05000313/LER-1999-313, :on 990911,AI of EFWS Occurred During Plant Shutdown as Result of Securing Running RCPs Due to Reverse Rotation of Idle Pump.Caused by Failure of Motor anti-rotation Device.Device Was Replaced.With1999-10-11011 October 1999
- on 990911,AI of EFWS Occurred During Plant Shutdown as Result of Securing Running RCPs Due to Reverse Rotation of Idle Pump.Caused by Failure of Motor anti-rotation Device.Device Was Replaced.With
05000368/LER-1999-005-02, :on 990831,two Trip Functions of One Core Protection Calculator Channel Potentially Inoperable Longer than TS Allow Was Discovered.Caused by Resistance Fluctuations.Util Plans to Replace Switch.With1999-09-30030 September 1999
- on 990831,two Trip Functions of One Core Protection Calculator Channel Potentially Inoperable Longer than TS Allow Was Discovered.Caused by Resistance Fluctuations.Util Plans to Replace Switch.With
05000313/LER-1999-002-04, :on 990706,TS Allowable Outage Time for One EDG Was Exceeded Due to Idler Gear Stub Shaft Bracket Bolting Failure.Caused by Loss of Bolt pre-load.Installed New Modified Idler Stub Shaft Assembly.With1999-08-0505 August 1999
- on 990706,TS Allowable Outage Time for One EDG Was Exceeded Due to Idler Gear Stub Shaft Bracket Bolting Failure.Caused by Loss of Bolt pre-load.Installed New Modified Idler Stub Shaft Assembly.With
05000313/LER-1999-001-04, :on 990521,automatic Actuation of CREVS Occurred Due to Higher than Normal Radiation at Detector When Radioactive Filter Was Moved in Adjacent Area.Training Has Been Provided to Personnel.With1999-06-21021 June 1999
- on 990521,automatic Actuation of CREVS Occurred Due to Higher than Normal Radiation at Detector When Radioactive Filter Was Moved in Adjacent Area.Training Has Been Provided to Personnel.With
05000368/LER-1999-004-01, :on 990414,noted That Two Trip Functions of One Core Protection Calculator Channel Were Potentially Inoperable.Caused by Excore Detector Drift.Affected Trip Functions Have Remained Bypassed or Tripped.With1999-05-12012 May 1999
- on 990414,noted That Two Trip Functions of One Core Protection Calculator Channel Were Potentially Inoperable.Caused by Excore Detector Drift.Affected Trip Functions Have Remained Bypassed or Tripped.With
05000368/LER-1999-003, :on 990224,noted That One Excore Nuclear Instrumentation Channel Was Inoperable Longer than Allowed by Ts.Caused by Detector Failure.Proposed Exigent TS Change Was Submitted to Allow Operation.With1999-03-23023 March 1999
- on 990224,noted That One Excore Nuclear Instrumentation Channel Was Inoperable Longer than Allowed by Ts.Caused by Detector Failure.Proposed Exigent TS Change Was Submitted to Allow Operation.With
05000368/LER-1999-001, :on 990108,TS Requirements for as-lift Settings of MSSV Were Not Met.Caused by Errors in Determination of Effective Seating Area by Vendor During Test Device Qualification.Replaced All Mssvs.With1999-03-0909 March 1999
- on 990108,TS Requirements for as-lift Settings of MSSV Were Not Met.Caused by Errors in Determination of Effective Seating Area by Vendor During Test Device Qualification.Replaced All Mssvs.With
05000368/LER-1999-002-01, :on 990202,noted Failure to Verify Station Battery cell-to-cell & Terminal Tightness.Caused by Inadvertent Omission of Requirements During Procedure Revs. Svc Test Procedures Were Revised.With1999-03-0404 March 1999
- on 990202,noted Failure to Verify Station Battery cell-to-cell & Terminal Tightness.Caused by Inadvertent Omission of Requirements During Procedure Revs. Svc Test Procedures Were Revised.With
05000368/LER-1999-001-01, :on 990108,four Main Steam Safety Valves as- Found Lift Values Failed to Meet TS Requirements.Cause of Evaluation in progress.Short-term & long-term Corrective Actions Will Be Described in Suppl to Rept.With1999-01-28028 January 1999
