Pages that link to "05000269/LER-2008-001, Gas Void Found in High Pressure Injection System Suction Piping"
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The following pages link to 05000269/LER-2008-001, Gas Void Found in High Pressure Injection System Suction Piping:
Displayed 5 items.
- 05000269/LER-2008-001 (redirect page) (← links)
- 05000361/LER-2008-003 (← links)
- 05000270/LER-2008-002 (← links)
- 05000269/LER-2001-002 (← links)
- 05000269/LER-2001-001 (← links)
- IR 05000269/2009004 (← links)
- 05000269/FIN-2009004-03 (← links)
- 05000269/LER-1982-007, Forwards LER 82-007/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-005, Forwards LER 82-005/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-014, Forwards LER 82-014/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-015, Forwards LER 82-015/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-001, Forwards LER 81-001/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-017, Forwards LER 82-017/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-011, Forwards LER 82-011/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-013, Forwards LER 82-013/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-003, Forwards LER 83-003/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-005, Forwards LER 83-005/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-010, Forwards LER 83-010/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-006, Forwards LER 83-006/01T-0 (← links)
- 05000269/LER-1983-004, Forwards LER 83-004/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-016, Forwards LER 82-016/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-002, Forwards LER 83-002/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-008, Forwards LER 83-008/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1984-007, Advises of Reliability of Auxiliary Oil Pumps Per LER 84-007-00.No Insp of Unit 2 Pump During Outage Warranted. Util Deleting Commitment (← links)
- 05000269/LER-1983-007, Forwards LER 83-007/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-012, Forwards LER 82-012/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-025, Forwards LER 81-025/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1996-008, Forwards Suppl to LER 96-008 Concerning Missed Valve Surveillance Which Resulted in Borated Water Storage Tank Technical Inoperability (← links)
- 05000269/LER-1998-013, Forwards LER 98-013-00 Re Condition Prohibited by Ts,Per 10CFR50.73(a)(1)(d).Circumstances & Causes for Event Have Not Been Fully Determined & Will Be Provided in Supplemental LER on or Before 981202 (← links)
- 05000269/LER-1982-008, Forwards Updated LER 82-008/01X-1.Detailed Event Analysis Encl (← links)
- 05000269/LER-1987-002, Informs That LER 87-002 Re App R Review Concerning Valve Operability Will Be Submitted by 870316.LER Due on 870302 (← links)
- 05000269/LER-1986-012, Notifies That LER 86-012 Re Inoperability of Standby Shutdown Facility Due to Be Submitted by 861114 Will Be Provided by 870120 (← links)
- 05000269/LER-1986-011, Advises That LER 86-011 Re Loss of Condenser Cooling Water Gravity Flow Will Be Submitted by 861201 (← links)
- 05000269/LER-1987-008, Advises That LER-87-008 Re Breach of Containment Integrity Resulting in Tech Spec Violation Due by 871111 Will Be Submitted by 871125.Rept in Preparation (← links)
- 05000269/LER-2022-001, Ultrasonic Examination Indications Identifies Degraded Reactor Coolant System Pressure Boundary (← links)
- 05000269/LER-2022-001-01, Ultrasonic Examination Indication Identifies Degraded Reactor Coolant System Pressure Boundary (← links)
- 05000269/LER-1987-009-04, :on 871028,standby Bus 1 Removed from Svc for Maint Insp.Caused by Mgt Deficiency.Standby Bus Returned to Svc & Special 5-day Rept,Per Tech Spec,Sent to NRC (← links)
- 05000269/LER-1987-010-04, :on 871105,manual Reactor Trip Occurred Due to Component Failure During Startup Physics Testing.Caused by Loose Solder Joint at Pin 1 of Control Rod Sequencer Card. Joint Repaired (← links)
- 05000269/LER-1987-008-05, :on 871012,direct Pathway from Containment to Environ Identified During Fuel Movement Resulting in Violation of Tech Specs.Caused by Mgt Deficiency in Planning Process.Fuel Movement Stopped (← links)
- 05000269/LER-1998-009, :on 980617,LTOP Sys Was Technically Inoperable. Caused by Inadequate Design Configuration.Established Compensatory Guidelines (← links)
- 05000269/LER-1987-006-05, :on 870521,during QA Review Determined That Required Valve Body Pressure Test Not Performed on Valves 3HP-43 & 3LPSW-18.Caused by Personnel Error.Required Pressure Test Performed & Individual Counseled (← links)
- 05000269/LER-1998-002-01, Forwards LER 98-002-01 Re non-isolable Weld Leak on Pressurizer Surge Line Drain Pipe Which Resulted in Unit Shutdown (← links)
- 05000269/LER-1999-006-01, :on 990818,Unit 1 Tripped.Caused by Equipment Malfunction of Rod Group 5 Programmer.Programmer Replaced. with (← links)
- 05000269/LER-1986-011-04, :on 861001,suction to Low Pressure Svc Water Lost When Performing Load Shed Test on Unit 2.Caused by Inadequate Design & Testing of Emergency Condenser Cooling Water Sys.Load Shed Test Date Evaluated (← links)
- 05000269/LER-1986-010-04, :on 860828,potential for Lack of Pump Runout Protection During Certain Design Basis Transients Found. Caused by Failure to Analyze Emergency Feedwater Sys for All Design Basis Transients (← links)
- 05000269/LER-1986-013-04, :on 861023,personnel Determined Procedures Used for Operation & Maint of Hydrostation Not Reviewed &/Or Approved Properly.Caused by Mgt/Qa Deficiency.Procedures Program Revised (← links)
- 05000269/LER-1997-007-02, Has Been Cancelled (← links)
- 05000269/LER-1986-012-04, :on 861015,water Supply Available to Standby Shutdown Facility (Ssf) Insufficient to Enable Ssf to Accomplish Function.Caused by Failure to Define Design Bases of Ssf.Listed Plant Mods Completed (← links)
- 05000269/LER-1986-015-04, :on 861120,Keowee Hydro Relay 94 T/K Actuated During Mod Work,Causing Lockout of Transformer,Trip of Circuit Breakers & Loss of Overhead Emergency Power.Caused by Mechanical Vibration Due to Drilling (← links)
