Letter Sequence Response to RAI |
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Results
Other: ML14195A221, ML14237A194, ML15030A229, ML15076A468, ML15092A224, ML15092A243, ML15098A175, ML15341A261, ML16005A399, ML16011A009, ML16011A011, ML16011A012, ML16011A013, ML16011A014, ML16011A032, ML16011A036, ML16187A173, ML16270A567, ML16330A117, NRC-16-0014, Comments on the Nrc'S Safety Evaluation Report with Open Items Related to the License Renewal, NRC-16-0061, DTE Response to NRC Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools.
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MONTHYEARML14195A2212014-07-24024 July 2014 Plan for Scoping and Screening Regulatory Audit Regarding the Fermi 2 License Renewal Application Review Project stage: Other ML14237A1942014-09-0505 September 2014 Plan for the Aging Management Program Regulatory Audit Regarding the Fermi 2 License Renewal Application Review Project stage: Other NRC-14-0070, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 12014-10-24024 October 2014 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 1 Project stage: Response to RAI ML14288A6802014-10-29029 October 2014 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 3 Project stage: RAI NRC-14-0072, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 22014-11-18018 November 2014 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 2 Project stage: Response to RAI ML14322A1782014-11-26026 November 2014 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 5 Project stage: RAI NRC-14-0076, Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 32014-12-0101 December 2014 Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 3 Project stage: Response to RAI NRC-14-0083, Response to NRC Request for Additional Information for the Review of License Renewal Application - Sets 4, 5, and 62014-12-30030 December 2014 Response to NRC Request for Additional Information for the Review of License Renewal Application - Sets 4, 5, and 6 Project stage: Response to RAI NRC-15-0001, Response to NRC Request for Additional Information for the Review License Renewal Application - Set 72015-01-0505 January 2015 Response to NRC Request for Additional Information for the Review License Renewal Application - Set 7 Project stage: Response to RAI NRC-15-0013, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Severe Accident Mitigation Alternatives2015-01-0909 January 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Severe Accident Mitigation Alternatives Project stage: Response to RAI NRC-15-0009, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 152015-01-15015 January 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 15 Project stage: Response to RAI NRC-15-0006, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 112015-01-20020 January 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 11 Project stage: Response to RAI NRC-15-0012, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 182015-01-30030 January 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 18 Project stage: Response to RAI NRC-15-0022, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 12 Questions 4.2.2-1 and 4.2.2-2 and Set 15 Question 4.2.6-12015-01-30030 January 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 12 Questions 4.2.2-1 and 4.2.2-2 and Set 15 Question 4.2.6-1 Project stage: Response to RAI NRC-15-0010, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 162015-02-0505 February 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 16 Project stage: Response to RAI ML15030A2292015-02-11011 February 2015 AMP Audit Summary Report Enclosure Project stage: Other NRC-15-0011, Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 172015-02-12012 February 2015 Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 17 Project stage: Response to RAI NRC-15-0029, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 11 Question B.1.22-12015-02-19019 February 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 11 Question B.1.22-1 Project stage: Response to RAI ML15051A3482015-02-24024 February 2015 Schedule Revision and Project Manager Change for the Review of the Fermi 2 License Renewal Application Project stage: Approval NRC-15-0020, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Sets 19, 20, and 212015-03-0505 March 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Sets 19, 20, and 21 Project stage: Response to RAI NRC-15-0023, Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 22015-03-0505 March 2015 Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 2 Project stage: Response to RAI ML15051A5092015-03-11011 March 2015 Summary of Telecon Drai Set 24 - February 9, 2015 Project stage: RAI ML15051A3172015-03-11011 March 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 24 Project stage: RAI ML15051A4202015-03-13013 March 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 23 Project stage: RAI ML15062A3362015-03-13013 March 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 26 Project stage: RAI ML15054A1712015-03-13013 March 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15072A2132015-03-19019 March 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15072A0812015-03-19019 March 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 25 Project stage: RAI ML15070A1612015-03-19019 March 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15051A5072015-03-19019 March 2015 Summary of Telecom Drai Sets 4, 5 and 6 - November 14 2014 Project stage: RAI ML15077A1082015-03-26026 March 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 27 Project stage: RAI ML15082A0462015-03-26026 March 2015 Requests for Additional Information for the Review of the Fermi, Unit 2 License Renewal Application - Set 29, Project stage: RAI ML15078A3372015-03-26026 March 2015 Request for Additional Information for the Review of the Fermi, Unit 2 License Renewal Application - Set 28 Project stage: RAI ML15085A5132015-04-0202 April 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 31 Project stage: RAI ML15099A0162015-04-22022 April 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application Set 32 Project stage: RAI ML15092A2432015-04-22022 April 2015 Summary of Telephone Conference Call Held on November 19, 2014, Between the U.S. Nuclear Regulatory Commission and DTE Electric Concerning Set 7 - November 19, 2014 Project stage: Other ML15076A4682015-04-22022 April 2015 Summary of Telephone Conference Call Held on February 13, 2015, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company Project stage: Other ML15099A6632015-04-23023 April 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15082A1882015-04-27027 April 2015 Summary of