- on 990108,four Main Steam Safety Valves as- Found Lift Values Failed to Meet TS Requirements.Cause of Evaluation in progress.Short-term & long-term Corrective Actions Will Be Described in Suppl to Rept.With
05000313/LER-1998-005-03, :on 981225,two Manual RTs & Manual Actuations of EFWS Due to Reduced Cw Flow to Mc.Caused by Large Intrusions of Fish Exceeding Removal Capability of Traveling Screen.Increased Fish Removal Capability.With1999-01-21021 January 1999
- on 981225,two Manual RTs & Manual Actuations of EFWS Due to Reduced Cw Flow to Mc.Caused by Large Intrusions of Fish Exceeding Removal Capability of Traveling Screen.Increased Fish Removal Capability.With
05000368/LER-1998-008-01, :on 981215,one CR Emergency Chiller,Part of CREVS Discovered to Be Inoperable,While Chiller in Other Train Was Out of Svc for Planned Maint.Caused by Equipment Failure.Operations Personnel Verified.With1999-01-14014 January 1999
- on 981215,one CR Emergency Chiller,Part of CREVS Discovered to Be Inoperable,While Chiller in Other Train Was Out of Svc for Planned Maint.Caused by Equipment Failure.Operations Personnel Verified.With
0CAN129805, LER 98-S02-00:on 981124,security Officer Found Not to Have Had Control of Weapon for Period of Approx 3 Minutes Due to Inadequate self-checking to Ensure That Weapon Remained Secure.All Security Officers Briefed.With1998-12-11011 December 1998
LER 98-S02-00:on 981124,security Officer Found Not to Have Had Control of Weapon for Period of Approx 3 Minutes Due to Inadequate self-checking to Ensure That Weapon Remained Secure.All Security Officers Briefed.With
05000368/LER-1998-007, :on 981005,min Shift Crew Composition Was Not Maintained.Caused by Inadequate Training to Instructors on Use of Scantron Grading Machine.Provided Training on Scantron Machine & Revised Procedures.With1998-10-29029 October 1998
- on 981005,min Shift Crew Composition Was Not Maintained.Caused by Inadequate Training to Instructors on Use of Scantron Grading Machine.Provided Training on Scantron Machine & Revised Procedures.With
05000313/LER-1998-004-04, :on 980923,inadvertent Actuation of Efs Occurred During Surveillance Testing.Caused by Personnel Error.Personnel Involved with Event Were Counseled & Procedure Changes Were Implemented.With1998-10-22022 October 1998
- on 980923,inadvertent Actuation of Efs Occurred During Surveillance Testing.Caused by Personnel Error.Personnel Involved with Event Were Counseled & Procedure Changes Were Implemented.With
05000368/LER-1998-006-01, :on 980805,noted That Automatic Removal of Operating Bypasses for Logarithmic Power High Trip & CPC Trips Were Not within Required Values of Tss.Caused by Inaccurate Wording.Submitted TS Change Request1998-09-0404 September 1998
- on 980805,noted That Automatic Removal of Operating Bypasses for Logarithmic Power High Trip & CPC Trips Were Not within Required Values of Tss.Caused by Inaccurate Wording.Submitted TS Change Request
05000368/LER-1998-005-01, :on 980722,discovered That Surveillance Test of Sodium Hydroxide Addition Pump Was Not Performed as Required by Ts.Caused by Deficiencies in Test Procedure.Procedure Revised1998-08-18018 August 1998
- on 980722,discovered That Surveillance Test of Sodium Hydroxide Addition Pump Was Not Performed as Required by Ts.Caused by Deficiencies in Test Procedure.Procedure Revised
05000313/LER-1998-003-03, :on 980716,concluded That Several Operators Had Not Maintained Active Status,Per 10CFR55.53(e).Caused by Misinterpretation of Regulations.Affected Individuals Were Required to Reactivate,Per 10CFR55.53(f)1998-08-17017 August 1998
