Letter Sequence RAI |
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TAC:ME9764, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
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MONTHYEARGNRO-2012/00096, License Amendment Request for Implementing a 24-Month Fuel Cycle, Grand Gulf Nuclear Station, Unit 12012-10-0202 October 2012 License Amendment Request for Implementing a 24-Month Fuel Cycle, Grand Gulf Nuclear Station, Unit 1 Project stage: Request ML12289A1582012-10-15015 October 2012 Acceptance Review Email, License Amendment Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04 Project stage: Acceptance Review ML13077A3662013-03-18018 March 2013 Email, Request for Additional Information, License Amendment Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04 Project stage: RAI GNRO-2013/00023, Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle2013-04-26026 April 2013 Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle Project stage: Supplement ML13121A3912013-05-0101 May 2013 Email, Request for Additional Information, Round 2, Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04 Project stage: RAI GNRO-2013/00038, Response to Request for Additional Information Regarding 18 to 24 Month License Amendment Request (TAC ME9764) Dated May 1, 20132013-06-0404 June 2013 Response to Request for Additional Information Regarding 18 to 24 Month License Amendment Request (TAC ME9764) Dated May 1, 2013 Project stage: Response to RAI ML13171A2252013-06-20020 June 2013 Email, Audit Plan for 6/24/13 Audit for Review of Calculations in Support of Amendment Request to Revise Technical Specifications and Surveillance Requirements for Operation with a 24-Month Fuel Cycle in Accordance with GL 91-04 Project stage: Other GNRO-2013/00024, Response to Request for Additional Information Re 18 to 24 Month License Amendment Request, Dated March 18, 20132013-08-15015 August 2013 Response to Request for Additional Information Re 18 to 24 Month License Amendment Request, Dated March 18, 2013 Project stage: Response to RAI ML13260A0062013-09-16016 September 2013 Email, Request for Additional Information, Round 3, Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04 Project stage: RAI GNRO-2013/00076, Supplemental Information to Clarify License Amendment Request for Implementing a 24-Month Fuel Cycle at Grand Gulf Nuclear Station, Unit 12013-09-24024 September 2013 Supplemental Information to Clarify License Amendment Request for Implementing a 24-Month Fuel Cycle at Grand Gulf Nuclear Station, Unit 1 Project stage: Supplement L-91-004, Supplement to the License Amendment Request for Implementing a 24 Month Fuel Cycle - Addendum2013-09-26026 September 2013 Supplement to the License Amendment Request for Implementing a 24 Month Fuel Cycle - Addendum Project stage: Supplement ML13323A5512013-10-0808 October 2013 Attachment 2 to GNRO-2013/00088, JC-Q1B21-N678-1 Rev. 2 Reactor Steam Dome Pressure Scram Setpoint Project stage: Other ML13323A5522013-10-14014 October 2013 Attachment 3 to GNRO-2013/00088, JC-Q1B21-N681-1 Rev. 1 Reactor Pressure Vessel Level One Setpoint Calculation Project stage: Other GNRO-2013/00074, Response to Electronic Request for Additional Information Regarding 18 to 24 Month License Amendment Request, Dated September 16, 20132013-10-14014 October 2013 Response to Electronic Request for Additional Information Regarding 18 to 24 Month License Amendment Request, Dated September 16, 2013 Project stage: Request ML13323A5532013-10-29029 October 2013 Attachment 4 to GNRO-2013/00088, JC-Q1B21-N694-1 Rev. 1 Drywell High Pressure RCIC Isolation Setpoint Calculation Project stage: Other ML13323A5542013-11-0404 November 2013 Attachment 5 to GNRO-2013/00088, EN-IC-S-022-G Rev. 0 Instrument Performance Monitoring and Drift Trending Analysis Project stage: Other ML13323A5502013-11-0808 November 2013 Attachment 1 to GNRO-2013/00088 JC-Q1P81-90024 Rev. 3 Division III Degraded Bus Voltage Setpoint Project stage: Other GNRO-2013/00088, Supplemental Response to Request for Additional Information Regarding 18 to 24 Month Fuel Cycle License Amendment Request (TAC ME9764), Dated May 1, 20132013-11-12012 November 2013 Supplemental Response to Request for Additional Information Regarding 18 to 24 Month Fuel Cycle License Amendment Request (TAC ME9764), Dated May 1, 2013 Project stage: