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Home NRC Library Document Collections Events, Reports Associated with Part 21 Reports

Part 21 Reports: 2021

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Log No. Notifier Description Report Date Event No. / Accession No.
2021-29-03 Lake Engineering Co. Final Report per 10 CFR Part 21 Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 07/31/2022 ML22234A160
2021-29-02 Lake Engineering Co. Third Interim Notification per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 05/12/2022 ML22154A191
2021-29-01 Lake Engineering Co. Second Interim Notification per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 03/03/2022 ML22067A172
2021-29-00 Lake Engineering Co. Interim Notification per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 12/28/2021 ML22019A176
2021-28-00 Callaway Plant Written Notification Regarding Paragon Energy Solutions, LLC Power Supplies 12/01/2021 ML21363A151
2021-27-00 Engine Systems, Inc. Part 21 Notification for Defective Hinge Pin Retainer Plug on Diesel Check Valve PN ESI50359 11/24/2021 ML22021A029
2021-26-00 Paragon Energy Solutions Final Notification of a Deviation with Inverter Assembly (Model NLI-072034-CSI-K-5-A) 10/27/2021 ML21322A051
2021-25-00 United Controls International United Controls International - 10 CFR21 Notification for York PIN: TCM-1 A Temperature Control Modules 10/28/2021 ML21306A180
2021-24-00 Engine Systems, Inc. Part 21 Reportable Notification on a Pressure Regulator Valve 10/18/2021 ML21295A247
2021-23-00 Flowserve Part 21 Notification for Limitorque Supplied DC Motor 10/04/2021 ML21294A029
2021-22-00 Paragon Energy Solutions Notification of a Deviation with Inverter Assembly 09/28/2021 ML21294A030
2021-21-01 Southern Nuclear / Farley Units 1 and 2 Written 10 CFR 21 Notification – General Electric Hitachi Trip Unit Rivets Popping Off 10/22/2021 ML21295A328
2021-21-00 Farley Units 1 and 2 Initial 10 CFR 21 Notification – General Electric Hitachi Trip Unit Rivets Popping Off 09/24/2021 ML21267A538
2021-20-00 V. C. Summer Condition Prohibited by Technical Specifications (involving supports for SR Chillers) (a 50.73 Report) (See related Log No. 2021-0012-01) 08/26/2021 ML21238A158
2021-19-00 TE Connectivity Part 21 Transfer of Information – HI-POT Tester for EGP/ETR Series Relays 09/14/2021 ML21264A133
2021-18-01 Flowserve Nuclear Products Operations Closure of Formal Evaluation - DC Cook O-Ring 10/11/2021 ML21288A055
2021-18-00 Flowserve Nuclear Products Operations Interim Report – Formal Evaluation of Deviations Reported 09/10/2021 ML21258A254
2021-17-00 Ametek Solidstate Controls, Inc Notification of Potential Defect – 10 CFR Part 21 for Omron Timer Relay 09/09/2021 ML21260A007
 