Conference Call Held on March 16, 2015, Between the U.S. NRC and DTE Electric Company, Concerning Requests for Additional Information, Set 27 Pertaining to the Fermi 2 License Renewal Application Project stage: RAI ML15072A2032015-04-27027 April 2015 Summary of Teleconference March 6, 2015 Between the U.S. NRC and DTE Electric Company, Concerning RAI Pertaining to the Fermi 2 License Renewal Application Project stage: RAI ML15104A5142015-05-0101 May 2015 Summary of Telephone Conference Call Held on November 25, 2014, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI NRC-15-0045, Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 32015-05-0808 May 2015 Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 3 Project stage: Response to RAI ML15117A5642015-05-13013 May 2015 Summary of Telephone Conference Call Held on April 10, 2015, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15113A1982015-05-13013 May 2015 Summary of Telephone Conference Call Held on December 8, 2014, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15104A3882015-05-13013 May 2015 Summary of Telephone Conference Call Held on March 25, 2015, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15098A3022015-05-13013 May 2015 Summary of Telephone Conference Call Held on April 7,2015, Between the U.S.Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15098A1752015-05-13013 May 2015 Summary of Telephone Conference Call Held on March 17,2015, Between the Us Nuclear Regulatory Commission Project stage: Other ML15126A0042015-05-15015 May 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application-Set 34 Project stage: RAI ML15104A6322015-05-15015 May 2015 Summary of Telephone Conference Call Held on November 17, 2014 Between NRC and DTE Electric Co Re Requests for Additional Information on Fermi 2 License Renewal Application Project stage: RAI ML15132A4272015-05-18018 May 2015 March 27, 2015 Summary of Telephone Conference Call Held Between the U.S. NRC and DTE Electric Company Concerning Requests for Additional Information Pertaining to the Severe Accident Mitigation Alternatives Review of the Fermi, Unit 2 Project stage: RAI 2015-02-19
[Table View] |
Similar Documents at Fermi |
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Category:Letter type:NRC
MONTHYEARNRC-24-0007, Report of Changes to Quality Assurance Program for Radioactive Material Packages2024-01-12012 January 2024 Report of Changes to Quality Assurance Program for Radioactive Material Packages NRC-24-0002, Clarification for Request for Additional Information Responses for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.122024-01-12012 January 2024 Clarification for Request for Additional Information Responses for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.12 NRC-23-0079, Transmittal of Revision 1 of the Core Operating Limits Report for Cycle 222023-12-14014 December 2023 Transmittal of Revision 1 of the Core Operating Limits Report for Cycle 22 NRC-23-0077, Submittal of Revision 50 to the Fermi 2 Radiological Emergency Response Preparedness Plan2023-12-0404 December 2023 Submittal of Revision 50 to the Fermi 2 Radiological Emergency Response Preparedness Plan NRC-23-0073, Guarantee of Payment of Deferred Premiums2023-11-29029 November 2023 Guarantee of Payment of Deferred Premiums NRC-23-0071, Response to Request for Additional Information (RAI) for Exigent License Amendment Request for Revision of Technical Specification (TS) 3.8.1 AC Sources - Operating2023-10-13013 October 2023 Response to Request for Additional Information (RAI) for Exigent License Amendment Request for Revision of Technical Specification (TS) 3.8.1 AC Sources - Operating NRC-23-0062, Response to Request for Additional Information for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.122023-10-12012 October 2023 Response to Request for Additional Information for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.12 NRC-23-0068, Exigent License Amendment Request for Revision of Technical Specification (TS) 3.8.1 AC Sources - Operating2023-09-28028 September 2023 Exigent License Amendment Request for Revision of Technical Specification (TS) 3.8.1 AC Sources - Operating NRC-23-0064, Additional Supplemental Information to Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-09-11011 September 2023 Additional Supplemental Information to Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0057, Independent Spent Fuel Storage Installation Cask Registration2023-08-31031 August 2023 Independent Spent Fuel Storage Installation Cask Registration NRC-23-0054, Enrico Fermi Atomic Power Plant, Unit 1, Annual Report for Period Ending June 30 20232023-08-31031 August 2023 Enrico Fermi Atomic Power Plant, Unit 1, Annual Report for Period Ending June 30 2023 NRC-23-0056, Inservice Testing (IST) Program for the Fourth 10-Year Inspection Interval2023-08-31031 August 2023 Inservice Testing (IST) Program for the Fourth 10-Year Inspection Interval NRC-23-0061, Clarification for NRC-23-0059, Response to Request for Additional Information for Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water..2023-08-30030 August 2023 Clarification for NRC-23-0059, Response to Request for Additional Information for Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water.. NRC-23-0059, Response to Request for Additional Information Exigent License Amendment Request for Technical Specification 3.7.2,Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-08-25025 August 2023 Response to Request for Additional Information Exigent License Amendment Request for Technical Specification 3.7.2,Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0060, Supplemental Information to Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-08-25025 August 2023 Supplemental Information to Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0053, Independent Spent Fuel Storage Installation Cask Registration2023-08-23023 August 2023 Independent Spent Fuel Storage Installation Cask Registration NRC-23-0050, Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-08-10010 August 2023 Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0048, Independent Spent Fuel Storage Installation Cask Registration2023-08-0101 August 2023 Independent Spent Fuel Storage Installation Cask Registration NRC-23-0049, Request for Enforcement Discretion for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-07-24024 July 2023 Request for Enforcement Discretion for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0043, Independent Spent Fuel Storage Installation, Cask Registration2023-06-27027 June 2023 Independent Spent Fuel Storage Installation, Cask Registration NRC-23-0020, License Amendment