ML061570224: Difference between revisions
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{{#Wiki_filter:June 16, | {{#Wiki_filter:June 16, 2006 Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 33408-0420 | ||
==SUBJECT:== | ==SUBJECT:== | ||
TURKEY POINT PLANT, UNIT NO. 3 - REVIEW OF THE | TURKEY POINT PLANT, UNIT NO. 3 - REVIEW OF THE STEAM GENERATOR TUBE INSPECTION REPORTS FOR THE FALL 2004 OUTAGE (TAC NO. MC8112) | ||
==Dear Mr. Stall:== | ==Dear Mr. Stall:== | ||
By letters dated October 18, 2004 (Agencywide Documents Access and Management System Accession Number ML060040111), February 28, 2005 (ML050670045 and ML050670057), | By letters dated October 18, 2004 (Agencywide Documents Access and Management System Accession Number ML060040111), February 28, 2005 (ML050670045 and ML050670057), | ||
June 17, 2005 (ML051810242), and February 27, 2006 (ML060760370), Florida Power & Light Company (the licensee) submitted information related to the steam generator (SG) tube inspections at the Turkey Point Nuclear Plant, Unit 3, for the fall 2004 outage. The results of the U.S. Nuclear Regulatory Commission (NRC) staff review of these documents | June 17, 2005 (ML051810242), and February 27, 2006 (ML060760370), Florida Power & Light Company (the licensee) submitted information related to the steam generator (SG) tube inspections at the Turkey Point Nuclear Plant, Unit 3, for the fall 2004 outage. The results of the U.S. Nuclear Regulatory Commission (NRC) staff review of these documents is summarized below. | ||
Turkey Point Unit 3 has three Westinghouse Model 44F SGs. The SGs utilize a hydraulic tubesheet expansion method and have 405 stainless steel tube support plates with broached quatrefoil holes. These SGs began operation in 1982, following SG replacement, and each has thermally treated Alloy 600 tubing. | |||
The licensee provided the scope, extent, methods and results of their SG tube inspections in the documents referenced above. In addition, the licensee described corrective actions (i.e., tube plugging) taken in response to the inspection findings. | |||
The licensee indicated that a wear indication in SG3B at the second broached tube support location is due to a probable loose part. The licensee clarified that this wear indication and suspected loose part were first detected in the October 2004 inspection, but an analysis of previous data dating back 14 years showed that the indication was present at lower levels. The licensee concluded that the wear growth rate is low based on the historical data. Given the shallow measured depth, long service history without significant change in voltage, and lack of physical evidence of wear to adjacent tubes, the licensee determined that the loose part is most likely small and immobile. The tube was left in service and will be tracked during future inspections. | |||
Based on a review of the information provided, the NRC staff concludes that the licensee provided the information required by their technical specifications. In addition, the staff concludes that there are no technical issues that warrant follow-up action at this time, since the | |||
J. A. Stall 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. | |||
This completes the NRC staffs efforts under TAC No. MC8112. If you have any questions regarding this matter, please contact me at 301-415-3974. | |||
Sincerely, | |||
/RA/ | |||
Brendan T. Moroney, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-250 cc: See next page | |||
ML061570224 NRR-106 OFFICE LPL2-2/PM LPL2-2/LA CSGB/BC LPL2-2/BC NAME BMoroney BClayton EMurphy (Acting) MMarshall by memo dated DATE 6/ 8 /06 6/ 7 /06 04/ 07 /06 6/ 16 /06 | |||
Mr. J. A. Stall TURKEY POINT PLANT Florida Power and Light Company cc: | |||
Mr. William E. Webster Division of Emergency Preparedness Vice President, Nuclear Operations Department of Community Affairs Florida Power & Light Company 2740 Centerview Drive P.O. Box 14000 Tallahassee, Florida 32399-2100 Juno Beach, FL 33408-0420 Attorney General M. S. Ross, Managing Attorney Department of Legal Affairs Florida Power & Light Company The Capitol P.O. Box 14000 Tallahassee, Florida 32304 Juno Beach, FL 33408-0420 Michael O. Pearce Marjan Mashhadi, Senior Attorney Plant General Manager Florida Power & Light Company Turkey Point Nuclear Plant 801 Pennsylvania Avenue, NW. Florida Power and Light Company Suite 220 9760 SW. 344th Street Washington, DC 20004 Florida City, FL 33035 T. O. Jones, Site Vice President Walter Parker Turkey Point Nuclear Plant Licensing Manager Florida Power and Light Company Turkey Point Nuclear Plant 9760 SW. 344th Street 9760 SW 344th Street Florida City, FL 33035 Florida City, FL 33035 County Manager Mark Warner, Vice President Miami-Dade County Nuclear Operations Support 111 Northwest 1 Street, 29th Floor Florida Power and Light Company Miami, Florida 33128 P.O. Box 14000 Juno Beach, FL 33408-0420 Senior Resident Inspector Turkey Point Nuclear Plant Mr. Rajiv S. Kundalkar U.S. Nuclear Regulatory Commission Vice President - Nuclear Engineering 9762 SW. 344th Street Florida Power & Light Company Florida City, Florida 33035 P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. William A. Passetti, Chief Department of Health Bureau of Radiation Control 2020 Capital Circle, SE, Bin #C21 Tallahassee, Florida 32399-1741 Mr. Craig Fugate, Director}} | |||
Revision as of 17:48, 23 November 2019
| ML061570224 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 06/16/2006 |
| From: | Moroney B NRC/NRR/ADRO/DORL/LPLD |
| To: | Stall J Florida Power & Light Co |
| Moroney B, NRR/DORL, 415-3974 | |
| References | |
| TAC MC8112 | |
| Download: ML061570224 (4) | |
Text
June 16, 2006 Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 33408-0420
SUBJECT:
TURKEY POINT PLANT, UNIT NO. 3 - REVIEW OF THE STEAM GENERATOR TUBE INSPECTION REPORTS FOR THE FALL 2004 OUTAGE (TAC NO. MC8112)
Dear Mr. Stall:
By letters dated October 18, 2004 (Agencywide Documents Access and Management System Accession Number ML060040111), February 28, 2005 (ML050670045 and ML050670057),
June 17, 2005 (ML051810242), and February 27, 2006 (ML060760370), Florida Power & Light Company (the licensee) submitted information related to the steam generator (SG) tube inspections at the Turkey Point Nuclear Plant, Unit 3, for the fall 2004 outage. The results of the U.S. Nuclear Regulatory Commission (NRC) staff review of these documents is summarized below.
