Letter Sequence Acceptance Review |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance, Acceptance, Acceptance, Acceptance
- Supplement, Supplement, Supplement, Supplement
Administration
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
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MONTHYEARML22010A0692022-01-10010 January 2022 Jan 11 2022 LGS Digital Modernization Pre-submittal Meeting Slides Project stage: Request ML22046A0742022-02-14014 February 2022 Review of Limerick Generating Station Defense in Depth and Diversity Common Cause Failure Coping Analysis, WNA-AR-01074-GLIM-P, Rev 1. Without Attachment 3 Enclosure Project stage: Request PMNS20220271, Meeting with Constellation Energy Generation, LLC Regarding Defense-in-Depth and Diversity Common Cause Failure Coping Analysis Request for Limerick Generating Station, Units 1 and 22022-03-17017 March 2022 Meeting with Constellation Energy Generation, LLC Regarding Defense-in-Depth and Diversity Common Cause Failure Coping Analysis Request for Limerick Generating Station, Units 1 and 2 Project stage: Request ML22084A1142022-03-25025 March 2022 Supplement to Review of Limerick Generating Station Defense in Depth and Diversity Common Cause Failure Coping Analysis, WNA-AR-01074-GLIM-P, Rev 1, February 2022 Project stage: Request PMNS20220709, Meeting Between NRC Staff and Constellation Energy Generation, LLC on the Review of the Defense-in-Depth and Diversity Coping Analysis Supporting the Digital Upgrade of Instrumentation and Controls at Limerick Generating Station, Units2022-07-22022 July 2022 Meeting Between NRC Staff and Constellation Energy Generation, LLC on the Review of the Defense-in-Depth and Diversity Coping Analysis Supporting the Digital Upgrade of Instrumentation and Controls at Limerick Generating Station, Units 1 an Project stage: Request ML22224A1492022-08-15015 August 2022 Review of Limerick Generating Station Defense in Depth and Diversity Common Cause Failure Coping Analysis, WNA-AR-01074-GLIM-P, Revision 2, July 2022, and the Licensing Technical Report for the Limerick Generating Station Units 1&2 Digital Project stage: Request PMNS20221157, Meeting Between NRC and Constellation Energy Generation, LLC Regarding Ongoing Acceptance Review of Limerick Generating Station, Units 1 and 2 Digital Instrumentation and Controls License Amendment Request2022-11-0707 November 2022 Meeting Between NRC and Constellation Energy Generation, LLC Regarding Ongoing Acceptance Review of Limerick Generating Station, Units 1 and 2 Digital Instrumentation and Controls License Amendment Request Project stage: Acceptance Review ML23009A5622022-11-0707 November 2022, 14 November 2022, 11 January 2023 Summary of December 15, 2022 Public Meeting on Limeric Digital I&C LAR Acceptance Project stage: Request ML22312A4402022-11-10010 November 2022 Public Meeting with Constellation About Acceptance Review: Status of NRC Staff'S Acceptance Review of the Limerick Digital Instrumentation and Controls License Amendment Request Project stage: Acceptance Review ML22319A0012022-11-14014 November 2022 Constellation Energy Generation, Llc'S Presentation for November 10, 2022 Public Meeting with NRC Project stage: Request ML22320A1132022-11-21021 November 2022 Generation Station, Units 1 and 2 - Supplemental Information Needed for Acceptance of Digital Instrumentation and Controls License Amendment Requests Project stage: Acceptance Review ML22333A8172022-11-29029 November 2022 Response to Supplemental Information Needed for Acceptance of Digital Instrumentation and Controls License Amendment Requests for the Limerick Generating Station Project stage: Supplement ML22327A0192022-12-0606 December 2022 Summary of November 10, 2022, Meeting with Constellation Energy Generation, Lic on Acceptance Review of Limerick Digital Instrumentation and Controls License Amendment Requests Project stage: Acceptance Review ML22339A0642022-12-0909 December 2022 Generation Station, Unit Nos. 1 and 2 Acceptance of Requested Licensing Action Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System Project stage: Acceptance Review ML22347A1532022-12-13013 December 2022 Public Meeting Presentation, December 15, 2022 Di&C License Amendment Request Project stage: