ML102710267

Withdrawal of Amendment to Technical Specification 3.8.1, AC Sources Operating

ML102710267
Person / Time
Site:	Mcguire, McGuire
Issue date:	09/15/2010
From:	Repko R Duke Energy Carolinas, Duke Energy Corp
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML102710267 (2)

Text

REGIS T. REPKO

~Duke Vice President PtEnergy McGuire Nuclear Station Duke Energy MGO0 VP / 12700 Hagers Ferry Rd.

Huntersville, NC 28078 980-875-4111 980-875-4809 fax regis.repko@duke-energy.com September 15, 2010 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001

Subject:

Duke Energy Carolinas, LLC (Duke Energy)

McGuire Nuclear Station, Units 1 and 2

.Docket Nos. 50-369 and 50-370 Withdrawal of Amendment to Technical Specification 3.8.1, "AC Sources-Operating"

Reference:

Letter from Duke Energy to NRC dated April 26, 2010 The reference letter submitted a License Amendment Request (LAR) to revise Technical Specification 3.8.1 for McGuire Units 1 and 2. The LAR proposed a revision to TS Surveillance Requirement 3.8.1.14 by modifying the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> emergency diesel generator (EDG) endurance test whereby the two hour test at 105-110 % of continuous duty rating would no longer be required to be performed on a routine (18 months) basis as long as the maximum EDG loading remains at or below the machine's continuous duty rating of 4000 kW.

In a July 12, 2010 telecom between Duke Energy and NRC staff, questions arose regarding the dynamic loading analysis. During this telecom, the staff expressed a need to review and approve every plant change that might impact the dynamic analysis. As a result of this discussion and further review by Duke Energy. regarding the financial and schedule impact associated with the NRC requested reviews, Duke Energy withdraws the requested License Amendment.

Please direct any questions you may have in this matter to P. T. Vu at (980) 875-4302.

Very truly yours, Regis T. Repko www. duke-energy com

U. S. Nuclear Regulatory Commission September 15, 2010 Page 2 xc:

L. A. Reyes Administrator, Region II U. S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, GA 30303-1257 J. B. Brady NRC Senior Resident Inspector McGuire Nuclear Station J. H. Thompson (addressee only)

NRC Project Manager U. S. Nuclear Regulatory Commission Mail Stop 0-8 G9A Washington, DC 20555-0001 W. L. Cox, Ill, Section Chief Division of Environment Health, Radiation Protection Section North Carolina Department of Environmental and Natural Resources 1645 Mail Service Center Raleigh, NC 27699-1645