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MONTHYEARML22308A2392022-11-0808 November 2022 Documentation of Approval for Longer Review Period for Limerick Digital Instrumentation and Control License Amendment Requests Acceptance Review Project stage: Acceptance Review 2022-11-08
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Category:Memoranda
MONTHYEARML22308A2392022-11-0808 November 2022 Documentation of Approval for Longer Review Period for Limerick Digital Instrumentation and Control License Amendment Requests Acceptance Review ML22034A3932022-02-16016 February 2022 Calendar Year 2021 Security Baseline Completion Memo ML21277A2472021-11-0505 November 2021 Notification of Significant Licensing Action - Proposed Issuance of Order Approving the Transfer of Licenses for Which a Hearing Has Been Requested - Exelon Generation Company, LLC; Et. Al ML18138A3442018-05-22022 May 2018 2018 Limerick Summary of Public Meeting and Attendance List ML17142A2382017-05-25025 May 2017 OEDO-17-00280 - Briefing Package for Drop-In Visit on June 9, 2017, by Senior Management of Exelon Generation Company, LLC with Chairman Svinicki, Commissioner Baran, and Commissioner Burns ML17037B8502017-02-0606 February 2017 08/21/1975 Notice of Meeting with Architect Engineers of Mark II Owners to Discuss Load Combinations and Analytical Techniques for Determining Stresses in Mechanical Components and Structures of Mark II Containments ML16344A2192016-12-12012 December 2016 Safety Evaluation for Limerick, Units 1 and 2, Proposed License Amendment to Revise the Technical Specifications to Address the High-Pressure Coolant Injection Operability Requirement Under Low Reactor Pressure Conditions 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 ML16088A2052016-03-28028 March 2016 Enclosure 1 - (72.30 DFP Reviews to Be Completed 2015) - Memo T Bowers from s Ruffin, Technial Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations ML16088A2042016-03-28028 March 2016 Memo T Bowers from s Ruffin, Technical Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations W/ Encl 2 (Template) ML16085A0252016-03-24024 March 2016 Draft Request for Additional Information ML16075A3292016-03-16016 March 2016 OEDO-16-00165 - Briefing Package for Drop-In Visit on March 23, 2016, by Senior Management of Exelon Generation Company, LLC with the NRC Executive Director for Operations ML15202A3782015-07-21021 July 2015 Draft Request for Additional Information ML15028A4502015-01-27027 January 2015 LG-15-014 Verification of Readiness for Supplemental Inspection at Limerick Generating Station ML15035A1122015-01-10010 January 2015 LTR-15-0061 Lewis Cuthbert, President, Alliance for a Clean Environment, ACE, Letter Lessons Learned from Fukushima Related to Limerick Nuclear Plant ML14267A0762014-09-23023 September 2014 Acknowledgement Letter: B. Shank and C. Shank Regarding Limerick Nuclear Power Plant ML14247A6482014-09-10010 September 2014 Supplemental Safety Evaluation Report ML14190A9442014-08-11011 August 2014 Forwarding of Supplement 1 to the Safety Evaluation Report Related to the License Renewal of Limerick Generating Station, Units 1 and 2, Docket Numbers 50-352 and 50-353, to the Advisory Committee on Reactor Safeguards ML14210A5762014-07-29029 July 2014 Draft Request for Additional Information (Tac Nos. MF3198 and MF3199) ML14202A5182014-07-21021 July 2014 Draft Request for Additional Information (Tac Nos. MF3085 and MF3086) ML14055A5322014-03-11011 March 2014 Summary of Telephone Conference Call Held on January 30, 2014. Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC, Concerning Requests for Additional Information Pertaining to the Limerick Generating Station, ML14066A0972014-03-0707 March 2014 Draft Request for Additional Information ML14030A0942014-01-29029 January 2014 Draft Request for Additional Information (TAC Nos. MF1399 and MF1400) ML13309A0802013-12-11011 December 2013 Memorandum to File: Transcript for 10 CFR 2.206 Petition from Beyond Nuclear (Et Al) Regarding General Electric Mark I and Mark II Boiling-Water Reactors ML13190A3522013-07-10010 July 2013 Notice of Forthcoming Teleconference with Exelon Generation Company, LLC ML13156A0902013-06-26026 June 2013 Dseis Meeting Summary ML13109A5392013-05-0303 May 2013 5/23/2013 - Meeting Notice: Forthcoming Meeting to Discuss the Draft Supplemental Environmental Impact Statement for the License Renewal of Limerick Generating Station, Units 1 and 2 ML12348A6962012-12-17017 December 2012 1/3/2013 - Notice of Forthcoming Meeting with Exelon Generation Company, LLC, to Discuss Requests for Additional Information Regarding Exelon Physical Security Plans ML1227704332012-10-0101 October 2012 Minutes of the ACRS Plant License Renewal Subcommittee Meeting on September 5, 2012 (Open) ML12139A0612012-06-25025 June 2012 Summary of Telephone Conference Call Held on May 16, 2012, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC, Concerning Requests for Additional Information Pertaining to the Limerick Generating Station, Lice ML1210403072012-04-12012 April 2012 Draft Request for Additional Information ML12083A2112012-04-11011 April 2012 Summary of Telephone Conference Call Held on February 23, 2012 Between the U.S. Nuclear Regulatory Commission and Exelon Generating Company, LLC, Concerning Request for Additional Information Pertaining to the Limerickgenerating Station, Li ML1208602902012-03-26026 March 2012 Notice of Forthcoming Public Meeting with Exelon Generation to Discuss Future Fleet Submittal Regarding Licensed