2021-16-01 Arkansas Nuclear One, Units 1 and 2 Retraction of Interim Part 21 Report Concerning Potential Defect of FlowServe/Kerotest Globe Valve 10/29/2021 ML21302A072
2021-16-00 Arkansas Nuclear One, Units 1 and 2 Interim Part 21 Report Concerning Potential Defect of FlowServe/Kerotest Globe Valve 08/25/2021 ML21237A248
2021-15-00 Phi-Delta, Inc. Error Notification for Level 4 Bug in PD/EPD STRUDL 06/14/2021 ML21215A030
2021-14-00 Engine Systems, Inc. Zinc Anode Installed in Emergency Diesel Generator Heat Exchanger (P/N 1335BEM2P) 07/09/2021 ML21209A529
2021-13-00 Vogtle Electric Generating Plant Units 3 and 4 Submittal of 10 CFR 50.55(e) Report Regarding Electrical Construction and Measuring & Test Equipment Control 06/25/2021 ML21176A200
2021-12-01 Paragon Energy Solutions Deviation Identified in the Bolting Utilized to Maintain Seismic Qualification (Update) 06/28/2021 ML21187A124
2021-12-00 Paragon Energy Solutions Deviation Identified in the Bolting Utilized to Maintain Seismic Qualification 06/10/2021 ML21174A009
2021-11-01 Framatome Inc. Long Term Solution for 10 CFR Part 21 Defect 09/23/2021 ML21271A234
2021-11-00 Framatome Inc. 10 CFR Part 21 Notification of Existence of a Defect 06/02/2021 ML21161A238
2021-10-00 Xcel Energy / Monticello Initial and Final Written 10 CFR 21 Notification for GE Hitachi NUMAC Power Range Nuclear Monitoring System 05/07/2021 ML21130A302
2021-09-01 GE Hitachi Nuclear Energy 10 CFR Part 21.21(d)-Reportable Condition: Fuel Support Side Entry Orifice Meta-Stable Flow for 2 Beam Locations in the BWR/6 Reactors 06/17/2021 ML21168A217
2021-09-00 GE Hitachi Nuclear Energy Part 21 60-Day Interim Report Notification: Side Entry Orifice Hydraulic Loss Coefficient (SC 21-04 R0) 04/19/2021 ML21109A337
2021-08-01 Meggitt Safety Solutions, Inc. Closure of MSSI Interim Report of a Deviation pursuant to 10 CFR 21.21(a)(2) 06/04/2021 ML21161A008
2021-08-00 Meggitt Safety Solutions, Inc Interim Report of a Deviation pursuant to 10 CFR 21.21(a)(2) 04/05/2021 ML21099A085
2021-07-02 Ametek Solidstate Controls, Inc Final Notification of Potential Defect - 300V, 250A Clamp Diodes 02/11/2022 ML23229A005
2021-07-01 AMETEK Solidstate Controls Udated Notification of Potential Defect - 300V, 250A Clamp Diodes 04/06/2021 ML21096A114
2021-07-00 AMETEK Solidstate Controls Notification of Potential Defect - 300V, 250A Clamp Diodes 04/01/2021 ML21092A129
2021-06-05 Paragon Energy Solutions 10 CFR Part 21 Notification: P21-03302021, Rev. 3: Failures of Size 1 and 2 Freedom Series Full Voltage Reversing Starters 06/20/2025 ML25174A179
2021-06-04 Paragon Energy Solutions Failure of Size 1 and 2 Freedom Series FVR Starters (written notification of the identification of a defect) 06/29/2021 ML21181A220
2021-06-03 Paragon Energy Solutions Interim Report for Failures of Size 1 and 2 Freedom Series Full Voltage Reversing Starters 05/28/2021 ML21152A279
2021-06-02 Paragon Energy Solutions Failure of Size 1 and 2 Freedom Series FVR Starters (Updated Part Numbers and Date Codes) 05/03/2021 EN 55223
2021-06-01 Paragon Energy Solutions Failure of Size 1 and 2 Freedom Series FVR Starters 04/29/2021 ML21126A172
2021-06-00 Paragon Energy Solutions Failure of Size 1 and 2 Freedom Series FVR Starters 03/30/2021 EN 55162
2021-05-01 Gutor Electronic LLC Final Report of Notification of Potential Defect (A070 Controller Boards) 03/19/2021 ML21105A359
2021-05-00 Gutor Electronic LLC Potential Defect of Basic Components (A070) Controller Boards 02/12/2021 ML21084A114
2021-04-00 Browns Ferry Nuclear Power Plant Interim Report of a Deviation or Failure to Comply 03/23/2021 ML21082A116
2021-03-01 Crane Nuclear, Inc. Closure of Potential Part 21 Issue 06/03/2021 ML21158A007
2021-03-00 Crane Nuclear, Inc. Potential Part 21 Issue 03/05/2021 ML21089A050
2021-02-01 Flowserve Limitorque Final Report of the Evaluation of a Deviation Pursuant to 10 CFR 21.21(a)(2) 04/20/2021 ML21111A322
2021-02-00 Flowserve Limitorque Interim Report of the Evaluation of a Deviation Pursuant to 10 CFR 21.21(a)(2) 02/04/2021 ML21036A187
2021-01-01 Arkansas Nuclear One, Unit 1 Retraction of an Interim Report Concerning an Evaluation of Deviation 03/15/2021 ML21074A338
2021-01-00 Arkansas Nuclear One, Unit 1 Interim Report Concerning an Evaluation of Deviation 01/18/2021 ML21018A005

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Page Last Reviewed/Updated Thursday, June 26, 2025