ASME Code Case N-722-1

	Issue date	Site	Title	Topic
ML24298A020	24 October 2024	Byron Braidwood	NRR E-mail Capture - Braidwood Station, Units 1 and 2, Byron Station, Units 1 and 2, Relief Request I4R-19 and I4-26, Associated with the Fourth and Fifth Inservice Inspection Intervals
RS-24-095, Relief Request I4R-19 and I4R-26, Associated with the Fourth and Fifth Inservice Inspection Intervals	10 October 2024	Byron Braidwood	Relief Request I4R-19 and I4R-26, Associated with the Fourth and Fifth Inservice Inspection Intervals	VT-2 Affidavit
ML24190A041	5 July 2024	Summer	Notification of Inspection and Request for Information	Boric Acid Non-Destructive Examination Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML24190A046	5 July 2024	Oconee	Notification of Inspection and Request for Information	Boric Acid Non-Destructive Examination Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML23324A430	20 November 2023	Millstone	Alloy 600 Aging Management Program Submittal Related to License Renewal Commitment 15	Boric Acid Weld Overlay Nondestructive Examination Aging Management Stress corrosion cracking License Renewal Liquid penetrant Dissimilar Metal Weld
ML23208A095	28 August 2023	Point Beach	Issuance of Amendment Nos. 273 and 275 Regarding Revising Licensing Basis to Address Generic Safety Issue-191 and Respond to Generic Letter 2004-02 Using a Risk Informed Approach	Boric Acid High winds Mission time Safe Shutdown Earthquake Internal Flooding Probabilistic Risk Assessment Coatings Temporary Modification Finite Element Analysis FLEX Large early release frequency Stress corrosion cracking Exemption Request Earthquake Maintenance Rule Program Turbine Missile Fuel cladding Core Exit Thermocouple Water hammer
ML23032A318	31 July 2023		Rulemaking - Proposed Rule - Unofficial Redline of Proposed Rule Language for American Society of Mechanical Engineers 2021-2022 Code Editions Update	Safe Shutdown Stroke time Weld Overlay Hydrostatic Coatings Nondestructive Examination VT-2 Incorporated by reference Finite Element Analysis Flow Accelerated Corrosion Large early release frequency Stress corrosion cracking Moisture barrier Earthquake Power-Operated Valves Dissimilar Metal Weld Weak link
ML23193A877	28 June 2023	Millstone	1 to Updated Final Safety Analysis Report, Chapter 15, License Renewal	Boric Acid Fire Barrier Coatings Aging Management Flow Accelerated Corrosion Feedwater Heater Stress corrosion cracking License Renewal Biofouling Fire Protection Program Dissimilar Metal Weld Overspeed Operational leakage
ML23139A147	5 June 2023	Salem	Relief Request Associated with Fourth Interval In-service Inspection Limited Examinations of Weld Coverage	Nondestructive Examination VT-2 Incorporated by reference Stress corrosion cracking Pressure Boundary Leakage Through-Wall Leak Dissimilar Metal Weld Unidentified leakage Thermal fatigue
RA-23-0018, Relief Request (RA-23-0018) 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 Corrosion Cracking Section XI, Division 1	4 May 2023	Oconee	Relief Request (RA-23-0018) 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 Corrosion Cracking Section XI, Division 1	Weld Overlay Nondestructive Examination Incorporated by reference Stress corrosion cracking Dissimilar Metal Weld
L-2023-009, Owners Activity Report	31 January 2023	Saint Lucie	Owners Activity Report
ML22300A220	27 October 2022	Summer	(VCSNS) Unit 1, Alternative Request Rr-4-26 Application for Alternative Request - Extension of Steam Generator Primary Inlet Nozzle Dissimilar Metal Weld Inspection Interval (Volumetric Examination) RAI	Boric Acid Stress corrosion cracking Dissimilar Metal Weld Unidentified leakage Unidentified leak Operational leakage
ML22193A076	23 June 2022	Millstone	0 to Updated Final Safety Analysis Report, Chapter 15, License Renewal	Boric Acid Fire Barrier Coatings Aging Management Flow Accelerated Corrosion Feedwater Heater Stress corrosion cracking License Renewal Biofouling Fire Protection Program Dissimilar Metal Weld Overspeed Operational leakage
