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
in86014s2	08/26/1991	Overspeed Trips of AFW, HPCI, and RCIC Turbines
in86021s2	04/16/1991	Recognition of American Society of Mechanical Engineers Accreditation Program for N Stamp Holders
in86099s1	02/14/1991	Degradation of Steel Containments
in86081s1	01/11/1988	Broken External Closure Springs on Atwood & Morrill Main Steam Isolation Valves
in86108s2	11/19/1987	Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion
in86108s1	04/20/1987	Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion
in86064s1	04/20/1987	Deficiencies in Upgrade Programs for Plant Emergency Operating Conditions
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in86107	12/29/1986	Entry into PWR Cavity with Retractable Incore Detector Thimbles Withdrawn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
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
in86106s2	03/18/1987	Feedwater Line Break
in86106s1	02/13/1987	Feedwater Line Break
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
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
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
in86025s1	10/15/1986	Traceability and Material Control of Material and Equipment, Particularly Fasteners
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 Designs
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
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
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
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