United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notices - 1989

File Name Date Description
in8969s1 PDF Icon 08/25/2003 Shadow Corrosion Resulting in Fuel Channel Bowing – Supplement 1
in89025r1 12/07/1994 Unauthorized Transfer of Ownership or Control of Licensed Activities – Revision 1
in89077s1 12/03/1993 Debris in Containment Emergency Sumps and Incorrect Screen Configurations – Supplement 1
in89090s2 09/05/1991 Pressurizer Safety Valve Lift Setpoint Shift – Supplement 2
in89056s2 07/19/1991 Questionable Certification of Material Supplied to the Defense Department by Nuclear Suppliers – Supplement 2
in89090s1 04/03/1991 Pressurizer Safety Valve Lift Setpoint Shift – Supplement 1
in89032s1 02/12/1991 Surveillance Testing on Low-Temperature Overpressure-Protection Systems – Supplement 1
in89030s1 11/01/1990 High Temperature Environments at Nuclear Power Plants – Supplement 1
in89079s1 06/29/1990 Degraded Coatings and Corrosion of Steel Containment Vessels – Supplement 1
in89070s1 04/26/1990 Possible Indications of Misrepresented Vendor Products – Supplement 1
in89059s2 03/07/1990 Suppliers of Potentially Misrepresented Fasteners – Supplement 2
in89090 12/28/1989 Pressurizer Safety Valve Lift Setpoint Shift
in89089 12/26/1989 Event Notification Worksheets
in89088 12/26/1989 Recent NRC-Sponsored Testing of Motor-Operated Valves
in89087 12/19/1989 Disabling of Emergency Diesel Generators by Their Neutral Ground-Fault Protection Circuitry
in89085 12/15/1989 EPA's Interim Final Rule on Medical Waste Tracking and Management
in89086 12/15/1989 Type HK Circuit Breakers Missing Close Latch Anti-Shock Springs
in89045s2 12/15/1989 Metalclad, Low-Voltage Power Circuit Breakers Refurbished with Substandard Parts – Supplement 2
in89084 12/12/1989 Failure of Ingersoll Rand Air Start Motors as a Result of Pinion Gear Assembly Fitting Problems
in89083 12/11/1989 Sustained Degraded Voltage on the Offsite Grid and Loss of Other Generating Stations as a Result of a Plant Trip
in89082 12/07/1989 Recent Safety-Related Incidents at Large Irradiators
in89081 12/06/1989 Inadequate Control of Temporary Modifications to Safety-Related Systems
in89059s1 12/06/1989 Suppliers of Potentially Misrepresented Fasteners – Supplement 1
in89080 12/01/1989 Potential for Water Hammer, Thermal Stratification, and Steam Binding in High-Pressure Coolant Injection Piping
in89079 12/01/1989 Degraded Coatings and Corrosion of Steel Containment Vessels
in89078 11/22/1989 Failure of Packing Nuts on One-Inch Uranuim Hexafluoride Cylinder Valves
in89056s1 11/22/1989 Questionable Certification of Material Supplied to the Defense Department by Nuclear Suppliers – Supplement 1
in89077 11/21/1989 Debris in Containment Emergency Sumps and Incorrect Screen Configurations
in89076 11/21/1989 Biofouling Agent: Zebra Mussel
in89075 11/20/1989 Falsification of Welder Qualifications for Contractor Employees
in89074 11/07/1989 Clarification of Transportation Requirements Applicable to Return of Spent Radiopharmacy Dosages from Users to Suppliers
in89073 11/01/1989 Potental Overpressurization of Low Pressure Systems
in89072 10/24/1989 Failure of Licensed Senior Operators to Classify Emergency Events Properly
in89071 10/19/1989 Diversion of the Residual Heat Removal Pump Seal Cooling Water Flow During Recirculation Operation Following a LOCA
in89070 10/11/1989 Possible Indications of Misrepresentated Vendor Products
in89069 09/29/1989 Loss of Thermal Margin Caused by Channel Box Bow
in89068 09/25/1989 Evaluation of Instrument Setpoints During Modifications
in89067 09/13/1989 Loss of Residual Heat Removal Caused by Accumulator Nitrogen Injection
in89066 09/11/1989 Qualification Life of Solenoid Valves
in89065 09/08/1989 Potential for Stress Corrosion Cracking in Steam Generator Tube Plugs Supplied by Babcock and Wilcox
in89064 09/07/1989 Electrical Bus Bar Failures
in89063 09/05/1989 Possible Submergence of Electrical Circuits Located Above the Flood Level Because of Water Intrusion and Lack of Drainage
in89062 08/31/1989 Malfunction of Borg-Warner Pressure Seal Bonnet Check Valves Caused by Vertical Misalignment of Disk
in89061 08/30/1989 Failure of Borg-Warner Gate Valves to Close Against Differential Pressure
in89060 08/18/1989 Maintenance of Teletherepy Units
in89059 08/16/1989 Suppliers of Potentially Misrepresented Fasteners
in89058 08/03/1989 Disablement of Turbine-Driven Auxiliary Feedwater Pump Due to Closure of One of the Parrellel Steam Supply Valves
in89057 07/26/1989 Unqualified Electrical Splices in Vendor-Supplied Environmentally Qualified Equipment
in89056 07/20/1989 Questionable Certification of Material Supplied to the Defense Department by Nuclear Suppliers
in89045s1 07/06/1989 Metalclad, Low-Voltage Power Circuit Breakers Refurbished with Substandard Parts – Supplement 1