Request for a Risk Informed Approach to ECCS Strainer Performance2023-06-13013 June 2023 License Amendment Request for a Risk Informed Approach to ECCS Strainer Performance NRC-23-0039, Request for Enforcement Discretion for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-06-0606 June 2023 Request for Enforcement Discretion for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0030, Inservice Inspection-Nondestructive Examination (ISI-NDE) Program for the Fourth 10-Year Inspection Interval2023-06-0505 June 2023 Inservice Inspection-Nondestructive Examination (ISI-NDE) Program for the Fourth 10-Year Inspection Interval NRC-23-0029, Snubber Program for the Fourth 10-Year Testing Interval2023-06-0505 June 2023 Snubber Program for the Fourth 10-Year Testing Interval NRC-23-0037, 56542-EN 56542 - Fermi2023-05-26026 May 2023 56542-EN 56542 - Fermi NRC-23-0031, Response to NRC Request from Audit of License Amendment Request to Revise Technical Specification 3.8.1, AC Sources -Operating,' Emergency Diesel Generator Voltage and Frequency Surveillance Requirements2023-05-16016 May 2023 Response to NRC Request from Audit of License Amendment Request to Revise Technical Specification 3.8.1, AC Sources -Operating,' Emergency Diesel Generator Voltage and Frequency Surveillance Requirements NRC-23-0002, License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.122023-05-0505 May 2023 License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.12 NRC-23-0010, License Amendment Request to Correct Non-Conservative Technical Specification 3.4.5, RCS Pressure Isolation Valve (PIV) Leakage2023-05-0505 May 2023 License Amendment Request to Correct Non-Conservative Technical Specification 3.4.5, RCS Pressure Isolation Valve (PIV) Leakage NRC-23-0017, Annual Radioactive Effluent Release Report and Radiological Environmental Operating Report2023-04-28028 April 2023 Annual Radioactive Effluent Release Report and Radiological Environmental Operating Report NRC-23-0025, Submittal of 2022 Safety Relief Valve Challenge Report, Main Steam Bypass Lines Report, and ECCS Cooling Performance Evaluation Model Changes or Errors Report2023-04-28028 April 2023 Submittal of 2022 Safety Relief Valve Challenge Report, Main Steam Bypass Lines Report, and ECCS Cooling Performance Evaluation Model Changes or Errors Report NRC-23-0018, Annual Non-Radiological Environmental Operating Report2023-04-26026 April 2023 Annual Non-Radiological Environmental Operating Report NRC-23-0024, Levels and Sources of Property Insurance Coverage2023-04-0303 April 2023 Levels and Sources of Property Insurance Coverage NRC-23-0021, ISFSI, Decommissioning Funding Plan Update2023-03-30030 March 2023 ISFSI, Decommissioning Funding Plan Update NRC-23-0016, Decommissioning Funding Status Report2023-03-30030 March 2023 Decommissioning Funding Status Report NRC-23-0015, Decommissioning Funding Status Report for Fermi 12023-03-30030 March 2023 Decommissioning Funding Status Report for Fermi 1 NRC-23-0011, License Renewal Commitment 7c: Transmittal of Core Plate Hold-Down Bolt Analysis2023-03-0707 March 2023 License Renewal Commitment 7c: Transmittal of Core Plate Hold-Down Bolt Analysis NRC-22-0026, License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Emergency Diesel Generator Voltage and Frequency Surveillance Requirements2022-12-16016 December 2022 License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Emergency Diesel Generator Voltage and Frequency Surveillance Requirements NRC-22-0051, DTE Electric Company - Guarantee of Payment of Deferred Premiums2022-11-29029 November 2022 DTE Electric Company - Guarantee of Payment of Deferred Premiums NRC-22-0052, Replacement Files for Submittal of Revision 24 to the Fermi 2 Updated Final Safety Analysis Report (UFSAR) Through EIE on November 9, 20222022-11-17017 November 2022 Replacement Files for Submittal of Revision 24 to the Fermi 2 Updated Final Safety Analysis Report (UFSAR) Through EIE on November 9, 2022 NRC-22-0046, Submittal of Biennial Review of the Fermi 1 Safety Analysis Report2022-11-14014 November 2022 Submittal of Biennial Review of the Fermi 1 Safety Analysis Report NRC-22-0041, Evacuation Time Estimate Report2022-10-0505 October 2022 Evacuation Time Estimate Report NRC-22-0033, Enrico Fermi Atomic Power Plant, Unit 1 - Annual Report for Period Ending June 30, 20222022-08-29029 August 2022 Enrico Fermi Atomic Power Plant, Unit 1 - Annual Report for Period Ending June 30, 2022 NRC-22-0030, Inservice Inspection Summary Report2022-08-10010 August 2022 Inservice Inspection Summary Report NRC-22-0023, Application to Revise Technical Specifications to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements2022-08-0404 August 2022 Application to Revise Technical Specifications to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements NRC-22-0022, Annual Non-Radiological Environmental Operating Report2022-04-29029 April 2022 Annual Non-Radiological Environmental Operating Report NRC-22-0021, Annual Radioactive Effluent Release Report and Radiological Environmental Operating Report2022-04-29029 April 2022 Annual Radioactive Effluent Release Report and Radiological Environmental Operating Report NRC-22-0020, Enrico Fermi Atomic Power Plant, Unit No. 1 & Fermi 2 Power Plant - 10 CFR 20.2206 Report of Individual Monitoring2022-04-28028 April 2022 Enrico Fermi Atomic Power Plant, Unit No. 1 & Fermi 2 Power Plant - 10 CFR 20.2206 Report of Individual Monitoring NRC-22-0003, Submittal of 2021 Safety Relief Valve Challenge Report, Main Steam Bypass Lines Report, and ECCS Cooling Performance Evaluation Model Changes or Errors Report2022-04-26026 April 2022 Submittal of 2021 Safety Relief Valve Challenge Report, Main Steam Bypass Lines Report, and ECCS Cooling Performance Evaluation Model Changes or Errors Report NRC-22-0019, Submittal of the National Pollutant Discharge Elimination System Permit Application for Reissuance2022-04-0404 April 2022 Submittal of the National Pollutant Discharge Elimination System Permit Application for Reissuance NRC-22-0011, Enrico Fermi Atomic Power Plant, Unit No. 1 - Decommissioning Funding Status Report2022-03-31031 March 2022 Enrico Fermi Atomic Power Plant, Unit No. 1 - Decommissioning Funding Status Report 2024-01-12
[Table view] Category:Response to Request for Additional Information (RAI)
