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 Issue dateTitleTopic
ML20234F23626 June 1987Special Rept:Cardox Sys Inoperable for 26 Days Due to Failed Relay in Cable Vault Zone Discovered on 870519.Fire Watch Established.Replacement Relay Installed & Tested on 870611. Cardox Sys Functionally Tested on 870613Fire Watch
ML20214V7978 September 1986Ro:On 860810,plant Tripped Due to Low Steam Generator Level Following Loss of Static Inverter.On 860811,dose Equivalent I-131 Activity Exceeded 1.0 Uci/G.Dose Equivalent Iodine Activity & Plant Operating Characteristics Encl
ML20212C63815 July 1986Ro:On 860612,plant Tripped When Excess Flow Check Valve Inadvertently Closed.Dose Equivalent Iodine (Dei) Activity Also Exceeded 1 Uci/G.Dei Activity & Plant Operating Characteristics Presented in Tables 1 & 2,respectively
ML20198R30520 May 1986Ro:On 860416,dose Equivalent I-131 Activity Exceeded 1.0 Uci/G & Remained Above Level All Day.Letdown Flow Increased Upon Reactor Shut Down in Order to Increase Coolant Cleanup & Reduce I-131 Level
ML20210U87814 May 1986Ro:On 860429,Mensor High Precision Quartz Manometer,Which Provides Containment Pressure Info to Plant Computer,Failed. Mensor Repaired & Returned to Svc.Alternate Calculations Will Continue
ML20155A85924 March 1986Ro:On 860222,dose Equivalent Iodine (I-131) Levels Exceeded 1 Uci/G for 7.5 H After Unit Shutdown on 860221 to Repair Hydrogen Leak in turbine-generator Unit.Peak Activity Spike 1.96 Was Uci/G.Cause Not Stated
ML20126L7813 June 1981Ro:On 810603,at Completion of Fuel Handling Activities & W/ Greater than 23 Ft of Water in Reactor Cavity,Svc Water Cooling to Secondary Component Coolers Interrupted for Approx 30 Minutes.No Significant Increase in Temp
ML20126B43430 January 1980RO 80-001/01T:during Review of Steam Line Break Analysis, Incorrect Assumption Utilized in Zero or Low Power Steam Line Break Analysis Discovered.Cause Unstated.Necessary Mods to Be Implemented Prior to Startup