ML061030015

RAI, Relief Request RI-05 for the 4th ten-year Service Inspection Interval

ML061030015
Person / Time
Site:	Cooper
Issue date:	04/14/2006
From:	Brian Benney Plant Licensing Branch III-2
To:	Edington R Nebraska Public Power District (NPPD)
Benney B, NRR/DLPM, 415-3764
References
TAC MD0280
Download: ML061030015 (5)

Text

April 14, 2006 Mr. Randall K. Edington Vice President-Nuclear and CNO Nebraska Public Power District P. O. Box 98 Brownville, NE 68321

SUBJECT:

COOPER NUCLEAR STATION - REQUEST FOR ADDITIONAL INFORMATION RE: RELIEF REQUEST RI-05 FOR THE FOURTH 10-YEAR INSERVICE INSPECTION INTERVAL (TAC NO. MD0280)

Dear Mr. Edington:

The Nuclear Regulatory Commission (NRC) staff has reviewed the information provided in the February 23, 2006, submittal and has determined that the additional information identified in this enclosure is required in order for the NRC staff to complete its review. The licensee requested NRC staff approval of the subject relief request by September 1, 2006. To meet internal scheduling dates, the NRC staff requests that the licensee provide its response no later than May 5, 2006.

Sincerely,

/RA/

Brian Benney, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298

Enclosure:

Request for Additional Information cc w/encl: See next page

April 14, 2006 Mr. Randall K. Edington Vice President-Nuclear and CNO Nebraska Public Power District P. O. Box 98 Brownville, NE 68321

SUBJECT:

COOPER NUCLEAR STATION - REQUEST FOR ADDITIONAL INFORMATION RE: RELIEF REQUEST RI-05 FOR THE FOURTH 10-YEAR INSERVICE INSPECTION INTERVAL (TAC NO. MD0280)

Dear Mr. Edington:

The Nuclear Regulatory Commission (NRC) staff has reviewed the information provided in the February 23, 2006, submittal and has determined that the additional information identified in this enclosure is required in order for the NRC staff to complete its review. The licensee requested NRC staff approval of the subject relief request by September 1, 2006. To meet internal scheduling dates, the NRC staff requests that the licensee provide its response no later than May 5, 2006.

Sincerely,

/RA/

Brian Benney, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298

Enclosure:

Request for Additional Information cc w/encl: See next page DISTRIBUTION:

PUBLIC RidsNrrDorl (CHaney/CHolden)

LPLIV r/f RidsRgn4MailCenter (KKennedy)

RidsNrrLALFeizollahi RidsNrrDorlDpr RidsNrrPMBBenney RidsOgcRp RidsNrrDorlLpl4 (DTerao)

RidsAcrsAcnwMailCenter ADAMS ACCESSION NO: NRR-088 OFFICE LPL4/PM LPL4/LA LPL4/BC NAME BBenney LFeizollahi DTerao DATE 4/14/06 4/13/06 4/14/06 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELIEF REQUEST RI-05 FOR THE FOURTH 10-YEAR INSERVICE INSPECTION INTERVAL FACILITY OPERATING LICENSE NO. DPR-46 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION DOCKET NO. 50-298 By letter dated February 23, 2006, Nebraska Public Power District (NPPD), the licensee for Cooper Nuclear Station (CNS), submitted a request for relief for U.S. Nuclear Regulatory Commission (NRC) review and approval to address the requirements of American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, Table IWC-2500-1, Examination Category C-A, Item Number C1.10. Relief Request RI-05 asserts that compliance with the examination requirements is impractical because the geometry of the subject residual heat removal (RHR) heat exchanger shell welds prevents a meaningful ultrasonic examination from being performed on the welds. In the relief request submittal, NPPD proposed that, as an alternative to the above requirement, a VT-1 visual examination would be performed of the applicable welds each inspection interval. Additionally, a VT-2 visual examination will be performed on the shell side of the RHR heat exchanger in accordance with Table IWC-2500-1, Category C-H.

The NRC staff has reviewed the information the licensee provided that supports the proposed relief request and requires the following information from the licensee to clarify the submittal:

1. The submittal dated February 23, 2006, stated that [a]s an alternative to the [ASME]

[C]ode-required examination, CNS will perform a visual examination, VT-1, of the applicable welds each inspection interval. Were the VT-1 visual examinations performed in the second and third inservice inspection (ISI) intervals for which this relief has been previously granted, and if so, what were the results of the examinations?

2. Please describe why the proposed VT-1 examination will continue to provide reasonable assurance of structural integrity through the end of the fourth ISI interval.

Cooper Nuclear Station cc:

Mr. William J. Fehrman Senior Resident Inspector President and Chief Executive Officer U.S. Nuclear Regulatory Commission Nebraska Public Power District P. O. Box 218 1414 15th Street Brownville, NE 68321 Columbus, NE 68601 Regional Administrator, Region IV Mr. Gene Mace U.S. Nuclear Regulatory Commission Nuclear Asset Manager 611 Ryan Plaza Drive, Suite 400 Nebraska Public Power District Arlington, TX 76011 P.O. Box 98 Brownville, NE 68321 Director, Missouri State Emergency Management Agency Mr. John C. McClure P. O. Box 116 Vice President and General Counsel Jefferson City, MO 65102-0116 Nebraska Public Power District P. O. Box 499 Chief, Radiation and Asbestos Columbus, NE 68602-0499 Control Section Kansas Department of Health Mr. Paul V. Fleming and Environment Licensing Manager Bureau of Air and Radiation Nebraska Public Power District 1000 SW Jackson P.O. Box 98 Suite 310 Brownville, NE 68321 Topeka, KS 66612-1366 Mr. Michael J. Linder, Director Mr. Daniel K. McGhee Nebraska Department of Environmental Bureau of Radiological Health Quality Iowa Department of Public Health P. O. Box 98922 Lucas State Office Building, 5th Floor Lincoln, NE 68509-8922 321 East 12th Street Des Moines, IA 50319 Chairman Nemaha County Board of Commissioners Mr. Keith G. Henke, Planner Nemaha County Courthouse Division of Community and Public Health 1824 N Street Office of Emergency Coordination Auburn, NE 68305 930 Wildwood P.O. Box 570 Jefferson City, MO 65102 Ms. Julia Schmitt, Manager Radiation Control Program Jerry C. Roberts, Director of Nuclear Nebraska Health & Human Services R & L Safety Assurance Public Health Assurance Nebraska Public Power District 301 Centennial Mall, South P.O. Box 98 P.O. Box 95007 Brownville, NE 68321 Lincoln, NE 68509-5007 Mr. John F. McCann, Director Mr. H. Floyd Gilzow Licensing, Entergy Nuclear Northeast Deputy Director for Policy Entergy Nuclear Operations, Inc.

Missouri Department of Natural Resources 440 Hamilton Avenue P. O. Box 176 White Plains, NY 10601-1813 Jefferson City, MO 65102-0176 February 2006