Letter Sequence RAI |
---|
TAC:MC8898, RPS and ESFAS Test Times and Completion Times - WCAP-14333 (Open) |
|
MONTHYEARML0608000032006-03-21021 March 2006 V.C. Summer - Request for Additional Information Regarding Instrumentation Test and Completion Times Project stage: RAI RC-06-0067, LAR 05-2926 Implementation of WCAP-14333-P-A, Rev. 1, Probabilistic Risk Analysis of the RPS and ESFAS Test Times and Completion Times Response to Request for Additional Information2006-05-31031 May 2006 LAR 05-2926 Implementation of WCAP-14333-P-A, Rev. 1, Probabilistic Risk Analysis of the RPS and ESFAS Test Times and Completion Times Response to Request for Additional Information Project stage: Response to RAI RC-06-0173, V. C. Summer - LAR 05-2926, Implementation of WCAP-14333-P-A, Rev. 1, Probabilistic Risk Analysis of RPS and ESFAS Test Times and Completion Times - Summarized List of Commitments2006-09-29029 September 2006 V. C. Summer - LAR 05-2926, Implementation of WCAP-14333-P-A, Rev. 1, Probabilistic Risk Analysis of RPS and ESFAS Test Times and Completion Times - Summarized List of Commitments Project stage: Other ML0624306842006-10-24024 October 2006 V. C. Summer, License Amendment, WCAP-14333, Probabilistic Risk Analysis of the RPS and ESFAS Test Times and Completion Times. Project stage: Acceptance Review ML0630000262006-10-24024 October 2006 Technical Specifications, Implementing Approved Changes in Probabilistic Risk Analysis of the RPS and ESFAS Test Times and Completion Times. Project stage: Request 2006-03-21
[Table View] |
|
---|
Category:Letter
MONTHYEARIR 05000395/20240052024-08-22022 August 2024 Updated Inspection Plan for Virgil C. Summer Nuclear Station - Report 05000395/2024005 IR 05000395/20240022024-08-12012 August 2024 Integrated Inspection Report 05000395/2024002 ML24180A0062024-08-0505 August 2024 Issuance of Amendment No. 227 to Modify Technical Specification 3.8.3.1 to Increase Completion Time for 120-Volt A.C. Vital Busses ML24218A3002024-08-0101 August 2024 Environmental Review Response to NRC Requests for Additional Information and Response to NRC Requests for Confirmation of Information Set 1 ML24158A3882024-07-31031 July 2024 Issuance of Amendment No. 226 to Change Emergency Plan Staff Augmentation Times and Relocate Emergency Operations Facility ML24162A3292024-07-0505 July 2024 Letter to E Carr - V.C. Summer Unit 1 - Summary of the May 2024 Audit Regarding the Environmental Review of the Subsequent License Renewal Application IR 05000395/20240112024-06-26026 June 2024 – Comprehensive Engineering Team Inspection Report 05000395/2024011 ML24177A1382024-06-25025 June 2024 Aging Management Audit Report- VC Summer, Unit 1 - Subsequent License Renewal Application ML24178A2422024-06-25025 June 2024 2023 Annual Report of Emergency Core Cooling System (ECCS) Model, Changes Pursuant to the Requirements of 10 CFR 50.46 ML24178A1192024-06-25025 June 2024 Update to License Amendment Request- Inverter Allowed Outage Time (AOT) Extension ML24177A2792024-06-20020 June 2024 Preparation and Scheduling of Operator Licensing Examinations ML24171A0152024-06-17017 June 2024 Update to Subsequent License Renewal Application (SLRA) Response to NRC Request for Additional Information Set 2 Safety Review ML24157A3352024-06-0606 June 2024 – Notification of an NRC Cybersecurity Baseline Inspection (NRC Inspection Report 05000395-2024404 and Request for Information ML24155A2042024-05-31031 May 2024 Proposed Alternative Request RR-24-123, Containment Unbonded Post-Tensioning System Inservice Inspection Requirements ML24155A1462024-05-30030 May 2024 Update to Subsequent License Renewal Application (SLRA) -Response to NRC Request for Additional Information Set 1 Response to NRC Request for Confirmation of Information Set 1 and Supplement 3 ML24143A1792024-05-22022 May 2024 Special Report 2024-001-01 for Virgil C. Summer Nuclear Station (Vcsns), Unit 