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Issue date | Title | Topic | |
---|---|---|---|
ML20085M639 | 28 November 1973 | AO BFAO-7343W:on 731118,during Startup Test Program, Significant Vibration Detected in Torus & torus-ring Header When Relief Valves Opened.Torus Support Saddle Feet Will Be Shimmed to Ensure Proper Torus Support | |
ML20085M644 | 26 November 1973 | AO BFAO-7341W:on 731116,during Accelerated Surveillance Testing,Reactor Protection Sys Water Level Switches LIS-3-203A,B & C Malfunctioned.Cause Unstated.Switches Reset & New Locking Assembly Installed | |
ML20085M647 | 18 November 1973 | Telecopy AO BFAO-7341T:on 731116,during Accelerated Surveillance Testing,Reactor Water Level Switches LIS-3-203A,B & C Operated Outside Tech Specs | |
ML20085M651 | 23 November 1973 | AO BFAO-7342W:on 731115 & 16,during Startup Testing,Hpci Suction Valve Aligned to Torus Due to Water Level Functions in Torus.Caused by Release of Reactor Steam from Relief Valves Through Discharge Pipes.Investigation Continuing | |
ML20085M652 | 23 November 1973 | AO BFAO-7340W:on 731115,during Accelerated Surveillance Testing,Hpci Steamflow Excessive Pressure Switches PdIS-73-1A & 1B Malfunctioned.Caused by Contacts in Improper Setting.New Locking Plate Assemblies Installed | |
ML20085M659 | 18 November 1973 | Telecopy AO BFAO-7340T:on 731115,during Accelerated Surveillance Testing,Hpci Steam Flow Excessive Pressure Switches PdIS-73-1A & 1B Malfunctioned | |
ML20085M670 | 23 November 1973 | AO BFAO-7339W:on 731115,during Accelerated Surveillance Testing,Reactor Protection Sys Condenser Low Vacuum Pressure Switch PS-2-1B Malfunctioned.Cause Unstated.Switch Replaced | |
ML20085M687 | 18 November 1973 | Telecopy AO BFAO-7339T:on 731115,during Accelerated Surveillance Testing,Turbine Condenser Low Vacuum Pressure Switch PS-2-1B Malfunctioned | |
ML20085M751 | 23 November 1973 | AO BFAO-7338W:on 731115,at 25% Power W/Msiv Closed,Rcic & HPCI Sys Failed.Caused by Movable Contact of Dc Contactor Being Hung in Arcing Horn.Contactor Repaired | Safe Shutdown Reactor Vessel Water Level |
ML20085M883 | 23 November 1973 | AO BFAO-7337W:on 731114,during Routine Surveillance,Core Spray Pump Discharge Pressure Switches PS-75-7 & 35 Malfunctioned.Caused by Setpoint Drift.Switches Recalibr | |
ML20085M891 | 16 November 1973 | AOs Bf EAO-7349W Through Bf EAO-7352W:on 731108-14,fish Killed When Impinged on Intake Screens.Proposal to Change ETS to End Requirements for Daily Impingement Repts Sent to AEC Directorate of Licensing | |
ML20085M895 | 21 November 1973 | AO BFAO-7336W:on 731114,during Hot Standby Condition,Hpci Inverter Power Supply Fuse Failed.Caused by High Voltage Spike During Surveillance Check of Newly Installed 1/4-amp Switches.Spike Suppressor Installed | |
ML20085M898 | 21 November 1973 | AO BFAO-7335W:on 731113,during Startup Test Program, Aug 1973 Plant Mod Eliminating High Water Level Initiation of MSIV Closure Found Contrary to Tech Specs.Caused by Procedural Error.Tech Spec Amended | |
ML20085M902 | 14 November 1973 | Telecopy AO BFAO-7335T:on 731113,during Hot Standby, Actuation Signal Which Caused MSIVs to Isolate in Startup Mode on High Reactor Water Level Found Deleted from Plant Design But Not from FSAR or Tech Specs | |
ML20085M921 | 16 November 1973 | AO BFAO-7333W:on 731108,during Accelerated Surveillance Testing,Reactor Protection Sys Water Level Switches LIS-3-203B & C Malfunctioned.Caused by Setpoint Drift. Switches Recalibr | |
ML20085M927 | 9 November 1973 | Telecopy AO BFAO-7333T:on 731108,during Routine Surveillance Testing,Water Level Switches LIS-3-203B & C Operated Outside Tech Specs | |
ML20085M931 | 10 November 1973 | Telecopy AO BFAO-7334T:on 731110,condition Discovered Whereby Complete Loss of Plant Electrical Power Would Cause HPCI & RCIC to Be Inoperable Until Manually Reset | |
ML20085M943 | 9 November 1973 | AOs Bf EAO-7344W Through Bf EAO-7348W:on 731101-07,fish Killed When Impinged on Intake Screens.Proposal to Change ETS to End Requirements for Daily Impingement Repts Sent to AEC Directorate of Licensing | |
ML20085N400 | 19 November 1973 | AO BFAO-7334W:on 731110,during Manual Trip Because of Sudden Increase in Vibration,Rcic & HPCI Sys Inoperable Due to Complete Loss of Plant Ac Electrical Power.Caused by Problem W/Control Logic.Evaluation Continuing | Safe Shutdown |