United States Nuclear Regulatory Commission - Protecting People and the Environment

Part 21 Reports

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The U.S. Nuclear Regulatory Commission (NRC) receives reports from its licensees under Part 21 of Title 10 of the Code of Federal Regulations. This regulation specifies the conditions under which information must be submitted when a licensed facility, activity, or basic component fails to comply with the Atomic Energy Act of 1954, as amended, or other NRC regulations.

Recently Updated Reports

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Log No. Notifier Description Report Date Event No. / Accession No.
2014-53-01 SOR, Inc. Potentially Defective Pressure and Temperature Switches 04/02/2015 ML15099A043
2015-22-00 CB&I Nuclear Interim 10 CFR Part 21 Report Regarding Rebar Deviations For Vogtle Unit 3 AP1000 Project 03/27/2015 ML15097A043
2015-21-00 CB&I Nuclear Interim Part 21 Report Regarding CA01 Submodule Deviations For Vogtle Unit 3 AP1000 Project 03/27/2015 ML15097A042
2015-20-00 United Controls International Interim Report - Resistive Short Identified on Thomas & Betts Power Solutions/Cyberex Sense & Transfer Module 03/27/2015 ML15089A435
2015-15-01 CB&I Nuclear

Updated Interim Report Regarding Submodule CA01-38 Deviations for Vogtle Unit 3 AP1000 Project

03/25/2015 ML15092A163
2015-12-01 CB&I Nuclear Interim Report Regarding Nonconformances on CA01 Submodules for V.C. Summer Unit 2 AP1000 Project 03/20/2015 ML15099A504
2015-10-01 CB&I Nuclear Updated Interim Report Regarding Overlay Plate Mechanical Coupler Welds for Vogtle Units 3 and 4 AP1000 Project 03/20/2015 ML15091A345
2015-19-00 Emerson Process Management Fisher Type 461 Valve Plug Machining Defect 03/20/2015 ML15089A436
2013-10-02 Curtiss-Wright Flow Control Update to Part 21 Report on Scientech Dual Alarm Modules and Single Alarm Moduless 03/20/2015 ML15089A437
2015-18-00 Curtiss-Wright Flow Control Corp. Interim Notification of a Potential Test Induced Defect in a 0867F Series Main Steam Safety Relief Valve 03/16/2015 ML15077A422
2015-14-01 Dominion Power Connecticut (Millstone Unit 3) Written Notification Related to Binding in ABB K-Line Secondary Closing Latches (Part Number 716610K01) 03/13/2015 ML15079A398
2015-17-00 Weir Valves & Controls USA Inc. Improper Weld Used on Replacement Gate Valve Cover 03/13/2015 ML15077A379
2014-90-01 ABB Amendment to Part 21 Notification of Potential Defect Regarding KF Relay ZPA Rating 03/05/2015 ML15070A543
2015-14-00 Dominion Power Connecticut Defect in ABB K-Line Breaker Replacement (New) Secondary Close Latches 02/25/2015 ML15058A717
2015-13-00 QualTech NP Potential Defect in a Socket Used Separately on in a Connector Kit 02/23/2015 ML15058A716
2014-79-02 CB&I Nuclear Closure of Interim Part 21 Report Regarding CA03 Structural Module Fabrication for Vogtle Unit 3 AP1000 Project 02/23/2015 ML15055A525
2015-06-01 Vogtle Units 3 & 4 A Breakdown in the Quality Assurance Program for Vogtle 3 & 4 Construction Program (a10 CFR 50.55(e) Written Report) 02/23/2015 ML15055A525
2015-15-00 CB&I Nuclear Interim Report Regarding Submodule CA01-38 Deviations for Vogtle Unit 3 AP1000 Project 02/19/2015 ML15062A595
2015-09-00 Summer Units 2 & 3 Significant Breakdown in the Quality Assurance (QA) Program of an Agent of the Licensee (a 10CFR 50.55(e) Report) 02/12/2015 ML15054A012
2015-16-00 CB&I Nuclear Interim Report Regarding Overlay Plate Mechanical Coupler Welds for V.C. Summer Unit 2 AP1000 Project 02/10/2015 ML15065A255
2015-08-00 Weir Valves and Controls, USA TRICENTRIC(r) Triple Offset Valve Spline Adapter Vibrated Loose 02/10/2015 ML15049A456
2015-06-00 Vogtle Units 3 & 4 Breakdown in the Quality Assurance Program for Vogtle 3 & 4 Construction Project (a10 CFR 50.55(e) Report) 02/09/2015 EN 50798
2015-07-00 Valcor Engineering Corporation Possible NEMA 4 Enclosure Assembly Error In Some Solenoid Valve Models 02/09/2015 ML15049A457
2015-05-00 Thermo Gamma-Metrics LLC Shutdown Margin Monitor Environmental Qualification Noncompliance 02/06/2015 ML15049A458
2014-23-02 QualTech NP Revision to Final Notification Related to Potential Defect in General Electric Type CR120AD Control Relays 02/05/2015 ML15040A083
2015-04-00 Operation Technology, Inc. / ETAP Error Report Related to ETAP Power System Analysis Software 02/03/2015 EN 50784
2015-12-00 CB&I Nuclear Interim Report Regarding Nonconformances on CA01 Submodules for V.C. Summer Unit 2 AP1000 Project 01/29/2015 ML15043A187
2014-91-01 Baldor Electric Co. Written and Final Report - Baldor AC Motors with Potential Bearing End Cap Alignment Issues (Revised) 01/23/2015 ML15034A566
2015-11-00 CB&I Nuclear Interim Report Regarding Submodule CA01-13 Nonconformances for V.C. Summer Unit 2 AP1000 Project 01/22/2015 ML15043A189
2014-86-01 CB&I Nuclear Updated Interim Report Regarding Threaded Rebar Terminator Deviations for V.C. Summer Units 2 & 3 (AP1000) 01/21/2015 ML14337A114
2015-10-00 CB&I Nuclear Interim Report Regarding Overlay Plate Mechanical Coupler Welds for Vogtle Units 3 and 4 AP1000 Project 01/20/2015 ML15043A188
2013-38-01 National Technical Systems Updated Part 21 Report - Firmware Notice for Users of Yokogawa DX1000N and DX2000 Model Recorder 01/20/2015 ML15022A650
2014-76-02 CB&I Nuclear Part 21 Report Regarding Deviations of Coatings for Pipe Supports for AP1000 Projects 01/13/2015 ML15027A425
2015-03-00 CB&I Nuclear Interim Report Regarding Submodule CA01-15 Nonconformances for V.C. Summer Unit 2 AP1000 Project 01/09/2015 ML15029A542
2015-02-00 CB&I Nuclear Interim Report Regarding Trends in Welding and Documentation Issues for Vogtle Units 3 and 4 AP1000 Project. 01/08/2015 ML15022A200
2014-87-01 CB&I Nuclear Closure of Interim Report Regarding Rebar Deviations For Vogtle Units 3 & 4 AP1000 Project 01/08/2015 ML15022A201
2014-71-01 CB&I Nuclear Closure of Interim Part 21 Report Regarding Submodule and Embedment Deviations for V. C. Summer Unit 2 (AP1000 Project) 01/08/2015 ML15022A201
2015-01-00 AZZ / Nuclear Logistics Inc. Report of Potential Failure of GE Hitachi (GEH) SBM Type Switches. 01/08/2015 ML15014A061

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Page Last Reviewed/Updated Monday, April 13, 2015