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| Issue date | Title | Topic | |
|---|---|---|---|
| ML23256A088 | 25 September 2023 | Issuance of Alternative to Steam Generator Welds | Hydrostatic Probabilistic Risk Assessment Incorporated by reference Finite Element Analysis |
| ML23151A348 | 30 May 2023 | Duke Fleet - Request for Additional Information Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) | Incorporated by reference |
| ML23118A076 | 1 May 2023 | Approval for Use of Specific Provision of a Later Edition of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section XI | Incorporated by reference |
| RA-22-0257, Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) | 17 February 2023 | Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) | Weld Overlay Hydrostatic Finite Element Analysis Flow Accelerated Corrosion Stress corrosion cracking |
| ML22096A003 | 18 November 2022 | McGuire Nuclear Station and Shearon Harris Nuclear Power Plant Authorization of RA-19-0352 Regarding Use of Alternative for RPV Head Closure Stud Examinations | Aging Management Stress corrosion cracking License Renewal Subsequent License Renewal |
| ML22046A280 | 23 February 2022 | Relief from ASME Code Paragraph ISTP-3540(b) Related to High Pressure Injection Pumps Vibration Measurements | Incorporated by reference Scaffolding |
| ML22046A245 | 18 February 2022 | Regarding Alternative to Implement Code Case OMN-22, Smooth Running Pumps | Incorporated by reference |
| ML22028A365 | 7 February 2022 | Authorization and Safety Evaluation for Alternative Acceptance Criteria for Code Case N-853 | Weld Overlay Nondestructive Examination Incorporated by reference Stress corrosion cracking Dissimilar Metal Weld DM weld |
| ML21029A335 | 16 February 2021 | Request to Use a Provision of a Later Edition of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section XI | VT-2 Incorporated by reference |
| RA-20-0036, Request for Alternative to Defect Removal Prior to Performing Repair/Replacement Activities on Low Pressure Service Water (LPSW) System Piping | 2 March 2020 | Request for Alternative to Defect Removal Prior to Performing Repair/Replacement Activities on Low Pressure Service Water (LPSW) System Piping | Time of Discovery VT-2 Earthquake |
| ML20042D714 | 13 February 2020 | Relief Request 19-ON-002 for Proposed Alternative to Reactor Vessel Nozzle Weld Examination Frequency Requirements in ASME Code Case N-770-2 | |
| RA-19-0028, Submittal of Relief Request (19-ON-001) to Utilize Code Case N-853, PWR Class 1 Primary Piping Alloy 600 Full Penetration Branch Connection Weld Metal Buildup for Material Susceptible to Primary Water Stress | 21 March 2019 | Submittal of Relief Request (19-ON-001) to Utilize Code Case N-853, PWR Class 1 Primary Piping Alloy 600 Full Penetration Branch Connection Weld Metal Buildup for Material Susceptible to Primary Water Stress | Stress corrosion cracking Dissimilar Metal Weld |
| RA-19-0026, Response to Request for Additional Information (RAI) Regarding Proposed Alternative to the Depth Sizing Qualification Requirement of Appendix Viii, Supplements 2 and 10 (18-GO-001) | 11 February 2019 | Response to Request for Additional Information (RAI) Regarding Proposed Alternative to the Depth Sizing Qualification Requirement of Appendix Viii, Supplements 2 and 10 (18-GO-001) | |
| RA-18-0180, Supplement to Relief Request for an Alternative to the Depth Sizing Qualification Requirement of Appendix Viii, Supplements 2 | 12 November 2018 | Supplement to Relief Request for an Alternative to the Depth Sizing Qualification Requirement of Appendix Viii, Supplements 2 | Eddy Current Testing |