- on 980716,concluded That Several Operators Had Not Maintained Active Status,Per 10CFR55.53(e).Caused by Misinterpretation of Regulations.Affected Individuals Were Required to Reactivate,Per 10CFR55.53(f)
05000368/LER-1998-004-01, :on 980612,surveillance Tests of Fuel Handling Area & Containment Purge & Exhaust Fan Flow Rates Were Not Performed as Required by Ts.Caused by Procedure Change Deficiency.Fans 2VEF-14A & B & 2VEF-15 Declared Inoperable1998-07-0808 July 1998
- on 980612,surveillance Tests of Fuel Handling Area & Containment Purge & Exhaust Fan Flow Rates Were Not Performed as Required by Ts.Caused by Procedure Change Deficiency.Fans 2VEF-14A & B & 2VEF-15 Declared Inoperable
05000368/LER-1998-002-04, :on 980520,EFAS Automatically Actuated to Maintain Water Level in a Sg.Caused by Inadequate self- Checking of Plant Response by Control Room Operations Personnel.Operations Personnel Counseled1998-06-18018 June 1998
- on 980520,EFAS Automatically Actuated to Maintain Water Level in a Sg.Caused by Inadequate self- Checking of Plant Response by Control Room Operations Personnel.Operations Personnel Counseled
05000368/LER-1998-003-01, :on 980520,determined That Surveillance of Control Element Assembly Position Was Not Being Performed for One Control Element Assembly Group,Per Ts.Caused by Inadequate Verification.Change Implemented1998-06-18018 June 1998
- on 980520,determined That Surveillance of Control Element Assembly Position Was Not Being Performed for One Control Element Assembly Group,Per Ts.Caused by Inadequate Verification.Change Implemented
05000313/LER-1998-002-03, :on 980505,automatic Actuation of CREVS Occurred Due to Higher than Normal Radiation at Detector When Filtration/Vacuum Assembly Was Moved in Adjacent Area. Revised Procedures to Add Noted Precautions1998-06-0101 June 1998
- on 980505,automatic Actuation of CREVS Occurred Due to Higher than Normal Radiation at Detector When Filtration/Vacuum Assembly Was Moved in Adjacent Area. Revised Procedures to Add Noted Precautions
05000368/LER-1998-001-02, :on 980309,surveillance Testing of Containment Bldg Personnel & Escape Air Lock Door Interlocks Did Not Verify Operability of Each Interlock Function.Caused by Inappropriate Interpretation.Revised Maint Task Documents1998-04-0707 April 1998
- on 980309,surveillance Testing of Containment Bldg Personnel & Escape Air Lock Door Interlocks Did Not Verify Operability of Each Interlock Function.Caused by Inappropriate Interpretation.Revised Maint Task Documents
05000313/LER-1997-001, :on 970408,inconsistencies Between Once Through SG Tube Destructive Examination Were Noted.Caused by Morphology Differences Between Flaws Used to Develop Sizing Technique.Discretion Was Verbally Approved1998-03-18018 March 1998
- on 970408,inconsistencies Between Once Through SG Tube Destructive Examination Were Noted.Caused by Morphology Differences Between Flaws Used to Develop Sizing Technique.Discretion Was Verbally Approved
05000313/LER-1997-005-04, :on 971022,surveillance Testing Did Not Verify That Valve Would Close Upon Receiving Es Signal.Caused by Deficiency in Development of Original Tp.Testing W/Special Work Plan Verified CV-3643 Was Operable1997-11-20020 November 1997
- on 971022,surveillance Testing Did Not Verify That Valve Would Close Upon Receiving Es Signal.Caused by Deficiency in Development of Original Tp.Testing W/Special Work Plan Verified CV-3643 Was Operable
05000313/LER-1997-004-04, :on 971021,two Remotely Operated Reactor Bldg Isolation Valves Were Not Tested as Required.Caused by Misinterpretation of TS Surveillance requirements.SV-1440 & SV-1443 Were Successfully Stroke Tested1997-11-20020 November 1997