Supplement GNRO-2013/00094, Supplement to License Amendment Request for Implementing a 24-Month Fuel Cycle2013-12-0505 December 2013 Supplement to License Amendment Request for Implementing a 24-Month Fuel Cycle Project stage: Supplement GNRO-2013/00097, Request to Withdraw Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle2013-12-11011 December 2013 Request to Withdraw Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle Project stage: Supplement ML13343A1092013-12-26026 December 2013 Issuance of Amendment No. 197, Revise Technical Specifications and Surveillance Requirements to Support Operation with 24-Month Fuel Cycle in Accordance with Generic Letter 91-04 Project stage: Approval 2013-12-26
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Category:E-Mail
MONTHYEARML24137A2702024-05-16016 May 2024 NRR E-mail Capture - Entergy Fleet - Acceptance Review of License Amendment Request to Remove Obsolete License Conditions from Operating Licenses for GGNS, RBS, and WF3 (L-2024-LLA-0062) ML24108A1142024-04-17017 April 2024 June 2024 Emergency Preparedness Program Inspection - Request for Information ML23348A1222023-12-14014 December 2023 NRR E-mail Capture - Grand Gulf, River Bend, and Waterford, Unit 3 - 2nd Round of Official RAIs for RR EN-RR-22-001, Use ASME Code Case N-752, Risk Informed Categorization for Class 2 and 3 Systems ML23335A0652023-12-0101 December 2023 NRR E-mail Capture - GGNS - Audit Questions for LARs Associated with TSTF-505, Provide Risk-Informed Extended Completion Times - RITSTF Init. 4b and 50.69, Risk-Informed Cat. and Treatment of SSCs for Nuclear Pwr Rx (L-2023-LLA-0081/0080) ML23240A3412023-08-28028 August 2023 NRR E-mail Capture - ANO-2, Grand Gulf, and River Bend - Acceptance Review of LAR Revising TSs to Adopt TSTF-205, Revision of Channel Calibration, Channel Functional Test, and Related Definitions ML23191A8662023-07-10010 July 2023 NRR E-mail Capture - Grand Gulf - Acceptance Review of LAR Adopting 10 CFR 50.69, Risk-Informed Categorization and Treatment of SSCs for Nuclear Power Reactors ML23191A2802023-07-10010 July 2023 NRR E-mail Capture - Grand Gulf - Acceptance Review for LAR Adopting TSTF-505, Rev. 2, Provide Risk-Informed Completion Times - RITSTF Initiative 4b ML23116A1462023-04-26026 April 2023 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Final RAI for Request to Update ASME Code Relief Request Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020, and RBS-ISI-019) ML23072A3672023-03-0909 March 2023 NRR E-mail Capture - Entergy Fleet - Acceptance Review of Quality Assurance Program Manual Reduction in Commitment ML23009B6912023-01-0909 January 2023 NRR E-mail Capture - Grand Gulf, Unit 1 and River, Unit 1 - Acceptance of Requested Licensing Action Request to Update ASME Code RR SE with NRC-Approved Revision of BWRVIP Guidelines ML22353A6122022-12-19019 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22206A0152022-07-21021 July 2022 NRR E-mail Capture - Entergy (Grand Gulf, River Bend, and Waterford-3) - Acceptance Review of the RR EN-RR-22-001, Case N-752, Risk-informed Cat & Treatment for Repair/Replacement Activities in Class 2 & 3 Systems ML22173A0372022-06-21021 June 2022 NRR E-mail Capture - Entergy (Grand Gulf and River Bend) - Acceptance Review of the License Amendment Request to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling ML22110A1172022-04-19019 April 2022 (GG) 2022 Emergency Preparedness (EP) Program Inspection RFI Sdh 041922 ML22075A3692022-03-0303 March 2022 Email Grand Gulf 2022 PI&R Request for Information ML21312A4792021-11-0505 November 2021 Email: NRC Staff Preliminary Questions Regarding X Energy LLC Xe-100 Topical Report: Risk-Informed Performance-Based Licensing Basis Development ML21308A5602021-11-0404 November 2021 NRR E-mail Capture - Arkansas Nuclear One, Units 1 and 2, Grand Gulf, River Bend, and Waterford, Unit 3 - Acceptance Review of LAR to Adopt TSTF-554, Revise Reactor Coolant Leakage Requirements ML21292A0112021-10-18018 October 2021 NRR E-mail Capture - ANO, 1 and 2, Grand Gulf, River Bend, Waterford, 3 - Acceptance Review of LAR to Adopt TSTF-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position ML21174A0342021-06-22022 June 2021 NRR E-mail Capture - Entergy Fleet (ANO, Ggulf, Rbend, & Waterford) - Acceptance Review for Relief Request to Use a Provision of a