ML20063C200

Interim Deficiency Rept Re Degraded Reactor Coolant Pump Closure Studs.Initially Reported on 820804.Investigation of Incident & Preparation of Rept Incomplete Due to Difficulty in Removing Affected Studs.Next Rept Expected by 820901

ML20063C200
Person / Time
Site:	Oconee
Issue date:	08/12/1982
From:	Tucker H DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8208270125
Download: ML20063C200 (2)

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DUKE POWEH COMPANY GENEltAL OFFICES ff"d!!

422 SOUTH CHURCH STREET CIIAIUMPTE. N. C. 28242 August 12, 1982 Mr. James P. O'Reilly, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Re: Oconee Nuclear Station Docket No. 50-287

Dear Mr. O'Reilly:

On August 4,1982 your office was informed that five of the Reactor Coolant Pump closure studs were determined to be degraded in size below acceptable limits.

The studs involved are Nos. 18, 19, and 20 on RCP 3A2 and Nos. 7 and 8 on RCP 3A1.

This constitutes performance of c>mponents that requires remedial action to prevent operation in a manner less conservative than assumed in the accident analyses in the safety analysis report. Reportable Occurrence Report R0-287/82-09 providing details of this incident was to have been submitted to you by August 18, 1982, pursuant to Technical Specification 6.6.2.1.a(9).

However, the investiga-tion of this incident and the preparation of a report are incomplete at this I

time due to difficulties in removing the affected closure studs.

It is expected that the investigation and report will be completed, reviewed, and submitted to you by September 1, 1982.

Very truly yours, fd cM

, B. Tucker, Vice President Nuclear Production Department L

iv JFN/php cc: Document. Control Desk U. S. Nuclear Regulatory Commission Washington, D. C. 20555

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Mr. W. T. Orders

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NRC Resident Inspector Oconee Nuclear Station t

Records Center i

Institute of Nuclear Power Operations 1820 Water Place Atlanta, Georgia 30339 OFFICI AI. C01'Y i

8208270125 820812 PDR ADOCK 05000287 7EAL S

PDR

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Mr. James P. O'Reilly Regional Administrator August 12, 1982 Page 2 cc:

Mr. Philip C. Wagner Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555