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 Issue dateTitleTopic
ML21264A53321 September 2021PWR Owners Group - Transmittal of the NRC Approved Version of Topical Report, PWROG-19047-P-A/NP-A, Revision 0, North Anna Units 1 and 2 Reactor Vessels Low Upper-Shelf Fracture Toughness Equivalent Margin Analysis, PA-MSC-1481
ML21180A41622 June 2021PWR Owners Group, Comments on the NRC Draft Safety Evaluation for PWROG-19047-P/NP, Revision 0, North Anna Units 1 and 2 Reactor Vessels Low Upper-Shelf Fracture Toughness Equivalent Margin Analysis (PA-MSC-1481)
ML20192A24915 July 2020Nonprop Final SE Cover Letter for PWROG-17018 LCF 7-10
ML20149K66827 May 2020PWR Owners Group, Submittal of PWROG-19047-P/NP, Revision 0, North Anna, Units 1 and 2, Reactor Vessels Low Upper-Shelf Fracture Toughness, Equivalent Margin Analysis (PA-MSC-1481)
ML20134M35626 May 2020Final Safety Evaluation by the Office of Nuclear Reactor Regulation Topical Report PWROG-18034-P, Revision 0, Updates to the Methodology for Evaluating the Acceptability of Baffle-Former-Barrel Bolting Distributions Under Faulted Load Condi
ML20133P69315 May 2020U.S. Nuclear Regulatory Commission Verification Letter for the Pressurized Water Reactor Owners Group Topical Report PWROG-17034, Revision 0, Evaluation of the WCAP-10325-P-A Westinghouse LOCA Mass & Energy Release Methodology
ML20090A01930 March 2020U.S. Nuclear Regulatory Commission Verification Letter for the Pressurized Water Reactor Owner'S Group Topical Report PWROG-17090-NP, Revision 0, Generic Rotterdam Forging and Weld Initial Upper-Shelf Energy Determination,
ML20085F60330 March 2020Final Cover Letter Safety Evaluation by the Office of Nuclear Reactor Regulation for the Pressurized Water Reactor Owners Group Topical Report PWROG-17031-NP, Revision 1
ML20028D71424 February 2020U.S. Nuclear Regulatory Commission Verification Letter for the Pressurized Water Reactor Owners Group Topical Report PWROG-17033, Revision 1
ML19346F89019 December 2019Cover Letter by the Office of Nuclear Reactor Regulation Topical Report for PWROG-18034-P, Revision 0, Updates to the Methodology in WCAP-15029-P-A, Rev 1, Westinghouse Methodology for Evaluating the Acceptability of Baffle-Former-Barrel Bo
ML19301D06331 October 2019Cover Letter for the Final Safety Evaluation for the Topical Report PWROG-15109-NP, Revision 0, PWR Pressure Vessel Nozzle Appendix G Evaluation,Anticipated operational occurrence
Hydrostatic
ML19300A00129 October 2019Cover Letter for Draft SE for Topical Report PWROG-17031-NP, Revision 1, Update for Subsequent License Renewal: WCAP-15338-A, a Review of Cracking Associated with Weld Deposited Cladding in Operating PWR Plants
ML18192B6179 October 2019Verification Letter of the Approval Versions of the Pressured Water Reactor Owners Group Topical Report BAW-1543, Revision 4, Supplement 7-A Supplement to the Master Integrated Reactor Vessel Surveillances Program
ML19198A05111 September 2019Final Safety Evaluation for Pressurized Water Reactor Owners Group Topical Report PWROG-17011-NP, Revision 1 Report, Update for Subsequent License Renewal: WCAP-14535A, 'Topical Report on Reactor Coolant Pump Flywheel Inspection Elimination
ML19226A25911 September 2019Draft Safety Evaluation for Pressurized Water Reactor Owners Group Topical Report PWROG-17090-NP, Revision 0 Generic Rotterdam Forging and Weld Initial Upper-Shelf Energy Determination Pressurized Water Reactor Owners Group Westinghouse Ele
ML19225D17923 August 2019Verification Letter of the Approval Version of the Pressurized Water Reactor Owners Group Topical Report WCAP-17661, Revision 1, Improved RAOC and CAOC Fq Surveillance Technical
ML19158A26625 June 2019Draft Safety Evaluation by the Office of Nuclear Reactor Regulation for Topical Report PWROG-15109-NP, Revision 0, PWR Pressure Vessel Nozzle Appendix G EvaluationAnticipated operational occurrence
Hydrostatic
ML19106A19629 April 2019Letter - Final Safety Evaluations for Baw 2192, Supplement 1NP, Revision 0, and Baw 2178, Supplement 1NP, Revision 0
ML19073A21626 March 2019Acceptance for Review of the Pressurized Water Reactor Owners Group Topical Report PWROG-18034-P and PWROG-18034-NP, Revision 0, Updates to the Methodology in WCAP-15029-P-A, Rev. 1
ML19072A10319 March 2019Cover Letter for Draft Safety Evaluation for Topical Report, PWROG-17011
ML18333A1247 December 2018Transmittal Letter Regarding Final Safety Evaluation for BAW-2192, Supplement 1, Revision 0, and BAW-2178, Supplement 1, Revision 0
ML18311A29730 November 2018Staff Re-Evaluation of Closure Path for Generic Safety Issue 191 and Generic Letter 2004-02
ML18236A3785 September 2018Transmittal Letter Regarding Draft Safety Evaluation for Topical Report BAW-2192, Supplement 1, Revision 0, and Topical Report BAW-2178, Supplement 1, Revision 0
ML18186A62522 August 2018Transmittal Letter Regarding Draft SE for Pressurized Water Reactor Owners Group Topical Report PWROG-16043-P, Revision 2
ML18191B30312 July 2018Regulatory Audit Plan for June 26-29, 2018, Audit of Changes to Thermal Hydraulic Methodologies in Responses to Request for Additional Information for Topical Report WCAP-17788-P Comprehensive Analysis and Test Program for GSI-191 Closure
