United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notices - 1986

File Name Date Description
in86108s3 01/05/1995 NRC Information Notice 86-108, Supplement 3: Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion – Supplement 3
in86014s2 08/26/1991 Overspeed Trips of AFW, HPCI, and RCIC Turbines – Supplement 2
in86021s2 04/16/1991 Recognition of American Society of Mechanical Engineers Accreditation Program for N Stamp Holders – Supplement 2
in86099s1 02/14/1991 Degradation of Steel Containments – Supplement 1
in86081s1 01/11/1988 Broken External Closure Springs on Atwood & Morrill Main Steam Isolation Valves – Supplement 1
in86108s2 11/19/1987 Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion – Supplement 2
in86108s1 04/20/1987 Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion – Supplement 1
in86064s1 04/20/1987 Deficiencies in Upgrade Programs for Plant Emergency Operating Conditions – Supplement 1
in86110 12/31/1986 Anomalous Behavior of Recirculation Loop Flow in Jet Pump BWR Plants
in86109 12/29/1986 Diaphragm Failure in Scram Outlet Valve Causing Rod Insertion
in86107 12/29/1986 Entry into PWR Cavity with Retractable Incore Detector Thimbles Withdrawn
in86108 12/29/1986 Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion
in86105 12/19/1986 Potential for Loss of Reactor Trip Capability at Intermediate Power Levels
in86014s1 12/17/1986 Overspeed Trips of AFW, HPCI, and RCIC Turbines – Supplement 1
in86103 12/16/1986 Respirator Coupling Nut Assembly Failures
in86104 12/16/1986 Unqualified Butt Splice Connectors Identified in Qualified Penetrations
in86106s3 11/10/1988 Feedwater Line Break – Supplement 3
in86106s2 03/18/1987 Feedwater Line Break – Supplement 2
in86106s1 02/13/1987 Feedwater Line Break – Supplement 1
in86106 12/16/1986 Feedwater Line Break
in86102 12/15/1986 Repeated Multiple Failures of Steam Generator Hydraulic Snubbers Due to Control Valve Sensitivity
in86101 12/12/1986 Loss of Decay Heat Removal Due to Loss of Fluid Levels in Reactor Coolant System
in86100 12/12/1986 Loss of Offsite Power to Vital Busses at Salem 2
in86099 12/08/1986 Degradation of Steel Containments
in86021s1 12/04/1986 Recognition of American Society of Mechanical Engineers Accreditation Program for N Stamp Holders – Supplement 1
in86098 12/02/1986 Offsite Medical Services
in86097 11/28/1986 Emergency Communications System
in86096 11/20/1986 Heat Exchanger Fouling Can Cause Inadequate Operability of Service Water Systems
in86095 11/10/1986 Leak Testing Iodine-125 Sealed Sources in Lixi, Inc. Imaging Devices and Bone Mineral Analyzers
in86094 11/06/1986 Hilti Concrete Expansion Anchor Bolts
in86082r1 11/04/1986 Failures of Scram Discharge Volume Vent and Drain Valves – Revision 1
in86092 11/04/1986 Pressurizer Safety Valve Reliability
in86093 11/03/1986 IEB 85-03 Evaluation of Motor-Operators Identifies Improper Torque Switch Settings
in86091 11/03/1986 Limiting Access Authorizations
in86090 11/03/1986 Requests to Dispose of Very Low-Level Radioactive Waste Pursuant to 10 CFR 20.302
in86089 10/16/1986 Uncontrolled Rod Withdrawal Because of a Single Failure
in86005s1 10/16/1986 Main Steam Safety Valve Test Failures and Ring Setting Adjustments – Supplement 1
in86025s1 10/15/1986 Traceability and Material Control of Material and Equipment, Particularly Fasteners – Supplement 1
in86088 10/15/1986 Compensatory Measures for Prolonged Periods of Security System Failures
in86087 10/10/1986 Loss of Offsite Power upon an Automatic Bus Transfer
in86086 10/10/1986 Clarification of Requirements for Fabrication and Export of Certain Previously Approved Type B Packages
in86085 10/03/1986 Enforcement Actions Against Medical Licensees for Willfull Failure to Report Misadministrations