ULNRC-06690, Enclosure 5: Callaway, Unit 1, LAR Supplement to Address Audit Discussion Points Summarized in NRC Letter Dated September 14, 2021 (ML21238A138)	27 January 2022	Callaway	Enclosure 5: Callaway, Unit 1, LAR Supplement to Address Audit Discussion Points Summarized in NRC Letter Dated September 14, 2021 (ML21238A138)	Unanalyzed Condition Boric Acid Time of Discovery High winds Non-Destructive Examination Mission time Weld Overlay Internal Flooding Probabilistic Risk Assessment Coatings Nondestructive Examination Incorporated by reference High Energy Line Break Aging Management Surveillance Frequency Control Program Foreign Material Exclusion Flow Accelerated Corrosion Large early release frequency Stress corrosion cracking License Renewal Exemption Request Dissimilar Metal Weld Scaffolding Unidentified leakage Affidavit Operational leakage Thermal fatigue Water hammer
SBK-L-21126, Fourth 10 Year Interval - Inservice Inspection (ISI) Program Plan	4 January 2022	Seabrook	Fourth 10 Year Interval - Inservice Inspection (ISI) Program Plan	Non-Destructive Examination Weld Overlay Hydrostatic Nondestructive Examination VT-2 Incorporated by reference High Energy Line Break Aging Management Stress corrosion cracking Eddy Current Testing License Renewal Liquid penetrant Dissimilar Metal Weld Scaffolding Flow Induced Vibration Operability Assessment Thermal fatigue Water hammer
ET 21-0005, Operating Corp., License Amendment Request for a Risk-Informed Resolution to GSI-191	12 August 2021	Wolf Creek	Operating Corp., License Amendment Request for a Risk-Informed Resolution to GSI-191	Safe Shutdown Boric Acid High winds Reactor Vessel Water Level Mission time Fire Barrier Safe Shutdown Earthquake Internal Flooding Probabilistic Risk Assessment Coatings Operating Basis Earthquake FLEX High Energy Line Break Foreign Material Exclusion Large early release frequency Stress corrosion cracking Operability Determination Severe Accident Management Guideline Exemption Request Earthquake Maintenance Rule Program Fuel cladding Scaffolding Core Exit Thermocouple Manual Operator Action Operational leakage Water hammer
ML21197A043	15 July 2021	Summer	VCS ISI 2021004 RFI - Combined	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML21197A042	15 July 2021	Vogtle	Vog U1 Isi/Sgisi Request for Information (RFI) Letter	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML21197A045	15 July 2021	Watts Bar	WBN U1 Isi/Sgisi Request for Information (RFI) Letter	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML21144A109	20 May 2021	South Texas	Inservice Inspection Program Plan and Inservice Testing Program Snubber Inservice Test Plan for the Fourth Ten-Year Interval	Safe Shutdown Boric Acid Non-Destructive Examination Weld Overlay Coatings Nondestructive Examination VT-2 Incorporated by reference Aging Management Abnormal operational transient Surveillance Frequency Control Program Stress corrosion cracking Moisture barrier License Renewal Control of Heavy Loads EVT-1 Pressure Boundary Leakage Dissimilar Metal Weld Core Exit Thermocouple Operability Assessment Thermal fatigue Water hammer
NOC-AE-21003806, Inservice Inspection Program Plan and Inservice Testing Program Snubber Inservice Test Plan for the Fourth Ten-Year Interval	20 May 2021	South Texas	Inservice Inspection Program Plan and Inservice Testing Program Snubber Inservice Test Plan for the Fourth Ten-Year Interval	Safe Shutdown Boric Acid Non-Destructive Examination Weld Overlay Coatings Nondestructive Examination VT-2 Incorporated by reference Aging Management Abnormal operational transient Surveillance Frequency Control Program Stress corrosion cracking Moisture barrier License Renewal Control of Heavy Loads EVT-1 Pressure Boundary Leakage Dissimilar Metal Weld Core Exit Thermocouple Operability Assessment Thermal fatigue Water hammer
ML21124A037	4 May 2021	Calvert Cliffs	Integrated Inspection Report 05000317/2021001 and 05000318/2021001	Boric Acid High Radiation Area Nondestructive Examination Temporary Modification Functionality Assessment High Energy Line Break Moisture barrier Coronavirus Liquid penetrant Fire Protection Program Operability Assessment