Later Edition of the ASME Code, Section XI for Periodic System Pressure Tests Exemptions ML21165A1352021-06-14014 June 2021 NRR E-mail Capture - Grand Gulf - Acceptance Review for Inserice Testing Program Relief Request VRR-GGNS-2021-1, Pressure Isolation Valve Testing Frequency ML21119A2152021-04-28028 April 2021 NRR E-mail Capture - Energy Harbor Fleet, Beaver Valley Units 1 and 2 and DAVIS-BESSE Unit 1 - Acceptance of Relief Request Proposed Alternative to Use ASME OM Code Case OMN-27 ML21109A2142021-04-19019 April 2021 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Rev. Est Hours for Review of Relief Request (RR) - ASME Code RR Safety Eval with NRC-Approved Rev of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML21109A2132021-03-23023 March 2021 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Relief Request (RR) Associated with ASME Code RR Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML21068A4092021-03-0909 March 2021 NRR E-mail Capture - Entergy Fleet (GGNS and RBS) -Approval of TSTF-501 LAR, Relocate Sored Fuel Oil and Lube Oil Volume Values to Licensee Control ML21015A3452021-01-14014 January 2021 NRR E-mail Capture - Grand Gulf and River Bend - Revised Estimated Hours for Relief Request Associated with ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML20363A1462020-12-22022 December 2020 Request for Information: Grand Gulf EP Exercise Inspection - March 2021 ML20352A1192020-12-10010 December 2020 Email from Thomas Saporito 12-10-20 ML20329A1442020-11-20020 November 2020 Terrapower QAPD Preliminary Questions Email ML20323A4162020-11-18018 November 2020 Response to Choice Letter (EA-20-094) ML20337A2712020-11-0909 November 2020 Email - Grand Gulf Nuclear Station 050-00416, Requested Regulatory Conference ML20289A3542020-10-14014 October 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of TSTF-563 LAR, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program ML20258A0202020-09-0909 September 2020 EP Program Inspection RFI, Request for Information to Support and Prepare for Emergency Preparedness (EP) Program Inspection Scheduled to Occur the Week of November 16, 2020 ML20260H4422020-09-0808 September 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Official RAIs for RR Associated with Updating ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML20176A4832020-06-22022 June 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of Relief Request Associated with ASME Code RR SE with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML20150A6012020-05-29029 May 2020 NRR E-mail Capture - Grand Gulf - Official RAI for LAR Associated with Containment ILRT Interval Change from 10 Years to 15 Years ML20097B8032020-04-0303 April 2020 NRR E-mail Capture - Grand Gulf - Acceptance Review for the Exigent LAR Associated with One-Time Extension of Appendix J Type a Integrated Leakage Rate Test Frequencies from 11.5 Years to 13.5 Years ML20093C3072020-04-0101 April 2020 NRR E-mail Capture - (External_Sender) Entergy Fleet - Performance-Based Cyber Security Testing Plan Fee Waiver Response Letter (EPID P-2020-PRF-0000; CAC No. 001648) ML20079D9302020-03-19019 March 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of LAR Associated with Adopting TSTF-501, Relocate Stored Fuel Oil and Lube Oil Volumes to Licensee Control ML20076B6322020-03-16016 March 2020 NRR E-mail Capture - Grand Gulf - Acceptance Review for the LAR Associated with Permanent Extension of Appendix J Type a Integrated Leakage Rate Test Frequencies ML20057G1752020-02-24024 February 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of LAR Associated with TSTF-566, Revise Actions for Inoperable RHR-Shutdown Cooling Subsystems ML20057G1592020-02-24024 February 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of LAR Associated with TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO ML19242C0122019-08-29029 August 2019 2.206 Petitioner (No Public Meeting Required) ML19339H4362019-08-26026 August 2019 Request for Information IR 05000416/2019-004 ML19115A3512019-04-25025 April 2019 LTR-19-0177 Tom Gurdziel, E-mail a Matter of Fairness Entergy Grand Gulf Seems to Be Running Rather Steadily at 100 Percent ML19151A3312019-04-0303 April 2019 (OEDO-19-00053)10 CFR 2.206 Petition Involving Grand Gulf Nuclear Station ML19095B7622019-04-0303 April 2019 Acceptance Review Results for