ML18170A11314 June 2018PWR Owners Group - Transmittal of PWROG-17033-P (&Np), Revision 1, Update for Subsequent License Renewal: WCAP-13045, Compliance to ASME Code Case N-481 of the Primary Loop Pump Casings of Westinghouse Type Nuclear Steam Supply Systems
ML18116A03112 June 2018Acceptance for Review of the Pressurized Water Reactor Owners Group Topical Report PWROG-17090-NP, Revision 0, Generic Rotterdam Forging and Weld Initial Upper-Shelf Energy Determination
ML18143B49615 May 2018PWR Owners Group Transmittal of PWROG-17011-NP, Rev 1, Update for Subsequent License Renewal: WCAP-14535A, Topical Report on Reactor Coolant Pump Flywheel Inspection Elimination and WCAP-15666-A, Extension of Reactor Coolant Pump Motor FlywLiquid penetrant
ML18116A0309 May 2018Acceptance for Review of the Pressurized Water Reactor Owners Group Topical Report PWROG-15109-NP, Revision 0, PWR Pressure Vessel Nozzle Appendix G Evaluation
ML18116A0299 May 2018Acceptance for Review of the Pressured Water Reactor Owners Group Topical Report PWROG-17034-P Revision 0, Evaluation of the WCAP-10325-P-A Westinghouse LOCA Mass & Energy Release Methodology
ML18081A00724 April 2018Letter for Draft Safety Evaluation for Pressurized Water Reactor Owners Group Topical Report WCAP-17661, Improved RAOC and CAOC Fq Surveillance Technical Specifications
ML18038A34727 March 2018Transmittal Letter for Final Safety Evaluation for Pressurized Water Reactor Owners Group Topical Report BAW-1543, Revision 4, Supplement 7
ML18057A08013 March 2018Acceptance for Review of the Pressurized Water Reactor Owners Group Topical Report PWROG-17018-PINP, Solid State Protection System General Warning Alarm Modification.
ML18043A56512 March 2018Requests for Withholding Information from Public Disclosure the March 17, 2017, Pressurized Water Reactor Owners Group, Submission
ML18043A50812 March 2018Requests for Withholding Information from Public Disclosure the December 11, 2017, Pressurized Water Reactor Owners Group, Submission
ML18044A3287 March 2018Requests for Withholding Information from Public Disclosure the January 2, 2014, Pressurized Water Reactor Owners Group (Pwrog), Submission
ML18044A2247 March 2018Requests for Withholding Information from Public Disclosure the December 11, 2017, Pressurize Water Reactor Owners Group (Pwrog), Submission
ML18044A0657 March 2018Requests for Withholding Information from Public Disclosure the October 19, 2017, Pressurized Water Reactor Owners Group (Pwrog), Submission
ML18044A0477 March 2018Requests for Withholding Information from Public Disclosure the February 1, 2018, Pressurized Water Reactor Owners Group (Pwrog), Submission
ML18053A1546 March 2018Acceptance for Review of the Pressurized Water Reactor Owners Group Topical Report BAW-2192-P, Supplement 1, Revision 0, Low Upper-Shelf Toughness Fracture Mechanics Analysis of Reactor Vessels of B&W Owners Reactor Vessel Working Group for
ML18053A1496 March 2018Acceptance for Review of the Pressurized Water Reactor Owners Group Topical Report BAW-2178-P, Supplement 1, Revision 0, Low Upper-Shelf Toughness Fracture Mechanics Analysis of Reactor Vessel of B&W Owners Reactor Vessel Working Group for
ML18022A1376 February 2018Verification Letter of the Approval Version of the Pressurized Water Reactor Owners Group Topical Report PWROG-14001-P, Revision 1, PRA Model for the Generation III Westinghouse Shutdown Seal
ML18029A20319 December 2017PWR Owners Group - Submittal of Responses to NRC Requests for Additional Information and Revisions to Topical Report WCAP-17788-P/WCAP-17788-NP, Revision 0, Comprehensive Analysis and Test Program for GS1-191 Closure Related to Volumes 1 an
ML07155022525 May 2007PWR Owners Group - Draft Revisions to Topical Report WCAP-15791 Revision 1, Risk-Informed Evaluation of Extensions to Containment Isolation Valve Completion Times, and the Final Safety Evaluation, MUHP-3010/LSC-0029/LSC-0135
ML04300015520 October 2004Westinghouse Owners Group - Comparison of Crossflow and ASME Flow Section Feedwater Flow Measurement at Kewaunee Nuclear Power Plant
ML04239021420 August 2004Westinghouse Owners Group Request to Withdraw WCAP-16168-NP, Risk-Informed Extension of Reactor Vessel In-Service Inspection Interval, (PA-MSC-0120)
ML04048030930 January 2004WOG CE Fleet Pressurizer Heater Sleeve Inspection Program. Includes Attachment 1 - Scheduled Refueling Outages for Plants in the CE FleetNondestructive Examination
ML03323022512 November 2003Submittal of WCAP-16084-NP, Development of Risk-Informed Safety Analysis Approach and Pilot Application.Anticipated operational occurrence
Probabilistic Risk Assessment
Fuel cladding
Coast down
ML03077050412 March 2003Request for Review of TSTF-421, Rev. 0 (MUHP-3043)
ML02338053627 November 2002Transmittal of RAI Responses for WCAP-15622, Risk-Informed Evaluation of Extensions to AC Electrical Power System Completion Times (MUHP-3010)Ultimate heat sink
Mission time
Probabilistic Risk Assessment
Large early release frequency
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