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

Part 21 Reports - 2010

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Log No Notifier Description Report Date Event No. / Accession No.
2010-44-00 H.B. Robinson, Unit 2 Manual Reactor Trip Due to Failure of 'A' Steam Generator Level Module (a 10 CFR 50.73 Report) 01/05/2010 ML100110218
2010-43-00 Three Mile Island Nuclear Station, Unit 1 Multiple Main Steam Safety Valve Test Failures (a 10 CFR 50.73 Report) 10/07/2010 ML102860132
2010-42-00 Dresden Nuclear Power Station, Units 2 and 3 Reactor Protection System Nonconformance to a Design Standard (a 10 CFR 50.73 Report) 01/22/2010 ML100330292
2010-41-00 Phi-Delta, Inc. Error in PD STRUDL Software (Pipe Stress Module) 12/07/2010 ML110060129
2010-40-00 Hirschfeld Industries Structural Steel Beam Faults 12/14/2010 ML103500404
2010-39-00 Ultra Electronics Functional issue with Weed Instrument N7000 Series RTD Temperature Transmitters 12/07/2010 ML103420505
2010-38-00 Rosemount Nuclear Anomaly Discovered on certain Rosemount Model 1152 Differential Pressure Transmitters with Output Code "L" 10-50 mA Electronics 12/02/2010 ML103400155
2010-37-00 GE-Hitachi Nuclear Energy Reverse Polarity on HPCI Turbine EG-R Hydraulic Actuators 11/18/2010 ML103230317
2010-36-00 Curtiss Wright Flow Control Company / QualTech NP UPS Motherboard Failed Pre-Service Inspection 11/08/2010 ML103130423
2010-35-00 VELAN Inc. Defective Limitorque Type SMB-00 and Type SMB-2-06 Limit Switches 11/08/2010 ML103160299
2010-34-01 Control Components Inc. Susquehanna identifies potentially susceptible Drag® valves previously reported by Control Components Inc. 03/08/2011 ML110770043
2010-34-00 Control Components Inc. Potential for the Disk Stack to separate within certain Drag® valves. 10/29/2010 ML103060102
2010-33-02 Oconee Nuclear Station Defect observed in Mackson Tube Steel that could be used in various Safety-Related Structural Applications 10/13/2011 ML11287A139
2010-33-01 Oconee Nuclear Station Defect observed in Mackson Tube Steel that could be used in various Safety Related Structural Applications 11/22/2010 ML103350168
2010-33-00 Oconee Nuclear Station Defect observed in Mackson Tube Steel that could be used in various Safety Related Structural Applications 10/29/2010 ML103060087
2010-32-02 GE-Hitachi Nuclear Energy Design Life of D and S Lattice Marathon Control Blades 02/15/2011 ML110460487
2010-32-01 GE-Hitachi Nuclear Energy Crack Indications in Marathon Control Rod Blades 12/01/2010 ML103360004
2010-32-00 GE-Hitachi Nuclear Energy Crack Indications in Marathon Control Rod Blades 10/20/2010 ML102930505
2010-31-01 ASCO Valve Inc. External Leakage in NP8320 Solenoid Valve 11/11/2010 ML103190730
2010-31-00 ASCO Valve Inc. External Leakage in NP8320 Solenoid Valve 10/18/2010 ML102940033
2010-30-00 ABB Inc. Failure of Certain Solid State Relays to Comply 09/30/2010 ML102770418
2010-29-00 Dresser Masoneilan Potential Issues with certain Model 77N-40 Air Regulators 09/29/2010 ML102770105
2010-28-00 H. B. Robinson, Unit 2 Emergency Diesel Generator Inoperable in Excess of Technical Specifications Completion Time due to Output Breaker Failure (a 10 CFR 50.73 Report) 06/01/2010 ML101590222
2010-27-01 GE-Hitachi Nuclear Energy U.S. ABWR Turbine Building Design Requirements 10/11/2010 ML102850242
2010-27-00 Fluor Enterprises, Inc. U.S. ABWR Design Certification - Design Input Requirements for Main Steam Line Seismic Analysis 08/30/2010 ML102530168
2010-26-00 Rotork Controls, Inc. Defective Sintered Gear used in NA1E type Valve Actuator optional "Add On Pack" Sub-assemblies. 09/08/2010 ML102530446
2010-25-06 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 02/07/2012 ML12040A283
2010-25-05 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 12/19/2011 ML113530512
2010-25-04 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 09/26/2011 ML112700066
2010-25-03 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 08/11/2011 ML112240142
2010-25-02 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 12/15/2010 ML103500174
2010-25-01 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 09/27/2010 ML102700614
2010-25-00 GE-Hitachi Nuclear Energy Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance 09/02/2010 ML102460537
2010-24-01 Cooper Nuclear Station GE-Hitachi 4160 VAC Control and Transfer Breaker Switch Defect 09/02/2010 ML102510125
2010-24-00 Cooper Nuclear Station GE-Hitachi 4160 VAC Control and Transfer Breaker Switch Defect 08/10/2010 ML102280174
