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| Issue date | Title | Topic | |
|---|---|---|---|
| ML22245A001 | 12 September 2022 | Relief from the Requirements of the ASME Code | Probabilistic Risk Assessment Nondestructive Examination VT-2 Incorporated by reference Large early release frequency Liquid penetrant Pressure Boundary Leakage Dissimilar Metal Weld |
| ML20227A385 | 3 September 2020 | Nonproprietary - Proposed Alternative RR-ENG-3-24 to ASME Code Requirements for the Repair of Essential Cooling Water System Class 3 Buried Piping | Finite Element Analysis Biofouling |
| NOC-AE-20003702, Proposed Alternatives to ASME OM Code 2012 Edition for the Fourth Inservice Test Interval (Relief Request PRR-03) | 22 January 2020 | Proposed Alternatives to ASME OM Code 2012 Edition for the Fourth Inservice Test Interval (Relief Request PRR-03) | |
| ML19142A307 | 13 August 2019 | Request for Relief Request RR-ENG-3-23 to Extend Volumetric Examination Interval for Reactor Vessel Closure Head Nozzles | Boric Acid Incorporated by reference |
| NOC-AE-19003620, Proposed Alternative for Extension of Volumetric Examination Interval for Reactor Vessel Closure Head with Alloy 690 Nozzles in Accordance with 10 CFR 50.55a(z)(1) (Relief Request RR-ENG-3-23) | 28 February 2019 | Proposed Alternative for Extension of Volumetric Examination Interval for Reactor Vessel Closure Head with Alloy 690 Nozzles in Accordance with 10 CFR 50.55a(z)(1) (Relief Request RR-ENG-3-23) | Boric Acid Reactor Vessel Water Level VT-2 |
| ML18303A206 | 7 November 2018 | Request for Relief from ASME Code to Extend the Inservice Inspection Interval for Category B-N-2 and B-N-3 Examinations | Incorporated by reference |
| NOC-AE-18003598, Response to Request for Additional Information Request for Relief from the Third 10-Year Interval ISI Program ASME Section Xl Code Requirements for Category B-N-2 and B-N-3 Welds (Relief Request RR-ENG-3-16) | 26 September 2018 | Response to Request for Additional Information Request for Relief from the Third 10-Year Interval ISI Program ASME Section Xl Code Requirements for Category B-N-2 and B-N-3 Welds (Relief Request RR-ENG-3-16) | |
| ML18177A425 | 24 July 2018 | Relief from the Requirements of the Asme Code Regarding the Third 10-Year Inservice Inspection Interval | Probabilistic Risk Assessment |
| ML18187A149 | 24 July 2018 | Relief Request RR-ENG-3-22 for the Use of Encoded Phased Array Ultrasonic Examination Techniques in Lieu of Radiography | Dissimilar Metal Weld |
| NOC-AE-18003578, Request for Relief from the Third 10-Year Interval ISI Program ASME Section Xl Code Requirements for Category B-N-2 and B-N-3 Welds (Relief Request RR-ENG-3-16) | 25 June 2018 | Request for Relief from the Third 10-Year Interval ISI Program ASME Section Xl Code Requirements for Category B-N-2 and B-N-3 Welds (Relief Request RR-ENG-3-16) | |
| NOC-AE-18003547, Proposed Alternative to Reactor Vessel Inservice Inspection Intervals (Relief Request RR-ENG-3-14) | 15 February 2018 | Proposed Alternative to Reactor Vessel Inservice Inspection Intervals (Relief Request RR-ENG-3-14) | Probabilistic Risk Assessment |
| ML16174A091 | 30 June 2016 | Relief Request RR-ENG-3-20, Use of ASME Code Case N-770-1, Reactor Vessel Cold Leg Nozzle to Safe-End Welds with Flaw Analysis, for the Third 10-Year Inservice Inspection Interval | Incorporated by reference Finite Element Analysis Dissimilar Metal Weld DM weld |
| ML15218A367 | 21 August 2015 | Relief Request RR-ENG-17, Relief from Code Case N-770-1, Subsection 2400 and Table 1 Inspection Frequency of Reactor Vessel Cold Leg Nozzle to Safe-End Welds with Flaw Analysis, Third 10-Year ISI Interval | Finite Element Analysis Dissimilar Metal Weld |
