ML082350897
| ML082350897 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 09/09/2008 |
| From: | Mozafari B Plant Licensing Branch II |
| To: | Stall J Florida Power & Light Co |
| Mozafari B, NRR/ADRO/DORL, 415-2020 | |
| References | |
| TAC MD8875, TAC MD7740 | |
| Download: ML082350897 (3) | |
Text
September 9, 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, UNITS 3 AND 4 - REQUEST FOR ADDITIONAL INFORMATION RELATING TO TURKEY POINT UNITS 3 AND 4, RELIEF REQUEST NOS. 3 AND 4, RISK-INFORMED INSERVICE INSPECTION PROGRAM (TAC NOS. MD8875 AND MD7740)
Dear Mr. Stall:
By separate letters to the U.S. Nuclear Regulatory Commission (NRC) dated December 17, 2007, Florida Power and Light (FPL) submitted Relief Request (RR) No. 3 for the fourth 10-year inservice inspection (ISI) interval for Turkey Point Unit 3 and RR No. 4 for the fourth 10-year ISI interval for Turkey Point Unit 4. FPL requested review and approval of RR Nos. 3 and 4 as a proposed alternative in accordance with paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for the fourth ISI intervals for Turkey Point Units 3 and 4.
The NRC staff has reviewed the Turkey Point Units 3 and 4 information and has determined that additional information is required to complete the reviews. The information requested is provided in the enclosure.
This request was discussed with members of your staff and as a result of the teleconference on August 6, 2008, and your staff agreed that a response would be provided by August 29, 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. 50-250 and 50-251
Enclosure:
As stated cc: See next page
September 9, 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, UNITS 3 AND 4 - REQUEST FOR ADDITIONAL INFORMATION RELATING TO TURKEY POINT UNITS 3 AND 4, RELIEF REQUEST NOS. 3 AND 4, RISK-INFORMED INSERVICE INSPECTION PROGRAM (TAC NOS. MD8875 AND MD7740).
Dear Mr. Stall:
By separate letters to the U.S. Nuclear Regulatory Commission (NRC) dated December 17, 2007, Florida Power and Light (FPL) submitted Relief Request (RR) No. 3 for the fourth 10-year inservice inspection (ISI) interval for Turkey Point Unit 3 and RR No. 4 for the fourth 10-year ISI interval for Turkey Point Unit 4. FPL requested review and approval of RR Nos. 3 and 4 as a proposed alternative in accordance with paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for the fourth ISI intervals for Turkey Point Units 3 and 4.
The NRC staff has reviewed the Turkey Point Units 3 and 4 information and has determined that additional information is required to complete the reviews. The information requested is provided in the enclosure.
This request was discussed with members of your staff and as a result of the teleconference on August 6, 2008, and your staff agreed that a response would be provided by August 29, 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. 50-250 and 50-251
Enclosure:
As stated cc: See next page Distribution:
PUBLIC LPL2-2 R/F RidsNrrPMBMozafari RidsNrrLABClayton RidsNrrDorlLpl2-2 RidsOgcRp RidsAcrsAcnwMailCenter RidsRgn2MailCenter RidsNrrDorl RidsNrrDci RidsOEMailCenter RidsEdoMailCenter RidsNrrDRAApla SDinsmore, NRR MRubin, NRR JCollins Accession Number:ML082350897 OFFICE LPL2-2/PM LPL2-2/LA APLA/BC LPL2-2/BC NAME JPaige for BMozafari BClayton MRubin
- memo dated TBoyce DATE 09/05/08 09/04/08 08/05/08 09/09/08 OFFICIAL RECORD COPY
Florida Power and Light Company TURKEY POINT PLANT cc:
Mr. Mano Nazar Senior Vice President and Nuclear Chief Operating Officer 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 Kiley Plant General Manager Turkey Point Nuclear Plant Florida Power and Light Company 9760 SW. 344th Street Florida City, FL 33035 Olga Hanek, Licensing Florida Power and Light Company Turkey Point Nuclear Plant 9760 SW. 344th Street Florida City, FL 33035 Don E. Grissette Vice President, Nuclear Operations, South Region Florida Power and Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Abdy Khanpour Vice President, Engineering Support Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mark E. Warner Vice President, Nuclear Plant support Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Peter Wells, Acting VP, Nuclear Training and Performance Improvement Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420
REQUEST FOR ADDITIONAL INFORMATION TURKEY POINT PLANT, UNIT 3, RELIEF REQUEST NO. 3 RISK-INFORMED INSERVICE INSPECTION PROGRAM DOCKET NO. 50-250 By letter to the U.S. Nuclear Regulatory Commission dated December 17, 2007, Florida Power and Light (FPL) submitted Relief Request No. 3 for the fourth 10-year inservice inspection (ISI) interval for Turkey Point Unit 3. To complete its review of Relief Request No. 3, the NRC staff requests the following additional information.
- 1) Development of a risk-informed ISI (RI-ISI) program requires estimating conditional core damage probabilities (CCDPs) and conditional large early release probabilities (CLERPs) from the baseline probability risk assessment (PRA). Please briefly describe how the CCDPs and CLERPs that are used in the RI-ISI calculations are generated.
- 2) Has FPL modified or manipulated the cut-sets (or other equivalent logic model results) obtained from the baseline PRA model prior to calculating the CCDPs and CLERPs that are used to develop the RI-ISI program?
- 3) If the cut-sets are modified or manipulated, please describe the technical bases for the changes and explain why the changes were judged necessary.
- 4) If the cut-sets are modified or manipulated, please describe the reviews done on the technical bases for the changes, and the manipulations used to make the changes, to demonstrate that the changes are consistent with the American Society of Mechanical Engineers PRA standard and prior peer review results with respect to the PRA quality requirements needed to support RI-ISI.
ENCLOSURE
REQUEST FOR ADDITIONAL INFORMATION TURKEY POINT PLANT, UNIT 4, RELIEF REQUEST NO. 4 RISK-INFORMED INSERVICE INSPECTION PROGRAM DOCKET NO. 50-251 By letter to the U.S. Nuclear Regulatory Commission dated December 17, 2007, Florida Power and Light (FPL) submitted Relief Request No. 4 for the fourth 10-year inservice inspection (ISI) interval for Turkey Point Unit 4. To complete its review of Relief Request No. 3, the NRC staff requests the following additional information.
- 1) Development of a risk-informed ISI (RI-ISI) program requires estimating conditional core damage probabilities (CCDPs) and conditional large early release probabilities (CLERPs) from the baseline probability risk assessment (PRA). Please briefly describe how the CCDPs and CLERPs that are used in the RI-ISI calculations are generated.
- 2) Has FPL modified or manipulated the cut-sets (or other equivalent logic model results) obtained from the baseline PRA model prior to calculating the CCDPs and CLERPs that are used to develop the RI-ISI program?
- 3) If the cut-sets are modified or manipulated, please describe the technical bases for the changes and explain why the changes were judged necessary.
- 4) If the cut-sets are modified or manipulated, please describe the reviews done on the technical bases for the changes, and the manipulations used to make the changes, to demonstrate that the changes are consistent with the American Society of Mechanical Engineers PRA standard and prior peer review results with respect to the PRA quality requirements needed to support RI-ISI.