Meeting ML23003A1702022-12-15015 December 2022 Official Transcript of the 12/15/22 Meeting with Constellation Energy to Discuss the Exceptions Described for the Independence and Operating Bypass with IEEE 603 of the Proposed Plant Protection System in the Limerick Station, Units 1 and 2 Project stage: Meeting ML23009A5872023-01-11011 January 2023 Summary of December 15, 2022, Meeting with Constellation Energy Generation, LLC on Potential Compliance with Certain Clauses of IEEE Standard 603-1991 in Limerick Digital Instrumentation and Controls License Amendment Requests Project stage: Meeting ML22353A6322023-01-17017 January 2023 Supplement to Regulatory Audit Plan in Support of Review of Digital I&C Upgrade to Protection Systems (EPID L-2022-LLA-0140) - Non-Proprietary Project stage: Other PMNS20230026, Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-01-20020 January 2023 Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23076A1062023-01-20020 January 2023, 12 May 2023 Summary of Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Request ML23032A2442023-02-0606 February 2023 Regulatory Audit Plan for Review of Human Factors Engineering Portion of Limerick Digital Instrumentation and Controls License Amendment Request Project stage: Other ML23046A2662023-02-15015 February 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System Project stage: Supplement PMNS20230032, Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-02-23023 February 2023 Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23121A0042023-03-0606 March 2023, 12 May 2023 Summary of March 29, 2023, Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Request PMNS20230033, Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-03-0606 March 2023 Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting PMNS20230254, Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-03-17017 March 2023 Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23118A3792023-03-17017 March 2023, 9 June 2023 April 12, 2023, Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Request ML23095A2232023-04-0505 April 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS)- Human Factors Project stage: Supplement PMNS20230423, Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-04-17017 April 2023 Meeting with Constellation Energy Generation, LLC Regarding Planned Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23132A3092023-04-17017 April 2023, 18 May 2023 Summary of May 3, 2023, Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Request ML23121A0022023-05-12012 May 2023 Summary of March 29, 2023, Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23076A1042023-05-12012 May 2023 Summary of Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23076A0132023-05-12012 May 2023 March 15, 2023, Summary of Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting PMNS20230627, Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-05-15015 May 2023 Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23156A4172023-05-16016 May 2023, 9 June 2023 Summary of May 24, 2023, Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Request PMNS20230606, Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 22023-05-16016 May 2023 Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23132A3082023-05-18018 May 2023 Summary of May 3, 2023, Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23145A0352023-05-31031 May 2023 Summary of May 17, 2023, Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23156A2472023-06-0909 June 2023 Summary of Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23118A3752023-06-0909 June 2023 Summary of Audit Meeting with Constellation Energy Generation Concerning a Digital Instrumentation and Control Upgrade License Amendment Request for Limerick Generating Station, Units 1 and 2 Project stage: Meeting ML23177A2242023-06-26026 June 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection . Project stage: Supplement ML23187A0962023-07-19019 July 2023 Generation Station, Unit Nos. 1 and 2 - Revised Estimated Review Completion Date Concerning License Amendment Request to Replace Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System Project stage: Other ML23236A5132023-08-31031 August 2023 Summary of Meeting with Constellation Energy Generation, LLC Regarding Digital Modernization License Amendment Request Project stage: Meeting ML23241A9452023-09-27027 September 2023 Generation Station, Units 1 and 2 Regulatory Audit Plan Supporting Review of the Equipment Qualification Portion of Limerick Digital Instrumentation and Controls License Amendment Request Project stage: Other ML24026A2922024-01-26026 January 2024 Request for Additional Information Regarding Limerick Digital Instrumentation and Controls License Amendment Request Project stage: RAI 2023-01-20