MONTHYEARNRC-24-0002, Clarification for Request for Additional Information Responses for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.122024-01-12012 January 2024 Clarification for Request for Additional Information Responses for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.12 NRC-23-0071, Response to Request for Additional Information (RAI) for Exigent License Amendment Request for Revision of Technical Specification (TS) 3.8.1 AC Sources - Operating2023-10-13013 October 2023 Response to Request for Additional Information (RAI) for Exigent License Amendment Request for Revision of Technical Specification (TS) 3.8.1 AC Sources - Operating NRC-23-0062, Response to Request for Additional Information for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.122023-10-12012 October 2023 Response to Request for Additional Information for License Amendment Request to Revise Technical Specification 3.8.1, AC Sources - Operating, Surveillance Requirement SR 3.8.1.12 NRC-23-0061, Clarification for NRC-23-0059, Response to Request for Additional Information for Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water..2023-08-30030 August 2023 Clarification for NRC-23-0059, Response to Request for Additional Information for Exigent License Amendment Request for Technical Specification 3.7.2, Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water.. NRC-23-0059, Response to Request for Additional Information Exigent License Amendment Request for Technical Specification 3.7.2,Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS)2023-08-25025 August 2023 Response to Request for Additional Information Exigent License Amendment Request for Technical Specification 3.7.2,Emergency Equipment Cooling Water (Eecw)/Emergency Equipment Service Water (Eesw) System and Ultimate Heat Sink (UHS) NRC-23-0031, Response to NRC Request from Audit of License Amendment Request to Revise Technical Specification 3.8.1, AC Sources -Operating,' Emergency Diesel Generator Voltage and Frequency Surveillance Requirements2023-05-16016 May 2023 Response to NRC Request from Audit of License Amendment Request to Revise Technical Specification 3.8.1, AC Sources -Operating,' Emergency Diesel Generator Voltage and Frequency Surveillance Requirements NRC-21-0045, Response to Request for Additional Information Regarding License Amendment Request to Revise the Fermi 2 Technical Specifications2021-08-17017 August 2021 Response to Request for Additional Information Regarding License Amendment Request to Revise the Fermi 2 Technical Specifications NRC-21-0032, Response to Request for Additional Information Regarding Revised Relief Request RR-A39 for the Fourth Ten-Year Inservice Inspection Interval2021-07-0101 July 2021 Response to Request for Additional Information Regarding Revised Relief Request RR-A39 for the Fourth Ten-Year Inservice Inspection Interval NRC-21-0007, Response to Request for Additional Information Regarding Revised Relief Request RR-A39 for the Fourth Ten-Year Inservice Inspection Interval2021-05-27027 May 2021 Response to Request for Additional Information Regarding Revised Relief Request RR-A39 for the Fourth Ten-Year Inservice Inspection Interval NRC-20-0077, Response to Request for Additional Information Regarding Exemption from the Annual Force on Force Training Requirements of 10 CFR 73, Appendix B, Section VI, Due to the COVID-19 Public Health Emergency2020-12-0303 December 2020 Response to Request for Additional Information Regarding Exemption from the Annual Force on Force Training Requirements of 10 CFR 73, Appendix B, Section VI, Due to the COVID-19 Public Health Emergency NRC-20-0057, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Change Surveillance Intervals to Accommodate a 24-Month Fuel Cycle2020-09-11011 September 2020 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Change Surveillance Intervals to Accommodate a 24-Month Fuel Cycle NRC-20-0046, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Utilize Neutron Absorbing Inserts in Criticality Safety Analysis for Fermi 2 Spent Fuel Storage Racks2020-07-30030 July 2020 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Utilize Neutron Absorbing Inserts in Criticality Safety Analysis for Fermi 2 Spent Fuel Storage Racks NRC-19-0084, Response to Request for Additional Information Regarding Inservice Testing Program Relief Request VRR-006 for the Fourth 10-Year Interval2019-12-0606 December 2019 Response to Request for Additional Information Regarding Inservice Testing Program Relief Request VRR-006 for the Fourth 10-Year Interval NRC-19-0039, Response to NRC Request for Additional Information for License Amendment Request to Revise Technical Specification 3.3.5.3, Reactor Pressure Vessel (RPV) Water Inventory Control Instrumentation2019-06-18018 June 2019 Response to NRC Request for Additional Information for License Amendment Request to Revise Technical Specification 3.3.5.3, Reactor Pressure Vessel (RPV) Water Inventory Control Instrumentation NRC-19-0045, Response to Request for Additional Information Regarding Snubber Program Relief Request RR-S1 for the Fourth 10-Year Interval2019-06-12012 June 2019 Response to Request for Additional Information Regarding Snubber Program Relief Request RR-S1 for the Fourth 10-Year Interval NRC-19-0042, Responses to Requests for Additional Information Regarding Relief Requests for the Inservice Inspection Program Fourth Ten-year Interval2019-06-11011 June 2019 Responses to Requests for Additional Information Regarding Relief Requests for the Inservice Inspection Program Fourth Ten-year Interval NRC-18-0045, Response to NRC Requests for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control2018-08-0707 August 2018 Response to NRC Requests for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control NRC-18-0040, Supplemental Information in Response to NRC Request for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control2018-06-27027 June 2018 Supplemental Information in Response to NRC Request for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control NRC-18-0032, Response to NRC Request for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control2018-05-17017 May 2018 Response to NRC Request for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control NRC-18-0019, Response to NRC Request for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.2018-04-0404 April 2018 Response to NRC Request for Additional Information for License Amendment Request to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control. NRC-18-0015, Response to Request for Additional Information (Set 1) Regarding License Amendment Request to Revise Technical Specifications to Eliminate Main Steam Line Radiation Monitor Reactor Trip and Primary Containment Isolation System Group 1.2018-02-27027 February 2018 Response to Request for Additional Information (Set 1) Regarding License Amendment Request to Revise Technical Specifications to Eliminate Main Steam Line Radiation Monitor