- 05000269/LER-1986-009-02, :on 860610,discovered That Keowee Battery Racks Did Not Comply W/Seismic Design Requirements.Caused by Poor Communication & Design/Installation Deficiency.Styrofoam Cell Spacers Installed (← links)
- 05000269/LER-1986-014-04, :on 861117,failure to Leak Test 100 Uci Cs-137 Source ONS-64 Since 761027 Discovered.Caused by Incorrect Transfer of Info Between Log Books.Leak Test Performed (← links)
- 05000269/LER-1998-018, :on 981209,identified Potential for Loss of Essential Siphon Vacuum Sys.Caused by Design Oversight. Procedure Revised.With (← links)
- 05000269/LER-1999-002-01, :on 990317,identified Problem Associated with Ability to Establish Flow Pressure LPI Discharge Headers within 15 Minutes.Caused by Inadequate Validation Process. Engineering Analysis Performed.With (← links)
- 05000269/LER-1987-002-04, :During Wk of 870127,determined That Operators May Not Be Able to Isolate Particular Letdown Flow Path. Caused by Design Deficiency.Power Removed from Breakers for Valves LP-1 & HP-2 on 870129 (← links)
- 05000269/LER-1986-007-02, :on 860502,discovered That Two Channels of Reactor Protective Sys (RPS) Inoperable at Same Time During Adjustment of hi-flux Trip Setpoint.Caused by Failure to Properly Tag Inoperable Module in RPS Cabinet (← links)
- 05000269/LER-1997-011-01, :on 971228,initiated Shutdown Due to Calculated 404 Gallons Per Day SG Leak.Caused by Inadequate Process Control.Repaired Leaks (← links)
- 05000269/LER-1997-003-01, Forwards LER 97-003-01 Re post-LOCA Boron Dilution Design Basis Not Being Met.Rept Includes Updated Info & Revised Corrective Action (← links)
- 05000269/LER-1986-006-03, :on 860410,hot Full Power Moderator Temp Coefficient Exceeded Assumed Limit.Caused by Disparity Between Measured Data & Calculated Value.Fsar Will Be Updated (← links)
- 05000269/LER-1998-017-01, :on 981128,missed Surveillance Was Noted.Caused by Inadequate Work Planning.Operations Mgt Expectations for Performance of Qpt SR Were Communicated to Appropriate Operations Personnel (← links)
- 05000269/LER-1998-012-01, Forwards LER 98-012-01,re RB Spray Pumps Being Declared Inoperable Due to Npsh.Rept Has Been Revised to Indicate Results of Testing & Corrective Actions Taken to Date (← links)
- 05000269/LER-1986-005-02, :on 860314,vent Gaseous Radiation Monitor 1RIA-45 Removed from Svc During Refueling Operations.Caused by Personnel Error.Fuel Movement Stopped Immediately.Monitor Placed Back in Svc (← links)
- 05000269/LER-1985-014-03, :on 851119,determined That Six 208VAC motor-operated Valves Not Assured of Performing Intended Safety Functions.Caused by Design Deficiency in 1979 Auxiliary Power Sys Load Study (← links)
- 05000269/LER-1988-002-01, :on 880209,discovered That Valves DA-3,DA-8, DA-13 & DA-18 (Diesel Air Start Sys) Not Included in Inservice Valve Testing Program.Caused by Personnel Error. Operability Test Performed (← links)
- 05000269/LER-1987-012, :on 871203,discovered Exam Frequency of Reactor Coolant Pump Flywheels Exceeded Requirement of Tech Spec 4.2.3.Caused by QA Deficiency.Inservice Insp Plan Revised (← links)
- 05000269/LER-1987-013-04, :on 871119,containment Isolation Valve IN-106 Opened in Violation of Tech Spec 3.6.1.Caused by Personnel Error.Valve Closed,Procedures Reviewed & Senior Reactor & Nuclear Equipment Operator Counseled (← links)
- 05000269/LER-1997-004-01, :on 970417,determined More than One HPI Pump Could Be Started During LTOP Event.Util Evaluation of Event Continuing & Rept Will Be Supplemented to Address Root Cause & Other LER Content Requirements (← links)
- 05000269/LER-1987-011-04, :on 871202,cable Room Sprinkler Sys Could Not Provide Design Flow.Caused by Design Deficiency.Fire Watches Established Until Sys Operable,Restoring Sys to Operable Condition by Increasing Supply Line Diameter (← links)
- 05000269/LER-1986-003-02, :on 860208,discovered That Effluent Grab Sample from Chemical Treatment Pond 3 Missed.Caused by Personnel Oversight & Misentry Into Log Book.Personnel Counseled. Procedures Will Be Clarified (← links)
- 05000269/LER-1986-002-04, :on 860203,discovered That Emergency Feedwater Sys & Low Pressure Svc Water Sys Piping & Valves Not in Full Compliance W/Fsar Seismic Criteria Requirements.Caused by Design Deficiency (← links)
- 05000269/LER-1986-001-05, :on 860131,reactor Tripped from 100% Power Due to Failure of Power Circuit Breaker in 230 Kv Switchyard. Caused by Failure of Breaker Contacts.Breaker Repaired (← links)
- 05000269/LER-1986-004-02, :on 860312,Nuclear Instrumentation Channel NI-1 Discovered Not Operating While Eight Fuel Assemblies Inserted Into Core.Caused by Failure to Maintain Full Requirements of Refueling Procedure (← links)
- 05000269/LER-1984-007-04, :on 841203,reactor Tripped from 57% Full Power. Caused by Low Oil Pressure from shaft-driven Oil Pump W/Main Feedwater Pump 1B Turbine Auxiliary Oil Pump (Mfwptaop) Switched Off & 1A Mfwptaop Out of Svc (← links)
- 05000269/LER-1985-011-03, :on 850723,interim Radwaste Ventilation Exhaust Effluent Flow Rate Monitor Declared Inoperable.Caused by Lack of Instrumentation Transmitter Calibr.Interim Radwaste Bldg Ventilation Monitor Repaired (← links)
- 05000269/LER-1985-013-03, :on 851019,gaseous Waste Disposal Tank 1C Pressurized & Isolated W/O Taking Hydrogen Concentration Sample Per Tech Spec 4.1.3.Caused by Personnel Error.Tank Sampled & Analyzed After Discovery (← links)
- 05000269/LER-1985-009-03, :on 850711,in-plant Review of Certain Station Activities Determined That Several Radioactive Effluent Monitors Inoperable for More than 30 Days & Not Reported. Caused by Mgt/Qa Deficiency (← links)
- 05000269/LER-1985-012-03, :on 850819,determined That Several Reactor Bldg Tendon Insps Not Performed & Insp Repts Not Sent to NRC on Time.Caused by Misinterpretation of Tech Specs. Administrative Directives Revised (← links)
- 05000269/LER-1985-006-03, :on 850411,plant Tripped During Divergent Secondary Pressure Swing.Caused by Turbine Header Pressure Control Instabilities.Recirculation Valves Isolated Until Mods Can Be Made (← links)
- 05000269/LER-1985-005-03, :on 850411,reactor Trip Occurred Upon Closure of Low Pressure Turbine Intercept Valves & Main Turbine Control Valves.Caused by Faulty Edge Connector on Circuit Board of Electrohydraulic Control Sys (← links)