- on 971021,two Remotely Operated Reactor Bldg Isolation Valves Were Not Tested as Required.Caused by Misinterpretation of TS Surveillance requirements.SV-1440 & SV-1443 Were Successfully Stroke Tested
05000368/LER-1997-008-01, :on 971002,determined That Surveillance Test in 1996 May Have Resulted in Degraded SG Tubes Being Left in Svc Contrary to Requirements of Tech Specs.Caused by Personnel Error.Training Process Implemented1997-10-27027 October 1997
- on 971002,determined That Surveillance Test in 1996 May Have Resulted in Degraded SG Tubes Being Left in Svc Contrary to Requirements of Tech Specs.Caused by Personnel Error.Training Process Implemented
2CAN109701, :on 970514,discovered Deficiency in ANO-2 Tech Specs That Provided Potential for Premature Actuation of RAS During Loca.Caused by Deficiency in Tech Specs.Interim Administrative Controls Established1997-10-14014 October 1997
- on 970514,discovered Deficiency in ANO-2 Tech Specs That Provided Potential for Premature Actuation of RAS During Loca.Caused by Deficiency in Tech Specs.Interim Administrative Controls Established
05000368/LER-1997-006, :on 970606,inadvertent Start of EDG Start Occurred.Caused by Inadequate Written Communication Re Job Order Instructions.Job Order & Appropriate Procedures Revised1997-09-0505 September 1997
- on 970606,inadvertent Start of EDG Start Occurred.Caused by Inadequate Written Communication Re Job Order Instructions.Job Order & Appropriate Procedures Revised
05000313/LER-1997-003-03, :on 970708,inadvertent Automatic Actuation of EFW Sys Occurred.Caused by Tripping of EFIC Channel D Power Supplies Coincidental W/Loss of FW Pumps.Rps Testing Secured & All Trips Reset1997-08-0707 August 1997
- on 970708,inadvertent Automatic Actuation of EFW Sys Occurred.Caused by Tripping of EFIC Channel D Power Supplies Coincidental W/Loss of FW Pumps.Rps Testing Secured & All Trips Reset
05000368/LER-1996-006-01, :on 970606,inadvertent Start of EDG Occurred. Caused by Inadequate Written Communication.Revised Job Order,Will Revise Appropriate Procedures Re EDG Operation & Will Train Sys Engineers on Lessons Learned from Event1997-07-30030 July 1997
- on 970606,inadvertent Start of EDG Occurred. Caused by Inadequate Written Communication.Revised Job Order,Will Revise Appropriate Procedures Re EDG Operation & Will Train Sys Engineers on Lessons Learned from Event
05000368/LER-1997-007-01, :on 970626,fuel Handling Area Ventilation Flow Rate Less than TS Requirement During Crane Operation W/Load Over Storage Pool Due to Personnel Error.Provided Addl Guidance in Crane Hold Card Instructions1997-07-28028 July 1997
- on 970626,fuel Handling Area Ventilation Flow Rate Less than TS Requirement During Crane Operation W/Load Over Storage Pool Due to Personnel Error.Provided Addl Guidance in Crane Hold Card Instructions
05000313/LER-1997-001-01, :on 970408,inconsistencies Between Once Through SG Tube Destructive Exam Results & Intergranular Attack Flaw Sizing Qualification Data Was Discovered.Caused by Incorrect Data Sets.Both OTSGs Declared Inoperable1997-07-15015 July 1997
- on 970408,inconsistencies Between Once Through SG Tube Destructive Exam Results & Intergranular Attack Flaw Sizing Qualification Data Was Discovered.Caused by Incorrect Data Sets.Both OTSGs Declared Inoperable
05000368/LER-1997-005-01, :on 970604,MSSV as-found Lift Values Did Not Meet TS Requirements Due to Combination of Maint,Testing & Design Factors.Mssv Were Replaced W/Valves That Had Been Fully Inspected & Tested at NWS1997-07-0303 July 1997
- on 970604,MSSV as-found Lift Values Did Not Meet TS Requirements Due to Combination of Maint,Testing & Design Factors.Mssv Were Replaced W/Valves That Had Been Fully Inspected & Tested at NWS
