Pages that link to "NRC Form aos"

The following pages link to NRC Form aos:

Displayed 18 items.

• 05000348/LER-1998-003, :on 970315,failure to Comply W/Ts 4.5.3.2 & 3.5.2,was Determined.Caused by Personnel Error.Personnel Involved Have Been Coached Re Procedure Adherence ‎ (← links)
• 05000425/LER-1998-003-03, :on 980508,lightning Strike Leads to Turbine Reactor Trip.Caused by Main Generator Trip.Spare step-up Transformer Was Placed Into Service & Unit Was Returned to Power on 980514 ‎ (← links)
• 05000312/LER-1988-020, :on 881215 & 16,discovered Core Flooding Tank Daily Pressure Below Tech Spec Limit.Caused by Personnel Error.Pressure Restored to within Tech Spec Limits.Procedure LDAP-0012 Will Be Revised ‎ (← links)
• 05000416/LER-1999-004-03, :on 990909,HPCS Sys Was Declared Inoperable Due to Generator Shaft Bearing Failure.Caused by Inadequate Lubrication.Deficiency Document Was Issued & DG Was Tagged Out.With ‎ (← links)
• 05000312/LER-1985-001, :on 850124,operations Personnel Found Hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency.Cover Panels added.Post-accident Sampling Sys Operation Procedure Revised ‎ (← links)
• 05000331/LER-1985-041, :on 851007 & 28,maint Activities on Isolation & Downstream Valves Required Voluntary Realignment of Fire Suppression Sys from Normal to Backup Water Supply.Sys Returned to Normal Status ‎ (← links)
• 05000348/LER-1997-004-01, :on 970318,safety Related 600 Volt Position Sensitive Seismic Qualification Was Not Seismically Qualified in All Positions.Caused by Personnel Error. Operating Procedures Modified ‎ (← links)
• 05000295/LER-1985-027-04, :on 850726,Procedure CRN-85-357 Re Backfill Feedwater Instrument Sensing Lines Incorrectly Approved. Caused by Employee Error.Procedure Subsequently Approved W/Proper Signatures ‎ (← links)
• 05000321/LER-1996-012, :on 961008,ground on 600-volt Bus Causes Loss of RPS Power Supply & Unplanned ESF Sys Actuations.Caused by nonfault-tolerant Design.Cable & Heater Replaced & Use of Breaker Trip Devices Investigated ‎ (← links)
• 05000220/LER-1985-009, :on 850522 & 31,discovered Instrument Channel Tests Not Performed on Three of Four Emergency Condenser Sys Noble Gas Activity & Suppression Chamber Water Level Monitors.Cause Unknown.Tests Performed ‎ (← links)
• 05000369/LER-1985-011-01, :on 850409,samples Taken from Cold Leg Accumulator a Prior to Unit Shutdown Revealed Low Boron Concentration.Caused by Component Failure.Boron Concentration Returned to within Specs ‎ (← links)
• 05000327/LER-1996-008-01, :on 960709,failed to Perform Quarterly Backseat/Closure Test on Five Check Valves.Caused by Personnel Error.Test Procedure Written & Performed on Subject Check Valves ‎ (← links)
• 05000325/LER-1985-002-01, :on 850206,automatic Isolation of Common Control Bldg HVAC Sys Occurred.Caused by Spurious Actuation of Plenum Chlorine Detector 2X-AT-2977.Detector Returned to Svc After Functional Testing ‎ (← links)
• 05000425/LER-1996-001-01, :on 960108,offiste Power Sources Not Verified in TS Prescribed Time Frame.Caused by Cognitive Personnel Error.Unit Shift Supervisor Counseled ‎ (← links)
• 05000334/LER-1984-007, :on 840704,containment Recirculation Cooling Coils Chilled Water Sys Outlet Isolation Valve Failed Shut, Causing Containment Temp to Reach 105.08 F.Caused by Failed Pneumatic Valve Diaphragm ‎ (← links)
• 05000302/LER-1995-012, :on 950707,determined That CR-3 May Have Operated Outside Licensing Basis.Caused by Design Error.Mod Approval Record Initiated to Install Isolation Contacts in Control Circuits ‎ (← links)
• 05000369/LER-1995-001-01, :on 950129,Unit 1 Manual Reactor Trip Was Initiated Due to Equipment Failure.Replaced Type of Fuse in Applications Deemed Critical to Plant Operation ‎ (← links)
• 05000237/LER-1984-001, :on 840102,two of Four Redundant Main Steam Line Low Pressure Switches Tripped Below Tech Spec Limits. Caused by Instrument Setpoint Drift.Switches Recalibr ‎ (← links)