- 05000269/LER-1985-008-02, :on 850520,surveillance Interval for Plant Fire Protection Sys Exceeded Tech Spec Limits.Caused by Personnel Error Involving Entry of Wrong Work Request Number Into Computer.Surveillance Test Completed (← links)
- 05000269/LER-1985-007-02, :on 850425,reactor Tripped from 94% Full Power When Both Main Feedwater Pumps Tripped on High Discharge Pressure.Caused by Static Inverter & Related Static Transfer Switch.Components Replaced (← links)
- 05000269/LER-1985-005-01, :on 850411,reactor Tripped from 100% Full Power Upon Closure of Low Pressure Turbine Intercept Valves & Main Turbine Control Valves.Caused by High Turbine Header Pressure & Reduced Heat Transfer (← links)
- 05000269/LER-1996-005-03, :on 960730,discovered TS Surveillance Interval Exceeded on Mechanical Snubber.Caused by Deficient Work Practices.Snubber Was Removed,Functionally Tested W/Acceptable Results & Reinstalled (← links)
- 05000269/LER-1985-004-03, :on 850328,gaseous Waste Disposal Tank Released W/O Redundant Sample Analysis.Caused by Personnel Error. Personnel Counseled & Sample Taken (← links)
- 05000269/LER-1996-009, :on 960806,engineering Evaluation Discovered Error Existed in Calibr Procedure for Letdown Storage Tank Level Instrumentation for Units.Root Cause & Corrective Action Will Be Addressed in Supplemental Rept (← links)
- 05000269/LER-1984-006-04, :on 841202,reactor Tripped Due to Wire EHC6 Loosening & Opening Relay 41mxa.Caused by Opening of Generator Field Breaker Due to Opening of Relay 41mxa.Unit Stabilized in Hot Shutdown & Returned to Svc (← links)
- 05000269/LER-1984-004-04, :on 841006,RCS Cooldown Rate Exceeded as Temp Decreased 57 F in 1/2 H.Caused by Personnel Error.Personnel Counseled Re Correct Interpretation of Appropriate Tech Spec (← links)
- 05000269/LER-1996-006, :on 960402,inadequate Change Mgt Resulted in Technical Inoperability of Filtered Ventilation Sys.Obtained TS Change on 960402 to Allow Use of Newer Std (← links)
- 05000269/LER-1985-001-01, :on 850111,one of Two Trains of Engineered Safeguards Sys Rendered Inoperable Due to Loss of Power Supply in Engineered Safeguards Protection Sys Cabinet. Caused by Failed Electrolyte Capacitor (← links)
- 05000269/LER-1996-003, :on 960214,RC Makeup Sys Technically Inoperable for App R Scenario Due to Design Analysis,Sys Functional Design Deficiency.Compensatory Actions Taken to Limit Leakage & DBD Will Be Revised (← links)
- 05000269/LER-1985-002-02, :on 850122,unit Tripped from 100% Full Power When All Six Intercept Valves Closed for Unknown Reasons Causing High Turbine Header Pressure Which Resulted in High RCS Pressure (← links)
- 05000269/LER-1984-005-04, :on 841112,surveillance Interval for Fire Protection Equipment Exceeded Tech Specs.Caused by Procedural Deficiency within Preventive Maint Sys & Personnel Errors (← links)
- 05000269/LER-1995-008, :on 951129,determined That Containment Isolation Valve Inoperable Due to Deficient Design Change. Valve 3RC-5 Disabled in Safety Position (Closed) Until Gear Ratio in Valve Corrected (← links)
- 05000269/LER-1985-003-01, :on 850222,emergency Safeguard Features Actuation Sys Setpoint for Initiation of HPI Set Too Low. Caused by sensor-instrumentation Error.Hpi Actuation on Low RCS Pressure Setpoint Reset (← links)
- 05000269/LER-1985-003-02, :on 850222,emergency Safeguard Features Actuation Sys Setpoint Adjusted to 1,600 Psig.Caused by B&W Reanalysis of Small Break LOCA Transients,Per NUREG-0737. Setpoint Changes Initiated (← links)
- 05000269/LER-1984-003-04, :on 840830,post-irradiation Exam Gamma Ray Scanner Rotated So One End Momentarily Suspended Over Spent Fuel Assembly in Spent Fuel Pool.Caused by Insufficient Number of Spent Fuel Assemblies (← links)
- 05000269/LER-1995-007, :on 951106,LPIS Was Technically Inoperable Due to Deficient Design Change.Valves Modified to Prevent Key from Vibrating Out of Keyway (← links)
- 05000269/LER-1984-002-03, :on 840512,reactor Trip Initiated by Reactor Protection Sys When High RCS Pressure Setpoint Reached. Caused by Key Selector Switch & Reactor Coolant Outlet Temp Relay Failure.Relay Replaced (← links)
- 05000269/LER-1991-009, :on 910703,one of Two Diverse Actuation Sys for Loss of Main Feedwater Mitigation Sys Discovered Inoperable.Caused by Design Deficiency.Investigation Team Formed (← links)
- 05000269/LER-1984-001-04, :on 840301,boron Concentrations of Two Independent Core Flood Tank 1A Samples Less than Tech Spec Requirements.Caused by Lack of Adequate Mgt Control Over Known Problem.Procedures Revised (← links)
- 05000269/LER-1995-003, :on 950131,operability Evaluation Revealed That Three Units Operating Outside Design Basis Due to Step in Abnormal Procedure (AP) (Loss of LPI) to Split LPI Flow.Ap (Loss of LPI) Revised (← links)
- 05000269/LER-1983-021-03, /03L-0:on 831225,borate Water Storage Tank Level Channel 1 Failed Low When Moisture in Instrument Airlines Froze,Giving Incorrect Level Indications.Caused by Strip Heaters Deenergizing Due to Tripped Breaker (← links)
- 05000269/LER-1983-017-01, /01T-0:on 831209,during Surveillance Testing, Control Rod Drive Ac Breaker 10 Experienced Delayed Trip. Caused by Component Failure.Trip Breakers Replaced W/Spares. Automatic Trip Will Be Installed (← links)
- 05000269/LER-1983-001-01, /01T-0:on 830111,evaluation Determined That Single Failure in Keowee Hydro Woodward Governor Sys Could Prevent Automatic Actuation of Emergency Power.Caused by Design Deficiency in Switching Logic.Operators Informed (← links)
- 05000269/LER-1983-002-01, /01T-0:on 830112,overhead Emergency Power Path from Keowee Hydro Units to Transformer CT-1 Made Inoperable W/O Testing Alternate (Underground) Path within 1 H.Caused by Personnel Error.Personnel Counseled (← links)
- 05000269/LER-1994-004, :on 950215,determined That LPSW Sys Inoperable in Past Due Design Deficiency.Hpsw Design Basis Document Will Be Reviewed & Updated as Required (← links)
- 05000269/LER-1983-019-01, /01T-0:on 831026,potential Deficiency of Capstan Springs in Pacific Scientific Mechanical Snubbers Identified During Review.Caused by Mfg Deficiency Due to Improper Aging of Springs.Snubbers Returned to Manufacturer (← links)
- 05000269/LER-1983-016-03, Hydrogen Purge Unit Declared Inoperable Due to Discharge Flow Instrument FT-100 Damage.Caused by Personnel Error.Flow Instrument Repaired & Connections Will Be Relocated (← links)