1, Waste Gas System Inoperability ML24141A2822024-05-20020 May 2024 (Vcsns), Unit 1 - License Amendment Request - Emergency Response Organization (ERO) Augmentation Time Change, Emergency Operations Facility Relocation and Other Emergency Plan Changes IR 05000395/20240012024-05-10010 May 2024 Integrated Inspection Report 05000395/2024001 ML24129A2002024-05-0606 May 2024 Update to Subsequent License Renewal Application, Supplement 2 IR 05000395/20240402024-05-0101 May 2024 95001 Supplemental Inspection Report 05000395/2024040 and Follow-Up Assessment Letter ML24121A1002024-04-29029 April 2024 Response to Request for Additional Information Regarding Alternative Request RR-5-V2 ML24120A2072024-04-29029 April 2024 Submittal of Annual Radiological Environmental Operating Report ML24116A2052024-04-23023 April 2024 Annual Radioactive Effluent Release Report ML24109A1792024-04-19019 April 2024 Aging Management Audit Plan Regarding the Subsequent License Renewal Application Review ML24108A0392024-04-18018 April 2024 Letter to E Carr-V.C. Summer Unit 1- Regulatory Audit Regarding the Environmental Review of the Subsequent License Renewal Application ML24108A0672024-04-17017 April 2024 Submittal of Summary for Condition of the Service Water Intake Structure Provided in Accordance with License Condition 2.C.5.d ML24100A7312024-04-0909 April 2024 Personnel Exposure and Monitoring Annual Report ML24095A2072024-04-0101 April 2024 Update to Subsequent License Renewal Application (SLRA) Supplement 1 ML24087A2182024-03-26026 March 2024 (Vcsns), Unit 1 - License Amendment Request - Emergency Response Organization (ERO) Augmentation Time Change, Emergency Operations Facility Relocation and Other Emergency Plan Changes - Response to Request. ML24087A2262024-03-26026 March 2024 License Amendment Request - Inverter Allowed Outage Time Extension Response to Request for Additional Information ML24088A2062024-03-26026 March 2024 Annual Operating Report ML24067A0232024-03-0707 March 2024 (Vcsns), Unit 1 - Readiness for 95001 Supplemental Inspection; EA-23-093 IR 05000395/20230062024-02-28028 February 2024 Annual Assessment Letter for Virgil C. Summer Nuclear Station - Report 05000395/2023006 IR 05000395/20244032024-02-27027 February 2024 Security Baseline Inspection Report 05000395/2024403 ML24057A1132024-02-22022 February 2024 Special Report 2024-001 Waste Gas System Inoperability ML24051A0112024-02-20020 February 2024 Fws to NRC, List of Threatened and Endangered Species That May Occur in Proposed Project Location or May Be Affected by Proposed Project for V.C. Summer SLR ML24057A0612024-02-19019 February 2024 and Virgil C. Summer Power Nuclear Stations - Nuclear Property Insurance Coverage ML24032A3062024-02-15015 February 2024 Exemption from Select Requirements of 10 CFR Part 73 - Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting ML24040A1802024-02-12012 February 2024 Notification of NRC Supplemental Inspection (95001) and Request for Information IR 05000395/20244012024-02-0808 February 2024 Security Baseline Inspection Report 05000395/2024401 ML24038A0322024-02-0707 February 2024 (Vcsns), Unit 1, 10 CFR 21 Report - Emergency Diesel Generator Flash Contactor Relay IR 05000395/20230042024-01-31031 January 2024 Integrated Inspection Report 05000395/2023004 ML24022A1202024-01-22022 January 2024 Notification of Target Set Inspection and Request for Information (NRC Inspection Report 05000395/2024403) ML24022A1582024-01-22022 January 2024 (Vcsns), Unit 1 - Reply to a Notice of Violation: EA-23-093 ML24018A0112024-01-18018 January 2024 CFR 21 Report Emergency Diesel Generator Fuel Oil Piping ML23361A1042023-12-21021 December 2023 Inservice Testing Program for Pumps and Valves Fifth Interval Update and Associated Relief and Alternative Requests IR 05000395/20230912023-12-21021 December 2023 Final Significance Determination of a White Finding and Notice of Violation and Assessment Followup Letternrc Inspection Report 05000395/2023091 ML23354A1802023-12-20020 December 2023 301 Examination Report with Cover Letter ML23347A0492023-12-12012 December 2023 Technical Specification Bases Changes Updated Through November 2023 ML23334A2372023-11-30030 November 2023 (Vvsns), Unit 1 - Annual Commitment Change Summary Report 2024-08-05