in89055 06/30/1989 Degradation of Containment Isolation Capability by a High-Energy Line Break
in89054 06/23/1989 Potential Overpressurization of the Component Cooling Water System
in89053 06/13/1989 Rupture of Extraction Steam Line on High Pressure Turbine
in89052 06/08/1989 Potential Fire Damper Operational Problems
in89051 05/31/1989 Potential Loss of Required Shutdown Margin During Refueling Operations
in89050 05/30/1989 Inadequate Emergency Diesel Generator Fuel Supply
in89049 05/22/1989 Failure to Close Service Water Cross-Connect Isolation Valves
in89048 05/22/1989 Design Deficiency in the Turbine-Driven Auxiliary Feedwater Pump Cooling Water System
in89047 05/18/1989 Potential Problems with Worn or Distorted Hose Clamps on Self-Contained Breathing Apparatus
in89046 05/11/1989 Confidentiality of Exercise Scenarios
in89045 05/08/1989 Metalclad, Low-Voltage Power Circuit Breakers Refurbished with Substandard Parts
in89043 05/01/1989 Permanent Deformation of Torque Switch Helical Springs in Limitorque SMA-Type Motor Operators
in89044 04/27/1989 Hydrogen Storage on the Roof of the Control Room
in89042 04/21/1989 Failure of Rosemount Models 1153 and 1154 Transmitters
in89041 04/20/1989 Operator Response to Pressurization of Low-Pressure Interfacing Systems
in89040 04/14/1989 Unsatisfactory Operator Test Results and Their Effect on the Requalification Program
in89038 04/05/1989 Atmospheric Dump Valve Failures at Palo Verde Units 1, 2, and 3
in89039 04/05/1989 List of Parties Excluded from Federal Procurement or Non-Procurement Programs
in89037 04/04/1989 Proposed Amendments to 40 CFR Part 61, Air Emission Standards for Radionuclides
in89036 04/04/1989 Excessive Temperature in Emergency Core Cooling System Piping Located Outside Containment
in89034 03/30/1989 Disposal of Americium Well-Logging Sources
in89035 03/30/1989 Loss and Theft of Unsecured Licensed Material
in89033 03/23/1989 Potential Failure of Westinghouse Steam Generator Tube Mechanical Plugs
in89032 03/23/1989 Surveillance Testing of Low-Temperature Overpressure Protection Systems
in89031 03/22/1989 Swelling and Cracking of Hafnium Control Rods
in89030 03/15/1989 High Temperature Environments at Nuclear Power Plants
in89029 03/15/1989 Potential Failure of ASEA Brown Boveri Circuit Breakers During Seismic Event
in89028 03/14/1989 Weight and Center of Gravity Discrepancies for Copes-Vulcan Air-Operated Valves
in89027 03/08/1989 Limitations on the Use of Waste Forms and High Integrity Containers for the Disposal of Low-Level Radioactive Waste
in89026 03/07/1989 Instrument Air Supply to Safety-Related Equipment
in89025 03/07/1989 Unauthorized Transfer of Ownership or Control of Licensed Activities
in89024 03/06/1989 Nuclear Criticality Safety
in89023 03/03/1989 Environmental Qualification of Litton-Veam CIR Series Electrical Connectors
in89022 03/03/1989 Questionable Certification of Fasteners
in89021 02/27/1989 Changes in Performance Characteristics of Molded-Case Circuit Breakers
in89020 02/24/1989 Weld Failures in a Pump of Byron-Jackson Design
in89018s1PDF Icon 08/24/1990 Criminal Prosecution of Wrongdoing Committed by Suppliers of Nuclear Products or Services – Supplement 1
in89018 02/22/1989 Criminal Prosecution of Wrongdoing Committed by Suppliers of Nuclear Products or Services
in89017 02/22/1989 Contamination and Degradation of Safety-Related Battery Cells
in89016 02/16/1989 Excessive Voltage Drop in DC Systems
in89015 02/16/1989 Second Reactor Coolant Pump Shaft Failure at Crystal River
in89014 02/16/1989 Inadequate Dedication Process for Commercial-Grade Components which Could Lead to Common Mode Failure of a Safety System
in89012 02/09/1989 Dose Calibrator Quality Control
in89013 02/08/1989 Alternate Waste Management Procedures in Case of Denial of Access to Low-Level Waste Disposal Sites
in89011 02/02/1989 Failure of DC Motor-Operated Valves to Develop Rated Torque Because of Improper Cable Sizing
in89010 01/27/1989 Undetected Installation Errors in Main Steam Line Tunnel Differential Temperature-Sensing Elements at BWRs
in89009 01/26/1989 Credit for Control Rods Without Scram Capability in the Calculation of the Shutdown Margin
in89008 01/26/1989 Pump Damage Caused by Low-Flow Operation
in89007 01/25/1989 Failures of Small-Diameter Tubing in Control Air, Fuel Oil, and Lube Oil Systems Render Emergency Diesels Inoperable
in89006 01/24/1989 Bent Anchor Bolts in Boiling Water Reactor Torus Supports
in89005 01/19/1989 Use of Deadly Force by Guards Protecting Nuclear Power Reactors Against Radiological Sabatoge
in89004 01/17/1989 Potential Problems from the Use of Space Heaters
in89003 01/11/1989 Potential Electrical Equipment Problems
in89002 01/09/1989 Criminal Prosecution of Licensee's Former President for Intentional Safety Violations
in89001 01/04/1989 Valve Body Erosion
Page Last Reviewed/Updated Tuesday, November 12, 2013