- 05000269/LER-1983-018-01, /01T-0:on 831024,discovered That Potentially Defective Relays Could Cause Keowee Hydro Unit to Trip Off Line During Emergency Operations.Caused by Mfg Deficiency. New Capacitors to Be Installed (← links)
- 05000269/LER-1983-015-03, /03L-0:on 830819,during Reactor Bldg Personnel Hatch O-ring Seal Leak Rate Test,Gasket Blew Out,Causing Hatch to Be Technically Inoperable.Caused by Component Failure.Gasket Replaced (← links)
- 05000269/LER-1983-013-01, /01T-0:on 830623,during Video Insp of Fuel Assemblies,Three or Four Broken hold-down Springs Found. Caused by Component Failure Due to Fatigue Induced Cracking at Existing Flaw.Springs Will Be Replaced (← links)
- 05000269/LER-1983-020-01, /01T-0:on 831209,control Rod Drive (CRD) Ac Breaker 10 Experienced Delayed Trip.Caused by Component Failure.Breakers Replaced.All CRD Breaker Trip Shaft Bearing Assemblies Will Be Replaced (← links)
- 05000269/LER-1994-005-03, :on 941005,containment Isolation Valve 1RC-7 Rendered Technically Inoperable Due to Change Mgt.Valves 1RC-5 & 6 Closed & Electrically Deactivated & Mechanical Maint Team Involved Counseled (← links)
- 05000269/LER-1983-008-01, /01T-0:on 830303,valve & One Independent HPI Train Declared Inoperable When Valve 1HP-25 Failed to Fully Open Electrically.Caused by Component Failure.Valve Operators for HP-24 & 25 Valves Will Be Replaced (← links)
- 05000269/LER-1983-007-01, /01T-0:on 830303,manual Containment Isolation Valve CF-19 Discovered Open on All Three Units.Caused by Personnel Error Due to Inadequate Review for Procedure Approval.Valve Closed & Procedures Revised (← links)
- 05000269/LER-1994-003-03, :on 940623,discovered That Failure of an Air Pressure Regulator Resulted in Kh Main Transformer Lockout Relay Actuation.Caused by Design Deficiency.Repaired Affected Air System Components (← links)
- 05000269/LER-1982-012-01, /01T-0:on 820623,both Trains of Reactor Bldg Spray Inoperable Due to Train B Pump Out of Svc While Train a Pump Suction Valve Was Shut.Caused by Personnel Error.Train B Pump Racked in Pump Breaker (← links)
- 05000269/LER-1981-025-03, /03L-0:on 811229 Discharge Valve 1LPSW-24 Could Not Be Reopened After Being Cycled & Shut to Stop Leakage, Rendering Reactor Bldg Cooling Unit C Inoperable.Caused by Operator Torque Limit Switches Vibrating Loose (← links)
- 05000269/LER-1983-003-03, /03L-0:on 830120,engineering Safeguards Channels A,B & C Reactor Bldg narrow-range Pressure Transmitter Drifted Out of Calibr.Caused by Deficient Procedures. Channels Recalibr & Procedures Changed (← links)
- 05000269/LER-1983-005-03, /03L-0:on 830316,engineering Evaluation Revealed That Double Isolation Criteria Not Met for Standby Shutdown Facility Makeup Water Pump tie-ins to Fuel Transfer Tubes. Caused by Design Deficiency.Procedures Will Be Revised (← links)
- 05000269/LER-1983-010-01, /01T-0:on 830317,during Emergency Lock Leak Rate Test,Emergency Inner Hatch Door Left Open Approx 6-10 Inches.Condition Not Discovered Until 830321.Caused by Personnel Error.All Emergency Hatches Verified Closed (← links)
- 05000269/LER-1983-006-01, /01T-0:on 830224,operability of Emergency Power Path Not Checked within 8 H of Initial Operability Check. Caused by Personnel Error.Operability Verified & Control Room Operators Counseled (← links)
- 05000269/LER-1983-004-03, /03L-0:on 830202,70 Ampere Circuit Breaker Failed to Trip Causing 350 Ampere Circuit Breaker to Trip Resulting in Loss of Power to SY-1 Battery Charger.Caused by Procedure & Component Failure.Breaker Replaced (← links)
- 05000269/LER-1983-001-03, /03L-0:on 830203,alarm Received Indicating High Lower Motor Bearing Temp on HPI 2A Pump.Caused by Loss of Oil Due to Leakage.Pump Motor Replaced (← links)
- 05000269/LER-1982-016-01, /01T-0:on 821018,internal QA Audit Revealed That Engineering Safeguards Surveillance Tests Not Performed During Jan 1982.Caused by Administrative Deficiencies & Personnel Error.New Sys Established & Personnel Counseled (← links)
- 05000269/LER-1982-014-03, /03L-0:between 820816-0920,reactor Bldg Cooling Unit Fan 1A Tripped on Low Speed Thermal Overloads Seven Times.Cause Unknown.Fan Under Surveillance.Fan Motor May Be Replaced If Cause of Trips Cannot Be Determined (← links)
- 05000269/LER-1982-015-03, /03L-0:on 820917,reactor Protection Sys Trip Pushbutton Declared Technically Inoperable.Caused by Procedure Deficiency Which Did Not Include Required Test. Necessary Procedures Changed (← links)
- 05000269/LER-1993-010, :on 931103,manual Reactor Trip at 13% Full Power Was Initiated at 0100 Hours After Plant Transient. Caused by Equipment Failure.Corrective Actions:Repairing Wires & Cleaning Test Solenoid Valves (← links)
- 05000269/LER-1994-001-04, :on 940221,determined Seismic/Loop Event May Result in Loss of post-accident Cooling Due to Design Deficiency.All Engineering Documents & Training Revised.W/ (← links)
- 05000269/LER-1981-001-03, /03L-0:on 810105,turbine Trip from 90% Full Power Occurred.Caused by Loss of Excitation on Generator Field Resulting from Mismatch During Personnel Attempt to Raise Volt Amperes Reactive on Units 1 & 2 (← links)
- 05000269/LER-1982-017-01, /01T-0:on 820820,station I&C Batteries 1CA,1CB & 3CA Declared Inoperable Due to Failure to Take Corrective Actions on Deficiencies Identified During Monthly Surveillance.Caused by Personnel Error (← links)
- 05000269/LER-1982-011-03, /03L-0:on 820622,while Testing to Verify Unit Operability,Unit Would Not Close Into Sys Grid Via Keowee to 230-kV Switchyard Tie Breaker (ACB-1).Caused by Leaking Float Valve in Turbine Governor Control Sys (← links)
- 05000269/LER-1993-009-01, :on 930927,determined That Epsl Channel 1 Not Operable Per TS in Past as Result of Design & Installation Deficiencies in Load Shed Circuitry.Wiring Associated w/3TD 10 Amp Dc Fuse Block Reconfigured (← links)
- 05000269/LER-1982-013-01, /01T-0:on 820706,emergency Feedwater Initiation Logic Pressure Switches Determined Not Surveillance Tested from 820523-0708,rendering Pumps Inoperable.Caused by Inadequate Review of Tech Spec Change.Tests Performed (← links)