in86084 09/30/1986 Rupture of Nominal 40-Millicurie Iodine-125 Brachytherapy Seed Causing Significant Spread of Radioactive Contamination
in86083 09/19/1986 Underground Pathways into Protected Areas, Vital Areas, Material Access Areas, and Controlled Access Areas
in86082 09/16/1986 Failures of Scram Discharge Volume Vent and Drain Valves
in86081 09/15/1986 Broken Inner-External Closure Springs on Atwood & Morrill Main Steam Isolation Valves
in86080 09/12/1986 Unit Startup with Degraded High Pressure Safety Injection System
in86079 09/02/1986 Degradation or Loss of Charging Systems at PWR Nuclear Power Plants Using Swing-Pump Design
in86078 09/02/1986 Scram Solenoid Pilot Valve (SSPV) Rebuild Kit Problems
in86077 08/28/1986 Computer Program Error Report Handling
in86076 08/28/1986 Problems Noted in Control Room Emergency Ventilation Systems
in86075 08/21/1986 Incorrect Maintenance Procedure on Traversing Incore Probe Lines
in86074 08/20/1986 Reduction of Reactor Coolant Inventory because of Misalignment of RHR Valves
in86073 08/20/1986 Recent Emergency Diesel Generator Problems
in86072 08/19/1986 Failure 17-7 PH Stainless Steel Springs in Valcor Valves Due to Hydrogen Embrittlement
in86071 08/19/1986 Recent Identified Problems with Limitorque Motor Operators
in86070 08/18/1986 Potential Failure of All Emergency Diesel Generators
in86069 08/18/1986 Spurious System Isolations Caused by the Panalarm Model 86 Thermocouple Monitor
in86068 08/15/1986 Stuck Control Rod
in86067 08/15/1986 Portable Moisture/Density Gauges: ... Incidents and Common Violations of Requirements for Use, Transportation, and Storage
in86066 08/15/1986 Potential for Failure of Replacement AC Coils ... Westinghouse Electric ... for ... Class 1E Motor Starters and Contactors
in86065 08/14/1986 Malfunctions of ITT Barton Model 580 Series Switches During Requalification Testing
in86064 08/14/1986 Deficiencies in Upgrade Programs for Plant Emergency Operating Procedures
in86063 08/06/1986 Loss of Safety Injection Capability
in86013s1 08/05/1986 Standby Liquid Control System Squib Valves Failure to Fire – Supplement 1
in86062 07/31/1986 Potential Problems in Westinghouse Molded Case Circuit Breakers Equipped with a Shunt Trip
in86061 07/28/1986 Failure of Auxiliary Feedwater Manual Isolation Valve
in86060 07/28/1986 Unanalyzed Post-LOCA Release Paths
in86031s1 07/14/1986 Unauthorized Transfer and Loss of Control of Industrial Nuclear Gauges – Supplement 1
in86059 07/14/1986 Increased Monitoring of ... Patients with Implanted Coratomic, Inc. Model C-100 and C-101 Nuclear-Powered Cardiac Pacemakers
in86058 07/11/1986 Dropped Fuel Assembly
in86057 07/11/1986 Operating Problems with Solenoid Operated Valves at Nuclear Power Plants
in86056 07/10/1986 Reliability of Main Steam Safety Valves
in86055 07/10/1986 Delayed Access to Safety-Related Areas and Equipment During Plant Emergencies
in86054 06/27/1986 Criminal Prosecution ... Former Radiation Safety Officer Who ... Directed an Unqualified Individual to Perform Radiography
in86053 06/26/1986 Improper Installation of Heat Shrinkable Tubing
in86052 06/26/1986 Conductor Insulation Degradation on Foxboro Model E Controllers
in86051 06/18/1986 Excessive Pneumatic Leakage in the Automatic Depressurization System
in86050 06/18/1986 Inadequate Testing to Detect Failures of Safety-Related Pneumatic Components or Systems
in86049 06/16/1986 Age/Environment Induced Electrical Cable Failures
in86048 06/13/1986 Inadequate Testing of Boron Solution Concentration in the Standby Liquid Control System
in86047 06/10/1986 Erratic Behavior of Static "O" Ring Differential Pressure Switches
in86046 06/12/1986 Improper Cleaning and Decontamination of Respiratory Protection Equipment
in86045 06/10/1986 Potential Falsification of Test Reports on Flanges Manufactured by Golden Gate Forge and Flange, Inc.