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Category:Acceptance Review Letter
MONTHYEARML23086A0822023-03-27027 March 2023 Acceptance of Requested Licensing Action for Exemption Request to Support Digital Modernization Project Installation ML22339A0642022-12-0909 December 2022 Generation Station, Unit Nos. 1 and 2 Acceptance of Requested Licensing Action Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System ML22320A1132022-11-21021 November 2022 Generation Station, Units 1 and 2 - Supplemental Information Needed for Acceptance of Digital Instrumentation and Controls License Amendment Requests ML22112A2152022-03-28028 March 2022 Limerick_Acceptance Review TS Change to Correct Nonconservative Technical Specification Table 3.3.3-1 ML21140A0842021-05-19019 May 2021 Acceptance of Requested Licensing Action Revision to Appendix C License Conditions in Accordance with the Requirements of 10 CFR 50.69 (E-mail) ML21111A0312021-04-20020 April 2021 Application to Modify 50.69 Categorization to Implement an Alternate Defense-in-Depth Categorization Process, an Alternate Pressure Boundary Categorization Process, and an Alternate Seismic Tier 1 Categorization Process ML21077A1772021-04-0808 April 2021 Withdrawal of Requested Exemption from Certain Requirement in 10 CFR 50.55a (Epids L-2021-LLE-0014, 0015, & 0016) ML20304A1432020-10-30030 October 2020 Acceptance Review: Relocation of Pressure and Temperature Limit Report ML20273A1582020-09-29029 September 2020 Acceptance Review: to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements ML20268B2362020-09-24024 September 2020 Acceptance Review: Relief Requesting Residual Heat Removal Heat Exchanger Category C-A and C-B Examinations ML20092G8352020-04-0101 April 2020 Acceptance Review - TS Change 3.10.8, Inservice Leak - TSTF-484 ML20091N0492020-03-27027 March 2020 Acceptance Review: TS Change for Testing of the SRVs to Retain the Frequency and Associated Relief Requests in the IST Program (EPIDs L-2020-LLA-0052 and L-2020-LLA-0043) ML19357A0892019-12-23023 December 2019 Acceptance Review: Technical Specification 40.5 Requirements to Reflect the Allowance Provided in 10 CFR 50.69(b)(1)(v) to Perform Alternative Treatement of SSC J(Epid: L-209-LLA-263) ML19248B7322019-09-0505 September 2019 Letter to R. Libra Alternative Request Pertaining to Dry Shielded Canisters Equipped with Boral Neutron Absorber Plates - Accepted for Review ML19239A1552019-08-26026 August 2019 Acceptance Review for Limerick - Relocation of Chlorine and Toxic Gas Detection System TSs License Amendment Request ML19030A1472019-01-30030 January 2019 Supplemental Information Needed for Acceptance of Requested Licensing Action to Adopt Risk-Informed Completion Times in Accordance with TSTF-505, Revision 2 ML18295A5312018-10-22022 October 2018 Acceptance Review: Relief Request I4R-08, Revision 1 for the Fourth Inservice Inspection Interval of Limerick Generating Station (LGS) Units 1 and 2 ML18052B0762018-02-21021 February 2018 Acceptance Review: Revise Technical Specifications to Lower the Minimum Standby Liquid Control System Pump Flowrate ML17234A5282017-08-25025 August 2017 Acceptance of Requested Licensing Action Adoption of Title 10 of the Code of Federal Regulations Section 50.69 ML17137A1542017-05-16016 May 2017 Acceptance Review for Relief Request Associated with Reactor Pressure Vessel Nozzle Repairs ML17009A3792017-01-0909 January 2017 Acceptance of Requested Licensing Action Regarding Amendment-Partial Length Fuel Rod Burn-up ML17009A2932017-01-0909 January 2017 Acceptance of Requested Licensing Action Regarding Amendment-Partial Length Fuel Rod Burn-up ML17003A3292017-01-0303 January 2017 Acceptance Review - Limerick Unit 