License Amendment Request to Adopt TSTF-564, Revision 2, Safety Limit MCPR (Minimum Critical Power Ratio), for Grand Gulf Nuclear Station, Unit 1 and River Bend Station, Unit 1 (EPID L-22019-LLA-0051) ML19078A3772019-03-19019 March 2019 NRR E-mail Capture - Grand Gulf - Official Rais for Relief Request GG-ISI-023, Inservice Inspection Impracticality, Limited Coverage Examinations During the Third 10-Year Inservice Inspection Interval ML19059A1782019-02-28028 February 2019 Acceptance Review Results for Relief Request No. EN-19-RR-1 to Use ASME Code Case N-831-1 for Entergy Fleet ML19059A0292019-02-27027 February 2019 NRR E-mail Capture - Acceptance Review Results for License Amendment Request to Adopt TSTF-529, Revision 4, Clarify Use and Application Rules, for Entergy Fleet ML19053A7622019-02-22022 February 2019 NRR E-mail Capture - Grand Gulf - Acceptance of the LAR Associated with Revising TS 3.3.1.1 (RPS Instrumentation) and TS 3.3.4.1 (EOC-RPT Instrumentation) 2024-05-16
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML23348A1222023-12-14014 December 2023 NRR E-mail Capture - Grand Gulf, River Bend, and Waterford, Unit 3 - 2nd Round of Official RAIs for RR EN-RR-22-001, Use ASME Code Case N-752, Risk Informed Categorization for Class 2 and 3 Systems ML23116A1462023-04-26026 April 2023 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Final RAI for Request to Update ASME Code Relief Request Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020, and RBS-ISI-019) ML23059A0742023-02-27027 February 2023 Information Request, Security IR 2023402 ML22353A6122022-12-19019 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22271A8572022-10-0303 October 2022 Notification of Commercial Grade Dedication Inspection (05000416/2023011) and Request for Information ML22110A1172022-04-19019 April 2022 (GG) 2022 Emergency Preparedness (EP) Program Inspection RFI Sdh 041922 ML21179A1202021-06-28028 June 2021 Notification of NRC Supplemental Inspection of Action Matrix Column 3 (Degraded Performance) Inputs and Request for Information ML21074A0822021-03-15015 March 2021 Notification of Evaluations of Changes, Tests, and Experiments Inspection (Inspection Report 05000416/2021002) and Request for Information ML20363A1462020-12-22022 December 2020 Request for Information: Grand Gulf EP Exercise Inspection - March 2021 ML20258A0202020-09-0909 September 2020 EP Program Inspection RFI, Request for Information to Support and Prepare for Emergency Preparedness (EP) Program Inspection Scheduled to Occur the Week of November 16, 2020 ML20260H4422020-09-0808 September 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Official RAIs for RR Associated with Updating ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML20155K7172020-06-0303 June 2020 Notification of NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000416/2020013) and Request for Information ML20150A6012020-05-29029 May 2020 NRR E-mail Capture - Grand Gulf - Official RAI for LAR Associated with Containment ILRT Interval Change from 10 Years to 15 Years ML19302E1082019-10-29029 October 2019 Document Request - GG 95001 - August 2 2019 ML19078A3772019-03-19019 March 2019 NRR E-mail Capture - Grand Gulf - Official Rais for Relief Request GG-ISI-023, Inservice Inspection Impracticality, Limited Coverage Examinations During the Third 10-Year Inservice Inspection Interval ML19063B4882019-03-0404 March 2019 Notification of NRC Triennial Heat Sink Performance Inspection (05000416/2019002) and Request for Information ML18304A4602018-10-31031 October 2018 NRR E-mail Capture - Final Request for Additional Information - TSTF-425 (L-2018-LLA-0106) ML18250A3042018-08-30030 August 2018 NRR E-mail Capture - Final Request for Additional Information - Emergency Action Level Scheme Change (L-2018-LLA-0116) ML18250A3032018-08-0101 August 2018 NRR E-mail Capture - Correction: Draft RAI - EAL Scheme Change (L-2018-LLA-0116) ML18187A3292018-07-20020 July 2018 Request for Additional Information, Request to Revise Updated Final Safety Analysis Report to Incorporate Tornado Missile Risk Evaluator Methodology Into Licensing Basis ML18138A4682018-05-23023 May 2018 Supplemental Information Needed for Acceptance of Request for Licensing Action Adoption of TSTF-425, Relocate Surveillance Frequencies to License Control ML18058A0572018-02-23023 February 2018 