ML20009H270

RO:810319 Determination Declaring Portions of Low Power Injection Sys Seismically Inoperable Was Premature.Hanger Noncomformance Repaired within 48-h Per IE Bulletin 79-14. Item Not Reportable Per Tech Spec 6.6.2.1a(9)

ML20009H270
Person / Time
Site:	Oconee
Issue date:	04/01/1981
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-79-14, NUDOCS 8108070129
Download: ML20009H270 (1)

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• DUKE POWER COMPANYI E7i OFF707,,g ,

l Powzu Butt.ntxo  % l 422 Socin Gnuncu Srazzi, Cruh z N. C. 2824a fj 3

April 1, 1981

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WCE PatslOENT TEL EPMON t:AntA 704 Strau PaooucTion 373-4(,83 )

Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Re: Oconee Nuclear Station Docket No. 50-270

Dear Mr. O'Reilly:

At approximately 0900 hours0.0104 days <br />0.25 hours <br />0.00149 weeks <br />3.4245e-4 months <br /> on March 19, 1981, Oconee Nuclear Station was informed of a hanger nonconformance identified pursuant to OIE Bulletin 79-14 which required declaring a portion of the Unit 2 LPI system seismically inoperable. The portion involved was from 2LP-47 to the core flood line branch. Sir.ce Unit 2 was at cold shutdown at the time, no LCO's were involved. However, it wr.s determined that a report was required by Technical Specification 6.6.2.la(9): " Discovery during unit life . . . that require remedial action or corrective measures to prevent the existence or develop-ment of an unsafr :ondition." The 24-hour notification to NRC Region II was made on March 19, 981, in addition the telecopy was transmitted on March 19, 1981.

It has since been learned that the declaring of the affected portion of the LPI system seismically inoperable was premature, in that the 48-hour period permitted by Bulletin 79-14 for correction of the nonconformance and/or analysis of the affect on system operability had not expired. The hanger nonconformance was repaired within the 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> permitted and the analysis of the affect on system operability was terminated.

In light of this fact, it is now considered that this item is not reportable pursuant to Technical Specification 6.6.2.la(9).

Very truly yours, g@7 d/ ' ~

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,k William O. Parker, Jr.

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