Reactor Trip and Primary Containment Isolation System Group 1. NRC-18-0014, Response to Request for Additional Information Regarding Relief Request No. RR-A37, Revision 1, for the Inservice Inspection Program Third 10-Year Interval2018-02-0606 February 2018 Response to Request for Additional Information Regarding Relief Request No. RR-A37, Revision 1, for the Inservice Inspection Program Third 10-Year Interval NRC-18-0001, DTE Energy Company - Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification Section 3.7.22018-01-0808 January 2018 DTE Energy Company - Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification Section 3.7.2 NRC-17-0036, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications for Emergency Core Cooling System Instrumentation and Reactor Core Isolation Cooling System Instrumentation2017-03-30030 March 2017 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications for Emergency Core Cooling System Instrumentation and Reactor Core Isolation Cooling System Instrumentation NRC-16-0067, Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2016-12-0909 December 2016 Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident NRC-16-0049, Response to Request for Additional Information Regarding License Amendment Request to Revise Integrated Leak Rate Test - Type a and Type C Test Intervals2016-08-11011 August 2016 Response to Request for Additional Information Regarding License Amendment Request to Revise Integrated Leak Rate Test - Type a and Type C Test Intervals NRC-16-0042, Response to NRC Request for Additional Information Regarding Environmental Review of the License Renewal Application, Severe Accident Mitigation Alternatives Sensitivity Analysis2016-07-19019 July 2016 Response to NRC Request for Additional Information Regarding Environmental Review of the License Renewal Application, Severe Accident Mitigation Alternatives Sensitivity Analysis NRC-16-0038, Response to Request for Additional Information Regarding Revised Relief Request PRR-007 for the Inservice Testing Program Third 10-Year Interval2016-06-23023 June 2016 Response to Request for Additional Information Regarding Revised Relief Request PRR-007 for the Inservice Testing Program Third 10-Year Interval NRC-16-0021, Supplemental Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 17 RAI 4.3.3-12016-03-10010 March 2016 Supplemental Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 17 RAI 4.3.3-1 NRC-16-0003, Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 382016-02-0101 February 2016 Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 38 NRC-16-0004, Compliance with March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051) and Response to Request for Additional Information2016-01-20020 January 2016 Compliance with March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051) and Response to Request for Additional Information NRC-15-0089, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 372015-09-24024 September 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 37 NRC-15-0083, Supplemental Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 332015-08-20020 August 2015 Supplemental Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 33 NRC-15-0077, Response to Request for Additional Information (RAI) Regarding the License Amendment Request to Revise the Emergency Action Level (EAL) Scheme for the Emergency Plan2015-07-28028 July 2015 Response to Request for Additional Information (RAI) Regarding the License Amendment Request to Revise the Emergency Action Level (EAL) Scheme for the Emergency Plan NRC-15-0066, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 332015-07-0606 July 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 33 2024-01-12
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Vito A. Kaminskas Site Vice President DTE Energy Company 6400 N. Dixie Highway, Newport, MI 48166 Tel: 734.586.6515 Fax: 734.586.4172 Email: kaminskasv@dteenergy.com DTE Ensergy-10 CFR 54 September 24, 2015 NRC-15-0089 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington D C 20555-0001
References:
- 1) Fermi 2 NRC Docket No. 50-341 NRC License No. NPF-43
- 2) DTE Electric Company Letter to NRC, "Fermi 2 License Renewal Application," NRC-14-0028, dated April 24, 2014 (ML14121A554)
- 3) NRC Letter, "Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 37 (TAC No.
MF4222)," dated September 1, 2015 (ML15237A044)
Subject:
Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 37 In Reference 2, DTE Electric Company (DTE) submitted the License Renewal Application (LRA) for Fermi 2. In Reference 3, NRC staff requested additional information regarding the Fermi 2 LRA. Enclosure 1 to this letter provides the DTE response to the request for additional information (RAI). Enclosure 2 to this letter provides an additional LRA revision that was identified as a result of a DTE corrective action document.
No new commitments are being made in this submittal.
Should you have any questions or require additional information, please contact Lynne Goodman at 734-586-1205.
USNRC NRC-15-0089 Page 2 I declare under penalty of perjury that the foregoing is true and correct.
Exe uted on Sept b '24, 2015 Vito A. Kaminskas Site Vice President Nuclear Generation
Enclosures:
- 1) DTE Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 37
- 2) Additional License Renewal Application Revision cc: NRC Project Manager NRC License Renewal Project Manager NRC Resident Office Reactor Projects Chief, Branch 5, Region III Regional Administrator, Region III Michigan Public Service Commission, Regulated Energy Division (kindschl@ michigan.gov)
Enclosure 1 to NRC-15-0089 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 DTE Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 37
Enclosure 1 to NRC-15-0089 Page 1 Set 37 RAI 4.3.3-lb
Background
By letter dated May 21, 2015, the staff issuedfollow-up RAI 4.3.3-la regardingthe plant-specific implementation of the generic procedures in EPRI Technical Report 1024995. Item 2 of RAI 4.3.3-la requested that the applicant:
Select a number of representative systems and provide the evaluation of the EAF analysis, ranking of sentinel locations, and selection of limiting sentinel locations. The systems should be selected so that they demonstrate the adequacy of the methodology to identify the limiting plant-specific component locations. Considerationshould be given to the thermal zones, materials, transients,and complexity of the systems selected. The systems selected should demonstrate that the methodology conservatively evaluates EAF effects, with the same degree of analyticalrigorfor all locations, to identify the bounding locations.