Enclosurequest for Additional Information (Letter to J. Giddens Request for Additional Information Regarding Entergy Operations, Inc.'S Decommissioning Funding Plan Update) ML17257A1422017-09-14014 September 2017 NRR E-mail Capture - Grand Gulf - Official Requests for Additional Information (Rais) for RR GG-ISI-020 to Use BWRVIP Guidelines ML17235B1752017-08-23023 August 2017 NRR E-mail Capture - Grand Gulf - Official RAI for Relief Request GG-ISI-021 Associated with Fourth Interval Inservice Inspection Using Code Case N-702 ML17214A0992017-08-0202 August 2017 NRR E-mail Capture - Grand Gulf - Official RAIs for LAR Associated with One Cycle Extension of Appendix J Type a ILRT and Drywell Bypass Test Interval ML17142A2582017-05-19019 May 2017 Notification of NRC Design Bases Assurance Inspection (05000416/2017007) and Initial Request for Information ML16181A1122016-07-12012 July 2016 Request for Additional Information on Severe Accident Mitigation Alternatives for the Review of the Grand Gulf Nuclear Station, Unit 1, License Renewal Application Environmental Review ML16117A1862016-04-26026 April 2016 Entergy Fleet Relief Request EN-ISI-15-1 Request for Additional Information - 04/26/16 Email from R. Guzman to G. Davant (CAC Nos. MF7133-MF7136) ML16013A0642016-01-13013 January 2016 NRR E-mail Capture - Request for Additional Information Entergy CNRO-2015-00023 - Revision to Entergy Quality Assurance Program Manual (Fleet Submittal CAC Nos. MF7086-MF7097) ML15341A1662015-12-0707 December 2015 NRR E-mail Capture - Entergy Fleet RR-EN-15-1, Request for Additional Information (CACs MF6341-MF6349) ML15286A1082015-10-28028 October 2015 Requests for Additional Information for the Review of the Grand Gulf Nuclear Station, License Renewal Application ML15261A5652015-09-24024 September 2015 Request for Additional Information Regarding Proposed Revision of Technical Specifications for Containment Leak Rate Testing ML15085A4932015-04-0606 April 2015 Request for Additional Information for the Review of the Grand Gulf Nuclear Station License Renewal Application, Set 52 GNRO-2015/00002, Response to Electronic Request for Additional Information Regarding Modification of Technical Specification (TS) 3.8.4, DC Sources Operating Surveillance Requirements (Srs) 3.8.4.2 and 3.8.4.5. Amendment Request Dated 12/9/20142015-03-27027 March 2015 Response to Electronic Request for Additional Information Regarding Modification of Technical Specification (TS) 3.8.4, DC Sources Operating Surveillance Requirements (Srs) 3.8.4.2 and 3.8.4.5. Amendment Request Dated 12/9/2014 ML15036A5642015-02-18018 February 2015 Updated Fluence Methodology License Amendment Request Unacceptable with Opportunity to Supplement GNRO-2014/00079, Request for Additional Information Regarding Request for Adoption of TSTF-423, Revision 1, Change in Technical Specification End States (CE-NPSD-1186)2014-11-13013 November 2014 Request for Additional Information Regarding Request for Adoption of TSTF-423, Revision 1, Change in Technical Specification End States (CE-NPSD-1186) GNRO-2014/00076, Response to Request for Additional (RAI) Set 51 Dated September 11, 20142014-11-0606 November 2014 Response to Request for Additional (RAI) Set 51 Dated September 11, 2014 GNRO-2014/00031, Response to Electronic Request for Additional Information Regarding Maximum Extended Load Line Limit Plus Amendment Request, Dated 3/18/20142014-04-11011 April 2014 Response to Electronic Request for Additional Information Regarding Maximum Extended Load Line Limit Plus Amendment Request, Dated 3/18/2014 ML13318A8052014-01-0202 January 2014 Request for Additional Information for the Review of the Grand Gulf Nuclear Station, License Renewal Application (TAC No. ME7493) - Set 50 ML13353A6572013-12-19019 December 2013 Licensed Operator Positive Fitness-For-Duty Test ML13345A1822013-12-19019 December 2013 Supplemental Information Needed for Acceptance of Licensing Action, Request to Revise Technical Specification to Allow Operation in Expanded Maximum Extended Load Line Limit Analysis Plus (Mellla+) Domain ML13316B9862013-11-25025 November 2013 Interim Staff Evaluation and Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051) ML13263A2252013-11-21021 November 2013 LRA Draft RAI Set 48 ML13304B4182013-11-0101 November 2013 Request for Additional Information Associated