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24232A1812024-08-19019 August 2024 Summer_2024-04_RP Information Request ML24190A0412024-07-0505 July 2024 Notification of Inspection and Request for Information ML24156A0032024-06-0303 June 2024 VC Summer SLRA - Requests for Additional Information - Set 2 ML24075A1872024-03-15015 March 2024 NRR E-mail Capture - Draft RAIs for Alternative Request RR-5-V2 (L-2023-LLR-0068) ML24067A0672024-03-0707 March 2024 NRR E-mail Capture - Draft RAIs for Inverter CT License Amendment Request TS 3.8.3.1, “Onsite Power Distribution - Operating,” (L-2023-LLA-0157) ML24052A0102024-02-16016 February 2024 NRR E-mail Capture - Draft RAIs for Emergency Plan (EP) Changes License Amendment Request (LAR) (L-2023-LLA-0083) ML23270B8712023-09-27027 September 2023 NRR E-mail Capture - Draft RAIs for License Amendment Request (LAR) to Revise the Virgil C. Summer Nuclear Station (VCSNS) Unit 1 Emergency Plan (L-2023-LLA-0083) ML22263A0502022-09-19019 September 2022 NRR E-mail Capture - Draft Request for Additional Information for Proposed Alternative Request RR-4-26 Extension of Steam Generator Primary Inlet Nozzle Dissimilar Metal Weld Inspection Interval V.C. Summer Unit 1 ML22194A9422022-07-13013 July 2022 NRC 50.59 Inspection (IP 71111.17T) Information Request ML22075A0482022-03-16016 March 2022 V.C. Summer Nuclear Station - Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000395/2022401 ML21333A1892021-11-29029 November 2021 NRR E-mail Capture - Draft RAI for Summer LAR Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5b, (TSTF-425) ML21253A1352021-09-0808 September 2021 Document Request for VC Summer Nuclear Station - Radiation Protection Inspection - Inspection Report 2021-04 ML21154A2792021-06-0303 June 2021 Requalification Program Inspection 05000395/2021003 - Virgil C. Summer Nuclear Station, Unit 1, ML21145A0222021-05-24024 May 2021 003 Radiation Safety Baseline Inspection Information Request ML21131A0402021-05-11011 May 2021 NRR E-mail Capture - V.C. Summer, Unit 1 - Final RAI for the Spring 2020 RFO Sgtir Review ML21020A0562021-01-20020 January 2021 Email Capture Upcoming V.C. Summer POV Inspection (IP71111.21N.02) Information Request ML20342A1822020-12-0707 December 2020 NRR E-mail Capture - Final RAI for Summer LAR - TS 3.6.4 ML20342A3822020-12-0707 December 2020 NRR E-mail Capture - Final RAIs for Summer Fs LOCA LAR ML20321A2112020-11-16016 November 2020 NRR E-mail Capture - Summer, Unit 1 - Final RAIs for the SG Tube Inspection Report Review ML20196L7782020-07-13013 July 2020 Notification of Virgil C. Summer Nuclear Station Design Bases Assurance Inspection U.S. Nuclear Regulatory Commission Inspection Report 05000395/2020010 ML20106E8902020-04-15015 April 2020 Program Inspection RFI ML20056E3042020-02-25025 February 2020 VC Summer 2020-002 Radiation Safety Baseline Inspection Information Request ML19211D5102019-07-30030 July 2019 NRR E-mail Capture - Virgil C. Summer Nuclear Station, Unit No. 1 - Request for Additional Information LAR-16-01490 NFPA-805 (Supplement to PRA RAI 03) ML19179A1262019-06-27027 June 2019 NRR E-mail Capture - Virgil C. Summer Nuclear Station, Unit No. 1 - Request for Additional Information LAR-16-01490 NFPA-805 Program Revisions ML19095A6532019-04-0404 April 2019 NRR E-mail Capture - Virgil C. Summer Nuclear Station, Unit No. 1 - Request for Additional Information NFPA-805 Program Revisions LAR ML19072A1442019-03-13013 March 2019 NRR E-mail Capture - Virgil C. Summer Nuclear Station, Unit No. 1 - Request