ML040700512

Extended Inverter Allowed Outage Time, Revised Required Action Completion Time for Proposed Risk-Informed Technical Specifications Change

ML040700512
Person / Time
Site:	North Anna
Issue date:	03/09/2004
From:	Grecheck E Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
03-494B
Download: ML040700512 (2)

Text

VIRGINIA ELECTRIC A N D POWER COMPANY RICHMOND, VIRGINIA 23261 March 9 , 2004 U. S. Nucl a Regulatory Commission Serial No. 03-494B Attention: Document Control Desk NLOS/JHL Washington, D.C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)

PROPOSED RISK-INFORMED TECHNICAL SPECIFICATIONS CHANGE Dominion letters dated December 13, 2002 (Serial No.02-758), December 17, 2003 (Serial No.03-494), and February 12, 2004 (Serial No. 03-494A) requested an amendment to Facility Operating License Numbers NPF-4 and NPF-7 in the form of a change to the Technical Specifications for North Anna Power Station Units 1 and

2. The proposed change would revise the Completion Time of Required Action A.l of Technical Specification 3.8.7, Inverter-Operating, from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 7 days based on a risk-informed evaluation for an inoperable inverter. The amendment request included compensatory measures when an instrument bus inverter is unavailable.

The amendment request included a request for a 30-day implementation timeframe.

Due to the recent inclusion of compensatory measures in the amendment request, several additional procedure revisions are required. Based on the latest schedule for completing this licensing action, the increased procedure scope will occur concurrent with preparing procedure revisions for the upcoming spring refueling outage for North Anna Unit 2. The concurrent activities require additional time for implementation of the license amendment. Therefore, we request a 90-day implementation timeframe following NRC approval of the license amendment.

Should you have any questions or require additional information, please contact Mr.

Thomas Shaub at (804) 273-2763.

Very truly yours, Eugene S. Grecheck Vice President - Nuclear Support Services

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

Old Dominion Electric Cooperative lnnsbrook Corporate Center 4201 Dominion Blvd.

Suite 300 Glen Allen, VA 23060 Commissioner Bureau of Radiological Health 1500 East Main Street Suite 240 Richmond, VA 23218 Mr. M. T. Widmann NRC Senior Resident Inspector North Anna Power Station Mr. S. R. Monarque NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 8-HI2 Rockville, MD 20852