- 05000269/LER-1982-007-01, /01T-0:on 820616,during Periodic Environ Surveillance,Keowee Hydro Station Water Fire Suppression Sys Declared Inoperable Due to Inability to Obtain Flow from Fire Hydrant.Caused by Clogged Inlet Strainer (← links)
- 05000269/LER-1982-005-03, /03L-0:on 820302,reactor Bldg Spray Pump Declared Inoperable Due to Inability to Achieve Required Flow Rate. Caused by Running for 3-h W/No Suction Flow.Pump Replaced, Tested & Returned to Svc (← links)
- 05000269/LER-1982-010-03, /03L-0:on 820407,reactor Bldg Isolation Valve 1LWD-1 Failed to Close After Pumping Reactor Bldg Normal Sump.Apparently Caused by Dirty Contact in Valve Operating Motor Starting Compartment.Contact Cleaned (← links)
- 05000269/LER-1982-010, Forwards LER 82-010/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-009-01, /01T-0:on 820329,five Differential Pressure Regulators for Oxygen Supply on Channel B Hydrogen Analyzer Found Defective.Caused by Mfg Deficiency (← links)
- 05000269/LER-1982-009, Forwards LER 82-009/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-006-01, /01T-0:on 820306,steam Generator Tube Leak of Approx 0.08 Gpm Indicated by Condensate Steam Air Ejector Offgas Radiation Monitor.Caused by Crack in Tube 78-2.Unit Shut Down,Leaking Tube Stabilized & Plugged (← links)
- 05000269/LER-1982-006, Forwards LER 82-006/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-002-01, /01T-0:on 820222,control Operator Moved Group 8 Control Rods Into Tech Spec Restricted Area to Clear Core Axial Imbalance Alarm.Caused by Operator Error.Rod Position Corrected & Computer Alarms Modified to Include Group 8 (← links)
- 05000269/LER-1982-002, Forwards LER 82-002/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1993-007-02, :on 930701,determined That Unit 1 Ssf Rc Makeup Sys Inoperable in Past Due to Design Deficiency.Operations Procedures Revised to Reflect Newly Calculated Operating Limits for Rc Makeup Pump,Rcps & RCS (← links)
- 05000269/LER-1982-003-01, /01T-0:on 820209,steam Generator Tube Leak of Approx 0.11 Gpm Was Indicated by Condensate Steam Air Ejector Offgas Radiation Monitor.Caused by Crack on Tube 74-2.Tube Stabilized & Plugged (← links)
- 05000269/LER-1982-003, Forwards LER 82-003/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-001-03, /03L-0:on 820203,motor Driven Emergency Feedwater Pump 1B Declared Inoperable Due to Bearing Vibration Exceeding Acceptable Limits.Caused by Misalignment Between Pump & Motor.Pump & Motor Realigned & Tested Satisfactorily (← links)
- 05000269/LER-1982-001, Forwards LER 82-001/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-004-01, /01T-0:on 820217,exam of Radiograph on Weld 85 on Isometric Drawing 11 Indicated Circumferential Void.Caused by Improper fit-up Weld & Insp During Initial Const.Section of Weld Replaced & Socket Welded to Coupling (← links)
- 05000269/LER-1982-004, Forwards LER 82-004/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-024-01, /01T-0:on 811229,high Humidity Environ in West Penetration Room Rendered Both Penetration Room Ventilation Sys Trains Inoperable.Caused by Leak on Valve 1FDW-265.Leak Repaired (← links)
- 05000269/LER-1981-024, Forwards LER 81-024/01T-0.Detailed Event Analysis (← links)
- 05000269/LER-1981-023-01, /01T-0:on 811209,four Gray safety-related Cables Which Did Not Meet Channel Separation Criteria,Discovered on 811125,determined Reportable.Caused by Improper Original Field Installation.Installation Corrected (← links)
- 05000269/LER-1981-023, Forwards LER 81-023/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-022-01, /01T-0:on 811113,six Variable Spring Hangers on Emergency Feedwater Discharge Found Not Carrying Specified Design Loads.Caused by High Temp Conditions During Loading. Hangers to Be Replaced & Insulated from High Temp Environ (← links)
- 05000269/LER-1981-022, Forwards LER 81-022/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-019, Updated LER 81-019/01T-0:on 811019 & 20,four Separate Liquid Waste Releases Made W/Inoperable Effluent Monitors & Inadequate Water Samples.Caused by Failure to Identify Sample Point Change Due to Temporary Sys Mod (← links)
- 05000269/LER-1977-029, Forwards LER 77-029/03L-0 (← links)
- 05000269/LER-1978-010, Forwards LER 78-010/01T-0 (← links)
- 05000269/LER-1993-003-01, :on 930218,determined That Ssf Rcmu Pump Was Inoperable Due to Design Deficiency.Pressure Vented from Rcmu Pump Suction Stabilizers,Procedures Revised & Design Basis Document Completed (← links)
- 05000269/LER-1981-020-03, /03L-0:on 811029,hydrogen Purge Unit Declared Inoperable Due to Substandard Heat Output from Dehumidifier Heaters.Caused by Frayed Conductor Cable Due to Suspected Thermal Embrittlement & Mechanical Vibration (← links)
- 05000269/LER-1981-020, Forwards LER 81-020/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-021-01, /01T-0:on 811108,inadvertent Release of Unsampled Water from a Laundry & Hot Shower Tank (Lhst) Occurred. Caused by Faulty Operating Procedure That Does Not Require Isolation of Lhst Not in Use.Procedure to Be Revised (← links)
- 05000269/LER-1981-021, Forwards LER 81-021/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-019-01, /01T-0:on 811019 & 20,four Liquid Waste Releases Made W/Inoperable Effluent Monitors & Inadequate Redundant Samples of Water Releases.Caused by Failure to Identify Change in Sample Point.Sampling Procedure Revised (← links)
- 05000269/LER-1981-017-03, /03L-0:on 810903,Keowee Unit 2 Tripped on Startup. Caused by Setpoint Drift in Undervoltage Relay 746GV-2. Relay Replaced (← links)
- 05000269/LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-006-03, /03L-0:on 810328,RCS Subcooling Margin Monitors Were Discovered Inoperable When Computer Alarm Printer & Rider in Control Room Indicated All Analog Points in Alarm Condition.Caused by Failed Low Level Amplifier (← links)
- 05000269/LER-1981-006, Forwards LER 81-006/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-020-03, /03L-0:on 821214,both Unit 1 Turbine Driven & 1A Motor Driven Emergency Feedwater Pumps Incapable of Automatic Actuation for 60 S.Caused by Defective Procedures. Personnel Counseled & Procedures Rewritten (← links)
- 05000269/LER-1982-020, Forwards LER 82-020/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-019-03, /03L-0:on 821207,valve 1HP-25 Failed to Open Remotely During Operational Valve Function Test.Caused by Component Failure.Valve Manually Cracked Open,Cycled & Stroke Tested (← links)