RA-20-0334, Relief Request to Utilize an Alternative Acceptance Criteria for Code Case N-853, - PWR Class 1 Primary Piping Alloy 600 Full Penetration Branch Connection Weld Metal Buildup for Material Susceptible to Primary	4 May 2021	Oconee	Relief Request to Utilize an Alternative Acceptance Criteria for Code Case N-853, - PWR Class 1 Primary Piping Alloy 600 Full Penetration Branch Connection Weld Metal Buildup for Material Susceptible to Primary	Weld Overlay Stress corrosion cracking Dissimilar Metal Weld
ML20178A464	31 March 2021		Rulemaking: Proposed Rule: Unofficial Redline Strikeout of the Nrc'S Proposed Rule: Proposed Rule to Incorporate by Reference American Society of Mechanical Engineers Codes	Safe Shutdown Stroke time Weld Overlay Hydrostatic Coatings Nondestructive Examination VT-2 Incorporated by reference Flow Accelerated Corrosion Large early release frequency Stress corrosion cracking Moisture barrier Earthquake Power-Operated Valves Dissimilar Metal Weld
ML21084A249	24 March 2021	Harris	Notification of Inspection and Request for Information	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML21021A002	28 January 2021	Comanche Peak	Approval of Proposed Alternatives 1A4-1 and 1A4-2 from Certain Requirements of 10 CFR 50.55a for Inservice Inspection of Nuclear Power Plants	Boric Acid Nondestructive Examination Pandemic Coronavirus COVID-19
ML21019A451	19 January 2021	North Anna	Notification of Inspection and Request for Information	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
AEP-NRC-2021-01, Form OAR-1, Owner'S Activity Report	14 January 2021	Cook	Form OAR-1, Owner'S Activity Report	Boric Acid COVID-19 Pressure Boundary Leakage Power Uprate
ML20338A393	3 December 2020	Catawba	Notification of Inspection and Request for Information	Boric Acid Non-Destructive Examination Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML20253A117	5 October 2020	Comanche Peak	Approval of Request for Alternative from Certain Requirements of 10 CFR 50.55a for Operation and Maintenance of Nuclear Power Plants (EPIDs L-2020-LLR-0063, L-2020-LLR-0064, and L-2020-LLR-0065 (COVID-19))	Boric Acid Nondestructive Examination Pandemic Coronavirus COVID-19 Dissimilar Metal Weld Unidentified leakage
ML20266G459	14 August 2020	Watts Bar	Notification of Inspection and Request for Information	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Liquid penetrant
ML20224A055	10 August 2020	Comanche Peak	NRR E-mail Capture - Verbal Authorization of Comanche Peak Unit 1 Relief Requests 1A3-2, 1A4-1, and 1A4-2 (L-2020-LLR-0092 to L-2020-LLR-0094)	Boric Acid Stress corrosion cracking Pandemic COVID-19 Unidentified leakage
ML20206K865	7 August 2020	Beaver Valley	Relief Requests 2-TYP-4-RV-06 and 2-TYP-4-RV-07 from the Requirements of the ASME Code (EPID L-2020-LLR-0053 and EPID L-2020-LLR-0054 (COVID-19))	VT-2 Stress corrosion cracking Eddy Current Testing Pandemic COVID-19 Pressure Boundary Leakage Pressure boundary leak Through-Wall Leak Unidentified leakage
ML20216A539	6 August 2020	Palo Verde	Relief Request 65 for Inspection of Reactor Pressure Vessel Bottom Mounted Instrument Nozzles and Pressurizer Surge Line Weld Overlay	Weld Overlay Locked High Radiation Area Stress corrosion cracking License Renewal Pandemic Coronavirus COVID-19 Dissimilar Metal Weld Unidentified leakage Thermal fatigue
ML20218A428	5 August 2020	North Anna	Notification of Inspection and Request for Information	Boric Acid Non-Destructive Examination Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion COVID-19 Liquid penetrant
ML20290A586	23 July 2020	Wolf Creek	Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 18, Response to NUREG-0737, Clarification of TMI Action Plan Requirements	Safe Shutdown Boric Acid Reactor Vessel Water Level Loop seal High Radiation Area Ultimate heat sink Non-Destructive Examination Grab sample Fire Barrier Anticipated operational occurrence Safe Shutdown Earthquake Hydrostatic Coatings Operating Basis Earthquake Incorporated by reference High Energy Line Break Aging Management Pressure and Temperature Limits Report Stress corrosion cracking Eddy Current Testing License Renewal Commercial Grade Control of Heavy Loads Fuel cladding Biofouling Fire Protection Program Core Exit Thermocouple Thermography Loss of condenser vacuum Potassium iodide Control Room Habitability