for Additional Information LAR-16-01490 NFPA-805 Program Revisions ML19009A1052019-01-0909 January 2019 NRR E-mail Capture - Virgil C. Summer Nuclear Station, Unit No. 1 - Request for Additional Information LAR-10-02395, TS 3.8.2, D.C. Sources - Operating ML18249A1932018-09-0505 September 2018 TS 4.3.3.6 SR LAR - Request for Additional Information ML18225A0932018-08-13013 August 2018 Notification of Inspection and Request for Information ML18218A2622018-08-0101 August 2018 Emergency Preparedness Program Inspection Request for Information ML18066A0002018-03-0808 March 2018 Request for Additional Information Integrated Leak Rate Test Peak Calculated Containment Internal Pressure Change ML18023B0692018-02-15015 February 2018 Request for Additional Information Relief Request (RR-4-13), Use of Risk-Informed Process as an Alternative for the Selection of Class 1 and Class 2 Piping Welds ML17095A2842017-05-11011 May 2017 Request for Additional Information License Amendment Request for Implementation of TSTF-411 (WCAP-15376-P-A), Revision 1 ML17067A5322017-03-0808 March 2017 Notification of Radiation Protection Baseline Inspection and Request for Information ML17059C5382017-02-23023 February 2017 Notification of Inspection and Request for Information ML16302A1252016-11-0808 November 2016 Request for Additional Information License Amendment Request for Implementation of TSTF-411 and WCAP-15376-P-A, Revision 1 RC-16-0112, NRC Request Information Baseline Radiation Safety Inspection2016-07-0707 July 2016 NRC Request Information Baseline Radiation Safety Inspection ML16111A0912016-05-0303 May 2016 Request for Additional Information Regarding the Station Physical Security Plan, Revision 14 ML16097A0812016-04-0808 April 2016 Request for Additional Information ML16064A0332016-03-0303 March 2016 NRR E-mail Capture - Request for Additional Information Related to the March 1, 2016, Exigent Amendment Request ML16042A4712016-02-18018 February 2016 Request for Additional Information ML15320A3382015-12-0101 December 2015 Request for Additional Information Regarding License Basis Changes in Steam Generator Tube Rupture Analysis RC-15-0177, Submits LAR-12-04269, License Basis Changes in Steam Generator Tube Rupture Analysis Response to Response for Additional Information2015-11-0505 November 2015 Submits LAR-12-04269, License Basis Changes in Steam Generator Tube Rupture Analysis Response to Response for Additional Information ML15261A0512015-09-22022 September 2015 Request for Additional Information Regarding License Basis Changes in Steam Generator Tube Rupture Analysis ML15118A4592015-05-19019 May 2015 Request for Additional Information Regarding Alternative Request ML15118A3802015-05-0505 May 2015 Request for Additional Information Regarding Snubber Program Alternative Request ML15076A1182015-04-13013 April 2015 Request for Additional Information Regarding License Basis Changes in Steam Generator Tube Rupture Analysis ML15079A0992015-03-26026 March 2015 Request for Additional Information ML14339A0302015-01-0909 January 2015 Request for Additional Information Regarding License Basis Changes in Steam Generator Tube Rupture Analysis ML14268A5162014-10-23023 October 2014 Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic Re-evaluation Related to Southeastern Catalog Changes 2024-08-19
[Table view] |
Text
March 21, 2006Mr. Jeffery ArchieVice President, Nuclear Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 29065
SUBJECT:
VIRGIL C. SUMMER NUCLEAR STATION - REQUEST FOR ADDITIONALINFORMATION REGARDING INSTRUMENTATION TEST AND COMPLETION TIMES (TAC NO. MC8898)
Dear Mr. Archie:
The Nuclear Regulatory Commission staff is reviewing the license amendment application forthe Virgil C. Summer Nuclear Station dated November 15, 2005, concerning instrumentationtest and completion times and find that we need additional information as identified in the enclosure.
