ML040920152

Request for Additional Information, Steam Generator Tube Inspection

ML040920152
Person / Time
Site:	Catawba
Issue date:	03/31/2004
From:	Sean Peters NRC/NRR/DLPM/LPD2
To:	Jamil D Duke Energy Corp
Peters S, NRR/DLPM, 415-1842
References
TAC MC0957
Download: ML040920152 (4)

Text

March 31, 2004 Mr. D. M. Jamil Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, SC 29745

SUBJECT:

CATAWBA NUCLEAR STATION, UNIT 2 RE: REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MC0957)

Dear Mr. Jamil:

By letters dated April 7, 2003, and June 18, 2003, Duke Energy Corporation submitted information summarizing the End of Core 12 steam generator tube inservice inspection for Catawba Nuclear Station, Unit 2. By letter dated February 10, 2004, you submitted a response to a request for additional information from the Nuclear Regulatory Commission (NRC). The NRC technical staff has reviewed your response and has determined that additional information is required for the staff to complete its review, as identified in the Enclosure.

We discussed these issues with your staff on March 29, 2004. Your staff indicated that you would attempt to provide your response by April 30, 2004.

Please contact me at (301) 415-1842, if you have any other questions on these issues.

Sincerely,

/RA/

Sean E. Peters, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-414

Enclosure:

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

March 31, 2004 Mr. D. M. Jamil Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, SC 29745

SUBJECT:

CATAWBA NUCLEAR STATION, UNIT 2 RE: REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MC0957)

Dear Mr. Jamil:

By letters dated April 7, 2003, and June 18, 2003, Duke Energy Corporation submitted information summarizing the End of Core 12 steam generator tube inservice inspection for Catawba Nuclear Station, Unit 2. By letter dated February 10, 2004, you submitted a response to a request for additional information from the Nuclear Regulatory Commission (NRC). The NRC technical staff has reviewed your response and has determined that additional information is required for the staff to complete its review, as identified in the Enclosure.

We discussed these issues with your staff on March 29, 2004. Your staff indicated that you would attempt to provide your response by April 30, 2004.

Please contact me at (301) 415-1842, if you have any other questions on these issues.

Sincerely,

/RA/

Sean E. Peters, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-414

Enclosure:

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

PUBLIC RidsNrrPMSPeters PDII-1 R/F RHaag, Rgn II RidsNrrDlpmLpdii-1 (JNakoski) JTerrell RidsOgcRp RidsRgn2MailCenter (LPlisco)

RidsAcrsAcnwMailCenter CHawes (Hard copy)

ADAMS Accession: ML040920152 NRR-106 NRR-088 OFFICE PDII-1/PM PDII-1/LA PDII-1/SC NAME SPeters CHawes JNakoski DATE 3/31/04 3/31/04 3/31/04 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION DUKE POWER COMPANY CATAWBA NUCLEAR STATION, UNIT 2 DOCKET NO. 50-414 The Nuclear Regulatory Commission (NRC) staff has reviewed the licensees response dated February 10, 2004, to a request for additional information regarding the End of Core 12 steam generator tube inservice inspection for Catawba Nuclear Station, Unit 2. The NRC staff has identified the following information that is needed to enable the continuation of its review.

In your response to question 3, you indicate that you preventatively plugged two tubes (2A-1-100 and 2A-1-106) with anomalous U-bend volumetric indications. You also stated that you believe that the indications are an artifact of the plus point inspection.

A. During previous inspections, did you perform any rotating probe examinations in the U-bend area of these tubes? If so, discuss whether these anomalous indications were detected. Furthermore, if they were detected in previous inspections, discuss whether the indications changed from one inspection to the next and describe the implications of the changes.

B. If you performed rotating probe examinations in these tubes in the U-bend area during previous inspections and you did not detect anomalous indications, please provide insights on what caused the current anomalous indications.

C. Discuss your attempts to size the anomalous indications using any variety of non-destructive examination techniques so that you could confirm that the indications did not pose a structural or leakage integrity concern. Also, provide a justification for your conclusions that these indications are an artifact of the plus point inspection.

Catawba Nuclear Station cc:

Lee Keller, Manager North Carolina Electric Membership Corp.

Regulatory Compliance P. O. Box 27306 Duke Energy Corporation Raleigh, North Carolina 27611 4800 Concord Road York, South Carolina 29745 Senior Resident Inspector U. S. Nuclear Regulatory Commission Ms. Lisa F. Vaughn 4830 Concord Road Duke Energy Corporation York, South Carolina 29745 Mail Code - PB05E 422 South Church Street Henry Porter, Assistant Director P.O. Box 1244 Division of Waste Management Charlotte, North Carolina 28201-1244 Bureau of Land and Waste Management Dept. of Health and Environmental Control Anne Cottingham, Esquire 2600 Bull Street Winston and Strawn Columbia, South Carolina 29201-1708 1400 L Street, NW Washington, DC 20005 Mr. R. L. Gill, Jr., Manager Nuclear Regulatory Issues North Carolina Municipal Power and Industry Affairs Agency Number 1 Duke Energy Corporation 1427 Meadowwood Boulevard 526 South Church Street P. O. Box 29513 Mail Stop EC05P Raleigh, North Carolina 27626 Charlotte, North Carolina 28202 County Manager of York County Saluda River Electric York County Courthouse P. O. Box 929 York, South Carolina 29745 Laurens, South Carolina 29360 Piedmont Municipal Power Agency Mr. Peter R. Harden, IV, Vice President 121 Village Drive Customer Relations and Sales Greer, South Carolina 29651 Westinghouse Electric Company 6000 Fairview Road Ms. Karen E. Long 12th Floor Assistant Attorney General Charlotte, North Carolina 28210 North Carolina Department of Justice P. O. Box 629 Mary Olson Raleigh, North Carolina 27602 Director of the Southeast Office Nuclear Information and Resource Service NCEM REP Program Manager 729 Haywood Road, 1-A 4713 Mail Service Center P. O. Box 7586 Raleigh, North Carolina 27699-4713 Asheville, North Carolina 28802

Catawba Nuclear Station cc:

Mr. T. Richard Puryear Owners Group (NCEMC)

Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 Richard M. Fry, Director Division of Radiation Protection N. C. Dept. of Environment, Health, and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721