05000269/LER-1982-001, Forwards LER 82-001/03L-0.Detailed Event Analysis Encl

Forwards LER 82-001/03L-0.Detailed Event Analysis Encl

ML20041F854
Person / Time
Site:	Oconee
Issue date:	03/05/1982
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20041F855	List: 05000269/LER-1982-001, Forwards LER 82-001/03L-0.Detailed Event Analysis Encl 05000269/LER-1982-001-03, /03L-0:on 820203,motor Driven Emergency Feedwater Pump 1B Declared Inoperable Due to Bearing Vibration Exceeding Acceptable Limits.Caused by Misalignment Between Pump & Motor.Pump & Motor Realigned & Tested Satisfactorily
References
NUDOCS 8203170482
Download: ML20041F854 (2)

LER-1982-001, Forwards LER 82-001/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2691982001R00 - NRC Website

text

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93 DUKE Powen COMPANY Powen Uu Lorno 422 Sourra nu STnEET, CruutorTe, N. C. 2e242 g imp.10 WILLIAM O. PA R M E R, J M, Vice PassioENT ftL EPnose t:AACA 704

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s Mr. James P. O'Reilly, Regional Administrator

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Atlanta, Georgia 30303 r:1

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/(,y Re: Oconee Nuclear Station g

Docket No. 50-269

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Dear Mr. O'Reilly:

Please find attached Reportable Occurrence Report R0-269/82-01. This report is submitted pursuant to Oconee Nuclear Station Technical Specifica-tion 6.6.2.1.b(2) which concerns operation in a degraded mode permitted by a limiting condition for operation, and describes an incident which is considered to be of no significance with respect to its effect on the health and safety of the public.

Very truly yours,

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William O. Parker, Jr.

JFK/php Attachment cc: Director Records Center Office of Management & Program Analysis Institute of Nuclear Power Operations U. S. Nuclear Regulatory Commission 1820 Water Place Washington, D. C. 20555 Atlanta, Georgia 30339 Mr. W. T. Orders NRC Resident Inspector Oconee Nuclear Station UFFICIAL COPf O!ho00k9 bhb A

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h DUKE POWER COMPANY OCONEE NUCLEAR STATION UNIT 1 Report Number: RO-269/82-01 Report Date: March 5, 1982 Occurrence Date: February 3, 1982 Facility: Oconee Unit 1, Seneca, South Carolina Identification of Occurrence:

1B Motor Driven Emergency Feedwater Pump inoperable.

Conditions Prior to Occurrence: 50% FP Description of Occurrence: On February 3, 1982, the 1B Motor Driven Emergency Feedwater Pump was declared inoperable due to a bearing vibration which exceeded the acceptable limit. This problem was identified during the periodic vibration testing of the pump.

Apparent Cause of Occurrence: The cause of this incident was misalignment between the pump and the motor, causing the excessive vibration.

Analysis of Occurrence: During this incident the Turbine Driven Emergency Feedwater Pump and the other Motor Driven Emergency Feedwater Pump were l'

both operable. These pumps have sufficient capacity to supply feedwater to the steam generators for decay heat removal in the event of a reactor trip and a loss of main feedwater.

Thus, the health and safety of the public were not affected by this incident.

Corrective Action

The pump and motor were uncoupled and aligned to within the specified tolerances. The vibration test on the bearings was repeated after the alignment with satisfactory results, and the 1B Motor Driven Feedwater Pump was declared operable, f

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