2010-23-00 Rosemount Nuclear Instruments, Inc. Reliability Concern Related to Certain Model 3051N Pressure Transmitters 07/12/2010 ML101940309
2010-22-00 Trentec Failure of Ronken Oil-Filled 70 Microfarad Capacitor (Date Code 06-06) 07/06/2010 ML101890066
2010-21-00 Tyco Electronics Notification of Limited E7000 Relay Recall 06/16/2010 ML101720486
2010-20-00 C&D Technologies, Inc. Post Corrosion on DCU Batteries 05/28/2010 ML101530108
2010-19-00 GE Hitachi Nuclear Energy Bent Fuel Spacer Flow Wing – GNF2 Fuel 05/14/2010 ML101370065
2010-18-01 Dresser-Rand Soldering Defect on a Digital Control System Output Filter Printed Circuit Board 06/04/2010 ML101600189
2010-18-00 Dresser-Rand Soldering Defect on a Digital Control System Output Filter Printed Circuit Board 05/11/2010 ML101380397
2010-17-01 Oconee Nuclear Station Failed Backseat Gasket on 1-inch Flowserve Socket Welded Globe Valve with a Threaded Backseat 12/13/2010 ML103510024
2010-17-00 Oconee Nuclear Station Failed Backseat Gasket on 1-inch Flowserve Socket Welded Globe Valve with a Threaded Backseat 04/21/2010 ML101160034
2010-16-01 Engine Systems, Inc. EMD Diesel Jacket Water Pump with Incorrect Impeller Orientation 04/01/2011 ML110970152
2010-16-00 Engine Systems, Inc. EMD Diesel Jacket Water Pump with Incorrect Impeller Orientation 04/26/2010 ML101180062
2010-15-01 Waterford Unit 3 High Failure Rate of Normally Energized Tyco Electro-Pneumatic Time Delay Relays 04/29/2010 ML101230323
2010-15-00 Waterford Unit 3 High Failure Rate of Normally Energized Tyco Electro-Pneumatic Time Delay Relays 04/21/2010 EN 45862
2010-14-00 United Controls International Faulty Modulation Index Control (MIC) circuit boards for a Cyberex kVA Model AC Power Supply 04/14/2010 ML101100638
2010-13-01 Tyco Flow Control Failure of a Solenoid Valve Supplied with Crosby Dual Function Main Steam Safety Valves 04/29/2010 ML101270027
2010-13-00 Tyco Flow Control Failure of a Solenoid Valve Supplied with Crosby Dual Function Main Steam Safety Valves 04/02/2010 ML100960449
2010-12-00 Palisades Nuclear Plant Potential Loss of Safety Function Due to a Service Water Pump Shaft Coupling Failure 03/19/2010 ML100810408
2010-11-01 Crane Nuclear, Inc. Notification of a Potential Weld Defect 04/10/2013 ML13102A303
2010-11-00 Crane Nuclear, Inc. Notification of a Potential Weld Defect 03/25/2010 ML100920093
2010-10-01 GE-Hitachi Nuclear Energy Failure of HPCI Turbine Overspeed Reset Control Valve Diaphragm 07/01/2010 ML101820160
2010-10-00 GE-Hitachi Nuclear Energy Interim Report: Failure of HPCI Turbine Overspeed Reset Control Valve Diaphragm 03/22/2010 ML100820059
2010-09-00 Westinghouse Electric Co. Failure of Cutler-Hammer Type ARD 660UR DC Relays to Release When De-Energized 03/19/2010 ML100820434
2010-08-00 Oyster Creek Failure of Tyco/Agastat EGPI004 Relay due to Manufacturing Defect 02/08/2010 ML100541598
2010-07-00 United Controls International Faulty Logic Board for Cyberex 20 KVA Inverter Model AC 02/24/2010 ML100610675
2010-06-01 Oconee Nuclear Station Defect Associated with Welded Stud Attachment to Concrete Embed Plates 03/24/2010 ML100880321
2010-06-00 Oconee Nuclear Station Defect Associated with Welded Stud Attachment to Concrete Embed Plates 02/24/2010 ML100610346
2010-05-01 Westinghouse Electric Company Closure of Interim Report Concerning an Issue in Sump Blockage Generic Tests 03/30/2010 ML100900472
2010-05-00 Westinghouse Electric Company Interim Report Concerning an Issue in Sump Blockage Generic Tests 02/12/2010 ML100480138
2010-04-00 United Controls International Installation of Incorrect Transformer on a Control Board for a Battery Charger 02/12/2010 ML100512907
2010-03-01 ABB Inc. Potential Failure of a Breaker Closing Coil Component to Comply with Design Specifications 03/08/2010 ML101060223
2010-03-00 ABB Inc. Potential Failure of a Breaker Closing Coil Component to Comply with Design Specifications 02/08/2010 ML100512906
2010-02-01 Sulzer Pumps Defect in Pump Shaft Journal Coating 02/01/2010 ML100470023
2010-02-00 Sulzer Pumps Defect in Pump Shaft Journal Coating 01/27/2010 ML100290368
2010-01-01 ABB Inc. Circuit Breaker Charging Motor Crank Does Not Meet Hardness Specifications 02/05/2010 ML100512905
2010-01-00 ABB Circuit Breaker Charging Motor Crank Does Not Meet Hardness Specifications 01/23/2010 ML100251422

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Page Last Reviewed/Updated Wednesday, March 10, 2021