| | | Reporting criterion |
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| 05000324/LER-1979-001, Forwards LER 79-001/03L-0 | Forwards LER 79-001/03L-0 | |
| 05000324/LER-1979-001-03, /03L-0 on 790102:instrument B21-LIS-N017B Found Out of Calibr;Switch Actuated at 1.13 Inches.Switch Out of Calibr Due to Setpoint Drift.New Instrument Ordered; Existing Instrument Showed Excessive Deadbeat in Indicator | /03L-0 on 790102:instrument B21-LIS-N017B Found Out of Calibr;Switch Actuated at 1.13 Inches.Switch Out of Calibr Due to Setpoint Drift.New Instrument Ordered; Existing Instrument Showed Excessive Deadbeat in Indicator | |
| 05000325/LER-1979-001, Forwards LER 79-001/03L-0 | Forwards LER 79-001/03L-0 | |
| 05000325/LER-1979-001-03, /03L-0 on 790104:HPCI Sys Failed Response Time Periodic Test.Testing to Be Done Again After Reactor Startup,When Steam Is Available.Event Cause & Corrections to Be Submitted After Satisfactory Testing | /03L-0 on 790104:HPCI Sys Failed Response Time Periodic Test.Testing to Be Done Again After Reactor Startup,When Steam Is Available.Event Cause & Corrections to Be Submitted After Satisfactory Testing | |
| 05000325/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | |
| 05000324/LER-1979-002-03, /03L-0 on 790115:generator Failed to Produce Output Voltage.Caused by Failure of Generator Field Reset Switch to Make Good Contact | /03L-0 on 790115:generator Failed to Produce Output Voltage.Caused by Failure of Generator Field Reset Switch to Make Good Contact | |
| 05000324/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | |
| 05000325/LER-1979-002-03, /03L-0 on 790123:standby Liquid Control Relief Valve C41-F029 Lifted at Pressure of 1300 Psig,Below Tech Spec Min.No Mechanical Reason Found.Valve Reset | /03L-0 on 790123:standby Liquid Control Relief Valve C41-F029 Lifted at Pressure of 1300 Psig,Below Tech Spec Min.No Mechanical Reason Found.Valve Reset | |
| 05000324/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | |
| 05000324/LER-1979-003-03, /03L-0 on 790130:reactor Scrammed on Average Power Range Monitor High Flux.Caused by stem-disc Separating, Causing a Momentary Pressure Spike.Repairs to Appropriate Valve Will Be Made | /03L-0 on 790130:reactor Scrammed on Average Power Range Monitor High Flux.Caused by stem-disc Separating, Causing a Momentary Pressure Spike.Repairs to Appropriate Valve Will Be Made | |
| 05000325/LER-1979-003-03, /03L-0 on 790117:steamline Low Pressure Isolation Instrument Actuated Below Tech Spec Min.Caused by Loose Clamp Block Allowing Instrument Torque Shaft to Slip | /03L-0 on 790117:steamline Low Pressure Isolation Instrument Actuated Below Tech Spec Min.Caused by Loose Clamp Block Allowing Instrument Torque Shaft to Slip | |
| 05000325/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | |
| 05000325/LER-1979-004, Forwards LER 79-004/03L-0 | Forwards LER 79-004/03L-0 | |
| 05000325/LER-1979-004-03, /03L-0 on 790105:containment Atmospheric Dilution Tank Contained Less than Tech Spec Limit.Operator Misread Conversion Graph,Resulting in Higher than Actual Nitrogen Reading.Tank Indicators to Be Marked W/Specific Limit | /03L-0 on 790105:containment Atmospheric Dilution Tank Contained Less than Tech Spec Limit.Operator Misread Conversion Graph,Resulting in Higher than Actual Nitrogen Reading.Tank Indicators to Be Marked W/Specific Limit | |
| 05000324/LER-1979-004, Forwards LER 79-004/03L-0 | Forwards LER 79-004/03L-0 | |
| 05000324/LER-1979-004-03, /03L-0 on 790110:chart Recorder for CAC-AT-1259 Was Reading Inaccurately,Since Sample Pump for Drywell Monitor CAC-AT-1259 Was Producing Poor Flow,Due to Malfunction | /03L-0 on 790110:chart Recorder for CAC-AT-1259 Was Reading Inaccurately,Since Sample Pump for Drywell Monitor CAC-AT-1259 Was Producing Poor Flow,Due to Malfunction | |