2 - Safety Limit Minimum Critical Power Ratios ML16319A1262016-11-14014 November 2016 Acceptance Review - Limerick 1 and 2 - Relief Request GVRR-8 ML16237A0362016-08-24024 August 2016 Acceptance Review: Limerick 1 & 2 - TS ISI and IST Program Requirements (CACs MF8193 and MF8194) ML16055A3692016-02-24024 February 2016 Acceptance Review: Limerick 1 & 2 - Reduce Steam Dome Pressure Amendment Request (CACs MF7263 and MF7264) ML15341A0232015-12-0707 December 2015 Acceptance Review for CAC MF7101 - Limerick Unit 1 - Safety Limit Minimum Critical Power Ratio ML15120A0812015-04-30030 April 2015 Acceptance Review for TACs MF6094 & MF6095 - Limerick Units 1 and 2 - Submittal of Relief Request to Use Code Case OMN-18 ML14329B2982014-11-25025 November 2014 Email- Acceptance Review for TACs MF5133 & MF5134 - Limerick Units 1 and 2 - Add New LCOs 3.0.5 and 3.0.6 ML14212A3802014-07-31031 July 2014 Acceptance Review for TACs MF4412 & MF4413 - Limerick Units 1 and 2 - TSTF-523, Generic Letter 2008-01 - Managing Gas Accumulation ML13101A0482013-04-11011 April 2013 Acceptance Review for TACs ME1399 & ME1400 - Limerick Units 1 and 2 - Eliminate Certain TS Reporting Requirements ML12331A0382012-11-26026 November 2012 Acceptance Review for License Amendment Request to Relocate MOV TOL Protection to TRM ML1119403082011-07-13013 July 2011 Acceptance Review of License Amendment Request to Include an Alternate Method of Verifying Drywell Leakage - TAC Nos ME6521 & ME6522 ML1116804112011-06-17017 June 2011 Acceptance Review for Exelon Threshold Determination Request (TAC ME6269 - ME6287) ML1113101262011-05-11011 May 2011 Acceptance Review of Limerick License Amendment Request Regarding TSTF-514, RCS Leakage Detection Instrumentation, TAC Nos. ME5993 & ME5994 ML1021502822010-08-0303 August 2010 Acceptance Review of Limerick LAR Regarding HPCI Dt Isolation Setpoint Change - TACs ME4171/ME4172 ML1008800852010-07-21021 July 2010 Fleet - Acceptance Review Implementation of Emergency Action Level Schemes Developed from NEI 99-01m Rev. 5 ML1005400432010-02-22022 February 2010 Acceptance Review of Limerick Relief Request I3R-13, Pressure Testing of Primary Containment Gas Piping ML0924700432009-09-0303 September 2009 3 Acceptance Review Results Request to Use Specific Provisions from a Later Edition of the ASME Boiler and Pressure Vessel Code 2023-03-27
[Table view] Category:Letter
MONTHYEARIR 05000352/20243012024-02-0202 February 2024 Initial Operator Licensing Examination Report 05000352/2024301 and 05000353/2024301 IR 05000352/20230042024-01-31031 January 2024 Integrated Inspection Report 05000352/2023004 and 05000353/2023004 IR 05000352/20240112024-01-31031 January 2024 Information Request to Support Post-Approval Site Inspection for License Renewal; Inspection Report 05000352/2024011 ML24026A2962024-01-26026 January 2024 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS)- Syrs, . ML24004A0342024-01-17017 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0026 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) IR 05000352/20230102024-01-11011 January 2024 Age-Related Degradation Report 05000352/2023010 and 05000353/2023010 IR 05000352/20234012023-12-21021 December 2023 Cybersecurity Inspection Report 05000352/2023401 and 05000353/2023401 ML23321A2362023-12-14014 December 2023 Issuance of Amendment Nos. 262 and 224 Adoption of TSTF-477, Revision 3 and Associated Technical Specification Changes ML23278A1292023-12-14014 December 2023 Units 1 & 2; Limerick, Units 1 & 2; Nine Mile Point, Units 1 & 2; and Peach Bottom, Units 2 & 3 -Revision to Approved Alternatives to Use Boiling Water Reactor Vessel and Internals Project Guidelines ML23333A2182023-11-29029 November 2023 Operator Licensing Examination Approval ML23325A2062023-11-21021 November 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System ML23313A0432023-11-13013 November 2023 Summary of Regulatory Audit in Support of Amendment Request for Control Room Air Conditioning Technical Specifications ML23317A1192023-11-10010 November 2023 Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums IR 05000352/20230032023-10-27027 October 2023 Integrated Inspection Report 05000352/2023003 and 05000353/2023003 and Independent Spent Fuel Storage Installation