United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notices - 1990

Document Number Title Revision Publish Date Reviewed Date
IN-90-82 Requirements for Use of NRC-Approved Packages for Shipment of Type A Quantities of Radioactive Material -- 12/31/1990 --
IN-90-81 Fitness for Duty -- 12/24/1990 --
IN-90-80 Sand Intrusion Resulting in Two Diesel Generators Becoming Inoperable -- 12/21/1990 --
IN-90-79 Failures of Main Steam Isolation Check Valves Resulting in Disc Separation -- 12/20/1990 --
IN-90-78 Previously Unidentified Release Path from Boiling Water Reactor Control Rod Hydraulic Units -- 12/18/1990 --
IN-90-77 Inadvertent Removal of Fuel Assemblies from the Reactor Core S1 02/04/1991 --
-- 12/12/1990 --
IN-90-76 Failure of Turbine Overspeed Trip Mechanism Because of Inadequate Spring Tension -- 12/07/1990 --
IN-90-75 Denial of Access to Current Low-Level Radioactive Waste Disposal Facilities -- 12/05/1990 --
IN-90-74 Information on Precursors to Severe Accidents -- 12/04/1990 --
IN-90-73 Corrosion of Valve-to-Torque Tube Keys in Spray Pond Cross Connect Valves -- 11/29/1990 --
IN-90-72 Testing of Parallel Disc Gate Valves in Europe -- 11/28/1990 --
IN-90-71 Effective Use of Radiation Safety Committees to Exercise Control over Medical Use Programs -- 11/06/1990 --
IN-90-70 Pump Explosions Involving Ammonium Nitrate -- 11/06/1990 --
IN-90-69 Adequacy of Emergency and Essential Lighting -- 10/31/1990 --
IN-90-68 Stress Corrosion Cracking of Reactor Coolant Pump Bolts S1 04/14/1994 --
-- 10/30/1990 --
IN-90-67 Potential Security Equipment Weaknesses -- 10/29/1990 --
IN-90-66 Incomplete Draining and Drying of Shipping Casks -- 10/25/1990 --
IN-90-65 Recent Orifice Plate Problems -- 10/05/1990 --
IN-90-64 Potential for Common-Mode Failure of HPSI Pumps or Release of Reactor Coolant Outside Containment During a LOCA -- 10/04/1990 --
IN-90-63 Management Attention to the Establishment and Maintenance of a Nuclear Criticality Safety Program -- 10/03/1990 --
IN-90-62 Requirements for Import and Distribution of Neutron-Irradiated Gems -- 09/25/1990 --
IN-90-61 Potential for Residual Heat Removal Pump Damage Caused by Parallel Pump Interaction -- 09/20/1990 --
IN-90-60 Availability of Failure Data in the Government-Industry Data Exchange Program -- 09/20/1990 --
IN-90-59 Errors in the Use of Radioactive Iodine-131 -- 09/17/1990 --
IN-90-58 Improper Handling of Ophthalmic Strontium-90 Beta Radiation Applicators -- 09/11/1990 --
IN-90-57 Substandard, Refurbished Potter & Brumfield Relays Misrepresented as New S1 11/27/1991 --
-- 09/05/1990 --
IN-90-56 Inadvertent Shipment of a Radioactive Source in a Container Thought to Be Empty -- 09/04/1990 --
IN-90-55 Recent Operating Experience on Loss of Reactor Coolant Inventory While in a Shutdown Condition -- 08/31/1990 --
IN-90-54 Summary of Requalification Program Deficiencies -- 08/28/1990 --
IN-90-53 Potential Failures of Auxiliary Steam Piping and the Possible Effects on the Operability of Vital Equipment -- 08/16/1990 --
IN-90-52 Retention of Broken Charpy Specimens -- 08/14/1990 --
IN-90-51 Failures of Voltage-Dropping Resistors in the Power Supply Circuitry of Electric Governor Systems S1 10/24/1991 --
-- 08/08/1990 --
IN-90-50 Minimization of Methane Gas in Plant Systems and Radwaste Shipping Containers -- 08/08/1990 --
IN-90-49 Stress Corrosion Cracking in PWR Steam Generator Tubes -- 08/06/1990 --
IN-90-48 Enforcement Policy for Hot Particle Exposures -- 08/02/1990 --
IN-90-47 Unplanned Radiation Exposures to Personnel Extremities Due to Improper Handling of Potentially Highly Radioactive Source -- 07/27/1990 --
IN-90-46 Criminal Prosecution of Wrongdoing Committed by Suppliers of Molded-Case Circuit Breakers and Related Components -- 07/16/1990 --
IN-90-45 Overspeed of the Turbine-Driven Auxiliary Feedwater Pumps and Overpressurization of the Associated Piping System -- 07/06/1990 --
IN-90-44 Dose-Rate Instruments Underresponding to the True Radiation Fields -- 06/29/1990 --
IN-90-43 Mechanical Interference with Thermal Trip Function in GE Molded-Case Circuit Breakers S1 03/13/1991 --
-- 06/29/1990 --
IN-90-42 Failure of Electrical Power Equipment Due to Solar Magnetic Disturbances -- 06/19/1990 --