This request for additional information was discussed with your staff on March 20, 2006, and your staff indicated that a response could be provided by May 1, 2006. Please contact me if you have any questions. Sincerely, /RA/Robert E. Martin, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-395
Enclosure:
Request for Additional Information cc: See next page
ML060800003 NRR-088OFFICENRR/LPL2-1/PMNRR/LPL2-1/LANRR/LPL2-1/BCNAMERMartinCSolaEMarinosDATE3/21/063/21/063/21/06 EnclosureREQUEST FOR ADDITIONAL INFORMATIONRISK INFORMED JUSTIFICATION FOR EXTENDING ALLOWED OUTAGE TIME (AOT) BYPASS TEST TIMES VIRGIL C. SUMMER NUCLEAR STATION (VCSNS)1.Westinghouse Commercial Atomic Power report (WCAP) -14333-P-A, Rev. 1,"Probabilistic Risk Analysis of the RPS [reactor protection system] and ESFAS[engineered safety feature actuation system] Test Times and Completion Times," datedOctober 1998, Section 11.0, "Implementation of the Proposed Technical SpecificationChanges," Item 3, notes that a change to the action for an inoperable slave relay to"following the expiration of the slave relay AOT, the component affected by theinoperable slave should be declared inoperable and the TS [Technical Specification]action for this component should be followed." Is this modification required for the VirgilC. Summer Nuclear Station (VCSNS) TS? Explain why or why not. 2.Confirm that the VCSNS RPS utilizes the solid state protection system for the logicportion of the RPS. 3.Regulatory Guide (RG) 1.174, "An Approach for Using Probabilistic Risk Assessment inRisk-Informed Decisions on Plant-Specific Changes to the Licensing Basis," Section 2.3and RG 1.177, "An Approach for Plant-Specific, Risk-Informed Decisionmaking:Technical Specifications," Section 3, as part of the key principles in implementingrisk-informed decisionmaking, establishes the need for an implementation andmonitoring program to ensure that extensions to TS AOT or surveillance test intervalsdo not degrade operational safety over time and that no adverse degradation occursdue to changes in the licensing basis due to unanticipated degradation or commoncause mechanisms. An implementation and monitoring program is intended to ensurethat the impact of the proposed TS change continues to reflect the reliability andavailability of structures, systems and components impacted by the change. Provideinformation on the VCSNS implementation and monitoring program as applied to theincorporation of WCAP-14333 at VCSNS.4.The analysis for WCAP-14333 assumed that maintenance on master and slave relays,logic cabinets, and analog channels while at power occurs only after a componentfailure, and that preventive maintenance does not occur. The topical report does notpreclude the practice of at-power preventive maintenance but limits the total time acomponent is unavailable due to corrective or preventive maintenance to the valuesused in the analysis. If preventive maintenance is to be performed at VCSNS, confirmthat the unavailability for components evaluated in WCAP-14333 are consistent with theplant specific estimates at VCSNS and do not exceed those assumed in the analysis. See the submittal, "Implementation Guideline," Table 1, "Analog Channel Calibration" asan example. 5.Provide the date of the VCSNS probabilistic risk assessment (PRA) industry peer reviewand date of certification.6.Confirm that the WCAP-14333 reference plant assumptions for human reliability areapplicable to VCSNS. As an example, see the "B" level Facts and Observations (F&Os)discussion for HR-06 on pages 18 and 19 of the submittal.7.The licensee's submittal states that due to the generic analysis of WCAP-14333 thesecond F&O concerning internal floods has no impact on the proposed changes. The Nuclear Regulatory Commission (NRC) staff notes that internal flooding may haveunique plant specific vulnerabilities and may not be bounded by the generic analysis.Internal floods were not part of the implementation guidance for WCAP-14333. Providea plant-specific assessment (either qualitative or quantitative) to confirm that VCSNSinternal flooding results are bounded by WCAP-14333 for this F&O.8. Provide an assessment of the external events risk impact including seismic, fire, andexternal floods and high wind risk with respect to the proposed completion time andbypass time extensions in RG 1.177 Section 2.3.2, "Scope of the PRA for TSApplications."9. Provide a discussion on the following aspects of PRA quality as applicable to theVCSNS PRA.1.The plant-specific PRA reflects the as-built, as-operated plant.