Item 3 of RAI 4.3.3-la requested that the applicant:
Describe andjustify any engineeringjudgement, plant-specific assumptions, andplant-specific criteria used in the EAF analysis or screening process. This should include the systematic process used to eliminate sentinel locations as limiting and examples showing how the process was implemented.
In its response dated June 18, 2015, the applicantstated that the same degree of analyticalrigor was not always appliedwhen determining the EAF CUF (CUFen) values of a location. The responsefor item 2 also states that the methodology used to determine bounding locations accountsfor differences in the degree of analyticalrigor. The response to item 3 does not provide the technicaljustification or systematic process used to accountfor differences in degree of analyticalrigor.
Issue The relative ranking of analyzed locations based on CUFen values may be influenced by applying different degrees of analyticalrigor Therefore, the subsequent identification of bounding locations may also be affected. The staff cannot determine the adequacy of the bounding locations because it lacks sufficient information regardingthe approachused to accountfor differences in analyticalrigor Request Describe the approach used to accountfor differences in analyticalrigorwhen determining bounding locations. Justify that the approach retains an appropriatelevel of conservatism in the methodology being used to identify plant-specific bounding locations.
to NRC-15-0089 Page 2
Response
Differences in analytical rigor in fatigue analyses are associated with the following:
e Analysis using design severity plant transients produces different cumulative usage factor (CUF) values for a component location than analysis of actual severity plant transients.
Fatigue calculations performed using actual severity plant transients, when available, are used to calculate lower CUFs than those performed using design severity plant transients.
- Design by analysis (ASME Section III, NB-3200) versus design by rule (ASME Section III, NB-3600), where design by analysis is a more rigorous method that is often used to reduce calculated fatigue usage obtained by a design by rule method.
- Fatigue calculations where each set of load set transient pairs are used versus calculations that reduce the number of load set transient pairs by enveloping multiple plant transients to one or a very few sets of bounding transients ("bundled transients") that are applied to the total number of transients applicable to the location being analyzed. Combining transients is a common practice used to reduce the time required to perform fatigue analysis where fatigue usage margin is sufficiently large, which artificially inflates the fatigue usage for these component locations as compared to other component locations.
The approach used to account for differences in analytical rigor is as follows:
- As discussed in DTE's response to RAI 4.3.3-la dated June 18, 2015 (DTE letter NRC-15-0067), plant fluid systems were subdivided into subsystems in a manner consistent with the fatigue analyses comprising the current design basis and the screening process compared all components with calculated fatigue usage in the same fluid subsystem. As demonstrated in Tables 1 and 2 of the DTE response to RAI 4.3.3-la dated June 18, 2015, the method used to calculate fatigue usage (design by analysis (NB-3200) or design by rule (NB-3600)) was identified. In many cases the CUF values resulting from the design by analysis method were larger than those calculated using the more conservative design by rule method due to their being associated with nozzles where the transients are more severe. Therefore, their inclusion as bounding locations is conservative. In cases where a more refined design by analysis method was used to reduce calculated fatigue usage (e.g., location FW-04 in Table 1), CUF values using the to NRC-15-0089 Page 3 design by rule method were used to ensure fatigue usage was being compared on a consistent basis. This is the process used for each subsystem.
Similarly to the review for analytical method, fatigue calculations were reviewed to identify where bundled transients were applied. Engineering experience and judgment were applied to ensure that locations with higher calculated fatigue usage simply due to the use of a lesser degree of rigor (e.g., bundling of individual transients) are not inappropriately identified as bounding locations in a given system/subsystem. Compared to analysis using individual transients, bundling of some of these individual transients will produce artificially high CUFs. An example of this was provided in Table 1 of the DTE response to RAI 4.3.3-la dated June 18, 2015 for the feedwater penetration where the penetration body fatigue usage was calculated by bundling transients. If one were to simply use the design CUF to select bounding locations, this would appear to be bounding as compared to the FW-04 location where feedwater, reactor core isolation cooling (RCIC) and RWCU flows converge. However, FW-04 and the feedwater nozzles experience more severe thermal transients and selection of the penetration body as a bounding location would be non-conservative, so selection of the feedwater nozzles and RCIC/RWCU tee locations are appropriate for this system. This process is used consistently throughout the evaluation.
LRA Revisions:
None.
Enclosure 1 to NRC-15-0089 Page 4 Set 37 RAI 4.3.3-2
Background
By letter dated June 26, 2015, the applicant submitted the annual update for LRA Section 4.3.3.
Page 22 of Enclosure 1 states thatprescreening is performed to identify all ASME Class 1 reactorcoolantpressure boundary locations with CUF calculationsand that the components with the highest CUF values are evaluatedfor EAF effects. On the following page of the annual update, there is a seven step summary of the screening approach. The third step in the approach (including the prescreening step) is to apply the NUREG/CR-6909fatigue curves. Therefore, the first screening step includes CUFen values determined using ASME fatigue curves.
