United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notices – 1980

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Document Number Title Revision Publish Date Reviewed Date
IN-80-45 Potential Failure of BWR Backup Manual Scram Capability -- 12/17/1980 --
IN-80-44 Actuation of ECCS in the Recirculation Mode while in Hot Shutdown -- 12/16/1980 --
IN-80-43 Failures of the Continuous Water Level Monitor for the Scram Discharge Volume at Dresden Unit No. 2 -- 12/05/1980 --
IN-80-42 Effect of Radiation on Hydraulic Snubber Fluid -- 11/24/1980 --
IN-80-41 Failure of Swing Check Valve in the Decay Heat Removal System at Davis-Besse Unit No. 1 -- 11/10/1980 --
IN-80-40 Excessive Nitrogen Supply Pressure Actuates Safety-Relief Valve Operation to Cause Reactor Depressurization -- 11/07/1980 --
IN-80-39 Malfunctions of Solenoid Valves Manufactured by Valcor Engineering Corporation -- 10/31/1980 --
IN-80-38 Cracking in Charging Pump Casing Cladding -- 10/31/1980 --
IN-80-37 Containment Cooler Leaks and Reactor Cavity Flooding at Indian Point Unit 2 -- 10/24/1980 --
IN-80-36 Failure of Steam Generator Support Bolting -- 10/10/1980 --
IN-80-35 Leaking and Dislodged Iodine-125 Implant Seeds S1 10/06/1982 --
-- 10/10/1980 --
IN-80-34 Boron Dilution of Reactor Coolant During Steam Generator Decontamination -- 09/26/1980 --
IN-80-33 Determination of Teletherapy Timer Accuracy -- 09/15/1980 --
IN-80-32 Clarification of Certain Requirements for Exclusive-Use Shipments of Radioactive Materials 1 02/12/1982 --
-- 08/29/1980 --
IN-80-31 Maloperation of Gould-Brown Boveri 480 Volt Type K-600S and K-DON 600S Circuit Breakers -- 08/27/1980 --
IN-80-30 Potential for Unacceptable Interaction between Control Rod Drive Scram...and Non-Essential Control Air at GE BWRs -- 08/19/1980 --
IN-80-29 Broken Studs on Terry Turbine Steam Inlet Flange S1 11/26/1980 --
-- 08/07/1980 --
IN-80-28 Prompt Reporting of Information in Accordance with 10 CFR 50.55(e) -- 06/11/1980 --
IN-80-27 Degradation of Reactor Coolant Pump Studs -- 06/11/1980 --
IN-80-26 Evaluation of Contractor QA Programs -- 06/10/1980 --
IN-80-25 Transportation of Pyrophoric Uranium -- 05/30/1980 --
IN-80-24 Low-Level Radioactive Waste Burial Criteria -- 05/30/1980 --
IN-80-23 Loss of Suction to Emergency Feedwater Pumps -- 05/29/1980 --
IN-80-22 Breakdowns in Contamination Control Programs -- 05/28/1980 --
IN-80-21 Anchorage and Support of Safety-Related Electrical Equipment -- 05/16/1980 --
IN-80-20 Loss of Decay Heat Removal Capability at Davis-Besse Unit 1 while in a Refueling Mode -- 05/08/1980 --
IN-80-19 NIOSH Recall of Recirculating-Mode (Closed-Circuit) Self-Contained Breathing Apparatus (Rebreathers) -- 05/06/1980 --
IN-80-18 Possible Weapons Smuggling Pouch -- 05/05/1980 --
IN-80-17 Potential Hazards Associated with Interchangeable Parts on Radiographic Equipment -- 05/05/1980 --
IN-80-16 Shaft Seal Packing Causes Binding in Main Steam Swing Disc Check and Isolation Valves -- 04/29/1980 --
IN-80-15 Axial (Longitudinal) Oriented Cracking in Piping -- 04/21/1980 --
IN-80-14 Safety Suggestions from Employees -- 04/02/1980 --
IN-80-13 General Electric Type SBM Control Switches - Defective Cam Followers -- 04/02/1980 --
IN-80-12 Instrument Failure Causes Opening of PORV and Block Valve -- 03/31/1980 --
IN-80-11 Generic Problems with ASCO Valves in Nuclear Applications Including Fire Protection Systems -- 03/14/1980 --
IN-80-10 Partial Loss of Non-Nuclear Instrument System Power Supply During Operation -- 03/07/1980 --
IN-80-09 Possible Occupational Health Hazard Associated with Closed Cooling Systems for Operating Power Plants -- 03/07/1980 --
IN-80-08 The States Company Sliding Link Electrical Terminal Block -- 03/07/1980 --
IN-80-07 Pump Shaft Fatigue Cracking -- 02/29/1980 --
IN-80-06 Notification of Significant Events S1 07/29/1980 --
-- 02/27/1980 --
IN-80-05 Chloride Contamination of Safety Related Piping and Components -- 02/08/1980 --
IN-80-04 BWR Fuel Exposure in Excess of Limits -- 02/04/1980 --
IN-80-03 Main Turbine Electro-Hydraulic Control System -- 01/31/1980 --
IN-80-02 8X8R Water Rod Lower End Plug Wear -- 01/25/1980 --
IN-80-01 Fuel Handling Events -- 01/04/1980 --
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