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 Issue dateTitleTopic
ML20205K38531 December 1998Dow Triga Research Reactor Annual Rept for 1998. with
ML20203A10311 February 1998Safety Evaluation Supporting Amend 8 to License R-108
ML20217P63431 December 1997Dow Triga Research Reactor Annual Rept - 1997
ML20210R12219 August 1997Safety Evaluation Supporting Amend 7 to License R-108
ML20137C54031 December 1996Dow Triga Research Reactor Annual Rept - 1996
ML20101F27631 December 1995Dow Triga Research Reactor Annual Rept - 1995
ML20081F14931 December 1994Dow Triga Research Reactor Annual Rept-1994
ML20063G72931 December 1993Dow Triga Research Reactor Annual Rept for 1993
ML20127B46631 December 1992Dow Triga Research Reactor Annual Rept 1992
ML20141M04631 December 1991Dow Triga Research Reactor Annual Rept - 1991
ML20077B47310 May 1991Ro:On 910507,operator Failed to Perform Surveillances & Channel Tests for All 6 Scram Channels & 2 Interlocks Prior to Reactor Operation.Caused by Personnel Error. Tailgate Meeting Held & Mods to Hardware Initiated
ML20081M75626 March 1991Dow Triga Research Reactor Annual Rept - 1991, Covering May - Dec 1990 Period
ML20062F74919 November 1990Microprocessor-Based I&C Sys for Dow Triga Research Reactor
ML20081E09030 June 1990Dow Triga Research Reactor Annual Rept - 1990
ML20006B65819 January 1990Ro:On 900116,wide Range Log Channel Failed While Reactor Taken to Power.Caused by Poor Connection in Rotary Switch in Wide Range Log Channel.Authorization to Replace Entire Control Console Initiated in Early Jan 1990
ML19354D58721 December 1989Ro:On 891220,wide Range Log Channel Failed While Reactor Was Being Taken to Power.Caused by Poor Connection in Rotary Switch in Log Channel.Switch Repaired & Reactor Returned to Operation
ML20246J59830 April 1989Safety Evaluation Report Related to the Renewal of the Facility License for the Research Reactor at the Dow Chemical CompanySafe Shutdown
Shutdown Margin
Emergency Lighting
Earthquake
Fuel cladding
ML20237L45614 August 1987Dow Triga Research Reactor Requalification Program
ML20210S6059 February 1987Revised Licensed Operator Requalification Program for Facility
ML20214C54931 December 1986Dow Triga Research Reactor Requalification Program
ML20214C54131 December 1986Dow Triga Research Reactor Environ Rept
ML20214C53531 December 1986SAR for Dow Triga Research Reactor 300 KwShutdown Margin
Earthquake
ML20212Q69726 August 1986Ro:On 860821,during Prestartup,Source Interlock Operated But Failed to Prevent Movement of Control Rods.Caused by Temporary Loss of Electrical Contact in Logic Circuits. Movement Restored Proper Electrical Contact
ML20214C51231 December 1985Dow Chemical Co,1985 Annual Rept
ML20136H32913 November 1985Ro:On 851112,wide-range Log Channel Malfunctioned During Operation of Reactor.Caused by Faulty Calibr Switch in Log Channel.Switch Adjusted & Reactor Operated at Several Power Levels Up to 95 Kw
ML20114B32214 January 1985Ro:On 850107,while Taking Unit to 95 Kw Power,Period Meter Indicated Period Decreasing W/Log Power Trace Levelling & Linear Power Trace Rising.Caused by wide-range Log Channel Malfunction.Manual Scram Initiated & Reactor Secured
ML20101M84910 December 1984Ro:On 841203,wide-range Log Channel Malfunctioned,Resulting in Manual Scram.Cause Traced to Resistor in Filter on Detector High Voltage Supply.Repairs & Testing in Progress
ML20065R40020 October 1982Ro:On 821006,malfunction of Eberline AMS-3 Continuous Air Monitor Pump Caused Pump to Be Inoperable for Approx 1-h.No Loss of Significant Signals Indicated.Pump Repaired.Changes to Procedures or Equipment Under Review
ML20052E23628 April 1982RO: on 820421,instructions Given to Disconnect Power Supply & Single Lead to Compensated Ion Chamber.Incident in Violation of Tech Specs Requiring Two Linear Safety Channels Operating While Reactor Is Operating
ML20137G45024 March 1981Ro:During walk-through of Operator Training Program, O-ring Seal of Filter Holder Found Not Seated Properly Causing Partial Bypass of Filter for Air Sucked Into instrument.Filter-in Lock Adjusted
ML20137G44623 June 1977Ro:On 770621,radioactive Source Containing 200 Mci Cs-137 Recovered from Brine Well 33.Incident Described in
ML20137H38412 January 1976Ro:On 760106,operator Left Console Key in Switch So That Reactor Not Secured Per Tech Specs.Key Withdrawn from Console.Incident Discussed W/Operators & Large Red Plastic Tag Attached to Key to Make It More Visible
ML20137G81616 February 1973Ro:On 730125,available Excess Reactivity of Core Exceeded Tech Specs Limit.Caused by Change in Worth of Control Rods. Rearrangement of Core Configuration Initiated to Reduce Available Excess Reactivity
ML20137G79322 November 1971Ro:On 711022,during Startup of Reactor,Period Limiting Signal Unavailable for Servo Sys Which Continued to Raise Rod Causing Rapid Rise of Power.While Reactor Manually Scrammed,Reactor Period Less than Min Allowed in Tech Specs