By letter dated June 18, 2015, the applicant responded to follow-up RAI 4.3.3-la. Page 7 of lists the site-specific activitiesfor identifying the bounding locations. Page 7 lists two primary activities, each of which have three subtasks. The second subtask under the first primary activity involves selecting the highest CUFen values, which were determined using the designfatigue curves from NUREG/CR-6909,for further EAF analysis. The following page of the letter provides a three step processfor selecting additional bounding locations, which are focused on reducing bounding locations.
Issue The process used to screen locations, identify bounding locations,and reduce bounding locations has been partiallysummarized in the response to RAI 4.3.3-1, response to follow-up RAI 4.3.3-la, and the annual update. However; none of these documentsfully describe the process.
Additionally, when reviewed as a group, the documents still leave areas of uncertaintyand potentially inconsistentsteps/activities. The process is not defined clearly enough to be evaluated by the staff Request Describe the steps (from prescreening to establishing the final bounding locations) of the screeningprocess in sufficient detail to be performed independently on a random system. Each step should include plant-specific criteriathat was used in the analysis. Describe andjustify any engineeringjudgment, all plant-specific assumptions, and all plant-specific criteriafor each step in the process.
Response
The steps in the process used at Fermi 2 are described below. This process was used consistently. Engineering judgment was applied only where differences in analytical rigor exist as described in the responses to RAIs 4.3.3-1b and 4.3.3-3. No plant-specific criteria were used.
The only plant-specific assumptions are related to dissolved oxygen (DO) content associated with each chemistry zone used to calculate Fen multipliers.
to NRC-15-0089 Page 5 Fatigue usage was previously updated using projected 60 year transient cycles and accounting for applicable power uprate conditions in calculation DC-6222, Revision A, "ASME Operating Plant Fatigue Assessment for License Renewal - RCPB Components." This calculation addressed each material type evaluated for fatigue for the entire scope of Class 1 components.
These locations are described in LRA Table 4.3-2 (Reactor Pressure Vessel), LRA Table 4.3-4 (Reactor Recirculation Pumps), LRA Table 4.3-6 (Class 1 Piping), and LRA Table 4.3-7 (Class 1 Valves).
- 1) Pre-screening is performed on the population of Class 1 components with calculated CUFs to establish whether the component requires further environmentally assisted fatigue (EAF) evaluation.
a) Locations not exposed to reactor water are screened out, since EAF is not applicable.
b) Locations that are not part of the reactor coolant pressure boundary are screened out since they do not pose a threat to pressure boundary leakage and, in the case of RPV internal components, aging is managed using BWRVIP Inspection and Evaluation guidelines, consistent with NUREG-1801.
- 2) The remaining components are evaluated. Because a system/subsystem or component location with a lower design CUF could have a higher resultant CUFen once the Fen multiplier is applied, each material type for each of the locations listed in the LRA tables is retained for further EAF evaluation (refer also to Tables 1 and 2 of DTE response dated June 18, 2015).
- 3) To determine the bounding EAF locations for these Class 1 component locations in each system/subsystem:
a) NUREG/CR-6909 fatigue curves are applied, making use of design information for alternating stresses, to obtain NUREG/CR-6909 CUF values to which NUREG/CR-6909 Fen multipliers can be applied in Step 3c.
b) Time-weighted Fen multipliers reflecting periods of normal water chemistry as well as hydrogen water chemistry and on-line noble metal chemistry availability are calculated using the least favorable conditions for sulfur content in metal, strain rate and temperature along with the zone-specific DO values.
c) CUFen values are obtained for each of the evaluated Class 1 component locations by multiplying the NUREG/CR-6909 CUFs by time-weighted average Fen multipliers that take into account normal water chemistry, hydrogen water chemistry and online noble metal chemistry conditions.
d) The CUFen values are tabulated for each of the Class 1 component locations by system/subsystem.
- 4) Bounding locations consist of locations meeting either of the following criteria:
a) NUREG/CR-6260 locations (including each material type for these locations).
b) For locations with CUFen > 0.8, the highest CUFen values in each system/subsystem prior to any further refinement to Fen values to reduce CUFen values.
LRA Revisions:
None.
Enclosure 1 to NRC-15-0089 Page 6 Set 37 RAI 4.3.3-3
Background
LRA Table 4.3-8, "EAF Screening of Fermi 2 Locations," contains bounding locations with CUFen values projected to exceed 1.0. These locations will be managed by the Fatigue Monitoring Programandfurther actions will be taken in accordancewith the AMP. Additional actions may include refining the fatigue analyses to produce CUFen values below 1.0.
Issue It is unclear to the staff how bounding locations with CUFen values projected to exceed 1.0 will be affected if the fatigue analyses are refined to reduce the CUFe~ value.
Request Describe the process used to rank locations and identify leading locations that have been (or will be) re-evaluatedbecause the environmentally adjusted CUF exceeds the limit of 1.0. Justify that the process retains an appropriatelevel of conservatism to identify plant-specific bounding locations.
Response
The overall process used to rank and identify leading locations is described in the responses to RAIs 4.3.3-1b and 4.3.3-2 above.
In the original LRA submittal, LRA Table 4.3-8 listed EAF CUF (CUFe") values based on application of a simple multiplier from NUREG/CR-6583 for carbon and low-alloy steels, NUREG/CR-5704 for austenitic stainless steels and NUREG/CR-6909 for nickel alloys. LRA Table 4.3-8 only listed NUREG/CR-6260 generic locations. Subsequent to this, as noted in the DTE response to RAI 4.3.3-la dated June 18, 2015 and in the response to RAI 4.3.3-2 above, usage and EAF CUF values were re-calculated using NUREG/CR-6909 for each of the locations exposed to reactor coolant (i.e., those retained following the pre-screening process described above). These calculations applied the air fatigue curves and Fen values from NUREG/CR-6909, thereby providing a more consistent basis for comparison and ranking of component locations.