05000368/LER-1996-006-04, :on 970606,inadvertent Start of EDG Occurred Which Resulted from Inadequate Written Guidance Re Sys Component Testing.Job Order Was Revised to Include Instructions to Vent Air Start Header1997-07-0202 July 1997
- on 970606,inadvertent Start of EDG Occurred Which Resulted from Inadequate Written Guidance Re Sys Component Testing.Job Order Was Revised to Include Instructions to Vent Air Start Header
05000368/LER-1997-004-01, :on 970526,engineer Noticed That Sample Pump on Containment Bldg Super Particulate I Noble Gas Radiation Monitor Was Inoperable.Caused by Inadequate Alarming Capabilities.Software Change Implemented1997-06-25025 June 1997
- on 970526,engineer Noticed That Sample Pump on Containment Bldg Super Particulate I Noble Gas Radiation Monitor Was Inoperable.Caused by Inadequate Alarming Capabilities.Software Change Implemented
05000313/LER-1996-002, :on 970519,surveillance Tests Required by TS Were Incomplete Because All Combinations of Contacts Not Tested Due to Procedure Deficiencies.Verified Operability of RPS1997-06-18018 June 1997
- on 970519,surveillance Tests Required by TS Were Incomplete Because All Combinations of Contacts Not Tested Due to Procedure Deficiencies.Verified Operability of RPS
05000368/LER-1997-003-01, :on 970514,personnel Discovered Deficiency in ANO-2 Ts,Providing Potential for Premature Actuation of Recirculation Signal During Loca.Caused by Deficiency in Ts. TS Amend Request Prepared1997-06-13013 June 1997
- on 970514,personnel Discovered Deficiency in ANO-2 Ts,Providing Potential for Premature Actuation of Recirculation Signal During Loca.Caused by Deficiency in Ts. TS Amend Request Prepared
05000313/LER-1997-002-02, :on 970418,four ROs Did Not Have Required Corrective Eyewear for Use W/Self Contained Breathing Apparatus Readily Available.Caused by Inadequate Procedural Guidance.Operations Procedures Revised1997-05-19019 May 1997
- on 970418,four ROs Did Not Have Required Corrective Eyewear for Use W/Self Contained Breathing Apparatus Readily Available.Caused by Inadequate Procedural Guidance.Operations Procedures Revised
05000313/LER-1997-001-03, :on 970408,inconsistencies Between OTSG Tube Destructive Exam Results & Iga Flaw Sizing Qualification Data Caused Possibility That Tubes Were Left in Svc.Otsgs Declared Inoperable1997-05-0707 May 1997
- on 970408,inconsistencies Between OTSG Tube Destructive Exam Results & Iga Flaw Sizing Qualification Data Caused Possibility That Tubes Were Left in Svc.Otsgs Declared Inoperable
05000368/LER-1997-002-01, :on 970204,function Providing Automatic Transfer of EFW Pump Suction Source to SW Inoperable.Caused by Inadequate Configuration Control of Instrument Isolation Valves.Valve Lineup Verification Performed1997-03-0606 March 1997
- on 970204,function Providing Automatic Transfer of EFW Pump Suction Source to SW Inoperable.Caused by Inadequate Configuration Control of Instrument Isolation Valves.Valve Lineup Verification Performed
05000368/LER-1997-001-01, :on 970129,2R11 Failed to Identify Existing Tube Flaws for Further Evaluation as Required by SG Tube Surveillance Program.Caused by Personnel Error.Entergy Oversight of Testing Process Increased1997-02-28028 February 1997
- on 970129,2R11 Failed to Identify Existing Tube Flaws for Further Evaluation as Required by SG Tube Surveillance Program.Caused by Personnel Error.Entergy Oversight of Testing Process Increased
05000368/LER-1996-005, :on 961120,did Not Perform Surveillance Testing of Plant Protective Sys & post-accident Monitoring Instrumentation Due to Inadequate Procedures.Caused by Misinterpretation of TS1997-01-30030 January 1997