- 05000269/LER-1982-019, Forwards LER 82-019/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1982-018-01, /01T-0:on 821014,three of Six Installed Safety Valves Determined to Have Degraded Performance Based on Valve Ring Settings.Cause of Difference in Ring Settings Unknown.Valves Reset Using EPRI Tested Settings (← links)
- 05000269/LER-1982-018, Forwards LER 82-018/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1983-011-03, /03L-0:on 830525,lockout Indication Received for Startup Transformer CT3.Cause unknown.CT3 Energized (← links)
- 05000269/LER-1983-012, Updated LER 83-012/01T-1:on 830421,emergency Discharge Valve to Keowee Tailrace CCW-8 Opened W/O Command,Rendering Condenser Circulating Water Emergency Discharge Sys Inoperable.Caused by Component Failure (← links)
- 05000269/LER-1983-012-01, /01T-0:on 830408,emergency Discharge Valve to Keowee Tailrace CCW-8 Opened W/O Command,Rendering Condenser Circulating Water Emergency Discharge Sys Inoperable.Caused by Shorted Conductor.Conductor Replaced (← links)
- 05000269/LER-1981-018-03, /03L-1:on 810911,safety-related Battery Surveillance Procedures Found Out of Compliance W/Revised Tech Spec 4.6.9.Caused by Personnel Failure to Identify Necessary Procedure Changes.Procedures Revised (← links)
- 05000269/LER-1981-018, Forwards LER 81-018/03L-1.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-016-01, /01T-0:on 810903,magnetic Particle Testing on 1A2 Reactor Coolant Pressure Seal Housing Bolts Revealed Linear Indications.Bolts W/Rejectable Indications Will Be Replaced (← links)
- 05000269/LER-1981-016, Forwards LER 81-016/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-014-01, /01L-0:on 810717,A & B High Pressure Svc Water Pumps Discovered W/O Control Power Indication & Elevated Water Storage Tank Showed Zero Level.Caused by Control Breaker Source a & B Breakers Being Open & Blown Fuse (← links)
- 05000269/LER-1981-014, Forwards LER 81-014/01L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-015-01, /01T-0:on 810811,modules in Reactor Protection Sys Were Found to Have Errors Larger than Originally Calculated Values.Errors re-evaluated & Setpoints Changed to New Settings (← links)
- 05000269/LER-1981-015, Forwards LER 81-015/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-012-03, /03L-0:on 810624,discovered safety-related Hydraulic Snubber on Atmospheric Dump Line B Was Broken at Rod Eye.Caused by Vibration.Snubber Repaired (← links)
- 05000269/LER-1981-012, Forwards LER 81-012/03L-0 (← links)
- 05000269/LER-1981-009-03, /03L-0:on 810622,during Normal Operations,Startup Transformer CT-1 Locked Out.Cause Not stated.CT-1 Transformer & Bus Work Checked & Protective Relaying Checked for Malfunction Prior to Return to Svc (← links)
- 05000269/LER-1981-009, Forwards LER 81-009/03L-0.Detailed Analysis Encl (← links)
- 05000269/LER-1981-011-01, /01T-0:on 810715,during Visual Exam of Reactor Vessel Internal Components,Thermal Shield Bolts & Guide Block Discovered Missing.Cause Not Determined.Program Defined to Determine Cause & Effect Repairs (← links)
- 05000269/LER-1981-011, Forwards LER 81-011/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-010-03, /03L-0:on 810602,turbine Driven Emergency Feedwater Pump Declared Inoperable.Caused by Governor Valve Sticking in Open Position Due to Sys Contamination.Linkage Pin Removed,Governor Valve Freed & Stem Cleaned (← links)
- 05000269/LER-1981-010, Forwards LER 81-010/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-013-01, /01T-0:on 810630,backup Function of Isolating & Transfer Diodes in Instrumentation & Control Sys Disabled on All Channels on All Units.Caused by Misinterpretation of Tech Specs.Proposed Tech Spec Change Initiated (← links)
- 05000269/LER-1981-013, Forwards LER 81-013/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-007-01, /01T-0:on 810410,fire Barrier Door for West Penetration Room Was Inoperable W/O Proper Fire Watches Maintained.Caused by Personnel Error.Individual Involved Counseled Re Importance of Communication (← links)
- 05000269/LER-1981-007, Forwards LER 81-007/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-008-01, /01T-0:on 810513,loss of Valve Position Noticed. Valve CCW-8 Determined to Be Electrically Inoperable.Caused by Open Circuit in Several Conductors in Control Cable. Control Cable Replaced & Valve Electrically Cycled (← links)
- 05000269/LER-1981-008, Forwards LER 81-008/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-005-01, /01T-0:on 810222,low Power Injection Check Valve Discovered Leaking Excessively During Intersystem LOCA Leak Test.Caused by Buildup of Crud in Pivot Gap Area.Disc Hinge & Hinge Pin Replaced.Crud to Be Analyzed (← links)
- 05000269/LER-1981-005, Forwards LER 81-005/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-004-03, /03L-0:on 810212,primary Level Indication for Elevated Water Storage Tank Was Declared Inoperable Following Low Water Level Alarms.Caused by Loose Connectors on Air Compressor Starter Terminals.Connections Tightened (← links)
- 05000269/LER-1981-004, Forwards LER 81-004/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1981-003-03, /03L-0:on 810125,dc Input Fuse in 1DID Vital Inverter Blew,Causing Inverter to Lose Power source.1DIB Inverter Tripped When Ac Output Breaker Apparently Opened. 1DID Trip Caused by Blown Fuse.Cause of 1DIB Trip Unknown (← links)
- 05000269/LER-1981-003, Forwards LER 81-003/03L-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1980-040-01, /01T-0:on 801226,removable Instrument Assembly 40 Count Rate Increased,Apparently Due to Leak in once-through Steam Generator Tube.Caused by High Cycle Fatigue.Tube Replaced.Leak Procedure Implemented (← links)
- 05000269/LER-1980-040, Forwards LER 80-040/01T-0.Detailed Event Analysis Encl (← links)
- 05000269/LER-1978-022-01, /01T-0:on 780914,during Procedure IP/0/A/0201/0IA, Both Channels of Level Instrumentation on Core Flood Tank 2A Out of Tolerance.Cause Not Apparent.Channels Recalibr (← links)
- 05000269/LER-1978-022, Forwards LER 78-022/01T-0 (← links)
- 05000269/LER-1978-020-03, /03L-0:on 780829,during Steady State Operation, Valve LPSW-21 (Reactor Bldg Cooling Unit 1B Cooling Water Discharge Valve)Failed to Operate Properly.Caused by Misalignment of Gearing Between Valve & Operator (← links)