with Near-Term Task Force Recommendation 2.3, Seismic Walkdowns ML13260A0062013-09-16016 September 2013 Email, Request for Additional Information, Round 3, Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04 ML13238A2342013-09-12012 September 2013 Requests for Additional Information for the Review of the Grand Gulf Nuclear Station, License Renewal Application (TAC No. ME7493) - Set 49 ML13227A3942013-08-28028 August 2013 Request for Additional Information for the Review of the Grand Gulf Nuclear Station, License Renewal Application (TAC No. ME7493) - Set 47 ML13226A1902013-08-14014 August 2013 Request for Additional Information Email, Round 2, Request to Revise FOL to Delete 2.C(32), Partial Feedwater Heating, to Allow Plant to Operate with Final Feedwater Temperature Reduction at End of Fuel Cycle ML13207A1242013-07-30030 July 2013 Request for Additional Information, Overall Integrated Plan in Response to 3/12/2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order No. EA-12-051) ML13149A3662013-05-29029 May 2013 Request for Additional Information Email Decommissioning Funding Status Report 2023-04-26
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Lent. Susan From: Wang, Alan Sent: Monday, March 18,201311:14 AM To: Ward, Steven; SEITER, ,IEFFERY ALAN Cc: Lent, Susan; Burkhardt, Janet
Subject:
Grand Gulf Nuclear Station Request for Additional Information Regarding 18 to 24 Month License Amendment Request (TAe ME9764)
Attachments: EEEB RA3-18-13.docx Jeff and Steve, By Letter dated October 2, 2012 (Agencywide Documents Access management System (ADAMS) Accession number ML122770130), Entergy Operations, Inc. (the licensee), requested an amendment to Facility Operating License Number NPF-29 for Grand Gulf Nuclear Station (GGNS), Unit 1. The proposed amendment would revise the Technical Specifications (TSs) to extend certain surveillance frequencies that are currently specified as "18 months" to "24 months" to support operation with 24-month fuel cycles.
The NRC staff has determined that additional information, related to the electrical engineering branch review, is needed to complete our review of this request. This request for additional information (RAI) was discussed with Mr. Steven Ward on March 18, 2013, and it was agreed that a response would be provided within 30 days of receipt of this email. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1445 or via e-mail at Alan.Wang@nrc.gov.
The RAls are attached and related to your license amendment request dated October 2,2012. In addition, on a conference call on February 15, 2013, the NRC staff informed the licensee that if its chooses to replace the Service Test with a Modified Performance test, they will need to provide the duty cycle/profile (either in graphical or numeric form) that shows that the Modified Performance Test completely envelopes the Service Test.
Alan Wang Project Manager (Grand Gulf Nuclear Station)
Nuclear Regulatory Commission Division of Operating Reactor Licensing Alan.Wang@NRC.gov Tel: (301) 415-1445 Fax: (301) 415-1222 1
REQUEST FOR ADDITIONAL INFORMATION REGARDING GRAND GULF NUCLEAR STATION, UNIT 1 LICENSE AMENDMENT REQUEST FOR IMPLEMENTING A 24-MONTH FUEL CYCLE DOCKET NO. 50-416 By Letter dated October 2,2012 (Agencywide Documents Access management System (ADAMS) Accession number ML122770130), Entergy Operations, Inc. (the licensee), requested a license amendment request (LAR) to Facility Operating License Number NPF-29 for Grand Gulf Nuclear Station, Unit 1 (GGNS). The proposed amendment would revise the Technical Specifications (TSs) to extend certain surveillance frequencies that are currently specified as "18 months" to "24 months" to support operation with 24-month fuel cycles. The proposed TS changes are in accordance with the guidance in NRC GL 91-04, "Changes in Technical Specifications Surveillance Intervals to Accommodate a 24-month fuel cycle." The NRC staff had determined that the following information is needed to complete its review:
- 1. In Attachment 5, Section 3.8.1, AC Sources-Operating, of the LAR, the licensee stated that a review of the applicable surveillance history for the AC sources demonstrated that there have been seven previous failures of the TS functions that would have been detected solely by the periodic performance of these surveillance requirements (SRs).