- on 961120,did Not Perform Surveillance Testing of Plant Protective Sys & post-accident Monitoring Instrumentation Due to Inadequate Procedures.Caused by Misinterpretation of TS
05000368/LER-1996-004-01, :on 961030,deficient Failure Modes & Effects Analysis for DC Electrical Sys Resulted in Unavailability of Automatic Functions of Plant Protective Sys.Established Administrative Controls1997-01-30030 January 1997
- on 961030,deficient Failure Modes & Effects Analysis for DC Electrical Sys Resulted in Unavailability of Automatic Functions of Plant Protective Sys.Established Administrative Controls
05000368/LER-1996-005-04, :on 961120,surveillance Testing of Some Features of Plant Protective Sys & post-accident Monitoring Instrumentation Were Not Performed Due to Inadequate Procedures.Temp Elements Will Be Revised1996-12-20020 December 1996
- on 961120,surveillance Testing of Some Features of Plant Protective Sys & post-accident Monitoring Instrumentation Were Not Performed Due to Inadequate Procedures.Temp Elements Will Be Revised
05000313/LER-1996-010-02, :on 961119,failed to Test Reactor Protection Sys (RPS) High Temp Trip Function.Caused by Inadequate Procedure Rev.Declared RPS Inoperable,Revised RPS Test Procedures & Tested All Four Channels1996-12-19019 December 1996
- on 961119,failed to Test Reactor Protection Sys (RPS) High Temp Trip Function.Caused by Inadequate Procedure Rev.Declared RPS Inoperable,Revised RPS Test Procedures & Tested All Four Channels
05000313/LER-1996-006, :on 960527,EDGs Were Declared Inoperable Due to Excessive Water in Fuel Oil Sys.Drained,Cleaned & Inspected T-25,increased Height of Nozzles in T-25 by Six Inches & Revised Sampling Procedures1996-11-27027 November 1996
- on 960527,EDGs Were Declared Inoperable Due to Excessive Water in Fuel Oil Sys.Drained,Cleaned & Inspected T-25,increased Height of Nozzles in T-25 by Six Inches & Revised Sampling Procedures
05000368/LER-1996-004-04, :on 961030,potential Failure of Functions of Plant Protective Sys Were Determined During Loss of Power. Cause Indeterminate.Established Administrative Controls to Prevent Channel from Being Bypassed1996-11-27027 November 1996
- on 961030,potential Failure of Functions of Plant Protective Sys Were Determined During Loss of Power. Cause Indeterminate.Established Administrative Controls to Prevent Channel from Being Bypassed
05000313/LER-1996-009-02, :on 961017,discovered Fire in Reactor Bldg. Caused by Cracked Weld in Oil Line on Reactor Coolant Pump Motor.Extinguished Fire,Replaced Damaged Insulation & Repaired Cracked Weld1996-11-18018 November 1996
- on 961017,discovered Fire in Reactor Bldg. Caused by Cracked Weld in Oil Line on Reactor Coolant Pump Motor.Extinguished Fire,Replaced Damaged Insulation & Repaired Cracked Weld
05000313/LER-1996-008-02, :on 960922,ANO-1 Surveillance Testing Discovered Leakage from a Sluice Gate of 103.1 Gallons Per Minute.Caused by Zebra Mussel Infestation of Cw Bays.Cw Bays & Forebays Area Will Be Inspected1996-10-22022 October 1996
- on 960922,ANO-1 Surveillance Testing Discovered Leakage from a Sluice Gate of 103.1 Gallons Per Minute.Caused by Zebra Mussel Infestation of Cw Bays.Cw Bays & Forebays Area Will Be Inspected
05000313/LER-1996-007-02, :on 960912,automatic Reactor Trip & Emergency Feedwater Sys Actuation Occurred When Two RCP Motors de-energized.Caused by Defective Fuse in Electrical Bus Undervoltage Circuit.Fuse Replaced1996-10-10010 October 1996
- on 960912,automatic Reactor Trip & Emergency Feedwater Sys Actuation Occurred When Two RCP Motors de-energized.Caused by Defective Fuse in Electrical Bus Undervoltage Circuit.Fuse Replaced