| ML13102A126 | 23 April 2013 | Withdrawal of Relief Request RR-ENG-3-12 from ASME Code Requirements for Periodic Inspection of Reactor Coolant Pressure Boundary Check Valve with Seal Cap, Third 10-year Inservice Inspection Interval | |
| ML13087A517 | 12 April 2013 | Relief Request RR-ENG-3-09, Request for Relief from ASME Code Requirements; Deferral of Code Repair of Essential Cooling Water System Piping Until April 2013 Refueling Outage | Time of Discovery Mission time Probabilistic Risk Assessment VT-2 Through-Wall Leak |
| ML13004A339 | 12 March 2013 | Relief Request RR-ENG-3-10, Reactor Pressure Vessel Head Flange O-Ring Leakoff Lines Non-Destructive Examination, for the Third 10-Year Inservice Inspection Interval | Boric Acid Hydrostatic Nondestructive Examination VT-2 Pressure Boundary Leakage Through-Wall Leak |
| NOC-AE-12002939, Request for Relief from ASME Section XI Code Requirements for Periodic Inspection of Reactor Coolant Pressure Boundary Check Valves with Seal Cap Enclosures (Relief Request RR-ENG-3-12) | 7 February 2013 | Request for Relief from ASME Section XI Code Requirements for Periodic Inspection of Reactor Coolant Pressure Boundary Check Valves with Seal Cap Enclosures (Relief Request RR-ENG-3-12) | Boric Acid VT-2 Pressure Boundary Leakage |
| NOC-AE-12002956, Response to Request for Additional Information Regarding Relief Request RR-ENG-3-09 for the Essential Cooling Water System | 31 January 2013 | Response to Request for Additional Information Regarding Relief Request RR-ENG-3-09 for the Essential Cooling Water System | Safe Shutdown Earthquake Operating Basis Earthquake Earthquake |
| ML12243A343 | 10 September 2012 | RR RE-ENG-3-04 to Apply Alternative to the American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI Requirements for Examination of Class 1 and 2 Piping Welds | High winds Probabilistic Risk Assessment Nondestructive Examination Incorporated by reference Large early release frequency Exemption Request Dissimilar Metal Weld |
| ML12235A347 | 28 August 2012 | Relief Request RR-ENG-3-06 from ASME Code Requirements for Leak Testing Boundaries of Class 1 Pressure-Retaining Components, Third 10-Year Inservice Inspection Interval (TAC ME7053-ME7054) | Boric Acid High Radiation Area Hydrostatic VT-2 Incorporated by reference |
| ML12201A256 | 16 August 2012 | Relief Request RR-ENG-3-08, Deferral of Code Repair of Flaws in U2 Essential Cooling Water Class 3 Piping Until Restart from Current Refueling Outage Scheduled for Mid-April 2012 | Time of Discovery Safe Shutdown Earthquake Operating Basis Earthquake VT-2 Through-Wall Leak |
| NOC-AE-12002837, Response to Request for Additional Information: Application of an Alternative to Requirements for Examination of Class 1 and Class 2 Piping Welds (Relief Request RR-ENG-3-04) | 9 May 2012 | Response to Request for Additional Information: Application of an Alternative to Requirements for Examination of Class 1 and Class 2 Piping Welds (Relief Request RR-ENG-3-04) | Probabilistic Risk Assessment |
| NOC-AE-12002807, Request for Relief from ASME Boiler and Pressure Vessel Code, Section XI Requirements for the Essential Cooling Water System (Relief Request RR-ENG-3-08) | 12 March 2012 | Request for Relief from ASME Boiler and Pressure Vessel Code, Section XI Requirements for the Essential Cooling Water System (Relief Request RR-ENG-3-08) | Time of Discovery Mission time VT-2 Earthquake Through-Wall Leak |