IN-90-41 Potential Failure of General Electric Magne-Blast Circuit Breakers and AK Circuit Breakers -- 06/12/1990 --
IN-90-40 Results of NRC-Sponsored Testing of Motor-Operated Valves -- 06/05/1990 --
IN-90-39 Recent Problems with Service Water Systems -- 06/01/1990 --
IN-90-38 Requirements for Processing Financial Assurance Submittals for Decommissioning S1 11/06/1990 --
-- 05/29/1990 --
IN-90-37 Sheared Pinion Gear-to-Shaft Keys in Limitorque Motor Actuators -- 05/24/1990 --
IN-90-36 Apparent Falsification of State of Connecticut Weight Certificates -- 05/24/1990 --
IN-90-35 Transportation of Type A Quantities of Non-Fissile Radioactive Materials -- 05/24/1990 --
IN-90-34 Response to False Siren Activations -- 05/10/1990 --
IN-90-33 Sources of Unexpected Occupational Radiation Exposures at Spent Fuel Storage Pools -- 05/09/1990 --
IN-90-32 Surface Crack and Subsurface Indications in the Weld of a Reactor Vessel Head S1 06/19/1990 --
-- 05/03/1990 --
IN-90-31 Update on Waste Form and High Integrity Container ... Review Status, Identification of Problems with Cement Solidification ... Waste Mishaps -- 05/04/1990 --
IN-90-30 Ultrasonic Inspection Techniques for Dissimilar Metal Welds -- 05/01/1990 --
IN-90-29 Cracking of Cladding and its Heat-Affected Zone in the Base Metal of a Reactor Vessel Head -- 04/30/1990 --
IN-90-28 Potential Error in High Steamline Flow Setpoint -- 04/30/1990 --
IN-90-27 Clarification of ... Regulatory Requirements for Packaging of Uranium Hexafluoride (UF6) for Transportation -- 04/30/1990 --
IN-90-26 Inadequate Flow of Essential Service Water to Room Coolers and Heat Exchangers for Engineered Safety-Feature Systems -- 04/24/1990 --
IN-90-25 Loss of Vital AC Power with Subsequent Reactor Coolant System Heat-Up S1 03/11/1991 --
-- 04/16/1990 --
IN-90-24 Transportation of Model SPEC 2-T Radiographic Exposure Device -- 04/10/1990 --
IN-90-23 Improper Installation of Patel Conduit Seals -- 04/04/1990 --
IN-90-22 Unanticipated Equipment Actuations Following Restoration of Power to Rosemount Transmitter Trip Units -- 03/23/1990 --
IN-90-21 Potential Failure of Motor-Operated Butterfly Valves to Operate Because Valve Seat Friction Was Underestimated -- 03/22/1990 --
IN-90-20 Personnel Injuries Resulting from Improper Operation of Radwaste Incinerators -- 03/22/1990 --
IN-90-19 Potential Loss of Effective Volume for Containment Recirculation Spray at PWR Facilities -- 03/14/1990 --
IN-90-18 Potential Problems with Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks -- 03/09/1990 --
IN-90-17 Weight and Center of Gravity Discrepancies for Copes-Vulcan Valves -- 03/08/1990 --
IN-90-16 Compliance with New Decommissioning Rule -- 03/07/1990 --
IN-90-15 Reciprocity: Notification of Agreement State Radiation Control Directors Before Beginning Work in Agreement States -- 03/07/1990 --
IN-90-14 Accidental Disposal of Radioactive Materials -- 03/06/1990 --
IN-90-13 Importance of Review and Analysis of Safeguards Event Logs -- 03/05/1990 --
IN-90-12 Monitoring or Interruption of Plant Communications -- 02/28/1990 --
IN-90-11 Maintenance Deficiency Associated with Solenoid-Operated Valves -- 02/23/1990 --
IN-90-10 Primary Water Stress Corrosion Cracking (PWSCC) of Inconel 600 -- 02/23/1990 --
IN-90-09 Extended Interim Storage of Low-Level Radioactive Waste by Fuel Cycle and Materials Licensees -- 02/05/1990 --
IN-90-08 KR-85 Hazards from Decayed Fuel -- 02/01/1990 --
IN-90-07 New Information Regarding Insulation Material Performance and Debris Blockage of PWR Containment Sumps -- 01/30/1990 --
IN-90-06 Potential for Loss of Shutdown Cooling While at Low Reactor Coolant Levels -- 01/29/1990 --
IN-90-05 Inter-System Discharge of Reactor Coolant -- 01/29/1990 --
IN-90-04 Cracking of the Upper Shell-to-Transition Cone Girth Welds in Steam Generators -- 01/26/1990 --
IN-90-03 Malfunction of Borg-Warner Bolted Bonnet Check Valves Caused by Failure of the Swing Arm -- 01/23/1990 --
IN-90-02 Potential Degradation of Secondary Containment -- 01/22/1990 --
IN-90-01 Importance of Proper Response to Self-Identified Violations by Licensees -- 01/12/1990 --
Page Last Reviewed/Updated Tuesday, September 01, 2015