United States Nuclear Regulatory Commission - Protecting People and the Environment

Part 21 Reports

2000s: | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004
            | 2003 | 2002 | 2001 | 2000 |

1990s: | 1999 | 1998 | 1997 | 1996 | 1995 |

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

This page includes links to files in non-HTML format. See Plugins, Viewers, and Other Tools for more information.

Log No. Notifier Description Report Date Event No. / Accession No.
2012-55-01 GE Hitachi Nuclear Energy Updated Report - Adequacy of Design Change in AM Magne-Blast Circuit Breakers 06/12/2013 ML13163A220
2013-19-01 ATC Nuclear Retracted Part 21 Interim Report Involving Review of Seismic Methodology 06/05/2013 ML13161A342
2013-35-00 Westinghouse Electric Co. Interim Report - AP 1000 Plant Pressurizer Support Columns and Embedment Load Inconsistency 05/31/2013 ML13161A341
2013-16-01 Tennessee Valley Authority Browns Ferry Emergency Diesel Generator Replacement Fuel Injectors Failed a Pressure Test 05/29/2013 ML13151A022
2013-06-01 CB&I Lake Charles

Indeterminate Status of Rebar Spices Used for Modules Being Supplied to AP 1000 Projects Vogtle Unit 3 and V. C. Summer Unit 2

05/29/2013 ML13151A038
2013-34-00 Shaw AREVA MOX Services 60-Day Interim Report Notification: Weld Wire Samples for Commercial Grade Dedication 05/28/2013 ML13149A290
2013-27-01 ITT Engineered Valves, LLC Type M1 Diaphragms May Not Be Qualified for Specific Radiation Design Conditions 05/24/2013 ML13155A385
2013-33-00 Crane Nuclear, Inc. Potential Valve Body Leakage - 2" Valve Assembly 05/17/2013 ML13165A022
2013-01-02 Watts Bar Unit 2 10 CFR 50.55(e) Second Interim Report – Commercial Grade Dedication Program Degraded 05/06/2013 ML13129A176
2013-31-00 Engine Systems, Inc. Fuel Injectors Failed Pressure Test (See related Part 21 report number 2013-16-00) 05/03/2013 ML13127A014
2013-30-00 Curtiss-Wright Electro-Mechanical Corp. Insufficient Process Control on Pump Impeller 05/03/2013 ML13127A013
2013-29-00 Curtiss-Wright Flow Control Co. Interim Report of a Potential Defect in a Relief Valve Bellows 05/03/2013 ML13127A012
2012-54-01 Emerson Process Management Fisher HPD Valve Assemblies with TopWorx Proximity Switch Brackets Installed Upside Down (Update) 04/30/2013 ML13122A127
2013-21-01 Watts Bar 2 Instrumentation Lines Not Inspected Completely for Proper Slope (an Interim 10 CFR 50.55(e) Report) 04/29/2013 ML13121A427
2013-28-00 Shaw AREVA MOX Services Defect identified in some Type 304L and 316L Stainless Steel pipe 04/29/2013 ML13120A277
2013-27-00 ITT Engineered Valves, LLC Type M1 Diaphragms May Not Be Qualified for Specific Radiation Design Conditions 04/26/2013 ML13120A112
2013-32-00

