Part 21 Reports

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| 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

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Log No.	Notifier	Description	Report Date	Event No. / Accession No.
2011-56-01	Fisher Controls	Possible Disc Pin Issue on a Fisher Type A11 Butterfly Valve	01/23/2012	ML12025A168
2011-60-00	Entergy Nuclear Operations Inc.	Inoperable Service Water Pump Due to a Faulty Inertia Latch in a DB-50 Supply Breaker (a 10 CFR 50.73 report)	12/01/2011	ML11348A196
2011-57-01	Dresser Consolidated	Capacity Failure of Model 1982 Pressure Relief Valve	01/09/2012	ML12011A050
2011-22-02	Curtiss Wright Flow Control Co.	Potential Defect in Submersible Valve Position Sensors	01/04/2012	ML12006A203
2012-01-00	ATC Nuclear	Defective 48 Volt DC Safety Related Power Supplies	01/03/2012	ML12005A231
2011-50-01	Baldor Electric Co	Motor Power Leads Undersized	12/22/2011	ML12003A224
2011-58-00	USEC	UF6 Accumulator Tank Had Through Wall Cracks that Caused Leakage	12/20/2011	ML11362A352
2011-57-00	Dresser Consolidated	Capacity Failure of Model 1982 Pressure Relief Valve	12/20/2011	ML11361A393
2010-25-05	GE-Hitachi Nuclear Energy	Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance	12/19/2011	ML113530512
2011-59-00	Comanche Peak Unit 2	EDG 2-02 Inoperable Due to Remaining in the Droop Mode Versus Isochronous Mode (a 10 CFR 50.73 report)	12/14/2011	ML11356A220
2011-56-00	Fisher Controls	Possible Disc Pin Issue on a Fisher Type A11 Butterfly Valve	12/13/2011	ML11348A244
2011-55-00	Flowserve	Potential Defective Part in SMB-0 Heavy Spring Pack	12/06/2011	ML11342A072
2011-54-00	Curtiss Wright Flow Control Co.	Defective Spring Clips Used as Seismic Restraints on Two Scientific Modules	12/05/2011	ML11341A060
2009-22-04	Engine Systems, Inc.	AMOT Thermostatic Valve Failure on Cooper Bessemer EDG	12/01/2011	ML11336A369
2011-53-00	Flowserve	Limitorque SMB-5T Actuator Clutch Lug Failure	11/29/2011	ML11334A077
2011-46-01	Louisiana Energy Services	Potentially Undersized Welds on Centrifuge T-Column Base Plate Connectors	11/23/2011	ML11329A081
2011-49-01	Seabrook	General Electric CR-120B Relays Supplied by National Technical Systems Fail Bench Test	11/17/2011	ML11327A010
2011-52-00	North Anna 3	Early Site Permit Postulated Seismic Acceleration is Less than Projected Based on New Information	11/16/2011	ML11321A323
2011-50-00	Baldor Electric Co	Motor Power Leads Undersized	11/09/2011	ML11318A023
2011-49-00	Seabrook	General Electric CR-120B Relays Supplied by National Technical Systems Fail Bench Test	11/01/2011	ML11306A194
2011-46-00	Louisiana Energy Services	Potentially Undersized Welds on Centrifuge T-Column Base Plate Connectors	10/21/2011	ML11298A191
2011-45-00	Engine Systems, Inc.	Emergency Diesel Generator Piston Delamination	10/18/2011	ML11298A190
2011-51-00	Browns Ferry	GE HGA Relay Failure Causes Core Spray to be Inoperable (a 10 CFR 50.73 Report)	10/14/2011	ML11287A036
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
2011-44-00	ATC Nuclear	Notification of Defective Moore 535 Controllers	10/06/2011	ML11284A017
2011-47-00	Palisades	Service Water Pump Shaft Coupling Failure (a 10 CFR 50.73 Report)	10/03/2011	ML112760550
2011-43-00	Ametek SolidState Controls	Diode Failures Due to Deterioration	09/28/2011	ML11277A271
2011-23-01	ABB, Inc.	SS5 Solid State Relays Trip Below Expected Current	09/28/2011	ML11273A048
2011-48-00	Waterford	Vendor Notification of Non-Conforming Part Renders Both Trains of QSPDS Inoperable (a 10 CFR 50.73 Report)	09/26/2011	ML11272A035
2010-25-04	GE-Hitachi Nuclear Energy	Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance	09/26/2011	ML112700066
2011-41-01	Emerson Process Management, LLC	Possible Weld Rod Certification Issues	09/07/2011	ML11252B082
2011-42-00	Rosemount Nuclear Instruments	Notification that Certain Rosemount Pressure Transmitters May Not Perform Their Intended Safety Function	09/06/2011	ML11251A198