Information Notices - 1990
| File Name | Date | Description |
|---|---|---|
| in90068s1 | 04/14/1994 | Stress Corrosion Cracking of Reactor Coolant Pump Bolts |
| in90057s1 | 11/27/1991 | Substandard, Refurbished Potter & Brumfield Relays Represented as New |
| in90051s1 | 10/24/1991 | Failures of Voltage-Dropping Resistors in the Power Supply Circuitry of Electric Governor Systems |
| in90043s1 | 03/13/1991 | Mechanical Interference with Thermal Trip Function in GE Molded-Case Circuit Breakers |
| in90025s1 | 03/11/1991 | Loss of Vital AC Power with Subsequent Reactor Coolant System Heat-Up |
| in90077s1 | 02/04/1991 | Inadvertent Removal of Fuel Assemblies from the Reactor Core |
| in90082 | 12/31/1990 | Requirements for Use of NRC-Approved Packages for Shipment of Type A Quantities of Radioactive Material |
| in90081 | 12/24/1990 | Fitness for Duty |
| in90080 | 12/21/1990 | Sand Intrusion Resulting in Two Diesel Generators Becoming Inoperable |
| in90079 | 12/20/1990 | Failures of Main Steam Isolation Check Valves Resulting in Disc Separation |
| in90078 | 12/18/1990 | Previously Unidentified Release Path from Boiling Water Reactor Control Rod Hydraulic Units |
| in90077 | 12/12/1990 | Inadvertent Removal of Fuel Assemblies from the Reactor Core |
| in90076 | 12/07/1990 | Failure of Turbine Overspeed Trip Mechanism Because of Inadequate Spring Tension |
| in90075 | 12/05/1990 | Denial of Access to Current Low-Level Radioactive Waste Disposal Facilities |
| in90074 | 12/04/1990 | Information on Precursors to Severe Accidents |
| in90073 | 11/29/1990 | Corrosion of Valve-to-Torque Tube Keys in Spray Pond Cross Connect Valves |
| in90072 | 11/28/1990 | Testing of Parallel Disc Gate Valves in Europe |
| in90071 | 11/06/1990 | Effective Use of Radiation Safety Committees to Exercise Control over Medical Use Programs |
| in90038s1 | 11/06/1990 | License and Fee Requirements for Processing Financial Assurance Submittals for Decommissioning |
| in90070 | 11/06/1990 | Pump Explosions Involving Ammonium Nitrate |
| in90069 | 10/31/1990 | Adequacy of Emergency and Essential Lighting |
| in90068 | 10/30/1990 | Stress Corrosion Cracking of Reactor Coolant Pump Bolts |
| in90067 | 10/29/1990 | Potential Security Equipment Weaknesses |
| in90066 | 10/25/1990 | Incomplete Draining and Drying of Shipping Casks |
| in90065 | 10/05/1990 | Recent Orifice Plate Problems |
| in90064 | 10/04/1990 | Potential for Common-Mode Failure of HPSI Pumps or Release of Reactor Coolant Outside Containment During a LOCA |
| in90063 | 10/03/1990 | Management Attention to the Establishment and Maintenance of a Nuclear Criticality Safety Program |
| in90062 | 09/25/1990 | Requirements for Import and Distribution of Neutron-Irradiated Gems |
| in90061 | 09/20/1990 | Potential for Residual Heat Removal Pump Damage Caused by Parallel Pump Interaction |
| in90060 | 09/20/1990 | Availability of Failure Data in the Government-Industry Data Exchange Program |
| in90059 | 09/17/1990 | Errors in the Use of Radioactive Iodine-131 |
| in90058 | 09/11/1990 | Improper Handling of Ophthalmic Strontium-90 Beta Radiation Applicators |
| in90057 | 09/05/1990 | Substandard, Refurbished Potter & Brumfield Relays Misrepresented as New |
| in90056 | 09/04/1990 | Inadvertent Shipment of a Radioactive Source in a Container Thought to Be Empty |
| in90055 | 08/31/1990 | Recent Operating Experience on Loss of Reactor Coolant Inventory While in a Shutdown Condition |
| in90054 | 08/28/1990 | Summary of Requalification Program Deficiencies |
| in90053 | 08/16/1990 | Potential Failures of Auxiliary Steam Piping and the Possible Effects on the Operability of Vital Equipment |
| in90052 | 08/14/1990 | Retention of Broken Charpy Specimens |
| in90051 | 08/08/1990 | Failures of Voltage-Dropping Resistors in the Power Supply Circuitry of Electric Governor Systems |
| in90050 | 08/08/1990 | Minimization of Methane Gas in Plant Systems and Radwaste Shipping Containers |
| in90049 | 08/06/1990 | Stress Corrosion Cracking in PWR Steam Generator Tubes |
| in90048 | 08/02/1990 | Enforcement Policy for Hot Particle Exposures |
| in90047 | 07/27/1990 | Unplanned Radiation Exposures to Personnel Extremities Due to Improper Handling of Potentially Highly Radioactive Source |
| in90046 | 07/16/1990 | Criminal Prosecution of Wrongdoing Committed by Suppliers of Molded-Case Circuit Breakers and Related Components |
| in90045 | 07/06/1990 | Overspeed of the Turbine-Driven Auxiliary Feedwater Pumps and Overpressurization of the Associated Piping System |
