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 Issue dateTitleTopic
ML23011A06211 January 2023Written Part 21 Notification of a Defect Associated with Imi CCI Supplied Main Steam and Main Feedwater Isolation Valves
ML22220A2362 August 2022Leonardo DRS, 16-AAT907B Power Supply 10 CFR Part 21 Notification
ML21363A15129 December 2021CFR Part 21 Written Notification Regarding Paragon Energy Solutions, LLC Power Supplies
ML19346H87312 December 2019Westinghouse Electric Company - Notification of the Potential Existence of Defect Pursuant to 10 CFR Part 21
ML19168A01231 May 2019Paragon Energy Solution LLC-10 CFR Part 21 Report of Defect GS2 Terry Turbine Introl Positioners
ML19053A5001 February 2019Sor, Inc. Part 21 Notification of Deviation Sor R-Series Housing with Terminal Block
ML18039A29224 January 2018Velan, Inc. - Corrected Notification for 4NPS Class 150 Through 900 Swing Check Valve Disc (Part Number 8205-012)
ML18024A00316 January 2018Velan Inc. - Part 21 Notification for Disc (Part Number 8205-012) in 4NPS Class 150 Through 900 Swing Check Valve
ULNRC-06393, 10 CFR Part 21 Written Notification Regarding Cameron Barton Model 752B Differential Pressure Transmitters31 October 201710 CFR Part 21 Written Notification Regarding Cameron Barton Model 752B Differential Pressure Transmitters
ML17194A82511 July 2017Part 21 Report Re Wedge Pin Failure in Anchor Darling Motor Operated Double Disc Gate Valves with Threaded Stem to Upper Wedge ConnectionsAnchor Darling
ML17165A4059 June 2017Part 21 Report - Potential Minimum Wall Thickness Issue on Certain Posi-Seal Valves
ML17104A28813 April 2017Emerson Process Management, LLC - Fisher Information Notice, (FIN) 2017-02
ML17114A07013 April 2017Part 21 Notification - Identified Fisher 546S Electro-Pneumatic Transducers Standard Mounting Brackets Failed Seismic Testing Standards
ML17026A4125 December 2016Valcor Engineering Corp. - Part 21 - Non-Conforming Cover Machining on Solenoid Valve
ML16321A45121 October 2016Part 21 Reporting of Defects and Noncompliance
ML16278A47122 September 2016Notification of 10 CFR Part 21 Condition, Masterpact Breaker Fail to Close
ML16281A27022 September 2016Part 21 - Initial Notification of Masterpact Breaker Fail to Close
ML16243A47225 August 2016Part 21 Reporting of Defects and Noncompliance
ML16229A44415 August 2016Potential Part 21 on Safety Clip, Siemens Part Number 401158
ML16203A1797 July 2016Curtiss-Wright 10 CFR Part 21 Report Regarding Disposition of a Nonconformance on Struthers-Dunn Relay Part Number B225XCXP125V Supplied to PSEG Nuclear, LLC
ML16139A83313 May 2016Part 21 - Initial Notification of Masterpact Breaker Fail to Close
ML16139A83213 May 2016Part 21 - Initial Notification of Masterpact Breaker Fail to Close
ML16139A83410 May 2016Electroswitch - Transmittal of 10CFR Part 21 Reporting of Defects and Noncompliance Regarding Vendor Inspection of Electroswitch Corporation Docket No. 99900833
ML16126A11129 April 2016National Technical Systems (Nts) Request for Extension, for Potential Part 21 on Safety Clip, Siemens Part Number 401-158
ML16112A21014 March 2016National Technical Systems - Potential Part 21 on Siemens 401-158 Safety Clip, Per Wolf Creek, Salem, and Arkansas Nuclear One
ML15280A3525 October 2015Part 21 Report Electronic Position Controller Failed Internal
ML15103A4857 April 2015Itt Engineered Valves - 2nd Interim Report to the NRC of 10 CFR 21 Event 50285, Reported by Itt 07/18/14 Concerning M I Diaphragms, Customer Testing
ML15022A65020 January 2015Letter from Steven R. Eisenberg USNRC 10CFR Part 21 Notification
ML14261A15017 September 2014Interim Report to the NRC of 10 CFR 21 Event 50285, Reported by Itt 07/18/14 Concerning M1 Diaphragms, Customer Testing
ML14094A4451 April 2014Notification of Part 21 Report on Defective Raw Material Used to Manufacture Valve Stems
ML14069A4682 March 2014Part 21 Report - Defective Raw Material Used to Manufacture Valve Stems
ML14034A18923 January 2014Part 21 - Loose Battery Vent AssembliesCommercial Grade Dedication
ML13211A16826 July 2013Westinghouse, Notification of Potential Existence of Defects Pursuant to 10 CFR Part 21 Inconsistency Between the Intended Design Functionality of the Shield Passive Thermal Shutdown Seal (SDS) and That Observed During Post-Service TestingFLEX
Large early release frequency
Fire Protection Program
ML13165A34212 June 201360-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers
ML13073A10712 March 2013Notification of Potential Part 21 Report - Defective Raw Material Used to Manufacture Valve Stems
ML13064A01225 February 2013Notification of Potential Part 21 Report Re Wedge Pin Failure of an Anchor/Darling Double-Disc Gate ValveAnchor Darling
ML13045A8931 February 2013Notification of Part 21 Report - Defective Raw Material Used to Manufacture Valve Stems
ML12352A12313 December 201260-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers
ML12348A13613 December 2012Part 21 60-Day Interim Report Notification: Adequacy of Design Change in Am Magne-Blast Circuit Breakers
ML1219103372 July 2012Update 10 CFR Part 21 Notification of Defective Moore 535 Controllers
ML12110A16717 April 2012Notification of Potential Part 21 Report - Swagelok U Series Bellows Valves Loosening of Stem Tips
ML12094A3712 April 2012Part 21 Report - Rosemount Pressure Transmitters with Nonzero Based Calibrations
ML12066A1182 March 2012Part 21 Report - Rosemount Pressure Transmitters with Nonzero Based Calibrations
ML12097A3162 March 2012Part 21 Report - Rosemont Pressure Tranmitters Out of Tolerance Condition
ML10048013812 February 2010Interim Report of the Evaluation of a Deviation Pursuant to 10CFR21.21(a)(2)Fire Barrier
Coatings
ML10051290812 February 2010Notification of Potential Part 21 Report Re Interim Report Concerning an Issue in Sump Blockage Generic TestsFire Barrier
Coatings
ML0934401528 December 2009Notification of Potential Part 21 on Woodward Governor Servo Failure Due to Silver Sulfide Corrosion of Surface Mount Resistors
ML0934908698 December 2009Engine Systems, Inc., Transmittal of 10 CFR 21Defects and Non-Compliance for Woodward Pgpl Actuator with Remote Servo P/N 529-044 P/N: 9903-539
ML09268024623 September 2009Notification of Potential Part 21 on Reportable Occurrence Under 10 CFR Part 21: Firmware Anomaly in the Model RM-80 Radiation Monitoring System
ML08319001712 November 2008Notification of Potential Part 21 on All Dimensionally Verified Commercial Grade Items Processed Per Fisher Manufacture Procedure Fmp 2K28