ML042360545
| ML042360545 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 08/17/2004 |
| From: | Chandu Patel NRC/NRR/DLPM/LPD2 |
| To: | Scarola J Carolina Power & Light Co |
| Patel C P, NRR/DLPM, 415-3025 | |
| References | |
| TAC MC3820 | |
| Download: ML042360545 (4) | |
Text
August 17, 2004 Mr. James Scarola, Vice President Shearon Harris Nuclear Power Plant Carolina Power & Light Company Post Office Box 165, Mail Code: Zone 1 New Hill, North Carolina 27562-0165
SUBJECT:
REVIEW OF THE 2003 SHEARON HARRIS STEAM GENERATOR TUBE INSPECTION RESULTS (TAC NUMBER MC3820)
Dear Mr. Scarola:
By letter dated May 15, 2003, as supplemented by letters dated August 13, 2003, December 8, 2003, April 15, 2004, May 7, 2004, and May 27, 2004, Carolina Power & Light Company submitted reports summarizing the steam generator tube inspections performed during the eleventh refueling outage at the Shearon Harris Nuclear Power Plant (HNP) in May 2003.
As discussed in the enclosed evaluation, the Nuclear Regulatory Commission staff concluded that you have provided the information required by the technical specifications for HNP and that no additional follow-up action is required at this time. If you have any questions, please contact me at (301) 415-3025.
Sincerely,
/RA/
Chandu P. Patel, Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-400
Enclosure:
Evaluation cc w/enclosure:
See next page
ML042360545 NRR-106 OFFICE PDII-2/PM PDII-2/LA PDII-2/SC (A)
NAME CPatel EDunnington MMarshall DATE 8/13/04 8/13/04 8/17/04 COPY Yes/No Yes/No Yes/No FILENAME - G:\\DLPM\\PDII-2\\Shearon Harris\\LTRMC3820.wpd
SHEARON HARRIS NUCLEAR POWER PLANT EVALUATION OF ELEVENTH REFUELING OUTAGE IN MAY 2003 STEAM GENERATOR TUBE INSPECTION RESULTS DOCKET NO. 50-400 By letters dated May 15, 2003 (ML031420075), August 13, 2003 (ML032680868), December 8, 2003 (ML033530429), April 15, 2004 (ML041120371), May 7, 2004 (ML041320496), and May 27, 2004 (ML041560343), Carolina Power & Light Company, the licensee, submitted reports summarizing the steam generator tube inspections performed during the eleventh refueling outage in May 2003 at Shearon Harris Nuclear Power Plant (HNP).
The three steam generators at HNP were replaced in late 2001 during Refueling Outage 10 with Westinghouse Model Delta 75 steam generators. Each steam generator contains 6,307 thermally treated Alloy 690 tubes. Each tube has a nominal outside diameter of 0.6875-inch and a nominal wall thickness of 0.040-inch. The tubes were hydraulically expanded at both ends for the full length of the tubesheet and are supported by a number of stainless steel tube supports (trifoil tube hole design). The tubes installed in rows 1 through 17 were thermally stress relieved after bending.
The licensee provided the scope, extent, methods, and results of their 2003 steam generator tube inspections in the documents referenced above. Subsequent to the 2003 outage, the licensee shut down the plant in May 2004 as a result of primary-to-secondary leakage. As a result of the investigation into the cause of the leakage, the licensee determined that one indication was missed during their 2003 inspections. This indication is discussed in the May 27, 2004 letter. The NRC staffs response to the 2004 inspections are being addressed through other NRC processes (e.g., NRC Inspection Program, Generic Communications). The NRC staff will review the 2004 steam generator tube inspection reports when they are submitted to the NRC.
In the documents referenced above, the licensee described corrective actions (i.e., tube plugging or repair) taken in response to the 2003 inspection findings. Based on a review of the information provided, the NRC staff concludes that the licensee provided the information required by the technical specifications for HNP. In addition, the NRC staff concludes that there are no technical issues from the 2003 inspections that warrant follow-up action at this time since the inspections appear to be consistent with the objective of detecting potential tube degradation and the inspection results appear to be consistent with industry operating experience at similarly designed and operated units.
Mr. James Scarola Shearon Harris Nuclear Power Plant Carolina Power & Light Company Unit 1 cc:
Steven R. Carr Associate General Counsel - Legal Department Progress Energy Service Company, LLC Post Office Box 1551 Raleigh, North Carolina 27602-1551 Resident Inspector/ Harris NPS c/o U. S. Nuclear Regulatory Commission 5421 Shearon Harris Road New Hill, North Carolina 27562-9998 Ms. Margaret A. Force Assistant Attorney General State of North Carolina Post Office Box 629 Raleigh, North Carolina 27602 Public Service Commission State of South Carolina Post Office Drawer 11649 Columbia, South Carolina 29211 Ms. Beverly Hall, Section Chief Division of Radiation Protection N.C. Department of Environment and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Mr. James W. Holt Manager Performance Evaluation and Regulatory Affairs PEB 7 Progress Energy Post Office Box 1551 Raleigh, North Carolina 27602-1551 Mr. Benjamin C. Waldrep Plant General Manager Shearon Harris Nuclear Power Plant Carolina Power & Light Company P. O. Box 165, Mail Zone 3 New Hill, North Carolina 27562-0165 Mr. John H. ONeill, Jr.
Shaw, Pittman, Potts & Trowbridge 2300 N Street, NW.
Washington, DC 20037-1128 Mr. Robert J. Duncan II Director of Site Operations Shearon Harris Nuclear Power Plant Carolina Power & Light Company Post Office Box 165, Mail Zone 1 New Hill, North Carolina 27562-0165 Mr. Robert P. Gruber Executive Director Public Staff NCUC 4326 Mail Service Center Raleigh, North Carolina 27699-4326 Chairman of the North Carolina Utilities Commission Post Office Box 29510 Raleigh, North Carolina 27626-0510 Mr. Herb Council, Chair Board of County Commissioners of Wake County P. O. Box 550 Raleigh, North Carolina 27602 Mr. Tommy Emerson, Chair Board of County Commissioners of Chatham County P. O. Box 87 Pittsboro, North Carolina 27312 Mr. Terry C. Morton, Manager Support Services Shearon Harris Nuclear Power Plant Carolina Power & Light Company P. O. Box 165, Mail Zone 1 New Hill, North Carolina 27562-0165 Mr. John R. Caves, Supervisor Licensing/Regulatory Programs Shearon Harris Nuclear Power Plant Carolina Power & Light Company P. O. Box 165, Mail Zone 1 New Hill, NC 27562-0165