Turkey Point Unit 3 has three Westinghouse Model 44F SGs. The SGs utilize a hydraulic tubesheet expansion method and have 405 stainless steel tube support plates with broached quatrefoil holes. These SGs began operation in 1982, following SG replacement, and each has thermally treated Alloy 600 tubing.
The licensee provided the scope, extent, methods and results of their SG tube inspections in the documents referenced above. In addition, the licensee described corrective actions (i.e., tube plugging) taken in response to the inspection findings.
The licensee indicated that a wear indication in SG3B at the second broached tube support location is due to a probable loose part. The licensee clarified that this wear indication and suspected loose part were first detected in the October 2004 inspection, but an analysis of previous data dating back 14 years showed that the indication was present at lower levels. The licensee concluded that the wear growth rate is low based on the historical data. Given the shallow measured depth, long service history without significant change in voltage, and lack of physical evidence of wear to adjacent tubes, the licensee determined that the loose part is most likely small and immobile. The tube was left in service and will be tracked during future inspections.
Based on a review of the information provided, the NRC staff concludes that the licensee provided the information required by their technical specifications. In addition, the staff concludes that there are no technical issues that warrant follow-up action at this time, since the
J. A. Stall 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.
This completes the NRC staffs efforts under TAC No. MC8112. If you have any questions regarding this matter, please contact me at 301-415-3974.
Sincerely,
/RA/
Brendan T. Moroney, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-250 cc: See next page
ML061570224 NRR-106 OFFICE LPL2-2/PM LPL2-2/LA CSGB/BC LPL2-2/BC NAME BMoroney BClayton EMurphy (Acting) MMarshall by memo dated DATE 6/ 8 /06 6/ 7 /06 04/ 07 /06 6/ 16 /06
Mr. J. A. Stall TURKEY POINT PLANT Florida Power and Light Company cc:
Mr. William E. Webster Division of Emergency Preparedness Vice President, Nuclear Operations Department of Community Affairs Florida Power & Light Company 2740 Centerview Drive P.O. Box 14000 Tallahassee, Florida 32399-2100 Juno Beach, FL 33408-0420 Attorney General M. S. Ross, Managing Attorney Department of Legal Affairs Florida Power & Light Company The Capitol P.O. Box 14000 Tallahassee, Florida 32304 Juno Beach, FL 33408-0420 Michael O. Pearce Marjan Mashhadi, Senior Attorney Plant General Manager Florida Power & Light Company Turkey Point Nuclear Plant 801 Pennsylvania Avenue, NW. Florida Power and Light Company Suite 220 9760 SW. 344th Street Washington, DC 20004 Florida City, FL 33035 T. O. Jones, Site Vice President Walter Parker Turkey Point Nuclear Plant Licensing Manager Florida Power and Light Company Turkey Point Nuclear Plant 9760 SW. 344th Street 9760 SW 344th Street Florida City, FL 33035 Florida City, FL 33035 County Manager Mark Warner, Vice President Miami-Dade County Nuclear Operations Support 111 Northwest 1 Street, 29th Floor Florida Power and Light Company Miami, Florida 33128 P.O. Box 14000 Juno Beach, FL 33408-0420 Senior Resident Inspector Turkey Point Nuclear Plant Mr. Rajiv S. Kundalkar U.S. Nuclear Regulatory Commission Vice President - Nuclear Engineering 9762 SW. 344th Street Florida Power & Light Company Florida City, Florida 33035 P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. William A. Passetti, Chief Department of Health Bureau of Radiation Control 2020 Capital Circle, SE, Bin #C21 Tallahassee, Florida 32399-1741 Mr. Craig Fugate, Director