| ML111860535 | 29 July 2011 | Relief Request RR-ENG-2-55 from ASME Code Requirements for Weld Examinations, Second 10-Year Inservice Inspection Interval | Weld Overlay Nondestructive Examination VT-2 Incorporated by reference Liquid penetrant |
| ML110980347 | 20 April 2011 | Relief Request RR-ENG-3-01, from ASME Code Requirements for Steam Generator Main Steam Nozzle Non-Destructive Examination, Third 10-Year Inservice Inspection Interval | Nondestructive Examination Incorporated by reference |
| ML110810948 | 7 April 2011 | Request for Relief RR-ENG-3-03 from ASME Code Requirements for Pump Casing Inservice Inspection Examination, Third 10-Year Inservice Inspection Interval | Incorporated by reference |
| ML110840076 | 5 April 2011 | Request for Relief RR-ENG-3-02 from ASME Code Requirements for Reactor Pressure Vessel Flange Insert Non-Destructive Examination, Third 10-Year Inservice Inspection Interval | Non-Destructive Examination Incorporated by reference |
| NOC-AE-10002600, Request for Relief from ASME Section XI Requirements for Ultrasonic Examination of Reactor Pressure Vessel Shell-to-Flange Welds (RR-ENG-3-05) | 18 October 2010 | Request for Relief from ASME Section XI Requirements for Ultrasonic Examination of Reactor Pressure Vessel Shell-to-Flange Welds (RR-ENG-3-05) | |
| NOC-AE-10002594, Request for Relief from ASME Section XI Code Requirements for Pump Casing Inservice Inspection Examination (Relief Request RR-ENG-3-03) | 20 September 2010 | Request for Relief from ASME Section XI Code Requirements for Pump Casing Inservice Inspection Examination (Relief Request RR-ENG-3-03) | Nondestructive Examination |
| ML102150077 | 2 September 2010 | Relief Request Nos. VRR-01, PRR-03, PRR-02, and PRR-01 for Third 10-year Interval Inservice Testing Program for Pumps and Valves (TAC Nos. ME3515 Through ME3522) | Stroke time Probabilistic Risk Assessment Large early release frequency |
| ML100620869 | 24 March 2010 | Authorization of Relief Request RR-ENG-2-53, Alternative to Inservice Inspection Requirements for Ultrasonic Exam of Reactor Pressure Vessel Shell-to-Flange Weld | Incorporated by reference |
| ML100539588 | 12 March 2010 | Relief Request RR-ENG-2-52 from ASME Code, Section XI Requirements for Essential Cooling Water System Code Repair | Safe Shutdown Time of Discovery Mission time VT-2 Incorporated by reference |
| NOC-AE-09002399, Request for Relief from ASME Boiler and Pressure Vessel Code Section XI Requirements for the Essential Cooling Water System (Relief Request RR-ENG-2-52) | 12 March 2009 | Request for Relief from ASME Boiler and Pressure Vessel Code Section XI Requirements for the Essential Cooling Water System (Relief Request RR-ENG-2-52) | Safe Shutdown Time of Discovery Mission time VT-2 Through-Wall Leak |
| ML082750220 | 9 December 2008 | Relief Request RR-ENG-2-30, Request for Relief to Use ASME Code Case N-516-3, Underwater Welding, Section XI, Division 1 | Incorporated by reference |
| ML082770785 | 12 November 2008 | Authorization of Relief Request RR-ENG-2-51 from ASME Code Case N-498-4, on 10-Year System Hydrostatic Testing for Class 1, 2, and 3 Systems | Hydrostatic VT-2 Incorporated by reference |
| ML082490160 | 26 September 2008 | Relief Request RR-ENG-2-49, Second 10-Year Inservice Inspection Interval, Deferral of Code Repair in the Essential Cooling Water System Piping | Safe Shutdown Time of Discovery VT-2 Through-Wall Leak |
| ML073541072 | 10 January 2008 | Request for Relief No. RR-ENG-2-48 from ASME Code Case N-638-1 Requirements Regarding Start Time for 48-Hour Hold Period Before Non-Destructive Examination of Weld Overlay Repair | Non-Destructive Examination Weld Overlay Nondestructive Examination Incorporated by reference |