Operator Eligibility Requirements ML1135300442011-12-19019 December 2011 Electronic Transmission, Draft Request for Additional Information Regarding Proposed Technical Specification Safety Limit Minimum Critical Power Ratio Changes ML1133402312011-12-12012 December 2011 Request for Additional Information for Limerick Generating Station, Units 1 and 2 License Renewal Application-Scoping and Screening (TAC Nos. ME6555 and ME6556) ML11272A2372011-10-26026 October 2011 Summary of Public Scoping Meetings Related to the Review of the Limerick Generating Station, Units 1 and 2, LRA ML11251A0672011-09-12012 September 2011 Forthcoming Meeting to Discuss the License Renewal Process and Environmental Scoping for Limerick Generating Station, Units 1 and 2, License Renewal Application ML11245A0082011-09-0606 September 2011 09/22/2011 Notice of Forthcoming Meeting to Discuss the License Renewal Process and Environmental Scoping for Limerick Generating Station, Units 1 and 2, License Renewal Application ML1124104422011-08-29029 August 2011 Corrected Transcript for 10 CFR 2.206 Petition Regarding Limerick Scrams - Second Teleconference with Petitioner ML1121606122011-08-0808 August 2011 Memorandum to File: Transcript for 10 CFR 2.206 Petition Regarding Limerick Scrams - Second Teleconference with Petitioner ML1117803082011-06-28028 June 2011 Memo to File Documenting Transcript for 10 CFR 2.206 Petition Regarding Limerick Scrams - Initial Teleconference with Petitioner ML1114403042011-05-24024 May 2011 Summary of Annual Assessment Meeting, Limerick Generating Station, on May 18, 2011 ML1103800542011-03-18018 March 2011 Summary of Telephone Conference Call Held on 1/28/11, Between the USNRC and Exelon Generation Company, LLC, Concerning the Proposed Limerick Generating Station, Units 1 and 2, License Renewal Application ML1105502222011-02-24024 February 2011 Electronic Transmission, Draft Request for Additional Information Regarding Proposed Technical Specification Allowed Outage Time Extensions to Support Residual Heat Removal Service Water (RHRSW) Maintenance ML1103304292011-02-0303 February 2011 Electronic Transmission, Draft Request for Additional Information Regarding Proposed Technical Specification Safety Limit Minimum Critical Power Ratio Changes ML1032004852010-11-16016 November 2010 Electronic Transmission, Draft Request for Additional Information Proposed Technical Specification Changes to High Pressure Coolant Injection Equipment Room Delta Temperature Trip Setpoint ML1032105082010-11-16016 November 2010 Units 1 & 2 - Electronic Transmission, Draft Request for Additional Information Regarding Request to Implement Emergency Action Level Scheme Change to NEI 99-01, Revision 5 2022-02-16
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November 8, 2022
MEMORANDUM TO: File
FROM: Michael L. Marshall, Jr, Senior Project Manager /RA/
Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
DOCUMENTATION OF APPROVAL FOR LONGER REVIEW PERIOD FOR LIMERICK DIGITAL INSTRUMENTATION AND CONTROL LICENSE AMENDMENT REQUESTS ACCEPTANCE REVIEW (EPID L-2022-LRM-0140)
By letter dated September 26, 2022, Constellation Energy Generation, LLC submitted license amendment requests for Limerick Generation St ation, 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
CONTACT: Michael L. Marshall, Jr 301-415-2871
The purpose of this memorandum is to document approval of a longer acceptance review period for the Limerick digital instrumentation and controls license amendment requests. The basis for the request for a longer acceptance review period included:
the changes in the license amendment reques t are complex (including first-of-a-kind aspects)
the license amendment request is the second large analog to digital upgrade submitted last quarter under the alternate review process described in Digital I&C Interim Staff Guidance 06, Revision 2, Licensing Process
a public meeting with the licensee will be necessary prior to completing the acceptance review to ensure correct assessment of the completeness of information included in the requests
additional communications with internal stakeholders will be needed prior to providing acceptance decision and opportunity to supplement letter to licensee, because of the heighten internal and external interest in this review
the license amendment request is voluminous (i.e., 2,904 pages)
The normal acceptance review period for a requested licensing action (including, license amendment request) is 25 working days or 53 wo rking days with an opportunity to supplement the requested licensing action. According to Office Instruction LIC-109, Revision 3, Acceptance Review Procedures for Licensing Basis Changes, both the project and technical division management need to approve longer acceptance review periods. On November 3, 2022, by email, Jamie Heisserer, the Deputy Director of the Division of Operating Reactor Licensing, approved a review period of 60 calendar days (or 75 calendar days with an opportunity to supplement) for the Limerick digital I&C license amendment requests. Prior to the submittal of the request during preplanning discussions for the review of the amendment request and discussions concerning critical digital I&C milestones, Eric Benner, the Director of the Division of Engineering and External Hazards, approved a review period of 60 calendar days.
Docket Nos. 50-352 and 50-353
ML22308A239 OFFICE NRR/DORL/LPL1/PM NRR/DORL/LPL1/LA NRR/DORL/LPL1/BC NAME MMarshall KZeleznock HGonzález DATE 11/04/2022 11/08/2022 11/08/2022