- 05000269/LER-1978-020, Forwards LER 78-020/03L-0 (← links)
- 05000269/LER-1978-021-01, /01T-0:on 780914,during Review of Calibr Data Following Annual Surveillance Testing,Transmitters PT-4 & PT-6 Were Nonconservatively Out of Calibr.Caused by Excessive Temp & Humidity within Penetration Room (← links)
- 05000269/LER-1978-021, Forwards LER 78-021/01T-0 (← links)
- 05000269/LER-1977-030-03, /03L-0:on 771220,2.8 Gallon Per Minute Leak Indicated by Reactor Bldg Normal Sump Level rate-of-change Monitor.Caused by Valve 1RC-2 Packing Failure.Valve Repacked & Tested Using PT/1/600/10 RCS Breakage (← links)
- 05000269/LER-1978-004-01, /01T-0:on 780301,1B Circuit Breaker Closed During Shift to High Speed.Caused by Improperly Adjusted Instantaneous Trip Setpoint.Breaker Reset & Setpoint Adjusted (← links)
- 05000269/LER-1978-002-03, /03L-01:on 780118,reactor Protection Sys Channel D Flow Indication Found High.Caused by Transmitter Failure Due to Blown Gasket.Gasket Replaced & Leak Stopped.Transmitter Will Be Replaced Unless It Can Be Recalibr (← links)
- 05000269/LER-1977-031-03, /03L-01:on 771229,increase in Reactor Coolant Leakage Noted.Caused by Analog Channel 1 WR Transmitter Error Due to Steam from Blown Switch.Transmitter Recalibr. Valving Out Switch Stopped Leak (← links)
- 05000269/LER-1977-017-03, /03L-01:on 771229,control Rod 4,group 6,dropped Into Core Causing Power Runback to 55%.Caused by Stator R70-046133 Short Due to Moisture Buildup & O-ring Seal Failure.Stator & O-ring Seals Were Replaced (← links)
- 05000269/LER-1978-001-03, /03L-01:on 780103,valve 3LP-14 Failed to Cycle Manually.Caused by Unaligned Engaging Collar Slipping While Trying to Cycle.Collar Realigned,Setscrew & Handwheel Tightened (← links)
- 05000269/LER-1978-029-03, /03L-0:on 780105,Unit 2 Failed to Start on Initiation.Caused by Failure of Breaker DB-26 to Close. Breaker Verified Operable by Subsequent Operation.Insp & Servicing Resulted in No Further Corrective Action (← links)
- 05000269/LER-1978-006-03, /03L-0:on 780305,Keowee Hydro Unit 2 Failed to Start.Caused by Inoperable Field Flashing Breaker.Breaker Failed on Three Previous Occasions (ROs 269/77-29,269/78- 01 & 269/78-03).Cause Unknown & Under Investigation (← links)
- 05000269/LER-1978-006, Forwards RO-269/78-06 & LER 78-006/03L-0 (← links)
- 05000269/LER-1978-010-01, /01T-0:on 780324,Unit 2 Not Verified Operable within Tech Specs Limit.Caused by Failure to Properly Issue & Follow Procedures Which Resulted in Exceeding Tech Spec Limits.Personnel Reinstructed & Procedures Rewritten (← links)
- 05000269/LER-1978-008-03, /03L-0:on 780315,valve 1FDW-108 Failed to Close. Failure Has Occurred Previously.Caused by Apparent Inability to Withstand Environ.Valves FDW-106 & 108 Will Be Replaced W/Valves of Appropriate Design (← links)
- 05000269/LER-1978-013-01, /01T-0:on 780421,primary-to-secondary Leak Indicated.Caused by Leaking Tubes Due to Weld Crack.Five Tubes Plugged.Investigations by Util & B&W Continuing (← links)
- 05000269/LER-1978-015-03, /03L-0:on 780604,breakers PCB-17 & PCB-18 Tripped W/O Apparent Cause & Took Startup Transformer CT1 Out of Svc.No Cause or Corrective Action Determined.Breakers & Circuits Checked & No Abnormalities Found (← links)
- 05000269/LER-1978-015, Forwards LER 78-015/03L-0 (← links)
- 05000269/LER-1978-009-03, /03L-0:on 780322,Unit 2 Failed to Start.Caused by Field Flashing Breaker Failure.Breaker Failed on Five Previous Occasions.No Cause for Breaker Failure Found. Monitoring & Investigation Will Continue (← links)
- 05000269/LER-1978-007-03, /03L-0:on 780314,Unit 2 Failed to Start.Caused by Field Flashing Breaker Failure.Breaker Failed Four Times Previously.Cause of Breaker Failure Not Determined. Monitoring & Investigation Will Continue (← links)
- 05000269/LER-1978-007, Forwards LER 78-007/03L-0 & 78-009/03L-0 (← links)
- 05000269/LER-1978-029, Forwards LER 78-029/03L-0 (← links)
- 05000269/LER-1977-029-03, /03L-0:on 771219,Keowee Hydro Unit 2 Failed to Start on Initiation from Oconee.Caused by Failure of Field Flashing Breaker to Close.Breaker Verified Operable by Subsequent Operation.Insp Showed No Abnormality (← links)
- 05000269/LER-1978-003-03, /03L-0:on 780222,Keowee Hydro Unit 2 Failed to Start.Caused by Inoperable Field Flashing Breaker.Breaker & Control Sys Insp Revealed No Abnormalities.Breaker Failed on Three Other Occasions.Cause for Breaker Failure Not Know (← links)
- 05000269/LER-2024-001, Standby Shutdown Facility (Ssf) Pressurizer Level Switch Configuration Caused by Legacy Procedure Deficiency Resulted in Condition Prohibited by Technical Specifications (← links)
- 05000269/LER-2019-001, Standby Shutdown Facility Reactor Coolant Makeup Pump Oil Suction Tubing Failure (← links)
- 05000269/LER-1979-029, Forwards LER 79-029/03L-0 (← links)
- 05000269/LER-2018-002, Loss. of Condenser Vacuum Results in a Main Turbine Trip and a Manual Reactor Trip (← links)
- 05000269/LER-2018-001, Manual Reactor Trip Due to Main Feedwater Flow Control Valve E/P Converter Failures (← links)
- 05000269/LER-1917-001, Regarding Loss of Both Keowee Hydroelectric Units Due to Human Error (← links)
- 05000269/LER-2016-002, Regarding Containment High Range Radiation Monitors Inoperable Due to Potential Thermally Induced Current Effects (← links)
- 05000269/LER-2016-003, Regarding Engineered Safeguards Protection System Automatic Actuation Output Logic Bypassed (← links)
- 05000269/LER-1979-029-03, /03L-0:on 790902,reactor Vessel Head Flange Leaked Slightly.Caused by Improper Installation of Incorrect O-rings.Installation Procedures Revised to Assure That Correct O-rings Are Used & Properly Installed (← links)
- 05000269/LER-2016-001, Regarding RPS Actuation - Unit 1 Reactor Trip Initiated by a Generator Lockout/Turbine Trip (← links)
- 05000269/LER-2014-002, Regarding Deficiency in Loss of Coolant Accident Analysis Adversely Affected Predicted Peak Cladding Temperature (← links)
- 05000269/LER-2014-001, Regarding Unanalyzed Condition Associated with the 13.8kV Emergency Power Cables Located in the Underground Trench (← links)
- 05000269/LER-2013-004, Regarding High Cycle Fatigue Resulted in Reactor Coolant Leak and Unit Shutdown (← links)