in86044 06/10/1986 Failure to Follow Procedures when Working in High Radiation Areas
in86043 06/10/1986 Problems with Silver Zeolite Sampling of Airborne Radioiodine
in86042 06/09/1986 Improper Maintenance of Radiation Monitoring Systems
in86041 06/09/1986 Evaluation of Questionable Exposure Readings of Licensee Personnel Dosimeters
in86032s1 06/06/1986 Request for Collection of Licensee Radioactivity Measurements Attributed to the Chernobyl Nuclear Plant Accident – Supplement 1
in86040 06/05/1986 Degraded Ability to Isolate the Reactor Coolant System from Low-Pressure Coolant Systems in BWRs
in86039 05/20/1986 Failures of RHR Pump Motors and Pump Internals
in86038 05/20/1986 Deficient Operator Actions Following Dual Function Valve Failures
in86037 05/16/1986 Degradation of Station Batteries
in86036 05/16/1986 Change in NRC Practice Regarding Issuance of Confirming Letters to Principal Contractors
in86035 05/15/1986 Fire in Compressible Material at Dresden Unit 3
in86034 05/13/1986 Improper Assembly, Material Selection, and Test of Valves and Their Actuators
in86033 05/06/1986 Information for Licensee Regarding the Chernobyl Nuclear Plant Accident
in86031 05/05/1986 Unauthorized Transfer and Loss of Control of Industrial Nuclear Gauges
in86032 05/02/1986 Request for Collection of Licensee Radioactivity Measurements Attributed to the Chernobyl Nuclear Plant Accident
in86030 04/29/1986 Design Limitations of Gaseous Effluent Monitoring Systems
in86029 04/25/1986 Effects of Changing Valve Motor-Operator Switch Settings
in86028 04/24/1986 Telephone Numbers to the NRC Operations Center and Regional Offices
in86027 04/21/1986 Access Control at Nuclear Facilities
in86026 04/17/1986 Potential Problems in Generators Manufactured by Electrical Products Incorporated
in86025 04/11/1986 Traceability and Material Control of Material and Equipment, Particularly Fasteners
in86024 04/11/1986 Respirator Users Notice: Increased Inspection Frequency for Certain Self-Contained Breathing Apparatus Air Cylinders
in86023 04/09/1986 Excessive Skin Exposures Due to Contamination With Hot Particles
in86021 03/31/1986 Recognition of American Society of Mechanical Engineers Accreditation Program for N Stamp Holders
in86022 03/31/1986 Underresponse of Radiation Survey Instrument to High Radiation Fields
in86020 03/28/1986 Low-Level Radioactive Waste Scaling Factors, 10 CFR Part 61
in86018 03/26/1986 NRC On-Scene Response During a Major Emergency
in86017 03/24/1986 Update of Failure of Automatic Sprinkler System Valves to Operate
in86019 03/21/1986 Reactor Coolant Pump Shaft Failure at Crystal River
in86016 03/11/1986 Failures to Identify Containment Leakage Due to Inadequate Local Testing of BWR Vacuum Relief System Valves
in86015 03/10/1986 Loss of Offsite Power Caused by Problems in Fiber Optics Systems
in86014 03/10/1986 PWR Auxiliary Feedwater Pump Turbine Control Problems
in86011 02/25/1986 Inadequate Service Water Protection Against Core Melt Frequency
in86012 02/25/1986 Target Rock Two-Stage SRV Setpoint Drift
in86013 02/21/1986 Standby Liquid Control System Squib Valves Failure to Fire
in86010 02/13/1986 Safety Parameter Display System Malfunctions
in86006 02/03/1986 Failure of Lifting Rig Attachment While Lifting the Upper Guide Structure at St. Lucie Unit 1
in86007 02/03/1986 Lack of ... Instruction and ... Observance of Precautions During Maintenance and Testing of Diesel Generator ... Governors
in86008 02/03/1986 Licensee Event Report (LER) Format Modification
in86009 02/03/1986 Failure of Check and Stop Check Valves Subjected to Low Flow Conditions
in86004 01/31/1986 Transient Due to Loss of Power to Integrated Control System at a Pressurized Water Reactor Designed by Babcock & Wilcox
in86005 01/31/1986 Main Steam Safety Valve Test Failures and Ring Setting Adjustments
in86003 01/14/1986 Potential Deficiencies in Environmental Qualification of Limitorque Motor Valve Operator Wiring
in86001 01/06/1986 Failure of Main Feedwater Check Valves Causes Loss of Feedwater System Integrity and Water-Hammer Damage
in86002 01/06/1986 Failure of Valve Operator Motor During Environmental Qualification Testing
Page Last Reviewed/Updated Tuesday, November 12, 2013