| in90044 | 06/29/1990 | Dose-Rate Instruments Underresponding to the True Radiation Fields |
| in90043 | 06/29/1990 | Mechanical Interference with Thermal Trip Function in GE Molded-Case Circuit Breakers |
| in90042 | 06/19/1990 | Failure of Electrical Power Equipment Due to Solar Magnetic Disturbances |
| in90032s1 | 06/19/1990 | Surface Crack and Subsurface Indications in the Weld of a Reactor Vessel Head |
| in90041 | 06/12/1990 | Potential Failure of General Electric Magne-Blast Circuit Breakers and AK Circuit Breakers |
| in90040 | 06/05/1990 | Results of NRC-Sponsored Testing of Motor-Operated Valves |
| in90039 | 06/01/1990 | Recent Problems with Service Water Systems |
| in90038 | 05/29/1990 | Requirements for Processing Financial Assurance Submittals for Decommissioning |
| in90037 | 05/24/1990 | Sheared Pinion Gear-to-Shaft Keys in Limitorque Motor Actuators |
| in90036 | 05/24/1990 | Apparent Falsification of State of Connecticut Weight Certificates |
| in90035 | 05/24/1990 | Transportation of Type A Quantities of Non-Fissile Radioactive Materials |
| in90034 | 05/10/1990 | Response to False Siren Activations |
| in90033 | 05/09/1990 | Sources of Unexpected Occupational Radiation Exposures at Spent Fuel Storage Pools |
| in90032 | 05/03/1990 | Surface Crack and Subsurface Indications in the Weld of a Reactor Vessel Head |
| in90031 | 05/04/1990 | Update on Waste Form and High Integrity Container ... Review Status, Identification of Problems with Cement Solidification ... Waste Mishaps |
| in90030 | 05/01/1990 | Ultrasonic Inspection Techniques for Dissimilar Metal Welds |
| in90029 | 04/30/1990 | Cracking of Cladding and its Heat-Affected Zone in the Base Metal of a Reactor Vessel Head |
| in90028 | 04/30/1990 | Potential Error in High Steamline Flow Setpoint |
| in90027 | 04/30/1990 | Clarification of ... Regulatory Requirements for Packaging of Uranium Hexafluoride (UF6) for Transportation |
| in90026 | 04/24/1990 | Inadequate Flow of Essential Service Water to Room Coolers and Heat Exchangers for Engineered Safety-Feature Systems |
| in90025 | 04/16/1990 | Loss of Vital AC Power with Subsequent Reactor Coolant System Heat-Up |
| in90024 | 04/10/1990 | Transportation of Model SPEC 2-T Radiographic Exposure Device |
| in90023 | 04/04/1990 | Improper Installation of Patel Conduit Seals |
| in90022 | 03/23/1990 | Unanticipated Equipment Actuations Following Restoration of Power to Rosemount Transmitter Trip Units |
| in90020 | 03/22/1990 | Personnel Injuries Resulting from Improper Operation of Radwaste Incinerators |
| in90021 | 03/22/1990 | Potential Failure of Motor-Operated Butterfly Valves to Operate Because Valve Seat Friction Was Underestimated |
| in90019 | 03/14/1990 | Potential Loss of Effective Volume for Containment Recirculation Spray at PWR Facilities |
| in90018 | 03/09/1990 | Potential Problems with Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks |
| in90017 | 03/08/1990 | Weight and Center of Gravity Discrepancies for Copes-Vulcan Valves |
| in90016 | 03/07/1990 | Compliance with New Decommissioning Rule |
| in90015 | 03/07/1990 | Reciprocity: Notification of Agreement State Radiation Control Directors Before Beginning Work in Agreement States |
| in90014 | 03/06/1990 | Accidental Disposal of Radioactive Materials |
| in90013 | 03/05/1990 | Importance of Review and Analysis of Safeguards Event Logs |
| in90012 | 02/28/1990 | Monitoring or Interruption of Plant Communications |
| in90011 | 02/23/1990 | Maintenance Deficiency Associated with Solenoid-Operated Valves |
| in90010 | 02/23/1990 | Primary Water Stress Corrosion Cracking (PWSCC) of Inconel 600 |
| in90009 | 02/05/1990 | Extended Interim Storage of Low-Level Radioactive Waste by Fuel Cycle and Materials Licensees |
| in90008 | 02/01/1990 | KR-85 Hazards from Decayed Fuel |
| in90007 | 01/30/1990 | New Information Regarding Insulation Material Performance and Debris Blockage of PWR Containment Sumps |
| in90006 | 01/29/1990 | Potential for Loss of Shutdown Cooling While at Low Reactor Coolant Levels |
| in90005 | 01/29/1990 | Inter-System Discharge of Reactor Coolant |
| in90004 | 01/26/1990 | Cracking of the Upper Shell-to-Transition Cone Girth Welds in Steam Generators |
| in90003 | 01/23/1990 | Malfunction of Borg-Warner Bolted Bonnet Check Valves Caused by Failure of the Swing Arm |
| in90002 | 01/22/1990 | Potential Degradation of Secondary Containment |
| in90001 | 01/12/1990 | Importance of Proper Response to Self-Identified Violations by Licensees |
Page Last Reviewed/Updated Thursday, March 29, 2012