Explain how each of these failures were identified. Also, explain how each of these failures would have been identified by the TS SRs and why the failures were not identified during the performance of these TS SRs.
- 2. In Attachment 5, Section 3.8.4, DC Sources-Operating, of the LAR, the licensee stated that a review of the applicable surveillance history demonstrated that DC electric power subsystem had three previous failures of the TS functions that would have been detected solely by the periodic performance of these SRs. The licensee identified these three failures related to the current limit board of the Battery Charger 1A4 in 2003, 2007 and 2009.
a) Provide a discussion as to why these three failures related to Battery Charger 1A4 were not considered in the technical evaluation of the LAR as repetitive and of common cause failure nature.
b) Explain how each of these failures was identified. Also, explain how each ofthese failures would have been identified by these TS SRs and why the failures were not identified during the performance of these TS SRs.
c) Provide a discussion on how the determination was made that no timed-based mechanisms are apparent for these failures.
- 3. In Attachment 5, Section 3.8.4 of the LAR, the licensee stated:
Additionally, upon approval of this amendment request, commitments outlined in the GGNS UFSAR [Updated Final Safety Analysis Report] related to RG 1.32, "Criteria for ENCLOSURE
- 2 Safety-related Electric Power Systems for Nuclear Power Plants," RG 1.129, "Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Nuclear Power Plants," and to IEEE-450, "Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications," to perform the battery service test (i.e., SR 3.8.4.3) during refueling outages, or at some other outage, with intervals between tests "not to exceed 18 months," will be revised to reflect intervals between tests "not to exceed 30 months."
However, the NRC staff notes that the 18 month frequency of SR 3.8.4.3 is based on engineering judgment taking into consideration the desired unit conditions to perform the surveillance as stated in the GGNS TSs Bases and, also, on aging characteristics of vented lead-acid batteries as known in the industry. Also, SR 3.8.4.3 is not a service discharge test, but a visual inspection of the battery cells, cell plates, and battery racks.
a) Regarding the statement above, provide a discussion as to why SR 3.8.4.3 is considered a service discharge test and clarify if the commitments related to Regulatory Guide (RG) 1.32, RG 1.129, and IEEE-450 are applicable to SR 3.8.4.3.
b) The versions of RG 1.32 and RG 1.129 in the UFSAR endorse the performance of battery service discharge tests at 18-month surveillance intervals. Since the proposed change to the battery service discharge tests at 24-month surveillance intervals is endorsed in the latest versions of these RGs, provide a regulatory commitment to follow the guidance in the latest versions of RG 1.32 and RG 1.129 and incorporate these RG versions into the next revision of the GGNS UFSAR.
- 4. In Attachment 5, Sections 3.8.1 and 3.8.4, the licensee stated that the surveillance test interval of these SRs is being increased from once every 18 months to once every 24 months including the 25% grace period.
However, the NRC staff notes that SR 3.0.2 allows certain surveillances to be performed within 1.25 times the interval specified in the Frequency in situations where plant conditions (e.g. transient conditions or other ongoing surveillance or maintenance activities) are not suitable for conducting these surveillances at their specified frequencies.
a) Since SR 3.8.1.8 and SR 3.8.1.12 are required to be performed in Mode 3, 4 or 5, and SR 3.8.1.11, SR 3.8.1.16, SR 3.8.1.18, SR 3.8.1.19 and SR 3.8.4.7 are required to be performed in Mode 4 or 5, explain how SR 3.0.2 would be applied if either one of those surveillances was not performed during plant shutdown for some reason.
b) NRC RGs limit surveillance intervals for service discharge tests to once per 18 or 24 months, depending on which revision. Given this, explain why SR 3.0.2 should be applicable to SR 3.8.4.7 when extending the surveillance interval from 18 to 24 months.