ML033560128
| ML033560128 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/07/2004 |
| From: | Nerses V NRC/NRR/DLPM/LPD1 |
| To: | Christian D Dominion Nuclear Connecticut |
| Nerses V, NRR//DLPM, 415-1484 | |
| References | |
| FOIA/PA-2005-0210, TAC MC0631 | |
| Download: ML033560128 (6) | |
Text
January 7, 2004 Mr. David A. Christian Senior Vice President and Chief Nuclear Officer Dominion Nuclear Connecticut, Inc.
Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION, REGARDING MILLSTONE POWER STATION, UNIT NO. 3, STEAM GENERATOR TUBE INSPECTION
SUMMARY
FOR THEIR FALL 2002 OUTAGE (TAC NO. MC0631)
Dear Mr. Christian:
By letters dated October 7, 2002, and August 25, 2003, you submitted the Fall 2002 refueling outage steam generator tube plugging and inspection summary reports for the Millstone Power Station, Unit No. 3, in accordance with the plants Technical Specifications.
The staff reviewed the information you provided and determined that additional information is required in order to complete the evaluation. The additional information requested is attached.
If you have any questions, please contact me at (301) 415-1484.
Sincerely,
/RA/
Victor Nerses, Senior Project Manager, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-423
Enclosure:
As stated cc w/encl: See next page
ML033560128 OFFICE PDI-2/PM PDI-2/LA EMCB/SC PDI-2/ASC NAME VNerses CRaynor ALund REnnis for DRoberts DATE 01/04/04 12/29/03 11/12/03 01/07/04
Millstone Power Station, Unit No. 3 cc:
Lillilan M. Cuoco, Esquire Senior Counsel Dominion Resources Services, Inc.
Rope Ferry Road Waterford, CT 06385 Edward L. Wilds, Jr., Ph.D.
Director, Division of Radiation Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 First Selectmen Town of Waterford 15 Rope Ferry Road Waterford, CT 06385 Mr. P. J. Parulis Manager - Nuclear Oversight Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Mr. W. R. Matthews Senior Vice President - Nuclear Operations Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Mr. John Markowicz Co-Chair Nuclear Energy Advisory Council 9 Susan Terrace Waterford, CT 06385 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terrys Plain Road Simsbury, CT 06070 Senior Resident Inspector Millstone Power Station c/o U.S. Nuclear Regulatory Commission P. O. Box 513 Niantic, CT 06357 Mr. G. D. Hicks Director - Nuclear Station Safety and Licensing Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Ms. Nancy Burton 147 Cross Highway Redding Ridge, CT 00870 Mr. William D. Meinert Nuclear Engineer Massachusetts Municipal Wholesale Electric Company Moody Street P.O. Box 426 Ludlow, MA 01056 Mr. J. Alan Price Site Vice President Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Mr. Chris Funderburk Director, Nuclear Licensing and Operations Support Dominion Resources Services, Inc.
5000 Dominion Boulevard Glen Allen, VA 23060-6711 Mr. David W. Dodson Licensing Supervisor Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385
Millstone Power Station, Unit No. 3 cc:
Mr. S. E. Scace Assistant to the Site Vice President Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Mr. M. J. Wilson Manager - Nuclear Training Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Mr. A. J. Jordan, Jr.
Director - Nuclear Engineering Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385 Mr. S. P. Sarver Director - Nuclear Station Operations and Maintenance Dominion Nuclear Connecticut, Inc.
Rope Ferry Road Waterford, CT 06385
REQUEST FOR ADDITIONAL INFORMATION MILLSTONE POWER STATION, UNIT NO. 3, FALL 2002 REFUELING OUTAGE STEAM GENERATOR TUBE INSPECTION REPORT DOCKET NO. 50-423
- 1. On page two of your inservice inspection (ISI) report, you indicated that the rotating pancake coil examinations in Steam Generator (SG) A resulted in 43 volumetric indications. Of these indications, 28 were determined to be manufacturing burnish marks (MBMs) and the remaining 15 were considered to be MBMs or loose part wear that could not be confirmed with bobbin coil. The last 15 indications were reported as single volumetric indications (SVI) and documented in Attachment 4 of your report. There seems to be a difference between the number of SVIs listed in Attachment 4 and the number of SVIs discussed in the report.
A similar situation occurs for the number of SVIs in SG C. Please clarify the differences.
- 2. On page four of your ISI report, you indicated that one tube in SG C was identified with an obstruction. Please describe the nature of the obstruction. Include in your response a discussion of whether the obstruction was service-induced and the extent and location of the obstruction (e.g., what was the largest size probe to be passed through the tube during this outage, and previous outages).
- 3. On page four of your report, you indicate that an SVI was identified and is in contact with a non-retrievable loose part. Please discuss the nature of this part and discuss the results of evaluations performed to ensure the part would not damage other adjacent tubes. In addition, please discuss what other loose parts have been left in the SGs and the results of any evaluations performed to ensure these parts would not result in a loss of tube integrity for the period of time between inspections.