ML093060342

From kanterella
Jump to navigation Jump to search
One Time Extension of the Completion Time for 1 J - 480 Volt AC Distribution Subsystem Withdrawal of License Amendment Request
ML093060342
Person / Time
Site: North Anna Dominion icon.png
Issue date: 10/30/2009
From: Price J
Virginia Electric & Power Co (VEPCO)
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
09-301A
Download: ML093060342 (2)


Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 October 30, 2009 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)

NORTH ANNA POWER STATION UNIT 1 ONE TIME EXTENSION OF THE COMPLETION TIME FOR 1 "J" - 480 VOLT AC DISTRIBUTION SUBSYSTEM WITHDRAWAL OF LICENSE AMENDMENT REQUEST Serial No.

NL&OS/ETS Docket No.

License No.

09-301A 50-338 NPF-4 In a July 23, 2009 letter (Serial No.09-301), Dominion requested an amendment to the Facility Operating License, in the form of changes to the Technical Specifications to Facility Operating License Number NPF-4 for North Anna Power Station Unit 1. Dominion had requested that the proposed change be reviewed on an expedited basis to proactively address conditions after North Anna Unit 1 experienced a small fire in a breaker for a control rod drive mechanism (CRDM) fan. The proposed change would have revised Technical Specification (TS) 3.8.9 Condition A, by adding a note to allow a one-time 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Completion Time to interrogate a failed breaker and the associated Unit 1 "J" 480 Volt emergency bus switchgear to ensure the emergency power system continues operation in a reliable condition for the remainder of the operating cycle.

On October 23, 2009 North Anna Unit 1 was shut down due to leakage in the letdown system.

With the unit off line, Dominion was able to remove the affected breaker and perform an inspection of the Unit 1 "J" 480 Volt emergency bus switchgear. Therefore, the one time 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Completion Time is no longer necessary and Dominion is hereby withdrawing the amendment request.

If you have any further questions or require additional information, please contact Mr. Thomas Shaub at (804) 273-2763.

Very truly yours, Price President - Nuclear Engineering Commitments made in this letter: None

cc:

U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW Suite 23T85 Atlanta, Georgia 30303 Mr. J. E. Reasor, Jr.

Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd.

Suite 300 Glen Allen, Virginia 23060 State Health Commissioner Virginia Department of Health James Madison Building - i h Floor 109 Governor Street Suite 730 Richmond, VA 23218 NRC Senior Resident Inspector North Anna Power Station Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike MaiI Stop 08 - G9A Rockville, Maryland 20852-2738 Ms. K. R. Cotton NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike MaiI Stop 08 - G9A Rockville, Maryland 20852-2738 Serial No.09-301 A Docket No. 50-338 Withdrawal of LAR Extension of CT for 1 "J" 480 v MCC Page 2 of 2