ML070180063
| ML070180063 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/23/2007 |
| From: | Farideh Saba NRC/NRR/ADRO/DORL/LPLIV |
| To: | Forbes J Entergy Operations |
| Saba F, NRR/DORL/LPL4, 301-415-1447 | |
| References | |
| TAC MD2718 | |
| Download: ML070180063 (4) | |
Text
January 23, 2007 Mr. Jeffrey S. Forbes Site Vice President Arkansas Nuclear One Entergy Operations, Inc.
1448 S. R. 333 Russellville, AR 72802
SUBJECT:
ARKANSAS NUCLEAR ONE, UNIT 1 - REVIEW OF STEAM GENERATOR TUBE PRESERVICE INSPECTION REPORT FOR REFUELING OUTAGE 19 (TAC NO. MD2718)
Dear Mr. Forbes:
By letter dated June 14, 2006, Entergy Operations, Inc. (the licensee), provided the 180-day steam generator (SG) preservice inspection report for refueling outage (RFO) 19 in accordance with Technical Specification (TS) 5.6.7. The Arkansas Nuclear One, Unit 1 (ANO-1), SGs were replaced during RFO 19. Additional information regarding the replacement SGs is provided in a conference call summary dated March 9, 2006.
The Nuclear Regulatory Commission (NRC) staff has completed its review of the information provided by the licensee and concludes that the licensee provided the information required by ANO-1 TSs and that no additional follow-up is required at this time. The NRC staffs review is enclosed.
If you have any questions regarding this matter, please contact me at (301) 415-1447.
Sincerely,
/RA/
Farideh E. Saba, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-313
Enclosure:
As stated cc w/encl: See next page
ML070180063 OFFICE NRR/LPL4/PM NRR/LPL4/LA NRR/CSGB/BC NRR/LPL4/BC NAME FSaba LFeizollahi AHiser DTerao DATE 1/22/07 1/22/07 9/29/06 1/23/07
December 2006 Arkansas Nuclear One cc:
Executive Vice President
& Chief Operating Officer Entergy Operations, Inc.
P.O. Box 31995 Jackson, MS 39286-1995 General Manager Plant Operations Entergy Operations, Inc.
Arkansas Nuclear One 1448 SR 333 Russellville, AR 72802 Director, Nuclear Safety Assurance Entergy Operations, Inc.
Arkansas Nuclear One 1448 SR 333 Russellville, AR 72802 Manager, Licensing Entergy Operations, Inc.
Arkansas Nuclear One 1448 SR 333 Russellville, AR 72802 Director, Nuclear Safety & Licensing Entergy Operations, Inc.
1340 Echelon Parkway Jackson, MS 39213-8298 Section Chief, Division of Health Radiation Control Section Arkansas Department of Health and Human Services 4815 West Markham Street, Slot 30 Little Rock, AR 72205-3867 Section Chief, Division of Health Emergency Management Section Arkansas Department of Health and Human Services 4815 West Markham Street, Slot 30 Little Rock, AR 72205-3867 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 310 London, AR 72847 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 County Judge of Pope County 100 W. Main Street Russellville, AR 72801 Vice President, Operations Support Entergy Operations, Inc.
P.O. Box 31995 Jackson, MS 39286-1995
ARKANSAS NUCLEAR ONE, UNIT 1,
SUMMARY
OF THE STAFFS REVIEW OF THE REFUELING OUTAGE 19 STEAM GENERATOR TUBE PRESERVICE INSPECTION REPORT TAC NO. MD2718 DOCKET NO. 50-313 By letter dated June 14, 2006 (Agencywide Documents Access and Management System (ADAMS)
Accession No. ML061730358), Entergy Operations, Inc. (the licensee), provided the 180-day steam generator (SG) preservice inspection report for refueling outage (RFO) 19 in accordance with Technical Specification 5.6.7. The Arkansas Nuclear One, Unit 1 (ANO-1), SGs were replaced during RFO 19. Additional information regarding the replacement SGs is provided in a conference call summary dated March 9, 2006 (ADAMS Accession No. ML060590367).
ANO-1 has two Enhanced Once-Through SGs manufactured by AREVA. Each SG has 15,597 thermally-treated Alloy 690 tubes with an outside diameter of 0.625 inch and a nominal wall thickness of 0.037 inch. The tubes are hydraulically expanded for the full depth of the tubesheet at each end. The tubes are supported by 15 stainless steel support plates with a broached trefoil-hole design.
The licensee provided the scope, extent, methods, and results of the ANO-1 SG tube preservice inspection in the documents referenced above. The licensee indicated that no tubes were plugged as a result of the preservice inspection.
Based on a review of the information provided, the Nuclear Regulatory Commission (NRC) staff concludes that the licensee provided the information required by ANO-1 TSs. In addition, the NRC staff concludes that there are no technical issues 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.