ML16141A964
| ML16141A964 | |
| Person / Time | |
|---|---|
| Site: | Oconee, Mcguire, Catawba, McGuire  |
| Issue date: | 09/25/1995 |
| From: | Berkow H NRC (Affiliation Not Assigned) |
| To: | Tuckman M DUKE POWER CO. |
| References | |
| GL-95-03, GL-95-3, TAC-M92231, TAC-M92232, TAC-M92251, TAC-M92252, TAC-M92257, TAC-M92258, TAC-M92259, NUDOCS 9510030004 | |
| Download: ML16141A964 (7) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20565-4001 so0 September 25, 1995 Mr. M. S. Tuckman Senior Vice President Nuclear Generation Duke Power Company P. 0. Box 1006 Charlotte, North Carolina 28201-1006
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING CIRCUMFERENTIAL CRACKING OF STEAM GENERATOR TUBES - OCONEE, UNITS 1, 2, AND 3, CATAWBA, UNITS 1 AND 2, AND MCGUIRE, UNITS 1 AND 2 (TACS M92257, M92258, M92259, M92231, M92232, M92251, AND M92252)
Dear Mr. Tuckman:
On April 28, 1995, the U.S. Nuclear Regulatory Commission issued Generic Letter (GL) 95-03 "Circumferential Cracking of Steam Generator Tubes" that requested addressees to evaluate recent operating experience related to circumferential cracking, justify continued operation until the next scheduled steam generator tube inspections, and to develop plans for the next steam generator tube inspections. The staff has reviewed your responses for the Oconee, Catawba, and McGuire nuclear stations dated June 27, 1995. As a result of this review, the staff identified areas for which additional information and/or clarification was needed. Requests for this additional information was previously forwarded to you. Subsequent to our forwarding those requests, the staff has identified an additional question, applicable to each of your plants. The enclosure to this letter identifies the additional information needed for the staff to complete its review of your responses to GL 95-03. You are requested to provide your response to this request within 30 days of your receipt of this letter.
The information requested by this letter is within the scope of the overall burden estimated in Generic Letter 95-03 of 350 hours0.00405 days <br />0.0972 hours <br />5.787037e-4 weeks <br />1.33175e-4 months <br />. This request is covered by the Office of Management and Budget clearance number 3150-0011, which expires July 31, 1997.
9510030004 9592LE CNT PDR ADOCK 05000269 P
PDR J.9
Mr. M. S. Tuckman
-2 if you have any questions regarding this matter, contact Len Wiens at (301) 415-1495.
Sincerely, Original signed by:
Robert Martin for:
Herbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, 50-287 50-369, 50-370, 50-413, 50-414
Enclosure:
Request for Additional Information cc w/encl:
See'next page DISTRIBUTION PDU'kR-I PD22 Reading File S. Varga J. Zwolinski R. Martin V. Nerses ACRS (4)
OGC E. Merschoff, RII R. Crlenjak, RII K. Karwoski DOCUMENT NAME:
G:\\SGRAI.903 To receive a copy of this docume 1, indicate in the box: "C" = Copy without attachment/enc "E"= Copy with attachment/enclosure "N" = No copy OFFICE PDI1-2/LA P011-2/PM
(
PDII PM NAME LBerr LWiens:as DATE O
5 09/
5 09/
/ 5 OFFICIAL RE RD COPY
Mr. M. S. Tuckman p
-2 If you have any questions regarding this matter, contact Len Wiens at.
(301) 415-1495.
Sincerely, Original signed by:
Robert Martin for:
Herbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, 50-287 50-369, 50-370, 50-413, 50-414
Enclosure:
Request for Additional Information cc w/encl:
See next page DISTRIBUTION Docket File PUBLIC PD22 Reading File S. Varga J. Zwolinski R. Martin V. Nerses ACRS (4)
OGC E. Merschoff, RII R. Crlenjak, RH K. Karwoski DOCUMENT NAME:
G:\\SGRAI.903 To receive a copy of this docume t. idicate in the box: "C" = Copy without attachment/enc "E"
Copy with attachment/enclosure "N"
= No copy OFFICE PDII-2/LA PD11-2/PM V
PDI PM_
NAME LBerr LWiens:as DATE 5
09/],1 5
0 9/izS/ 5 OFFICIAL RE RD COPY
0 0
Mr. M. S. Tuckman
-2 If you have any questions regarding this matter, contact Len Wiens at (301) 415-1495.
Sincerely, ert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, 50-287 50-369, 50-370, 50-413, 50-414
Enclosure:
Request for Additional Information cc w/encl:
See next page
J0 Duke Power Company Catawba Nuclear Station McGuire Nuclear Station Oconee Nuclear Station cc:
Mr. Z. L. Taylor Regulatory Compliance Manager North Carolina Electric Membership Duke Power Company Corporation 4800 Concord Road P. 0. Box 27306 York, South Carolina 29745 Raleigh, North Carolina 27611 A. V. Carr, Esquire Saluda River Electric Cooperative, Duke Power Company Inc.
422 South Church Street P. 0. Box 929 Charlotte, North Carolina 28242 Laurens, South Carolina 29360 J. Michael McGarry, III, Esquire Senior Resident Inspector Winston and Strawn 4830 Concord Road 1400 L Street, NW.
