ML18153B178

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Requests Addl Info Re 930805 & 0920 Responses to GL 93-04, Rod Control Sys Failure & Withdrawal of Rod Cluster Control Assebmlies,10CFR50.54(f)
ML18153B178
Person / Time
Site: Surry, North Anna  Dominion icon.png
Issue date: 12/14/1994
From: Buckley B, Engle L
Office of Nuclear Reactor Regulation
To: Ohanlon J
PHILIPS ELMET CORP.
References
GL-93-04, GL-93-4, TAC-M86856, TAC-M86857, TAC-M86871, TAC-M86872, NUDOCS 9412190110
Download: ML18153B178 (3)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. J.P. O'Hanlon Senior Vice President - Nuclear 5000 Dominion Blvd.

Glen Allen, Virginia 23060 December 14, 1994

SUBJECT:

NORTH ANNA AND SURRY POWER STATIONS - REQUEST FOR ADDITIONAL

  • INFORMATION (RAI) REGARDING GENERIC LETTER 93-04, "ROD CONTROL SYSTEM FAILURE AND WITHDRAWAL OF ROD CLUSTER CONTROL ASSEMBLIES, 10 CFR 50.54(f)" (TAC NO. M86856, M86857, M86871, AND M86872)

Dear Mr. O'Hanlon:

By letters dated August 5, 1993 and September 20, 1993, you responded to Generic Letter (GL) 93~04.

In your response, you discussed the possibility of conducting a new current order surveillance test and a current order timing modification.

The staff's letter dated November 10, 1994, to the Westinghouse Owners Group (WOG), approved the following documents:

(1) WCAP-13864, Rev. 1, "Rod Control System Evaluation Program," (2) Westinghouse Technical Bulletin NSD-TB-94 RO, "Rod Control CROM Timing Change," and (3) "WOG Recommended Rod Control System Surveillance Test." The current order timing modification does not affect normal rod motion, but prevents asymmetric rod withdrawal should a Salem-type failure occur. This modification was successfully tested at the Ginna Station on April 15, 1994.

The new current order surveillance test (to be done each refueling outage) verifies that no failures exist in the Rod Control System current order circuits. The staff finds that the WOG's response, as discussed in the above Westinghouse documents, is an acceptable long-term resolution to GL 93-04.

The staff requests that you either commit to implement the current order timing modification and the new current order surveillance test (to be done each refueling outage), as described in the above Westinghouse documents, prior to startup from the next refueling outage that begins later than three months from receipt of this letter, or provide an alternative long-term plan and schedule. The staff also encourages you to consider implementation at your first opportunity.

We request your response within 30 days from receipt of-this letter.

In addition, after you have implemented the current order timing modification and* the new current order surveillance test, you are requested to inform the staff in writing.

The information collection contained in this request is covered by the Office of Management and Budget clearance number 3150-0011, which expires July 31, 1997.

The public reporting burden for this collection of information is covered by the original estimate, which was estimated to average 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> per response, including the time for reviewing instructions, searching

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Virginia Electric & Power Company cc:

Mr. William C. Porter, Jr.

County Administrator Louisa County P.O. Box 160 Louisa, Virginia 23093 Michael W. Maupin, Esq.

Hunton and Williams Riverfront Plaza, East Tower 951 E. Byrd Street Richmond, Virginia 23219 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation P.0. Box 1197 Richmond, Virginia 23209 Old Dominion Electric Cooperative 4201 Dominion Blvd.

Glen Allen, Virginia 23060 Mr. M. L. Bowling, Manager Nuclear Licensing & Programs Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.

Glen Allen, Virginia 23060 Office of the Attorney General Supreme Court Building

  • 101 North 8th Street Richmond, Virginia 23219 Senior Resident Inspector North Anna Power Station U.S. Nuclear Regulatory Commission Route 2, Box 78 Mineral, Virginia 23117 Senior Resident Inspector Surry Power Station U.S. Nuclear Regulatory Commission 5850 Hog Island Road Surry, Virginia 23883 e

Robert B. Strobe, M.D., M.P.H.

State Health Commissioner Office of the Commissioner Virginia Department of Health P:o. Box 2448 Richmond, Virginia 23218 Regional Administrator, RII U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W, #2900 Atlanta, Georgia 30323 Mr. J. A. Stall, Manager North Anna Power Station P.O. Box 402 Mineral, Virginia 23117 Mr. J. P. O'Hanlon Senior Vice President - Nuclear 1

Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.

Glen Allen, Virginia* 23060 Mr. Michael R. Kansler, Manager Surry Power Station Post Office Box 315 Surry, Virginia 23883 Mr. Sherlock Holmes, Chairman Board of Supervisors of Surry County Surry County Courthouse Surry, Virginia 23683

- December 14, 1994 completing and reviewing the collection of information.

Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to the Information and Records Management Branch (T-6 F33), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202 (3150-0011), Office of Management and Budget, Washington, DC 20503.

(Original Signed By)

Leon B. Engle, Project Manager Project Directorate II-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-338, 50-339 50-280, 50-281 cc:

See next page DISTRIBUTION:

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DVerrelli, Region II, DRPE TAlexion MChatterton OFFICE LA:PDII-2 PM:P NAME DunningfciR DATE COPY Sincerely, (Original Signed By)

Bart C. Buckley, Sr. Project Manager Project Directorate II-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation PM: PDII-BBuckle