Inspection 07200065/2023001 ML23297A1722023-10-24024 October 2023 Request for Information for a Biennial Problem Identification and Resolution Inspection; Inspection Report 05000352/2024010 and 05000353/2024010 IR 05000352/20235012023-10-17017 October 2023 Emergency Preparedness Biennial Exercise Inspection Report 05000352/2023501 and 05000353/2023501 RS-23-097, Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans2023-10-12012 October 2023 Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans ML23279A0612023-10-0505 October 2023 Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23276A5162023-10-0303 October 2023 Federal Emergency Management Agency Level 1 Finding from 2023 Evaluated Emergency Preparedness Exercise ML23275A1082023-09-29029 September 2023 FEMA Level 1 Findings Limerick NPP- Boyertown/Colebrookdale ML23241A9452023-09-27027 September 2023 Generation Station, Units 1 and 2 Regulatory Audit Plan Supporting Review of the Equipment Qualification Portion of Limerick Digital Instrumentation and Controls License Amendment Request ML23269A0522023-09-26026 September 2023 Request for Information and Notification of Conduct of IP 71111.21.N.04, Age-Related Degradation, Reference Inspection Report 05000352/2023010 and 05000353/2023010 ML23255A0952023-09-12012 September 2023 Resubmittal of License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS) to Address ML23254A0242023-09-0606 September 2023 Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23249A1002023-09-0606 September 2023 Requalification Program Inspection IR 05000352/20230052023-08-31031 August 2023 Updated Inspection Plan for Limerick Generating Station, Units 1 and 2 (Report 05000352/2023005 and 05000353/2023005) ML23248A2082023-08-31031 August 2023 UFSAR Cover Page ML23242A2172023-08-30030 August 2023 Response to Request for Additional Information for Application to Adopt TSTF-477, Revision 3, Add Action for Two Inoperable Control Room AC Subsystems and Associated Technical Specification Changes NMP2L2851, Relief Request Associated with Successive Inspections for Generic Letter 88-01 / BWRVIP-75-A Augmented Examinations2023-08-25025 August 2023 Relief Request Associated with Successive Inspections for Generic Letter 88-01 / BWRVIP-75-A Augmented Examinations ML23228A0942023-08-16016 August 2023 Response to Request for Additional Information for Supplemental License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the . IR 05000352/20230022023-08-14014 August 2023 Integrated Inspection Report 05000352/2023002 and 05000353/2023002 ML23220A0182023-08-0808 August 2023 Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000352/2023401 and 05000353/2023401 RS-23-087, Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor2023-08-0404 August 2023 Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor ML23212B2362023-07-31031 July 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System - WEC Documents ML23212B1052023-07-31031 July 2023 Supplement to License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the Digital Modernization Project Installation - Revise ML23202A2192023-07-21021 July 2023 Response to Request for Additional Information for Supplemental License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the . ML23193B0122023-07-20020 July 2023 Audit Plan in Support of Review of License Amendment Request and Exemption Request for Digital Instrumentation and Controls Installation Support (Epids L-2023-LLA-0025 and L-2023-LLE-0005) ML23187A0962023-07-19019 July 2023 Generation Station, Unit Nos. 1 and 2 - Revised Estimated Review Completion Date Concerning License Amendment Request to Replace Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System ML23208A1522023-07-0606 July 2023 PEMA Letter Dated 7-6-23 Re Limerick Exercise 9-26-23 ML23177A2242023-06-26026 June 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection . ML23145A1972023-06-23023 June 2023 Correction to the Renewed Facility Operating License Pages in Amendment Nos. 255, 256, 257, 258, 259, and 260 2024-02-02