| 05000325/LER-1979-005-03, /03L-0 on 790104:1A Recirculation Pump Tripped W/Reactor at 97% power.1B Pump Then Reduced to Approx 50% Speed.Caused by 1A Pump Motor Generator Set Low Lubrication Oil Pressure Signal & Missing Locknut.New Locknuts Put in | /03L-0 on 790104:1A Recirculation Pump Tripped W/Reactor at 97% power.1B Pump Then Reduced to Approx 50% Speed.Caused by 1A Pump Motor Generator Set Low Lubrication Oil Pressure Signal & Missing Locknut.New Locknuts Put in | |
| 05000325/LER-1979-005, Forwards LER 79-005/03L-0 | Forwards LER 79-005/03L-0 | |
| 05000324/LER-1979-005-03, /03L-0 on 790109:RHR Pump Discharge Pressure Switch E11-PS-N020D Failed,Causing Pump Running Annunciator. Caused by Contact Plunger Stem Corrosion | /03L-0 on 790109:RHR Pump Discharge Pressure Switch E11-PS-N020D Failed,Causing Pump Running Annunciator. Caused by Contact Plunger Stem Corrosion | |
| 05000324/LER-1979-005, Forwards LER 79-005/03L-0 | Forwards LER 79-005/03L-0 | |
| 05000325/LER-1979-006-03, /03L-0 on 790316:during Refueling Outage,Condenser Tube Leaks Allowed Chlorides to Enter Condensate Sys.Cfd in Svc Became Depleted Due to Entrained Oxygen.Condenser Vacuum Broken & Cfds & Cdds Placed in Svc to Clean Sys | /03L-0 on 790316:during Refueling Outage,Condenser Tube Leaks Allowed Chlorides to Enter Condensate Sys.Cfd in Svc Became Depleted Due to Entrained Oxygen.Condenser Vacuum Broken & Cfds & Cdds Placed in Svc to Clean Sys | |
| 05000324/LER-1979-006-03, /03L-0 on 790131:while Performing High Drywell Pressure Functional Check of Core Spray HPCI & LPCI a Loop RHR Logic Failure Alarm Received.Caused by Blown Fuse in P617 | /03L-0 on 790131:while Performing High Drywell Pressure Functional Check of Core Spray HPCI & LPCI a Loop RHR Logic Failure Alarm Received.Caused by Blown Fuse in P617 | |
| 05000325/LER-1979-006, Forwards LER 79-006/03L-0 | Forwards LER 79-006/03L-0 | |
| 05000324/LER-1979-006, Forwards LER 79-006/03L-0 | Forwards LER 79-006/03L-0 | |
| 05000325/LER-1979-007, Forwards LER 79-007/03L-0 | Forwards LER 79-007/03L-0 | |
| 05000325/LER-1979-007-03, /03L-0 on 790109:during Sys Component Test, Residual Heat Removal Pump D Would Not Start.Caused by Motor Switch Being in Off Position | /03L-0 on 790109:during Sys Component Test, Residual Heat Removal Pump D Would Not Start.Caused by Motor Switch Being in Off Position | |
| 05000324/LER-1979-007-01, /01T-0 on 790227:during Reactor Annulus Pressurization Analysis,Pipe Whip Restraint in Each Unit Did Not Conform.Caused by Improper Design of Restraint.Architect & Owner Will Design Addl Restraint | /01T-0 on 790227:during Reactor Annulus Pressurization Analysis,Pipe Whip Restraint in Each Unit Did Not Conform.Caused by Improper Design of Restraint.Architect & Owner Will Design Addl Restraint | |
| 05000324/LER-1979-007, Forwards LER 79-007/01T-0 | Forwards LER 79-007/01T-0 | |
| 05000325/LER-1979-008, Forwards LER 79-008/03L-0 | Forwards LER 79-008/03L-0 | |
| 05000325/LER-1979-008-03, /03L-0 on 790112:unacceptable Levels of Pump Differential Sys & Vibration Noted During Test of 1B Pump. Cause Unknown | /03L-0 on 790112:unacceptable Levels of Pump Differential Sys & Vibration Noted During Test of 1B Pump. Cause Unknown | |
| 05000324/LER-1979-009-03, /03L-0 on 790207:Bergen-Paterson Snubber 2E41-61SS99 Had Low Fluid Level.Caused by Leaking Seal.Seal Was Replaced | /03L-0 on 790207:Bergen-Paterson Snubber 2E41-61SS99 Had Low Fluid Level.Caused by Leaking Seal.Seal Was Replaced | |
| 05000324/LER-1979-009, Forwards LER 79-009/03L-0 | Forwards LER 79-009/03L-0 | |
| 05000325/LER-1979-010, Forwards LER 79-010/03L-0 | Forwards LER 79-010/03L-0 | |
| 05000325/LER-1979-010-03, /03L-0 on 790123:main Turbine Control Valve Response Time Test Failed to Meet Tech Spec Response Time. Caused by Slow Actuation Time on Installed Switch | /03L-0 on 790123:main Turbine Control Valve Response Time Test Failed to Meet Tech Spec Response Time. Caused by Slow Actuation Time on Installed Switch | |
