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Information Notices - 2006

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Document Number Title Revision Publish Date Reviewed Date
IN-06-31 Inadequate Fault Interrupting Rating of Breakers -- 12/26/2006 --
IN-06-30 Summary of Fitness-for-duty Program Performance Reports for Calendar Years 2004 and 2005 -- 12/21/2006 --
IN-06-29 Potential Common Cause Failure of Motor-operated Valves as a Result of Stem nut Wear -- 12/14/2006 --
IN-06-28 Siren System Failures Due to Erroneous Siren System Signal -- 12/22/2006 --
IN-06-27 Circumferential Cracking in the Stainless Steel Pressurizer Heater Sleeves of Pressurized Water Reactors -- 12/11/2006 --
IN-06-26 Failure of Magnesium Rotors in Motor-operated Valve Actuators -- 11/20/2006 --
IN-06-25 Lessons Learned From NRC Inspection Of Control and Accounting Of Special Nuclear Material At Commercial Nuclear Power Reactors -- 11/14/2006 --
IN-06-24 Recent Operating Experience Associated with Pressure and Main Steam Safety/Relief Valve Lift Setpoints -- 11/14/2006 --
IN-06-23 Events Involving Potential Tampering Or Malfeasance By Persons Granted Unescorted Access -- 11/07/2006 --
IN-06-22 New Ultra-low-sulfur Diesel Fuel Oil Could Adversely Impact Diesel Engine Performance -- 10/12/2006 --
IN-06-21 Operating Experience Regarding Entrainment of Air into Emergency Core Cooling and Containment Spray Systems -- 09/21/2006 --
IN-06-20 Foreign Material Found in the Emergency Core Cooling System -- 10/16/2006 --
IN-06-19 Leaking Fuel Element Causes False Indication of Steam Dryer Leakage in Boiling-Water Reactor -- 08/24/2006 --
IN-06-18 Significant Loss of Safety-Related Electrical Power at Forsmark, Unit 1, in Sweden S1 08/10/2007 --
-- 08/17/2006 --
IN-06-17 Recent Operating Experience of Service Water Systems Due to External Conditions -- 07/31/2006 --
IN-06-16 Implementing Search Requirements for Personnel, Packages and Material at NRC-Licensed Facilities -- 07/28/2006 --
IN-06-15 Vibration-Induced Degradation and Failure of Safety-Related Valves -- 07/27/2006 --
IN-06-14 Potentially Defective External Lead-Wire Connections in Barton Pressure Transmitters S1 09/25/2006 --
-- 07/10/2006 --
IN-06-13 Ground-Water Contamination Due to Undetected Leakage of Radioactive Water -- 07/10/2006 --
IN-06-12 Exercising Due Diligence when Transferring Radioactive Materials -- 07/06/2006 --
IN-06-11 Applicability of Patient Intervention in Determining Medical Events for Gamma Stereotactic Radiosurgery and Other Therapy Procedures -- 06/12/2006 --
IN-06-10 Use of Concentration Control for Criticality Safety -- 04/23/2006 --
IN-06-09 Performance of NRC-Licensed Individuals while on Duty with Respect to Control Room Attentiveness -- 04/11/2006 --
IN-06-08 Secondary Piping Rupture at the Mihama Power Station in Japan -- 03/16/2006 --
IN-06-07 Inappropriate Use of a Single-Parameter Limit as a Nuclear Criticality Safety Limit -- 03/31/2006 --
IN-06-06 Loss of Offsite Power and Station Blackout Are More Probable During Summer Period -- 03/03/2006 --
IN-06-05 Possible Defect in Bussmann KWN-R AND KTN-R Fuses -- 03/03/2006 --
IN-06-04 Design Deficiency in Pressurizer Heaters for Pressurized-Water Reactors -- 02/13/2006 --
IN-06-03 Motor Starter Failures Due to Mechanical-Interlock Binding -- 01/25/2006 --
IN-06-02 Use of Galvanized Supports and Cable Trays with Meggitt Si 2400 Stainless-Steel-Jacketed Electrical Cables -- 01/19/2006 --
IN-06-01 Torus Cracking in a BWR Mark I Containment -- 01/12/2006 --

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Page Last Reviewed/Updated Thursday, January 23, 2025