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 Issue dateTitleTopic
ML23066A2217 March 2023Velan, Inc. - Revised Part 21 Notification Re Butterfly Valves Found to Have a Number of Fasteners Loose
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
ML17081A45320 March 2017Part 21 - Plastic Jar Dedication Sampling
ML17026A41420 January 2017C&D Technologies, Inc. - Part 21 - Plastic Jar Dedication Sampling
ML15099A0432 April 2015Amendment to Event Number 50299, 10 CFR Part 21 Notification, Potentially Defective Pressure & Temperature Switches
ML15099A0422 April 2015Notification of Part 21 Report - Potentially Defective Pressure & Temperature Switches
ML14274A05222 September 2014Final Report 10CFR Part 21 Evaluation Regarding Misaligned Separators in LCR-25 Standby Batteries, Revision 1 - Original Letter Did Not Include the List of Affected Utilities
ML14213A09924 July 2014Notification of Part 21 Report - Potentially Defective Pressure & Temperature Switches
ML14210A01023 July 2014Part 21 - Unseating of Valve Spring on Scram Solenoid Pilot ValveSafe Shutdown
Shutdown Margin
Scram Discharge Volume
ML14204A70823 July 2014Enclosure 2, Description of Closure Evaluation, Non-Proprietary Information - Class I (Public)Safe Shutdown
Shutdown Margin
Scram Discharge Volume
ML14204A70723 July 2014Completed Evaluation of Part 21 Potentially Reportable Condition Notification: Unseating of Valve Spring on SSPV
ML14303A52628 March 2014Interim Part 21 Report - Misaligned Separators in LCR-25 Standby Batteries
ML13165A34212 June 201360-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers
ML13064A01225 February 2013Notification of Potential Part 21 Report Re Wedge Pin Failure of an Anchor/Darling Double-Disc Gate ValveAnchor Darling
ML13042A0968 February 2013Completed Evaluation of Part 21 Potentially Reportable Condition Notification: Error in Main Steam Line High Flow Calculational Methodology
ML13044A0758 February 2013Part 21 - Completed Evaluation for Potential Error in Main Steam Line High Flow Calculational Methodology
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
ML12347A30812 December 2012Part 21 60-Day Interim Report Notification: Error in Main Steam Line High Flow Calculational Methodology
ML12283A24628 September 2012Part 21 - Fairbanks Morse Opposed Piston EDG Oil Pump LeakHydrostatic
ML12319A01227 September 2012Error in Main Steam Line High Flow Calculational Methodology
ML12158A4476 June 2012Part 21 60-Day Interim Report Notification - Closufailure of CRD Collet Retainer Tube/Outer Tube Weld
ML12163A1306 June 2012Part 21 Report - Failure of CRD Collet Retainer Tube/Outer Tube Weld
ML12094A3712 April 2012Part 21 Report - Rosemount Pressure Transmitters with Nonzero Based Calibrations
ML12040A2837 February 2012Notification of Potential Part 21 - Failure to Include Seismic Input in Reactor Control Blade Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
ML12038A0282 February 2012Failure of CRD Collet Retainer Tube/Outer Tube Weld
ML12032A2401 February 2012Notification of Potential Part 21 - 60-Day Interim Report Notification: Failure of CRD Collet Retainer Tube/Outer Tube Weld
ML11228A08412 August 2011Notification of Part 21 - Failure to Include Seismic Input in Reactor Control Blade Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
Scram Discharge Volume
ML11224014211 August 2011Part 21 60-Day Interim Report Notification: Failure to Include Seismic Input in Channel-Control Blade Interference Customer GuidanceSafe Shutdown Earthquake
Channel-control blade interference
Scram Discharge Volume
ML11048005415 February 2011Notification of Potential Part 21 Reportable Condition: Crack Indications in Marathon Control Rod Blades
ML11046048715 February 2011Notification of Potential Part 21 Reportable Condition Re Design Life of D and s Lattice Marathon Control Blades
ML10351003115 December 2010Notification of Potential Part 21 Report Concerning Failure to Include Seismic Input in Reactor Control Blade Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
ML10350017415 December 2010Notification of Potential Part 21 Re 60-Day Interim Report Notification: Failure to Include Seismic Input in Channel-Control Blade Interference Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
ML10306010229 October 2010Notification of Potential Part 21 Transfer of Information Concerning Control Components Inc. (CCI) Drag ValvesBoric Acid
ML10295028120 October 2010Part 21 Notification - Crack Indications in Marathon Control Rod Blades
ML10293050520 October 2010GE Hitachi Nuclear Energy - Notification of Potential Part 21 60-Day Interim Report: Crack Indications in Marathon Control Rod Blades
ML10273006327 September 2010Notification of Potential Part 21 Report Concerning Failure to Include Seismic Input in Reactor Control Blade Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
ML10270061427 September 2010Part 21 60-Day Interim Report Notification: Failure to Include Seismic Input in Channel-Control Blade Interference Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
ML1025202193 September 2010Part 21 - Failure to Include Seismic Input in Reactor Control Blade Customer GuidanceSafe Shutdown Earthquake
Operating Basis Earthquake
Channel-control blade interference
ML10194035512 July 2010Part 21 Report for Certain Model 3051N Pressure Transmitters
ML10194030912 July 2010Rosemount Nuclear Notification Under 10 CFR Part 21 for Certain Model 3051N Pressure Transmitters
ML10138039614 May 2010Part 21 Report - Bent Fuel Spacer Flow Wing
ML10137006514 May 2010Part 21 Reportable Condition Notification: Bent Fuel Spacer Flow Wing - GNF2 Fuel
ML08319001712 November 2008Notification of Potential Part 21 on All Dimensionally Verified Commercial Grade Items Processed Per Fisher Manufacture Procedure Fmp 2K28
ML08239010625 August 2008Notification of Potential Part 21 on Failure of F and G SwitchesTest box
ML0809906344 April 2008Part 21 Notification Regarding Failure to Comply with the Requirements for Dedication of Commercial Grade Items
ML08081043120 March 2008Part 21 Report Involving Potential Failure of Certain Rosemount Pressure Transmitters
ML0732000869 November 2007Notification of Potential Part 21 Report Conval Valves Weld Qualifications
ML07275047021 September 2007MPR Associates, Inc. - Report of Defect in Accordance with 10 CFR 21Commercial Grade Dedication
ML0710101259 April 2007Fairbanks Morse Engine, Part 21 Notification - Diesel Cam Roller Bushing Failures