- 05000269/LER-2013-003, Regarding Keowee Hydroelectric Station Unit 2 - Emergency Power Lockout (← links)
- 05000269/LER-2013-002, LPI and RBS Trains Inoperable When 1LP-21 Was Closed Due to Human Error (← links)
- 05000269/LER-2011-004-01, Regarding Inability to Detect RCS Leak Rate Using the Particulate Radiation Monitor (← links)
- 05000269/LER-2013-001, Regarding Inadequate HVAC Load Analysis and Design Impacts on Emergency Power Equipment (← links)
- 05000269/LER-2012-001, Regarding Unanalyzed Conditions Exist for Standby Shutdown Facility Mitigated Events (← links)
- 05000269/LER-2011-006-01, Regarding Pressurizer Heater Capacity Non-Compliant with Technical Specification 3.4.9 (← links)
- 05000269/LER-2011-007-01, Regarding Inoperable Containment Isolation Valve (← links)
- 05000269/LER-2011-002-01, Regarding Tech Spec Required Shutdown for an Inoperable Containment Isolation Valve (← links)
- 05000269/LER-2011-005-01, For Oconee Nuclear Station, Unit 1, Reactor Protection System Overpower Flux/Flow/Imbalance Channels Inoperable (← links)
- 05000269/LER-2011-003-01, 1 for Oconee, Units 1, 2, and 3 Regarding Inoperability of the Standby Shutdown Facility Diesel Generator (← links)
- 05000269/LER-2011-006, Regarding Pressurizer Heater Capacity on-Compliant with Technical Specification 3.4.9 (← links)
- 05000269/LER-2011-007, Regarding Inoperable Containment Isolation Valve (← links)
- 05000269/LER-2011-005, Regarding Reactor Protective System Overpower Flux/Flow Imbalance Channels Inoperable (← links)
- 05000269/LER-2011-004, Regarding the Inability to Consistently Detect the Required Reactor Coolant System Leak Rate Using the Particulate Radiation Monitor, in All Applicable Modes of Operation, Results in a Condition by the (← links)
- 05000269/LER-2011-003, Inoperablility of the Standby Shutdown Facility, Due to a Design Oversight, for a Period That Exceeded That Allowed by the Technical Specifications (← links)
- 05000269/LER-2011-002, For Oconee Nuclear Station, Regarding Completion of a Shutdown Required by Technical Specifications for an Inoperable Containment Isolation Valve (← links)
- 05000269/LER-2000-003, Regarding Inoperable Emergency Feedwater Flowpath (← links)
- 05000269/LER-2010-002, Regarding Manual Reactor Trip Due to 1A1 and 1A2 Reactor Coolant Pump High Vibration Indication (← links)
- 05000269/LER-2010-001, For Oconee, Unit 1, Regarding Standby Shutdown Facility Letdown Line Orifice Strainer Blocked by Valve Gasket Material (← links)
- 05000269/LER-2009-002, Automatic Initiation of Emergency Feedwater Upon Loss of Main Feedwater (← links)
- 05000269/LER-2009-002-01, Main Steam Relief Valves Exceeded Lift Setpoint Acceptance Band (← links)
- 05000269/LER-2009-001, For Oconee, Unit 1, Regarding Several Prior Spent Fuel Pool Configuration Did Not Comply with TS 3.7.13 (← links)
- 05000269/LER-2008-002, Regarding Main Steam Relief Valves Exceeded Lift Setpoint Acceptance Band (← links)
- 05000269/LER-2008-001, Gas Void Found in High Pressure Injection System Suction Piping (← links)
- 05000269/LER-2007-002, Re Cask Shipments Include Startup Neutron Sources Not Listed in Cofc (← links)
- 05000269/LER-2007-001, Re Dual Unit Trip from Jocassee Breaker Failure (← links)
- 05000269/LER-2006-005, Re TS LCO Conditions Not Entered and Required Action Completion Times Not Met Due to Undetected Inoperable LTOP RCS Pressure Indication and Alarms (← links)
- 05000269/LER-2006-004, Re Design Oversight Results in Appendix R Deficiencies (← links)
- 05000269/LER-2006-003, Re Foreign Objects Discovered in Rbes Outlet Piping (← links)
- 05000269/LER-2006-002, High Energy Line Breaks Outside Licensing Basis May Result in Loss of Safety Function (← links)
- 05000269/LER-2005-002, Trip with Es Actuation Due to CRD Modification Deficiencies (← links)
- 05000269/LER-2005-001, Re Exceeded Tech Spec: Emergency Power Path Aux Power Source Inoperable (← links)
- 05000269/LER-2004-004, Re Improper Overloads Installed on Control Room Ventilation Filter Train (← links)
- 05000269/LER-2004-003, Loss of Containment Spray Due to Test When Redundant Train Inoperable (← links)
- 05000269/LER-2004-002-01, 1 for Oconee Nuclear Station Re Main Steam Line Break Mitigation Design/Analysis Deficiency (← links)
- 05000269/LER-2004-002, Re Main Steam Line Break Mitigation Design/Analysis Deficiency (← links)
- 05000269/LER-2004-001, Re Trip Due to Foreign Material in Turbine Electro-Hydraulic Control System (← links)
- 05000269/LER-2003-002, Regarding Apparent Reactor Coolant System Leakage from Three Reactor Vessel Head Penetrations (← links)
- 05000269/LER-2003-001, For Oconee Nuclear Station, Regarding Design Oversight Resulting in Appendix R Control Cable Separation Issue (← links)
- 05000269/LER-2002-001, From Oconee Nuclear Station Unit Three Regarding Moisture Separator Reheater Level Results in Reactor Trip (← links)
- 05000269/LER-2002-005, Potential Failure of Manual Atmospheric Dump Valve Due to Pressure Locking on 11/28/1997 (← links)
- 05000269/LER-2002-004, Potential Loss of Safety Function Due to Inadequate Design Documentation and Procedure Change (← links)
- 05000269/LER-2002-002, Re Potential for Fire to Indirectly Damage Mitigation Component for Oconee Nuclear Station Unit 1 (← links)
- 05000269/LER-2002-003, Re Minor Reactor Pressure Vessel Head Leakage Due to Primary Water Stress Corrosion Cracking of an Alloy 600 Control Rod Drive Nozzle (← links)
- 05000269/LER-2022-002, Reactor Coolant Oconee Nuclear Station, Unit 1, System Pressure Boundary Leak on Reactor Coolant Pump Lower Bearing Thermowell (← links)
- 05000269/LER-2025-001, Inoperability of Keowee Hydroelectric Unit Due to Legacy Deficiencies in Generator Exceiter Speed Switch Calibration Procedure Resulting in a Condition Prohibited by Technical Specifications (← links)
- ML083230051 (redirect page) (← links)
- 05000287/LER-2008-001, Trip Due to Control Rod Drive System Processor Failure (← links)
- 05000269/LER-2008-002, Regarding Main Steam Relief Valves Exceeded Lift Setpoint Acceptance Band (← links)
- 05000270/LER-2008-001, Regarding Unit 2 Reactor Trip Due to Indication of Loss of Vacuum During Calibration of a Condenser Pressure Transmitter (← links)