Nine Mile Point Unit 2

Failure of High Pressure Core Spray System Pressure Pump due to Motor Winding Failure (a 10 CFR 50.73 Report) 04/25/2013 ML13122A227
2013-26-00 Engine Systems Inc. Refurbished Emergency Diesel Generator Cylinder Heads May Have Missing Valve Keeper Seals 04/23/2013 ML13116A303
2013-12-01 Limerick Flowserve Model 28KXL Pump Impeller Defect 04/15/2013 ML13106A062
2013-14-01 AAF International Possible Deviation or Defect in Nuclear Qualified High Efficiency Particulate Air (HEPA) Filters 04/11/2013 ML13105A111
2013-25-00 Summer Units 2 & 3 Failure to Comply with Conditions of Construction Permit (a 50.55(e) Report) 04/10/2013 EN 48910
2013-24-00 Vogtle Units 3 & 4 Failure to Comply with Conditions of Construction Permit (a 50.55(e) Report) 04/10/2013 EN 48906
2010-11-01 Crane Nuclear, Inc. Notification of a Potential Weld Defect 04/10/2013 ML13102A303
2012-37-01 Westinghouse Electric Company Defect Due to Change in Manufacturing Process Causing Relay Failure in Safety Related Systems 04/08/2013 ML13100A357
2013-23-00 Flowserve Limitorque Valves with Incorrect Motor Nameplates Installed 04/05/2013 ML13099A093
2013-22-00 ABB Inc. Issue Concerning the Zero Point Acceleration (ZPA) Rating for 3 Phase Relay Type SSC-T 04/01/2013 ML13093A155
2013-21-01 Watts Bar 2 Instrumentation Lines Not Inspected Completely for Proper Slope (a 10 CFR 50.55(e) Report Update) 04/29/2013 ML13121A427
2013-21-00 Watts Bar 2 Instrumentation Lines Not Inspected Completely for Proper Slope (a 10 CFR 50.55(e) Report) 04/01/2013 EN 48871
2013-20-01 Integrated Resources Inc. Foxboro Power Supply Potential Failures due to Defective Tie Wraps and Holders (Update) 04/01/2013 ML13093A153
2012-23-01 ABB, Inc. Protective Relays May Not be Qualified for Harsh Environments (Closed) 04/01/2013 ML13093A154
2013-03-01 MPR Associates, Inc. Part 21 Report on a Replacement Basler EDG Excitation System Failure 03/29/2013 ML13092A118
2013-20-00 Integrated Resources Inc. Foxboro Power Supply Potential Failures due to Defective Tie Wraps and Holders 03/28/2013 ML13091A387
2013-19-00 ATC Nuclear Interim Part 21 Report Involving Review of Seismic Methodology 03/28/2013 ML13091A388
2013-18-00 Electroswitch Series 24 CSR Relays with Potentially Oversized Drive Cam Component 03/26/2013 ML13099A238
2013-17-00 Fairbanks Morse Engine Foreign Material Found Inside Emergency Diesel Generator Air Start Piping Assembly 03/25/2013 ML13086A255
2013-16-00 Tennessee Valley Authority Browns Ferry Emergency Diesel Generator Replacement Fuel Injectors Failed a Pressure Test 03/22/2013 ML13085A339
2013-15-00 Emerson Process Management Incorrect Assembly Instructions for TopWorx GO Switches 03/22/2013 ML13085A340
2013-13-00 ASCO Valve, Inc. Direct Acting Threse Way Solenoid Valve will not Shift when De-energized 03/20/2013 ML13084A054
2013-14-00 AAF International Possible Deviation or Defect in Nuclear Qualified High Efficiency Particulate Air (HEPA) Filters 03/18/2013 ML13079A320
2013-12-00 Limerick Flowserve Model 28KXL Pump Impeller Defect 03/15/2013 ML13077A334
2013-05-01 Emerson Process Management TopWorx M8 Switches Built and Shipped with Adhesive that was Beyond its Expiration Date (Final Report) 03/13/2013 ML13093A251
2013-11-00 Emerson Process Management Loose Fisher Controls Proximity Switch Target Magnets (a 10 CFR 50.55(e) Report) 03/12/2013 ML13073A108
2013-08-01 Dresser-Rand

Defective Raw Material Used to Manufacture Valve Stems for Terry Type Emergency Feedwater Pump Drive Turbines

03/11/2013 ML13073A107
2013-10-00 Curtiss-Wright Flow Control Scientech Dual Alarm Modules and Single Alarm Modules 03/01/2013 ML13063A443
2013-09-00 Flowserve Wedge Pin Failure in Anchor Darling Motor Operated Double Disc Gate Valve (See related Part 21 Report No. 2013-02-00) 02/25/2013 ML13064A012
2013-08-00 Dresser-Rand Defective Raw Material Used to Manufacture Valve Stems for Terry Type Emergency Feedwater Pump Drive Turbines 02/12/2013 ML13045A893
2013-05-00 Emerson Process Management TopWorx M8 Switches Built and Shipped with Adhesive that was Beyond its Expiration Date 02/11/2013 ML13044A074
2013-06-00 Shaw Modular Solutions

Indeterminate Status of Rebar Splices Used for Modules Being Supplied to AP 1000 Projects Vogtle Unit 3 and V. C. Summer Unit 2

02/08/2013 ML13044A360
2012-42-02 GE Hitachi Nuclear Energy

Error in Main Steam Line High Flow Calculation Methodology (Final Report).