York, South Carolina 29745 Washington, DC 20005 Regional Administrator, Region II North Carolina Municipal Power U.S. Nuclear Regulatory Commission Agency Number 1 101 Marietta Street, NW Suite 2900 1427 Meadowwood Boulevard Atlanta, Georgia 30323 P. 0. Box 29513 Raleigh, North Carolina 27626 Max Batavia, Chief Bureau of Radiological Health Mr. T. Richard Puryear South Carolina Department of Health Nuclear Technical Services Manager and Environmental Control Westinghouse Electric Corporation 2600 Bull Street Carolinas District Columbia, South Carolina 29201 2709 Water Ridge Parkway, Suite 430 Charlotte, North Carolina 28217 Ms. Karen E. Long Assistant Attorney General County Manager of York County North Carolina Department of Justice York County Courthouse P. 0. Box 629 York, South Carolina 29745 Raleigh, North Carolina 27602 Richard P. Wilson, Esquire Mr. G. A. Copp Assistant Attorney General Licensing -
ECO50 S.C. Attorney General's Office Duke Power Company P. 0. Box 11549 526 South Church Street Columbia, South Carolina 29211 Charlotte, North Carolina 28242-0001 Piedmont Municipal Power Agency Mr. Tom McQuairrie 121 Village Drive Site Security Manager Oconee Greer, South Carolina 29651 Duke Power Company Rt. 2, Box 610 Seneca, South Carolina 29678
Duke Power Company Catawba Nuclear Station McGuire Nuclear Station Oconee Nuclear Station cc:
Dr. John M. Barry Mr. Ed Burchfield Mecklenburg County Compliance Department of Environmental Duke Power Company Protection Oconee Nuclear Site 700 N Tryon Street P. 0. Box 1439 Charlotte, North Carolina 29202 Seneca, South Carolina 29679 County Manager of Mecklenburg County Mr. Robert B. Borsum 720 East Fourth Street Babcock & Wilcox Charlotte, North Carolina 28202 Nuclear Power Division Suite 525 Mr. J. E. Snyder 1700 Rockville Pike Regulatory Compliance Manager Rockville, Maryland 20852 Duke Power Company McGuire Nuclear Site Manager, LIS 12700 Hagers Ferry Road NUS Corporation Huntersville, North Carolina 28078 2650 McCormick Drive, 3rd Floor Clearwater, Florida 34619-1035 Senior Resident Inspector c/o U.S. Nuclear Regulatory Senior Resident Inspector Commission U.S. Nuclear Regulatory Commission 12700 Hagers Ferry Road Route 2, Box 610 Huntersville, North Carolina 28078 Seneca, South Carolina 29678 Mr. Dayne H. Brown, Director Mr. W. R. McCollum Department of Environmental Site Vice President Health and Natural Resources Catawba Nuclear Station Division of Radiation Protection Duke Power Company P. 0. Box 27687 4800 Concord Road Raleigh, North Carolina 27611 York, South Carolina 29745 County Supervisor of Oconee County Mr. T. C. McMeekin Walhalla, South Carolina 27621 Vice President, McGuire Site Duke Power Company Mr. J. W. Hampton 12700 Hagers Ferry Road Vice President, Oconee Site Huntersville, North Carolina 28078 Duke Power Company P. 0. Box 1439 Elaine Wathen, Lead REP Planner Seneca, South Carolina 29679 Division of Emergency Management 116 West Jones Street Mr. William T. Byers, III Raleigh, North Carolina 27603-1335 Site Security Manager -
Catawba Duke Power Company Mr. Terry Keener Rt 2, Box 79 Site Security Manager - McGuire York, South Carolina 29745 Duke Power Company Rt. 4, Box 429 Huntersville, North Carolina 28078
REQUEST FOR ADDITIONAL INFORMATION GENERIC LETTER 95-03 During the Maine Yankee outage in July/August 1994, several weaknesses were identified in their eddy current program as detailed in NRC Information Notice 94-88, "Inservice Inspection Deficiencies Result in Severely Degraded Steam Generator Tubes."
In Information Notice 94-88, the staff observed that several circumferential indications could be traced back to earlier inspections when the data was reanalyzed using terrain plots. These terrain plots had not been generated as part of the original field analysis for these tubes.
For the rotating pancake coil (RPC) examinations performed at your plant at locations susceptible to circumferential cracking during the previous inspection (i.e.,
previous inspection per your Generic Letter 95-03 response), discuss the extent to which terrain plots were used to analyze the eddy current data. If terrain plots were not routinely used at locations susceptible to circumferential cracking, discuss whether or not the RPC eddy current data has been reanalyzed using terrain mapping of the data. If terrain plots were not routinely used during the outage and your data has not been reanalyzed with terrain mapping of the data, discuss your basis for not reanalyzing your previous RPC data in light of the findings at Maine Yankee.
Discuss whether terrain plots will be used to analyze the RPC eddy current data at locations susceptible to circumferential cracking during your next steam generator tube inspection (i.e., the next inspection per your Generic Letter 95-03 response).
Enclosure