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML23276B4642023-10-0303 October 2023 NRR E-mail Capture - NRC Request for Additional Information Limerick TSTF-477 LAR ML23269A0522023-09-26026 September 2023 Request for Information and Notification of Conduct of IP 71111.21.N.04, Age-Related Degradation, Reference Inspection Report 05000352/2023010 and 05000353/2023010 ML23208A1942023-07-27027 July 2023 NRR E-mail Capture - Limerick Generating Station - Audit Plan for TSTF-477 LAR Review (L-2022-LLA-0174) ML23202A0682023-07-21021 July 2023 NRR E-mail Capture - NRC Request for Additional Information Re. TSTF-477 LAR ML23201A1262023-07-18018 July 2023 Additional RAIs for Limerick Generation Station, Units 1 and 2 - LAR and Exemption Request for Digital I&C Installation Support ML23173A0632023-06-20020 June 2023 RAIs for Limerick Generation Station, Units 1 and 2 - LAR and Exemption Request for Digital I&C Installation Support ML22320A1132022-11-21021 November 2022 Generation Station, Units 1 and 2 - Supplemental Information Needed for Acceptance of Digital Instrumentation and Controls License Amendment Requests ML22172A0752022-06-17017 June 2022 Response: Review and Feedback on Draft Limerick Digital License Amendment Request (L-2020-LRM-0041) ML22136A0032022-05-13013 May 2022 NRR E-mail Capture - NRC Request for Additional Information - Limerick License Amendment Request (L-2021-LLA-0042) ML22124A2862022-05-0404 May 2022 Information Needed to Provide Substantive Feedback on Human Factors Engineering Supporting the Planned Limerick Digital I&C License Amendment Request ML22103A2542022-04-19019 April 2022 Draft Request for Additional Information ML22089A1172022-03-30030 March 2022 Additional Comments and Questions on Constellation'S March 31st Presentation ML22045A4822022-02-14014 February 2022 Notification of Conduct of a Fire Protection Team Inspection ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21117A0342021-05-0505 May 2021 Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893 ML21062A0652021-03-0101 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21049A2572021-02-18018 February 2021 Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237) ML21048A3402021-02-11011 February 2021 Request for Information for Relief Request I4R-24 Associated with Residual Heat Removal Heat Exchanger Category C-A and C-B Examinations ML21015A1852021-01-15015 January 2021 Temporary Instruction 2515/194 Inspection Documentation Request ML20239A7982020-08-25025 August 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet License Amendment Request to Adopt TSTF-568, Revision 2 ML20156A2992020-06-0404 June 2020 RAI for RR to Use Inservice Testing Program Safety Relief Valve Testing ML20153A7042020-06-0101 June 2020 NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26 ML20149K7012020-05-28028 May 2020 Request for Additional Information for License Amendment Request to Use Inservice Testing Program Safety Relief Valve Testing ML20098C4342020-04-0606 April 2020 Draft Request for Additional Information - Limerick Generating Station, Unit 1 - Emergency LAR to Increase Allowable MSIV Leakage ML19344A0332019-12-10010 December 2019 Request for Additional Information License Amendment Request to Adopt TSTF-505, Revision 2 Risk Informed Completion Times Exelon Generation Company Limerick Generating Station, Units 1 and 2 Docket Nos. 50-352 and 50-353 ML19344A0242019-12-0909 December 2019 Request for Additional Information (RAI) - Limerick Units 1 and 2: TSTF-505, Use of Risk Informed Completion Times (Ricts) for Actions to Be Taken When Limiting Conditions for Operation (Lcos) Are Not Met ML19275H1362019-10-0202 October 2019 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879 ML19179A0612019-07-19019 July 2019 Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879 ML19192A0312019-07-10010 July 2019 NRR E-mail Capture - LIMERICK-REQUEST for Additional Information: Risk Informed Completion Times TSTF-505, Revison 2, Provide RISK-INFORMED Completion Times - RITSTF Initiative 4B ML19168A0882019-06-17017 June 2019 Letter to R. W. Libra Alternative Request Pertaining to Dry Shielded Canisters Equipped with Boral Neutron Absorber Plates - Supplemental Information Needed (W/Enclosursi) ML18276A0202018-10-0202 October 2018 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Amendment Request to Revise Emergency Plan for Limerick and Peach Bottom ML18081B0682018-03-26026 March 2018 Second Round RAI for