ML20011A744

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Forwards LER 81-018/03L-1.Detailed Event Analysis Encl
ML20011A744
Person / Time
Site: Oconee Duke Energy icon.png
Issue date: 10/20/1981
From: Parker W
DUKE POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20011A745 List:
References
NUDOCS 8110290375
Download: ML20011A744 (2)


Text

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Mr. James P. O'Reilly, Director gx s'Of U. S. Nuclear Regulatory Commission p Region II 101 Marietta Street, Suite 3100 '

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Re: Oconee Nuclear Station Q.. %c[l Docket No. 50-269 p

Dear Mr. O'Reilly:

p1 Please find attached Reportable Occurrence Report R0-269/81-18, Revision 1, which contains amplification of the Description of Occurrence section of the original submittal. This report is submitted pursuant to Oconee Nuclear Station Technical Specification 6.6.2.1.b(3). which concerns observed in-adequacies in the implemertation of procedural controls during operation of a unit which could cause a reduction in the degree of redundancy provided by the Reactor Protection and Engineered Safety Feature Systems, 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.

Ve truly yours,

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l William O. Parker, Jr.

i WOP:JFK:Is 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. F. Jape NRC Resident Inspector.

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DUKE POWER COMPANY OCONEE NUCLEAR STATION REPORT NUMBER: R0-269/81-18 REPORT DATE: October 9,1981 OCCURRENCE DATE: September 11, 1981 FACILITY: Oconee Nuclear Station, Seneca, South Carolina IDENTIFICATION OF OCCURRENCE: Safety-related battery surveillance procedures not in compliance with Technical Specificitions.

CONDITIONS PRIOR TO OCCURRENCE: Oconee 1 Cold Shutdown Oconee 2 Cold Shutdown Oconee 3 100% FP DESCRIPTION OF OCCURRENCE: On September 11, 1981 it was determined that the safety-related battery surveillance procedures did not fully comply with the requirements of Technical Specification 4.6.9. The surveillance procedures did not require (1) weekly pilot cell electrolyte level checks; (2) corrections to specify gravity readings for variations in cell electrolyte level; or (3) quarterly verification that individual cell specific gravity readings are not less than 0.010 below the specific gravity average of all cells. This Technical Specification was revised in May 1980; therefore this discrepancy existed for approximately sixteen months.

APPARENT CAUSE OF OCCURRENCE: Personnel failed to identify necessary changes to safety-related battery surveillance procedures after implementation of a change to Technical Specification 4.6.9.

ANALYSIS OF OCCURRENCE: The safety-related batteries were not rendered inoperable due to the surveillance procedure inadequacies; thus, the health and safety of the public were not af fected by this incident.

CORRECTIVE ACTION: Changes have been initiated to the appropriate surveillance procedures to incorporate the Technical Specification requirements for safety-related battery surveillance. Personnel involved in the review of Technical Specification changes have been counselled relative to this incident.