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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.
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| Log No. | Notifier | Description | Report Date | Event No. / Accession No. |
|---|---|---|---|---|
| 2012-42-00 | GE Hitachi Nuclear Energy | Error in Main Steam Line High Flow Calculation Methodology (Interim Report). |
09/27/2012 | ML12271A314 |
| 2012-41-00 | The Shaw Group Inc. | Interim Part 21 Report Regarding Embedments for AP1000 Project Vogtle Units 3 and 4 | 09/19/2012 | ML12268A177 |
| 2012-31-02 | Qualtech NP | TYCO Model CNT-35-96 Timing Relay Will Not Trip at a Specific Setting (Revision to Notification) | 09/10/2012 | ML12258A399 |
| 2012-22-02 | Watts Bar 1 | Unexpected Degradation of Vital Batteries III and IV | 09/10/2012 | ML12261A473 |
| 2012-40-00 | Ametek Solidstate Controls | Notification of Potential Defect in 10 KVA Inverter Model 86VC0100-15 | 09/07/2012 | ML12255A052 |
| 2012-14-02 | Mitsubishi Nuclear Energy Systems | Steam Generator Tube Wear (SONGS 2) | 09/07/2012 | ML12255A053 |
| 2012-18-02 | Mitsubishi Nuclear Energy Systems | Steam Generator Tube Wear Adjacent to Retainer Bars (San Onofre 3) | 09/07/2012 | ML12255A054 |
| 2012-37-00 | Westinghouse Electric Company | Stress Corrosion Cracking Causing Relay Failure in Safety Related Systems | 08/23/2012 | ML12243A187 |
| 2012-38-00 | Crystal River Unit 3 | Mechanical Seal Failure on a new Engine-Driven Diesel Fuel Pump | 08/21/2012 | ML12240A011 |
| 2012-39-00 | Comanche Peak | Failure of Safety Related Breaker Control Devices Due to a Common Cause (a 50.73 report that also constitutes a 10 CFR 21 notification) | 08/16/2012 | ML12240A050 |
| 2012-34-00 | ITT Enidine | ITT Conoflow Model GFH25 Pneumatic Filter Regulators Fail to Comply with Specifications | 08/07/2012 | EN 48164 |
| 2012-33-00 | ITT Enidine | ITT Conoflow Model GT25 Series Current to Pressure Transducers Fail to Comply with Specifications | 08/07/2012 | EN 48163 |
| 2012-32-00 | Flowserve | Defective Valve Seal Cap On Y-Type Globe Valves | 08/03/2012 | ML12219A231 |
| 2012-31-01 | Qualtech NP | TYCO Model CNT-35-96 Timing Relay Will Not Trip at a Specific Setting (Revision to Notification) | 08/02/2012 | ML12226A002 |
| 2012-36-00 | Waterford 3 | Drift of I/P Transducer Causes Inoperability of Safety Related System (a 50.73 report that also constitutes a 10 CFR 21 Interim notification). | 07/31/2012 | ML12214A257 |
| 2012-31-00 | Qualtech NP | TYCO Model CNT-35-96 Timing Relay Will Not Trip at a Specific Setting | 07/31/2012 | ML12215A320 |
| 2012-22-01 | Watts Bar 1 | Unexpected Degradation of Vital Batteries III and IV | 07/24/2012 | ML12206A055 |
| 2012-35-00 | Nine Mile Point | Loss of Isolation Function on RHR Shutdown Cooling Suction Line due to Breaker Trip (a 50.73 report that also constitutes a 10 CFR 21 notification). | 07/23/2012 | ML12214A396 |
| 2012-24-01 | RSCC Wire & Cable, LLC | Firezone 3HR 600V Cable May Not Function as Tested and Qualified | 07/20/2012 | ML12214A359 |
| 2012-30-00 | Shaw Areva MOX Services | Thermally Sensitized Piping Fails ASTM A262 Tests to Detect Susceptibility to Intergranular Attack (Interim Report) | 07/12/2012 | ML12198A010 |
| 2012-29-01 | Fort Calhoun Station | Defective General Electric CR105X300 Auxiliary Contactor | 07/11/2012 | ML12199A222 |
| 2011-44-01 | ATC Nuclear | Notification of Defective Moore 535 Controllers | 07/07/2012 | ML121910333 |
| 2012-29-00 | Fort Calhoun Station | Defective General Electric CR105X300 Auxiliary Contactor | 07/06/2012 | ML121910230 |
| 2012-28-00 | Nutherm International | Potential Failures of Kraus and Naimer (K&N) M470 Spring Return Switches | 07/02/2012 | ML121910334 |
| 2011-55-01 | Flowserve | Potential Defective Part in Limitorque SMB-0 Heavy Spring Pack | 06/27/2012 | ML12181A143 |
| 2012-27-00 | Rosemount Nuclear | Reliability Degradation Of Resistors In Trip Units And Readout Assemblies | 06/21/2012 | ML12177A056 |
| 2012-25-02 | Shaw Group Inc | Ductility of Reinforcing Steel for Embedments not in Accordance with Code Requirement (Rebuttal clarification by Joseph Oat Corporation). | 06/13/2012 | ML12171A203 |
| 2012-25-01 | Shaw Group Inc | Ductility of Reinforcing Steel for Embedments not in Accordance with Code Requirement (Rebuttal by Joseph Oat Corporation). | 06/13/2012 | ML12166A477 |
| 2012-26-00 | Flowserve | Potentially Reduced Flow Capacity in WKM Pilot Operated Relief Valves in Sizes 2 Inches and Above | 06/07/2012 | ML12160A364 |
| 2012-02-01 | GE-Hitachi Nuclear Energy | Failure of CRD Collet Retainer Tube/Outer Tube Weld. | 06/06/2012 | ML12163A130 |
| 2012-18-01 | Mitsubishi Nuclear Energy Systems | Steam Generator Tube Wear Adjacent to Retainer Bars (San Onofre 3) | 06/04/2012 | ML12157A311 |
| 2012-14-01 | Mitsubishi Nuclear Energy Systems | Steam Generator Tube Wear (SONGS 2) | 06/04/2012 | ML12157A310 |
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Page Last Reviewed/Updated Monday, October 01, 2012
