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 Issue dateTitleTopic
ML20198Q6045 November 1997Ro:On 971024,one Kw Interlock Did Not Meet Definition of Operable Intended Function,Contrary to TS 3.2.4.Caused by Lack of Detail & Precision in Some of Maint & Surveillance Procedures.Interlock Setpoints Adjusted
ML20058P49119 October 1993Ro:On 931012,discovered That Design Feature in TS Incorrect W/Respect to Min Free Vol in Reactor Bay.Reactor Secured Until Discussion Held W/Nrc.Ts Change W/Sar Revs Will Be Requested
ML20117A63425 November 1992Ro:On 921005,inadvertent Partial Withdrawal of One Control Rod Occurred When Operator Changed Control Sys Parameters W/ All Rods Fully Inserted.Caused by Inadequate Procedural Controls.Procedural Controls Re Software Tuning Implemented
ML20067B32430 January 1991Ro:On 910122,reactor Operator Stepped Out of Reactor Control Room to Provide Experimeters W/Access to Reactor Bay. Training Procedure Explaining Event Being Circulated to All Licensed Reactor Operators
ML20203N90228 April 1986Ro:On 860418,during Experiment to Check Operation of New Instrumented Fuel Element,Temp Scram Sys Could Not Have Performed Intended Safety Function.Caused by Std Operating Procedure SOP-2 Not Being Followed.Procedure Emphasized
ML20117J4997 May 1985Ro:On 850503,during Annual Fuel insp,12 Weight % Triga Fuel Element in Ring B of Core Found Swollen & Unable to Be Removed from Grid.Integrity of Fuel Element Intact.Element to Be Stored & No Longer Used at Facility