| ML17331A086 | 26 December 2017 | Alternative to Inservice Inspection Regarding Reactor Pressure Vessel Threads | Stress corrosion cracking Thermal fatigue |
| ML16118A230 | 30 April 2016 | Relief Request 14-ON-022 Alternative Requirements for Class 2 Residual Heat Removal Heat Exchange Welds | VT-2 Incorporated by reference Stress corrosion cracking Through-Wall Leak |
| ML16053A501 | 1 March 2016 | Relief Request ON-GRR-01 Grace Period for OM Code Frequencies (CAC Nos. MF7130, MF7131, and MF7132) | Power-Operated Valves Grace period |
| ML16004A181 | 7 January 2016 | Relief Request 14-ON-003 Alternative Requirements for Class 1 Category B-J Piping Welds | Nondestructive Examination Incorporated by reference Dissimilar Metal Weld |
| ML16004A262 | 7 January 2016 | Relief Request 15-ON-004: Limited Visual Examinations of the Reactor Pressure Vessel Support Skirt for the Fourth 10-Year Inservice Inspection Interval Program | Incorporated by reference |
| ML15349A453 | 29 December 2015 | Relief Request 15-ON-001 Repair of Low Pressure Service Water System Piping | Hydrostatic Nondestructive Examination VT-2 Through-Wall Leakage |
| ONS-2015-087, Fourth Ten-Year Inservice Inspection Plan, Relief Request No. 15-ON-003, Limited Volume Inspections from 3EOC27 Outage | 15 July 2015 | Fourth Ten-Year Inservice Inspection Plan, Relief Request No. 15-ON-003, Limited Volume Inspections from 3EOC27 Outage | VT-2 |
| ONS-2015-088, Fourth Ten-Year Inservice Inspection Plan, Relief Request No. 15-ON-004, Limited Visual Examinations from 1 EOC27, 2EOC26 and 3EOC27 Outages | 15 July 2015 | Fourth Ten-Year Inservice Inspection Plan, Relief Request No. 15-ON-004, Limited Visual Examinations from 1 EOC27, 2EOC26 and 3EOC27 Outages | Boric Acid High Radiation Area Hydrostatic |
| ML13365A023 | 17 January 2014 | Relief from the Requirements of the ASME Code for Fourth 10-Year Interval Inspection Program Request for Relief | Nondestructive Examination VT-2 Incorporated by reference Stress corrosion cracking Dissimilar Metal Weld Thermal fatigue |
| ML13066A100 | 27 February 2013 | End of Cycle (EOC) 27 Refueling Outage Steam Generator Inservice Inspection Report | |
| ML13045A290 | 15 February 2013 | Relief from the Requirements of the ASME OM Code | Scaffolding |
| ML13038A152 | 31 January 2013 | Fourth Ten-Year Inservice Inspection Plan, Request for Relief No. 12-ON-001 | VT-2 |
| ML13038A150 | 31 January 2013 | Fourth Ten-Year Inservice Inspection Plan Request for Relief No. 12-ON-002 | VT-2 |
| ML12173A312 | 18 June 2012 | Approval Request for the Fifth Ten-Year Inservice Test Program Interval Pump Specific Code Relief Request No. ON-SRP-HPI-03 | Scaffolding |
| ML12030A089 | 23 January 2012 | Duke Energy Carolinas - Relief Request Serial #09-GO-001 Request for NRC Clarification | Through-Wall Leakage |
| ML11143A059 | 21 June 2011 | Relief Request 10-ON-001 for Reactor Vessel Core Flood Nozzle Weld Examinations | VT-2 Incorporated by reference Stress corrosion cracking Through-Wall Leak |
| ML110660588 | 28 March 2011 | Relief Request (RR) Proposed Alternative for Certain Vibration Measurement Requirements RR (ON-SRP-HPI-03)) (TAC Nos. Me 3840, ME3841, ME3842, ME5790, ME5791, ME5792, ME5793, ME5794 and ME5795) | Scaffolding |
| ML101660473 | 9 June 2010 | Relief Request No. 10-ON-001, Alternative to Volumetric Examination Requirements for the Residual Heat Removal (RHR) Heat Exchanger Class 2 Nozzle-to-Shell Welds | VT-2 Through-Wall Leak Through-Wall Leakage |
