ML080430486
| ML080430486 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  (DPR-041) |
| Issue date: | 02/21/2008 |
| From: | Mozarfari B NRC/NRR/ADRO/DORL/LPLII-2 |
| To: | Stall J Florida Power & Light Co |
| Mozafari B, NRR/ADRO/DORL, 415-2020 | |
| References | |
| TAC MD6875 | |
| Download: ML080430486 (4) | |
Text
February 21, 2008 Mr. J. A. Stall Senior Vice President Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, FL 33408-0420
SUBJECT:
TURKEY POINT NUCLEAR PLANT, UNIT 4 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE 2006 STEAM GENERATOR TUBE INSPECTIONS (TAC NO. MD6875)
Dear Mr. Stall:
By letter dated March 8, 2007 (ML070710304), Florida Power and Light Company (the licensee) submitted information pertaining to the 2006 steam generator tube inspection performed at Turkey Point Unit 4 during the November 2006 refueling outage.
The Nuclear Regulatory Commission staff has reviewed the Turkey Point Unit 4 information and has determined that additional information is required to complete the review.
This request was discussed with members of your staff and as a result of the teleconference on February 13, 2008, and Mr. Paul Infanger agreed that a response would be provided by March 19, 2008.
If you have any questions, please contact me at (301) 415-2020.
Sincerely,
/RA/
Brenda Mozafari, Senior Project Manager, Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-251
Enclosure:
Request for Additional Information Cc w/encl: See next page
February 21, 2008 Mr. J. A. Stall Senior Vice President Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, FL 33408-0420
SUBJECT:
TURKEY POINT NUCLEAR PLANT, UNIT 4 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE 2006 STEAM GENERATOR TUBE INSPECTIONS (TAC NO. MD6875)
Dear Mr. Stall:
By letter dated March 8, 2007 (ML070710304), Florida Power and Light Company (the licensee) submitted information pertaining to the 2006 steam generator tube inspection performed at Turkey Point Unit 4 during the November 2006 refueling outage.
The Nuclear Regulatory Commission staff has reviewed the Turkey Point Unit 4 information and has determined that additional information is required to complete the review. The information This request was discussed with members of your staff and as a result of the teleconference on February 13, 2008, and Mr. Paul Infanger agreed that a response would be provided by March 19, 2008.
If you have any questions, please contact me at (301) 415-2020.
Sincerely,
/RA/
Brenda Mozafari, Senior Project Manager, Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-251
Enclosure:
Request for Additional Information cc w/encl: See next page Distribution:
PUBLIC LPL2-2 R/F RidsNrrPMBMozafari RidsNrrLABClayton RidsNrrDorlLpl2-2 RidsOgcRp RidsAcrsAcnwMailCenter RidsRgn2MailCenter RidsNrrDorl RidsNrrDci RidsOEMailCenter RidsEdoMailCenter RidsNrrDciCsgb KKarwoski, NRR EWong, NRR Accession Number: ML080430486 OFFICE LPL2-2/PM LPL2-2/LA CSGB/BC LPL2-2/BC NAME BMozafari BClayton AHiser memo dated TBoyce DATE 2/20/08 2/19/08 01/14/08 2/21/08 OFFICIAL RECORD COPY
Florida Power and Light Company TURKEY POINT PLANT cc:
Mr. Mano Nazar Senior Vice President and Nuclear Chief Operating Officer South Region Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408 M. S. Ross, Managing Attorney Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Marjan Mashhadi, Senior Attorney Florida Power & Light Company 801 Pennsylvania Avenue, NW.
Suite 220 Washington, DC 20004 William Jefferson, Jr.
Site Vice President Turkey Point Nuclear Plant Florida Power and Light Company 9760 SW. 344th Street Florida City, FL 33035 County Manager Miami-Dade County 111 Northwest 1 Street, 29th Floor Miami, Florida 33128 Senior Resident Inspector Turkey Point Nuclear Plant U.S. Nuclear Regulatory Commission 9762 SW. 344th Street Florida City, Florida 33035 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 Division of Emergency Preparedness Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304 Michael O. Pearce Plant General Manager Turkey Point Nuclear Plant Florida Power and Light Company 9760 SW. 344th Street Florida City, FL 33035 James Connolly, Licensing Manager Florida Power and Light Company Turkey Point Nuclear Plant 9760 SW. 344th Street Florida City, FL 33035 Don E. Grissette Vice President, Nuclear Training and Performance Improvement Florida Power and Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Rajiv S. Kundalkar Vice President, Nuclear Technical Services Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420
REQUEST FOR ADDITIONAL INFORMATION 2006 STEAM GENERATOR TUBE INSPECTIONS TURKEY POINT NUCLEAR POWER STATION, UNIT 4 DOCKET NUMBER 50-251
- 1. In Florida Power & Light Company letter dated March 8, 2007, the top table in NIS-BB indicates that six tubes in steam generator A had indications greater than 40-percent through-wall. Presumably these six tubes are the tubes with indications of wear near the top of the tubesheet on the cold-leg side of the steam generator. Please discuss why the six tubes in the top table were not listed as preventively plugged (see related question below).
- 2. It was noted that a foreign object search and retrieval (FOSAR) and secondary side inspection established that a foreign object was no longer present at the location where six tubes had experienced wear. Please discuss the scope and results of any secondary side inspections including FOSAR.
- 3. It was indicated that the wear signals in six tubes were in close proximity to the expansion transition and, as such, did not allow sizing using a qualified technique; therefore, all six tubes were conservatively (preventively) plugged and none of the indications required in situ pressure testing. If the indications could not be reliably sized due to their proximity to the expansion transition (and presumably the top of the tubesheet), discuss how it was concluded that in situ testing was not required and that the indications depths were less than the plugging limit (i.e., since the tubes were conservatively (preventively) plugged).
- 4. Please discuss how the six tubes with wear scars near the top of the tubesheet on the cold-leg side of the steam generator were identified (bobbin probe, rotating probe, both probes). If the indications were not detected with the bobbin probe, please discuss the scope (and results) of any rotating probe examinations performed near the top of the tubesheet on the cold leg side of the steam generator (or why such examinations were not performed).
- 5. The Nuclear Regulatory Commission staff could not locate the 15-day report that was previously required to be submitted by Technical Specification 4.4.5.5.a. Please submit another copy of this report.
Enclosure