United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notices - 1981

Document Number Title Revision Publish Date Reviewed Date
IN-81-39 EPA Crosscheck Program - Low Level Radioiodine in Water Intercomparison Study -- 12/23/1981 --
IN-81-38 Potentially Significant Equipment Failures Resulting from Contamination of Air-Operated Systems -- 12/17/1981 --
IN-81-37 Unnecessary Radiation Exposures to the Public and Workers During Events Involving Thickness and Level Measuring Devices 1 02/09/1982 --
-- 12/15/1981 --
IN-81-36 Replacement Diaphragms for Robertshaw Valve (Model No. VC-210) -- 12/03/1981 --
IN-81-35 Check Valve Failures -- 12/02/1981 --
IN-81-30 Velan Swing Check Valves -- 09/28/1981 --
IN-81-29 Equipment Qualification Testing Experience -- 09/24/1981 --
IN-81-28 Failure of Rockwell-Edward Main Steam Isolation Valves -- 09/03/1981 --
IN-81-27 Flammable Gas Mixtures in the Waste Gas Decay Tanks in PWR Plants -- 09/03/1981 --
IN-81-26 Compilation of Health Physics Related Information Items S1 07/19/1982 --
-- 08/28/1981 --
IN-81-25 Open Equalizing Valve of Differential Pressure Transmitter Causes Reactor Scram and Loss of Redundant Safety Signals -- 08/24/1981 --
IN-81-24 Auxiliary Feed Pump Turbine Bearing Failures -- 08/05/1981 --
IN-81-23 Fuel Assembly Damaged Due to Improper Positioning of Handling Equipment -- 08/04/1981 --
IN-81-22 Section 235 and 236 Amendments to the Atomic Energy Act of 1954 -- 07/31/1981 --
IN-81-21 Potential Loss of Direct Access to Ultimate Heat Sink -- 07/21/1981 --
IN-81-20 Test Failures of Electrical Penetration Assemblies -- 07/13/1981 --
IN-81-19 Lost Parts in Primary Coolant System -- 07/06/1981 --
IN-81-18 Excessive Radiation Exposures to the Fingers...During Cleaning and Wipe Testing of...Sealed Sources at a...Mfg. Facility -- 06/23/1981 --
IN-81-17   -- Not Issued --
IN-81-16 Control Rod Drive System Malfunctions -- 04/23/1981 --
IN-81-15 Degradation of Automatic ECCS Actuation Capability by Isolation of Instrument Lines -- 04/22/1981 --
IN-81-14 Potential Overstress of Shafts on Fisher Series 9200 Butterfly Valves with Expandable T Rings -- 04/07/1981 --
IN-81-13 Jammed Source Rack in a Gamma Irradiator -- 04/14/1981 --
IN-81-12 Guidance on Order Issued January 9, 1981 Regarding Automatic Control Rod Insertion on Low Control Air Pressure -- 03/31/1981 --
IN-81-11 Alternate Rod Insertion for BWR Scram Represents a Potential Path for Loss of Primary Coolant -- 03/30/1981 --
IN-81-10 Inadvertent Containment Spray Due to Personnel Error -- 03/25/1981 --
IN-81-09 Degradation of Residual Heat Removal (RHR) System -- 03/26/1981 --
IN-81-08 Repetitive Failures of Limitorque Operator SMB-4 Motor-to-Shaft Key -- 03/20/1981 --
IN-81-07 Potential Problem with Water-Soluble Purge Dam Materials Used During Inert Gas Welding -- 03/16/1981 --
IN-81-06 Failure of ITE Model K-600 Circuit Breaker -- 03/11/1981 --
IN-81-05 Degraded DC System at Palisades -- 03/10/1981 --
IN-81-04 Cracking in Main Steam Lines -- 02/27/1981 --
IN-81-03 Checklist for Licensees Making Notifications of Significant Events in Accordance with 10 CFR 50.72 -- 02/12/1981 --
IN-81-02 Transportation of Radiography Devices -- 01/23/1981 --
IN-81-01 Possible Failures of General Electric Type HFA Relays -- 01/16/1981 --
Page Last Reviewed/Updated Tuesday, September 01, 2015