| ML073120446 | 30 November 2007 | Relief Request RR-ENG-2-47 for Approval of Temporary Non-code Repair and Deferral of Code Repair Upgraded Essential Cooling Water System Piping | Time of Discovery VT-2 |
| NOC-AE-07002211, Relief Request (RR-ENG-2-50) for the Second 10 Year ISI Interval from 10 CFR 50.55a for the Purpose of Invoking Code Case N-698, Design Stress Intensities and Yield Strength Values For... | 2 October 2007 | Relief Request (RR-ENG-2-50) for the Second 10 Year ISI Interval from 10 CFR 50.55a for the Purpose of Invoking Code Case N-698, Design Stress Intensities and Yield Strength Values For... | |
| ML070851008 | 30 April 2007 | Relief Request No. RR-ENG-2-44 on Deferral of Code Repair of Essential Cooling Water System Indication | Incorporated by reference |
| ML070810264 | 2 April 2007 | Relief, Request for Relief No. RR-ENG-2-43 for Remainder of Second 10-year Inservice Inspection Interval Application of Weld Overlays in Pressurizer Nozzle Safe End Welds (TAC Nos. MD1414 - MD1423) | Weld Overlay Hydrostatic Nondestructive Examination Incorporated by reference Dissimilar Metal Weld |
| ML070650075 | 15 March 2007 | Request to Use 2001 Edition Through 2003 Addenda of ASME Code for Operations and Maintenance for Remainder of Second 10-Year Inservice Testing Program Interval | Incorporated by reference |
| ML070440059 | 1 March 2007 | Request for Relief No. RR-ENG-2-45 for Remainder of Second 10-year Inservice Inspection Interval Use of Penetrameters in Radiography Examination | Hydrostatic Nondestructive Examination |
| ML062230309 | 26 October 2006 | Response to Relief Request RR-ENG-2-42 for Approval Non-Code Repair and Deferral of Code Repair of Essential Cooling Water System Piping, TAC MC8804 | Time of Discovery VT-2 |
| NOC-AE-06002031, Request for Relief from ASME Boiler and Pressure Vessel Code, Section XI Requirements for Use of Penetrameters in Radiographic Examinations | 14 June 2006 | Request for Relief from ASME Boiler and Pressure Vessel Code, Section XI Requirements for Use of Penetrameters in Radiographic Examinations | Non-Destructive Examination Hydrostatic Nondestructive Examination |
| ML061090754 | 25 May 2006 | Relief, Relief Request RR-ENG-2-39 and RR-ENG-2-40 for Approval of Temporary Non-code Repair and Deferral of Code Repair of Essential Cooling Water System Piping, Trains 1B and 1C | Mission time Coatings Nondestructive Examination VT-2 |
| ML060970240 | 12 May 2006 | Relief, RR-ENG-2-41 TAC No. MC8279 | Mission time Coatings Nondestructive Examination VT-2 |
| NOC-AE-05001899, Request for Relief from ASME Boiler and Pressure Vessel Code, Section Xl Requirements for the Essential Cooling Water System (Ecw Train 1 C) (Relief Request RR-ENG-2-40) | 19 July 2005 | Request for Relief from ASME Boiler and Pressure Vessel Code, Section Xl Requirements for the Essential Cooling Water System (Ecw Train 1 C) (Relief Request RR-ENG-2-40) | Mission time Coatings Nondestructive Examination VT-2 |
| ML050620505 | 15 March 2005 | Request for Relief from Requirements of ASME and Pressure Vessel Code RR-ENG-IWE-07 | |
| NOC-AE-04001817, Revised Request for Authorization to Use an Alternative to the ASME Boiler and Pressure Vessel Code Section XI Requirements (Relief Request VRR-05) | 9 November 2004 | Revised Request for Authorization to Use an Alternative to the ASME Boiler and Pressure Vessel Code Section XI Requirements (Relief Request VRR-05) | Packing leak Stroke time Power-Operated Valves |