAC-8352 DOCKET NO. 50-409 Mr. James G. Keppler, Regional Director U. S. Nuclear Regulatory Commission Directorate of Regulatory Operations Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 SUBJECT: DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)

PROVISIONAL OPERATING LICENSE NO. DPR-45 REPORTABLE OCCURRENCE NO. 82-08

REFERENCES:

(1) LACBWR Technical Specifications, Section 6.9.1.9.b (2) LACBWR Technical Specifications,RR, Section 4.2.18.1

Dear Mr. Keppler:

In accordance with Reference 1, this is to inform you of entry into a degraded mode permitted by a limiting condition for operation.

Reference 2 requires that two high pressure diesel driven pumps be operable at all times.

At 1022 on May 17,1982, during a refueling outage, the 1A High Pressure Service Water (HPSW) Pump failed to start during the conduct of a surveillance test on the IB HPSW Pump. The 1B High Pressure Service Water Pump did start and run successfully.

The 1A HPSW diesel was examined.

The starter motor was found to be burnt out and its gear was in a chewed condition, with metal pealed back from each tooth.

It appeared that the gear may have tried to re-engage the engine flywheel after the flywheel was rotating.

The motor then burned out due to overload, since the gear was not properly engaged.

The starter motor and engagement gear were replaced.

The engine flywheel was inspected and found to be in good condition. The 1A HPSW diesel pump was returned to service and tested satisfactorily at 1400 on May 17, 1982.

The starter engagement gear and starter motor were also inspected on the 18 7

HPSW diesel pump.

No defects were noted.

7 8206240190 020616 PDR ADOCK 05000409 i

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dVN 21 1982'

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Mr. James G. Keppler, Regional Director June 16, 1982

'U. S. Nuclear Regulatory Commission LAC-8352 i

A Licensee Event Report (Reference: Regulatory Guide 1.16, Revision 4) is i

enclosed.

.If there are any questions, please contact us.

Very truly yours, DAIRYLAND POWER COOPERATIVE vYuf) &ltD/x I

Frank Linder, General Manager FL:LSG:ene Enclosures cc:

Document' Control Desk U. S. Nuclear Regulatory Commission Washington, D. C.

20555 INPO Institute of Nuclear Power Operations 1820 Water Place Atlanta, GA 30339 NRC Resident Inspector l

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