2.Applicable PRA updates conducted since completion of individual plantexamination (IPE) and individual plant examination of external events (IPEEE)and the status of any improvements identified by the IPE and IPEEE.3.Reference PRA quality assurance programs/procedures, including expectedPRA revision schedules.4.PRA adequacy and completeness with respect to evaluating the proposed AOTand bypass time extensions with emphasis on Tier 3.5.Plant design or operational modifications not reflected in the WCAP-14333 PRAused in this application that are related to or could impact this licenseamendment application. Justify the acceptability of not including thesemodifications in the PRA as part of this application.10. RG 1.174 states that as part of the evaluation of risk, the cumulative risk of the presentTS change in light of past applications should be understood. Cumulative risks were not addressed by VCSNS. Provide an evaluation of the cumulative risk impact of previousTS changes (including WCAP-10271) per RG 1.174, Section 3.3.2, as applicable to theimplementation of WCAP-14333. 11.Regarding page 9 of 26 of the application, for the restriction listed under Tier 2 provide aprocedure reference that incorporates these changes. Are these restrictions consideredlicensee commitments? 12.Page 9 of 26 of the licensee's submittal states that the VCSNS Tier 3 requirements areaddressed through VCSNS Operations Administrative Procedures consistent with therequirements Title 10 of the Code of Federal Regulations (10 CFR), section 50.65(a)(4). Provide a discussion on the applicability of the VCSNS 10 CFR 50.65(a)(4) configurationrisk management program (CRMP) to the additions and clarifications provided in RG 1.177, Section 2.3.7.2, Key Components 1 through 4, for CRMP programs thatimplement section a(4) of 10 CFR 50.65(a)(4) and the guidance provided by RG 1.182,"Assessing and Managing Risk Before Maintenance Activities at Nuclear Power Plants." In addition, identify the programs and procedures in place to implement the CRMP atVCSNS.
Mr. Jeffrey B. ArchieVIRGIL C. SUMMER NUCLEAR STATIONSouth Carolina Electric & Gas Company cc:Mr. R. J. WhiteNuclear CoordinatorS.C. Public Service Authorityc/o Virgil C. Summer Nuclear StationPost Office Box 88, Mail Code 802Jenkinsville, South Carolina 29065Resident Inspector/Summer NPSc/o U.S. Nuclear Regulatory Commission576 Stairway RoadJenkinsville, South Carolina 29065Chairman, Fairfield County CouncilDrawer 60Winnsboro, South Carolina 29180Mr. Henry Porter, Assistant DirectorDivision of Waste ManagementBureau of Land & Waste Management Dept. of Health & Environmental Control2600 Bull StreetColumbia, South Carolina 29201Mr. Thomas D. Gatlin, General ManagerNuclear Plant OperationsSouth Carolina Electric & Gas CompanyVirgil C. Summer Nuclear StationPost Office Box 88, Mail Code 300Jenkinsville, South Carolina 29065Mr. Ronald B. Clary, ManagerNuclear LicensingSouth Carolina Electric & Gas CompanyVirgil C. Summer Nuclear StationPost Office Box 88, Mail Code 830 Jenkinsville, South Carolina 29065Ms. Kathryn M. Sutton, EsquireWinston & Strawn Law Firm1400 L Street, NWWashington, DC 20005-3502