Limerick, 10 CFR 50.69 ML18067A1482018-03-0808 March 2018 Enclosurequest for Additional Information (Letter to P. R. Simpson Request for Additional Information Regarding Exelon Generating Company, Llc'S Decommissioning Funding Plan Update for Independent Spent Fuel Storage Installation) ML17354A0182017-12-19019 December 2017 E-mail Request for Information (Rai): Relief Request I3R-23 Regarding Limited Examination Coverage ML18040A9212017-11-0707 November 2017 Attachment - Limerick Generating Station, Units 1 and 2, Request for Additional Information Application to Revise TSs to Adopt TSTF-542, Revision 2 ML17207A0772017-07-31031 July 2017 Supplemental Information Needed for Acceptance of Requested Licensing Action Adoption of Title 10 of the Code of Federal Regulations Section 50.69 ML17137A1652017-05-16016 May 2017 Request for Additional Information for Relief Request Associated with Reactor Pressure Vessel Nozzle Repairs ML17062A4912017-03-0303 March 2017 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Fleet Alternative to RPV Threads in Flange Examination (CAC Nos. MF8712-MF8729) ML17018A1932016-12-0909 December 2016 NRR E-mail Capture - (External_Sender) Limerick Flood MSA Question ML16221A6712016-08-0808 August 2016 Draft Request for Additional Information ML16221A6122016-08-0808 August 2016 Draft Request for Additional Information ML16174A2982016-06-22022 June 2016 Draft Request for Additional Information ML16166A0862016-06-14014 June 2016 Draft Request for Additional Information ML16085A0252016-03-24024 March 2016 Draft Request for Additional Information ML15202A3782015-07-21021 July 2015 Draft Request for Additional Information ML14324A8102014-11-18018 November 2014 Emails from ACE and NRC Response Re Limerick Higher Radiation Readings on Nov 18, 2014 ML14210A5762014-07-29029 July 2014 Draft Request for Additional Information (Tac Nos. MF3198 and MF3199) 2023-09-26
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November 21, 2022 Mr. David P. Rhoades Senior Vice President Constellation Energy Generation, LLC President and Chief Nuclear Officer Constellation Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
LIMERICK GENERATION STATION, UNITS 1 AND 2 - SUPPLEMENTAL INFORMATION NEEDED FOR ACCEPTANCE OF DIGITAL INSTRUMENTATION AND CONTROLS LICENSE AMENDMENT REQUESTS (EPID L-2022-LLA-0140)
Dear Mr. Rhoades:
By letter dated September 26, 2022 (Agencywide Documents Access and Management System (ADAMS) No. ML22269A569), as supplemented by letter dated August 12, 2022 (ML22224A149), Constellation Energy Generation, LLC (Constellation) submitted license amendment requests for Limerick Generation Station, Units 1 and 2 (Limerick). The proposed amendment requests would change both the design and technical specifications to permit the use of a new single digital instrumentation and controls system to replace analog instrumentation of reactor protection system, analog nuclear steam supply shutoff system, emergency core cooling system, reactor core isolation cooling system, and end-of-cycle recirculation pump trip at Limerick. In addition, the proposed amendments would:
change the classification of the redundant reactivity control system from safety-related to non-safety-related eliminate the automatic redundant reactivity control system feedwater runback function eliminate the automatic isolation function for the turbine enclosure main steam line tunnel temperature high indication eliminate several surveillance requirements allow the use of automated operator aids (or automated controls) from main control room The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of these amendment requests. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to
P. Rhoades identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.
Consistent with Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR), an application for an amendment to a license (including the technical specifications) must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications. Section 50.34 10 CFR addresses the content of technical information required. This section stipulates that the submittal address the design and operating characteristics, unusual or novel design features, and principal safety considerations.