ML20196L827	14 July 2020	Comanche Peak	Relief Request 1A4-2, Reactor Vessel (Rv) Bottom Mounted Instrumentation (Bmi) Nozzle Penetration Examination	Boric Acid Weld Overlay VT-2 Stress corrosion cracking Pandemic Coronavirus COVID-19 Pressure Boundary Leakage Unidentified leakage Operational leakage
ML20111A014	27 April 2020	Beaver Valley	Summary of March 31, 2020, Public Meeting with Energy Harbor Nuclear Corp. to Discuss COVID-19 Potential Submittals of Regulatory Actions	Pandemic COVID-19
ML20106F235	15 April 2020	Comanche Peak	NRR E-mail Capture - Verbal Authorization of Comanche Peak Unit 2 Relief Requests 2A3-3, 2A3-4, and 2A3-5 (L-2020-LLR-0063, L-2020-LLR-0064, and L-2020-LLR-0065)	Boric Acid Nondestructive Examination Pandemic Coronavirus COVID-19 Dissimilar Metal Weld Unidentified leakage
ML20100N322	9 April 2020	Beaver Valley	Verbal Relief for Penetration Evaluation and Hot Leg Nozzles - Delivered 4/9/2020 at 10:00 Am	VT-2 Pandemic COVID-19 Unidentified leakage
CP-202000263, Reactor Vessel Head, Bottom Mounted Instrumentation, and Hot Leg Ultrasonic Testing Examinations Relief Request	9 April 2020	Comanche Peak	Reactor Vessel Head, Bottom Mounted Instrumentation, and Hot Leg Ultrasonic Testing Examinations Relief Request	Boric Acid Weld Overlay VT-2 Stress corrosion cracking Pandemic COVID-19 Pressure Boundary Leakage Unidentified leakage Operational leakage
L-20-117, 10 CFR 50.55a Request Number 2-TYP-4-RV-06, Hardship for Hot Leg Nozzle Inspections	3 April 2020	Beaver Valley	10 CFR 50.55a Request Number 2-TYP-4-RV-06, Hardship for Hot Leg Nozzle Inspections	Stress corrosion cracking Pandemic COVID-19 Pressure Boundary Leakage Through-Wall Leak Dissimilar Metal Weld Unidentified leakage
L-20-115, CFR 50.55a Request Number 2-TYP-4-RV-07 for Bottom Mounted Instrumentation Penetration Examinations	2 April 2020	Beaver Valley	CFR 50.55a Request Number 2-TYP-4-RV-07 for Bottom Mounted Instrumentation Penetration Examinations	Nondestructive Examination Stress corrosion cracking Pandemic COVID-19 Liquid penetrant Pressure Boundary Leakage Through-Wall Leak Unidentified leakage Operational leakage Pre-submittal
ML20106E950	2 April 2020	Catawba	1 to Updated Final Safety Analysis Report, Chapter 18, Aging Management Programs and Activities	Boric Acid Weld Overlay VT-2 Incorporated by reference Aging Management Foreign Material Exclusion Flow Accelerated Corrosion Stress corrosion cracking Eddy Current Testing License Renewal Through-Wall Leak Fire Protection Program Thermal fatigue
ML20091M199	31 March 2020	Palo Verde	NRR E-mail Capture - Palo Verde 2 - Verbal Authorization of RR 65, Request for Relief from RPV Bottom Mounted Instrumentation Nozzles and a Pressurizer Surge Line Weld Overlay ISI Examinations	Weld Overlay Pandemic Coronavirus COVID-19 Dissimilar Metal Weld Unidentified leakage Thermal fatigue
ML20091K075	31 March 2020	Palo Verde	NRR E-mail Capture - Palo Verde 2 - Acceptance Review of RR 65, Request for Relief from RPV Bottom Mounted Instrumentation Nozzles and a Pressurizer Surge Line Weld Overlay Examination	Weld Overlay Pandemic COVID-19
ML20088A533	27 March 2020	Palo Verde	Relief Request 65 - Unit 2, COVID-19, Request for Relief from Bottom Mounted Instrumentation Nozzles and a Pressurizer Nozzle to Surge Line Weld Overlay Examination	Boric Acid Non-Destructive Examination Weld Overlay Locked High Radiation Area Feedwater Heater Stress corrosion cracking Eddy Current Testing Pandemic Coronavirus COVID-19 Dissimilar Metal Weld Unidentified leakage Operational leakage Pre-submittal
ML20084Q180	24 March 2020	Catawba	Notification and Request for Information	Boric Acid Nondestructive Examination Incorporated by reference Flow Accelerated Corrosion Coronavirus Liquid penetrant
ML20056D559	13 March 2020	Ginna	R. E. Ginna Nuclear Power Plant - Issuance of Relief Request Associated with Alternative I6R-02 for the Sixth 10-Year Inservice Inspection Interval	Thermal fatigue
ML20055F886	13 March 2020	Ginna	R. E. Ginna Nuclear Power Plant - Issuance of Relief Request Associated with Alternative I6R-01 for the Sixth 10-Year Inservice Inspection Interval	Boric Acid Stress corrosion cracking
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ASME Code Case N-722-1

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