| 05000324/LER-1979-012, Forwards LER 79-012/03L-0 | Forwards LER 79-012/03L-0 | |
| 05000324/LER-1979-012-03, /03L-0 on 790219:Snubber 2-E11-89SS480 Was Fully Extended.Caused by Loose Pipe Clamp.Snubber & Clamp Were Repositioned & Bolted Into Place | /03L-0 on 790219:Snubber 2-E11-89SS480 Was Fully Extended.Caused by Loose Pipe Clamp.Snubber & Clamp Were Repositioned & Bolted Into Place | |
| 05000324/LER-1979-013-03, /03L-0 on 790220:after Maint,Calibr on Suppression Pool Level Transmitter CAC-LT-2601 Found to Be 1/2 Inch Below Spec.Caused by Transmitter Being Out of Calibr. Instrument Recalibr | /03L-0 on 790220:after Maint,Calibr on Suppression Pool Level Transmitter CAC-LT-2601 Found to Be 1/2 Inch Below Spec.Caused by Transmitter Being Out of Calibr. Instrument Recalibr | |
| 05000324/LER-1979-013, Forwards LER 79-013/03L-0 | Forwards LER 79-013/03L-0 | |
| 05000325/LER-1979-014-03, /03L-0 on 790519:operator Noted Containment Atmosphere Dilution Less than 4,350.Caused by Frozen Pressure Control Valve.Regulator on Pressure Control Valve Adjusted | /03L-0 on 790519:operator Noted Containment Atmosphere Dilution Less than 4,350.Caused by Frozen Pressure Control Valve.Regulator on Pressure Control Valve Adjusted | |
| 05000325/LER-1979-014, Forwards LER 79-014/03L-0 | Forwards LER 79-014/03L-0 | |
| 05000325/LER-1979-017, Forwards LER 79-017/03L-0 | Forwards LER 79-017/03L-0 | |
| 05000325/LER-1979-017-03, /03L-0 on 790417:while Auxiliary Operator Was Hanging Clearance on RHR Pumps 2A & 2C,control Operator Noticed Pumps Were Still Energized.Caused by Clearance Listing Unit 1 Instead of Unit 2.Clearance Was Corrected | /03L-0 on 790417:while Auxiliary Operator Was Hanging Clearance on RHR Pumps 2A & 2C,control Operator Noticed Pumps Were Still Energized.Caused by Clearance Listing Unit 1 Instead of Unit 2.Clearance Was Corrected | |
| 05000325/LER-1979-018, Forwards LER 79-018/03X-1 | Forwards LER 79-018/03X-1 | |
| 05000325/LER-1979-018-03, /03X-1 on 790414:main Steam Relief Valve 1B21-F013J Opened at 520 Psi During Plant Startup.Valve Immediately Reseated.Possible Cause May Be Excessive Pilot or Second Stage Seat Leakage | /03X-1 on 790414:main Steam Relief Valve 1B21-F013J Opened at 520 Psi During Plant Startup.Valve Immediately Reseated.Possible Cause May Be Excessive Pilot or Second Stage Seat Leakage | |
| 05000325/LER-1979-019-03, /03L-0 on 790520:operator Noted Recorder 1-CAC-TR-1258 for Printing Containment Pressure Was Not Working.Caused by Burned Gould Part TF255-C-C & Stuck Contacts in K-3 Relay.Relay Replaced | /03L-0 on 790520:operator Noted Recorder 1-CAC-TR-1258 for Printing Containment Pressure Was Not Working.Caused by Burned Gould Part TF255-C-C & Stuck Contacts in K-3 Relay.Relay Replaced | |
| 05000325/LER-1979-019, Forwards LER 79-019/03L-0 | Forwards LER 79-019/03L-0 | |
| 05000324/LER-1979-021-03, /03L-0 on 790702:steam Line Snubber,Pump Suction Snubber & Main Steam Relief Smubbers Found Inoperable. Caused by Seal Failure.Snubbers Rebuilt,Functionally Tested & Reinstalled | /03L-0 on 790702:steam Line Snubber,Pump Suction Snubber & Main Steam Relief Smubbers Found Inoperable. Caused by Seal Failure.Snubbers Rebuilt,Functionally Tested & Reinstalled | |
| 05000324/LER-1979-021, Forwards LER 79-021/03L-0 | Forwards LER 79-021/03L-0 | |
| 05000325/LER-1979-022-03, /03L-0 on 790723:linear Heat Generation Rate Found to Be 0.29 Kw/Ft Above Limit During Daily Core Parameter Check After Reaching 99% Power.Caused by Faulty Computer Reading.After Evaluation 1-3% Power Derate Imposed | /03L-0 on 790723:linear Heat Generation Rate Found to Be 0.29 Kw/Ft Above Limit During Daily Core Parameter Check After Reaching 99% Power.Caused by Faulty Computer Reading.After Evaluation 1-3% Power Derate Imposed | |
| 05000325/LER-1979-022, Forwards LER 79-022/03L-0 | Forwards LER 79-022/03L-0 | |