02/08/2012 ML13042A096
2013-01-01 Watts Bar Unit 2 10 CFR 50.55(e) Report Update - Commercial Grade Dedication Program Degraded 01/31/2013 ML13037A455
2012-44-02 Waterford 3

Defective Masoneilan I/P Transducer Model 8005N

01/25/2013 ML13025A167
2012-59-01 Tennessee Valley Authority Belden Wire used on Environmentally Qualified Form-Wound Motors Not Fully Qualified 01/18/2013 ML13029A498
2013-04-00 Emerson Process Management Notification of Potential Part 21 Report Involving Fisher Type 546 and 546NS Transducers. 01/11/2013 ML13015A306
2013-03-00 MPR Associates, Inc. Interim Report on a Replacement Basler EDG Excitation System Failure 01/09/2013 ML13010A518
2013-02-00 Browns Ferry Unit 1 Anti-Rotation Pin Failure in 10-inch Anchor Darling (Flowserve) Double Disc Gate Valve 01/04/2013 ML13008A321
2013-01-00 Watts Bar Unit 2 10 CFR 50.55(e) Report - Commercial Grade Dedication Program Degraded 01/03/2013 EN 48646
2012-59-00 Tennessee Valley Authority Belden Wire used on Environmentally Qualified Form-Wound Motors Not Fully Qualified 12/21/2012 ML13002A029
2012-58-00 ABB Inc. Defect discovered in COM-5 and SSC-T Protective Relays Distributed by ABB INC. 12/21/2012 ML13002A470
2012-45-01 Shaw AREVA MOX Services Interim Report Closure - HVAC Duct Spool Minimum Wall Thickness 12/19/2012 ML12356A095
2012-56-00 Shaw AREVA MOX Services Nonconforming Welds on a Pellet Handling Transfer Glovebox 12/14/2012 ML12353A146
2012-55-00 GE Hitachi Nuclear Energy Adequacy of Design Change in AM Magne-Blast Circuit Breakers (Interim Report) 12/13/2012 ML12348A136
2012-42-01 GE Hitachi Nuclear Energy

Error in Main Steam Line High Flow Calculation Methodology (Updated Interim Report).

12/12/2012 ML12347A308
2012-60-00 Canberra Industries, Inc. Model GP 100C Gamma Probe Failed to Comply with Certain PSEG Specifications 12/10/2012 ML12363A047
2012-54-00 Emerson Process Management Fisher HPD Valve Assemblies with TopWorx Proximity Switch Brackets Installed Upside Down 12/06/2012 ML12346A300
2012-53-00 Engine Systems, Inc. Refurbished Emergency Diesel Generator Cylinder Head With Foreign Material in Intake Port. 12/06/2012 ML12342A373
2012-57-00 Emerson Process Management Fisher Controls Report Involving Performance of NPT Stamped Cavitrol III Plugs at Catawba Nuclear Station 11/27/2012 ML12356A302
2012-22-03 Watts Bar 1 Unexpected Degradation of Vital Batteries III and IV 11/21/2012 ML12326A714
2012-52-00 Flowserve

Linear Indications on Pressure Reducing Balancing Sleeve (Interim Report)

11/12/2012 ML12319A475
2012-51-00 Palo Verde Interim Report for Flowserve Four Inch Regulating Valve 11/09/2012 ML12319A473
2012-50-00 Scientech Potential Grounding Pathway Between Heat Sink and Chassis of CMM830 and TMD830 Control Modules 11/08/2012 ML12318A040
2012-49-00 ABB Inc K-Line Circuit Breaker Operating Mechanism Front Cover Fails to Comply with Specifications 11/08/2012 ML12318A039
2012-48-00 Fisher Controls International Commercial Grade Dedication Not Properly Applied to Type 9200 Butterfly Valves 11/07/2012 ML12318A041
2012-41-01 The Shaw Group Inc. Part 21 Report Regarding Embedments for AP1000 Project Vogtle Units 3 and 4 11/05/2012 ML12318A156
2012-43-01

FitzPatrick

Retraction - Faulty Rosemount Master Trip Units, Slave Units and Resistance Temperature Detectors

10/26/2012 EN 48353
2012-46-00 Engine Systems Inc.

EMD/Detroit Diesel Temperature Switch Potentially Shipped Without Set Screw

10/05/2012 ML12292A197
2012-18-03 Mitsubishi Nuclear Energy Systems Steam Generator Tube Wear Adjacent to Retainer Bars (San Onofre 3) 10/05/2012 ML12283A243
2012-14-03 Mitsubishi Nuclear Energy Systems Steam Generator Tube Wear (SONGS 2) 10/05/2012 ML12283A302
2012-45-00 Shaw AREVA MOX Services

Interim Report - HVAC Duct Spool Minimum Wall Thickness

10/04/2012 ML12278A421
2012-44-01 Waterford 3

Defective Masoneilan Transducer Model 8005N

10/01/2012 ML12276A111

See also:

To top of page

Page Last Reviewed/Updated Tuesday, June 18, 2013