Fe" values were calculated based on plant-specific dissolved oxygen chemistry concentrations and initially used the design temperature to maximize the calculated EAF CUF.
For component locations where the environmentally adjusted CUF exceeded the limit of 1.0, Fen values were re-calculated using average transient temperatures or maximum operating temperatures, consistent with NUREG/CR-6909. This use of average transient or maximum operating temperature reduced the fatigue usage for the SLC piping inside containment and core spray penetration X-16AIB body. While other locations are exposed to hot fluid, the core spray penetrations are not exposed to hot fluid. Also, at the location where the SLC piping inside to NRC-15-0089 Page 7 containment has higher usage due to the large geometric discontinuity at the piping to valve weld, the temperature is well below 302°F (150"C) because the line is stagnant. Below 302"F (150"C), the multiplier for the transformed service temperature used in calculating Fen values is at a minimum for stainless steel. Therefore, it is appropriately conservative to use lower temperature values for these locations. After re-calculation, the CUFen values for the SLC piping inside containment and the core spray penetrations body were below 0.8.
Following re-calculation of CUFen values using average transient temperatures or maximum operating temperatures, four component locations have values whose environmentally adjusted CUF exceeds the limit of 1.0. They are the stainless steel safe end of the feedwater nozzles, core AP nozzle, CRD nozzles, and condensing chambers. The stainless steel safe end of the feedwater nozzles and the CRD nozzles were included in the list of locations where the environmentally adjusted CUF exceeds the limit of 1.0 in LRA Table 4.3-8. The core AP nozzle and condensing chambers were not initially included in original LRA Table 4.3-8 and the process used to evaluate all Class 1 component locations is more conservative than that originally used in the LRA. These components were added to Table 4.3-8 by DTE letter NRC-15-0068, dated June 26, 2015, which provided the LRA annual update.
The component locations to be re-evaluated include the feedwater nozzles (stainless steel safe end), core AP nozzle, CRD nozzles and condensing chambers. Locations with a CUFen value greater than 1.0 will remain the bounding locations unless the re-evaluation shows that the current CUFen values are a result of significant over-conservatisms in the current analysis that would have resulted in them not being selected initially if they had been analyzed in a manner consistent with other component locations.
The intended evaluation approach is as indicated below for each component.
Feedwater nozzles:
Fatigue usage for the safe end of the feedwater nozzles is dominated by the hot standby transient and the majority of these are associated with RCIC, which was significantly influenced by the Northeast blackout event of 2003. Therefore, the hot standby transient and RCIC injection will be treated as unique transients. Reductions in CUFen can be significant, but this location is known to be a high fatigue usage location and will not be excluded.
Core AP nozzle / CRD nozzles:
Since the current analysis uses bundled transients, the transients will be separated and fatigue usage re-calculated by taking information for each transient in the design stress report (including power uprate effects). This is expected to result in lower fatigue usage and lower Fen multipliers being applied to some transient pairs. This is likely to be sufficient to lower projected CUFen values below 1.0, but these two locations will be retained as bounding locations.
Condensing chambers:
A comparison of the design fatigue calculation for Fermi 2 with analytical work performed at other plants suggests that the calculated usage at this location may be significantly over-to NRC-15-0089 Page 8 predicted. A NB-3200 stress and fatigue analysis is planned which is expected to identify the level of conservatism in the current CUFen value. This location will be retained as a bounding location unless the revised CUFen value demonstrates that the recalculated value is less than that of any of the NUREG/CR-6260 locations in the same chemistry zone. Therefore, since the lowest value for the RPV upper region is the feedwater nozzle-vessel intersection with a CUFen value of 0.115, this location will be retained as a bounding location if the CUFen value is greater than 0.115.
Therefore, since the process identified additional locations not evaluated originally in the LRA and all locations with reduced CUFen values are retained unless they are found to be significantly over-conservative and bounded by other locations accounting for analytical rigor, the process retains the appropriate level of conservatism.
LRA Revisions:
None.
Enclosure 2 to NRC-15-0089 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 Additional License Renewal Application Revision to NRC-15-0089 Page 1 As part of a Fermi 2 condition assessment resolution document (CARD), it was identified that a revision to the License Renewal Application (LRA) was needed. The aging management review results of the emergency diesel generator (EDG) system are provided in LRA Table 3.3.2-10.
The EDG air start system contains components with the following attributes: the component type is tubing, the material is copper alloy, and the environments are indoor air (external) and condensation (internal). LRA Table 3.3.2-10 does include a line item for copper tubing in an indoor air environment, but does not include a line item for copper tubing in a condensation environment. LRA Table 3.3.2-10 is revised as indicated on the following page to add the line item.
Enclosure 2 to NRC-15-0089 Page 2 Table 3.3.2-10 Emergency Diesel Generator System Summary of Aging Management Evaluation Table 3.3.2-10: Emergency Diesel Generator System Aging Effect Aging Component Intended Requiring Management NUREG- Table 1 Type Function Material Environment Management Programs 1801 Item Item Notes Tubing Pressure Copper Air - indoor None None VII.J.AP- 3.3.1- A boundary alloy ext 144 114 Tubing Pressure Copper Condensation Loss of Compressed Air V.D.AP- 3.3.1- D boundary alo int material Monitoring 240 54 Tubing Pressure Copper Lube oil (int) Loss of Oil Analysis VII.H2.AP- 3.3.1- A, 302 boundary allo material 133 99