The NRC staff has reviewed your application and concluded that the information delineated in the enclosure to this letter is necessary to enable the staff to make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements for the protection of public health and safety and the environment.
To make the application complete, the NRC staff requests that Constellation supplement the application to address the information requested in the enclosure within 13 calendar days of the date of this letter. This will enable the NRC staff to begin its detailed technical review. If the information responsive to the NRC staffs request is not received by the above date, the application will not be accepted for review pursuant to 10 CFR 2.101, and the NRC will cease its activities associated with the application. If the application is subsequently accepted for review, you will be advised of any further information needed to support the staffs detailed technical review by separate correspondence.
If you have any questions, please contact me at (301) 415-2871 or michael.marshall@nrc.gov or Mr. Bhagwat BP Jain at (301) 415-6303 or bhagwat.jain@nrc.gov.
Sincerely,
/RA/
Michael L. Marshall, Jr, Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353
Enclosure:
Supplemental Information Needed cc: Listserv
SUPPLEMENTAL INFORMATION NEEDED AMENDMENT REQUEST INVOLVING DIGITAL INSTRUMENTATION AND CONTROLS CONSTELLATION ENERGY GENERATION, LLC LIMERICK GENERATION STATION, UNIT NOS 1 AND 2 DOCKET NOS. 50-352 AND 50-353 By letter dated September 26, 2022(Agencywide Documents Access and Management System (ADAMS) No. ML22269A569), as supplemented by letter dated August 12, 2022 (ML22224A149), Constellation Energy Generation, LLC (Constellation) submitted license amendment requests for Limerick Generation Station, Units 1 and 2 (Limerick). The proposed amendment requests would change both the design and technical specifications to permit the use of a new single digital instrumentation and controls system to replace analog instrumentation of reactor protection system, analog nuclear steam supply shutoff system, emergency core cooling system, reactor core isolation cooling system, and end-of-cycle recirculation pump trip at Limerick. In addition, the proposed amendments would change the classification of the redundant reactivity control system from safety-related to non-safety-related, eliminate the automatic redundant reactivity control system feedwater runback function, eliminate the automatic isolation function for the turbine enclosure main steam line tunnel temperature high indication, eliminate several surveillance requirements, and allow the use of automated operator aids (or automated controls) from main control room.
In the defense-in-depth and diversity analysis and licensing technical report attached to the supplement dated August 12, 2022, Constellation describes how the component interface module (CIM) is used in the plant protection system planned for Limerick. Descriptions of CIM diversity, priority logic, component control logic, diagnostics, extensive testing, and priority module function are provided. With regards to the CIM internal design (or technical description) references are provided to WCAP-17179-P, Revision 2, AP1000 Component Interface Module Technical Report, and WCAP-17179-P, Revision 6. On November 10, 2022, a public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and Constellation representatives regarding the status of the NRC staffs acceptance review. During the meeting, Constellation explained the use of the CIM for the priority module function in the proposed plant protection system. Also, Constellation described the difference between the CIM description in the WCAP-17179-P, Revision 2, and WCAP-17179-P, Revision 6.
The NRC staff has reviewed the application and considered the statements made by Constellation at the public meeting. The NRC staff has concluded that information about the CIM design is necessary for the staff to make an independent assessment regarding the acceptability of the license amendment requests. To support the acceptance review, the NRC staff requests that Constellation provide a technical description of the CIM design for the priority functions being used in the proposed plant protection system. Further, the description should address the conformance of the CIM design to the command prioritization positions described in Digital Interim Staff Guidance 04, Revision 1, Highly-Integrated Control Rooms -
Communications Issues (HICRc), specific to the Limerick proposed plant protection system design.
Enclosure
ML22320A113 OFFICE NRR/DORL/LPL1PM NRR/DORL/LPL1/LA NRR/DEX/EICB/BC NAME MMarshall KZeleznock MWaters DATE 11/16/2022 11/17/2022 11/17/2022 OFFICE NRR/DORL/LPL1/BC NRR/DORL/LPL1/PM NAME HGonzález MMarshall DATE 11/17/2022 11/21/2022