| ML100880286 | 31 March 2010 | Relief Request 09-ON-003 for the Use of Full Structural Weld Overlay & Alternative Examination Techniques, for the Letdown Line, Reactor Vessel Core Flood & Reactor Coolant Pump Inlet & Outlet Nozzle Butt Welds. | Weld Overlay Hydrostatic Nondestructive Examination Incorporated by reference Stress corrosion cracking Liquid penetrant Dissimilar Metal Weld |
| ML100600698 | 3 March 2010 | Relief, Request 09 ON-005 for Reactor Vessel Core Flood Nozzle Weld Examinations (ME1846, ME1847, and ME1848) | Incorporated by reference Dissimilar Metal Weld DM weld |
| ML092740312 | 24 September 2009 | Relief Request from Immediate ASME Code Flaw Repair of Standby Shutdown Facility Auxiliary Service Water Piping | Safe Shutdown Loop seal Stroke time Tornado Missile Hydrostatic Probabilistic Risk Assessment Coatings Functionality Assessment Operability Determination Time Critical Operator Action Flow Induced Vibration Operational leakage |
| ML092150028 | 28 July 2009 | Fourth Ten Year Inservice Inspection Interval Request for Relief No. 09-ON-005 | Dissimilar Metal Weld |
| ML091470265 | 20 May 2009 | Request for Extension of Duke Response Time to Referenced Letter | |
| ML090830726 | 20 March 2009 | Fourth Ten Year Inservice Inspection Interval, Request for Relief No. 09-ON-003 | Weld Overlay Hydrostatic Nondestructive Examination Stress corrosion cracking Liquid penetrant Dissimilar Metal Weld |
| ML083360032 | 20 November 2008 | Summary Ultrasonic Examination Results of Completed | Weld Overlay DM weld |
| ML081020053 | 7 April 2008 | Relief Request No. 08-ON-003, from Immediate ASME Code Flaw Repair of Low Pressure Service Water Piping | Time of Discovery Through Wall Leak Operability Assessment Operational leakage |
| ML073460027 | 17 January 2008 | Relief Request to Use Preemptive Weld Overlay and Alternative Examination Techniques on Decay Heat Removal Line to Hotleg Nozzle Welds | Weld Overlay Hydrostatic Nondestructive Examination Incorporated by reference Stress corrosion cracking Liquid penetrant Dissimilar Metal Weld |
| ML071560510 | 29 May 2007 | Fourth Ten Year Inservice Inspection Interval Request for Relief No. 04-ON-007, Revision 1 | Finite Element Analysis |
| ML071230090 | 27 April 2007 | Part 21 Interim Report, Dresser Investigation File No. 2007-02, Interim Reporting of a Potential Defect Involving Power Actuated Pressure Relief Valves Supplied to Calvert Cliffs, Fort Calhoun and Oconee Plants | |
| ML062620234 | 11 September 2006 | Relief Request 06-ON-004 Request for Additional Information | Weld Overlay Hydrostatic Nondestructive Examination Dissimilar Metal Weld |
| ML062290264 | 9 August 2006 | Response to Request for Additional Information Request for Relief No. 05-ON-004 | VT-2 |
| ML061940016 | 6 July 2006 | Replacement of Steam Generators Request for Relief No. 04-ON-007, Rev. 1 | Finite Element Analysis |
| ML060930248 | 4 May 2006 | Relief Request 05-ON-003 | Nondestructive Examination Liquid penetrant |
| ML060830291 | 17 April 2006 | Relief, Volumetric Examination of Essentially 100 Percent of the Volume as Required by the ASME, Boiler and Pressure Vessel Code, Section XI, for Class 1 and 2 Welds | Non-Destructive Examination VT-2 Incorporated by reference |
| ML060830105 | 14 April 2006 | SE MC5483 and MC5483, Relief Request RR-04-ON-013 | Hydrostatic VT-2 Incorporated by reference |
| ML053630231 | 13 March 2006 | Relief Request MC8852, Repair of Steam Generator Tubes | Incorporated by reference Stress corrosion cracking |