| | | Reporting criterion |
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| 05000295/LER-1980-001, Forwards LER 80-001/03L-0 | Forwards LER 80-001/03L-0 | |
| 05000295/LER-1980-001-03, /03L-0:on 800103,while in Cold Shutdown,Spent Fuel Bldg Area Monitor ORE-0005 Failed full-scale High.Failure Due to Normal End of Life.Tube Replaced & Monitor Functionally Tested & Returned to Svc | /03L-0:on 800103,while in Cold Shutdown,Spent Fuel Bldg Area Monitor ORE-0005 Failed full-scale High.Failure Due to Normal End of Life.Tube Replaced & Monitor Functionally Tested & Returned to Svc | |
| 05000304/LER-1980-001-03, /03L-0:on 800113,trip of Auxiliary Transformer 242 Caused Power Supplies for Radiation Monitor Blowers to de-energize.Caused by Loose Heat Shield Due to High Winds. Work Requests Written to Repair Heat Shields | /03L-0:on 800113,trip of Auxiliary Transformer 242 Caused Power Supplies for Radiation Monitor Blowers to de-energize.Caused by Loose Heat Shield Due to High Winds. Work Requests Written to Repair Heat Shields | |
| 05000304/LER-1980-001, Forwards LER 80-001/03L-0 | Forwards LER 80-001/03L-0 | |
| 05000295/LER-1980-002, Forwards Corrected LER 80-002/03L-0 | Forwards Corrected LER 80-002/03L-0 | |
| 05000304/LER-1980-002-03, During Steady State Operation,Pressure Transmitters 2PT-526 for Steam Generator 2B & 2PT-546 for Steam Generator 2C Failed High.Caused by Cold Drafts Freezing Instrument Root Lines | During Steady State Operation,Pressure Transmitters 2PT-526 for Steam Generator 2B & 2PT-546 for Steam Generator 2C Failed High.Caused by Cold Drafts Freezing Instrument Root Lines | |
| 05000304/LER-1980-002, Forwards Updated LER 80-002/03X-1 | Forwards Updated LER 80-002/03X-1 | |
| 05000295/LER-1980-002-03, While in Cold Shutdown, Fire Sump Pump Radiation Monitor ORT-PR25 Was Bypassed Resulting in Failure of Fire Sump Pumps.Caused by Sand Accumulation in Sump.Sparger Sys Installed | While in Cold Shutdown, Fire Sump Pump Radiation Monitor ORT-PR25 Was Bypassed Resulting in Failure of Fire Sump Pumps.Caused by Sand Accumulation in Sump.Sparger Sys Installed | |
| 05000304/LER-1980-003, Has Been Cancelled | Has Been Cancelled | |
| 05000295/LER-1980-003-01, Has Been Cancelled | Has Been Cancelled | |
| 05000304/LER-1980-003-03, /03L-0:on 800816,MSIV Low Pressure Annunciator Alarmed & Oil Pump Would Not Run.Caused by Failed Control Power Transformer.Transformer Replaced | /03L-0:on 800816,MSIV Low Pressure Annunciator Alarmed & Oil Pump Would Not Run.Caused by Failed Control Power Transformer.Transformer Replaced | |
| 05000295/LER-1980-003-03, /03L-0:on 800802,after Ob Lake Discharge Tank Release Was Started,Personnel Noted That Liquid Release Form Did Not Include Sample Taken After 2,000 Gallons of Wastewater Were Added.Caused by Poor Communications | /03L-0:on 800802,after Ob Lake Discharge Tank Release Was Started,Personnel Noted That Liquid Release Form Did Not Include Sample Taken After 2,000 Gallons of Wastewater Were Added.Caused by Poor Communications | |
| 05000295/LER-1980-003, Forwards LER 80-003/03L-0 | Forwards LER 80-003/03L-0 | |
| 05000295/LER-1980-004, Has Been Cancelled | Has Been Cancelled | |
| 05000304/LER-1980-004-03, /03L-0:on 800128,during Normal Operation,Maint Personnel Found Steam/Generator Level Transmitter 2LT-538 Had Shifted High by 3.9%.Caused by Transmitter Drift. Transmitter Recalibr | /03L-0:on 800128,during Normal Operation,Maint Personnel Found Steam/Generator Level Transmitter 2LT-538 Had Shifted High by 3.9%.Caused by Transmitter Drift. Transmitter Recalibr | |
| 05000304/LER-1980-004, Forwards LER 80-004/03L-0 | Forwards LER 80-004/03L-0 | |
| 05000295/LER-1980-004-03, /03L-0:on 800802,6000 Gallons of Oa Lake Discharge Tank Discharged Into Lake.Caused by Valve Being Left Open.To Prevent Recurrence Discharge Valves Have Been Caution Carded | /03L-0:on 800802,6000 Gallons of Oa Lake Discharge Tank Discharged Into Lake.Caused by Valve Being Left Open.To Prevent Recurrence Discharge Valves Have Been Caution Carded | |
| 05000295/LER-1980-005-03, /03L-0:on 800110,miscellaneous Vent Gas Rod Monitor ORT-PR18A Failed Low During Cold Shutdown.Caused by Dirty &/Or worn-down Contacts on Mother Board of Module. Contacts Cleaned & Connections Resoldered | /03L-0:on 800110,miscellaneous Vent Gas Rod Monitor ORT-PR18A Failed Low During Cold Shutdown.Caused by Dirty &/Or worn-down Contacts on Mother Board of Module. Contacts Cleaned & Connections Resoldered | |
| 05000295/LER-1980-005, Forwards LER 80-005/03L-0 | Forwards LER 80-005/03L-0 | |
| 05000304/LER-1980-005, Has Been Cancelled | Has Been Cancelled | |
| 05000304/LER-1980-005-03, /03L-0:on 800806,NIS Channel 41 Declared Inoperable Due to Large Incore/Excore Difference.Channel 43 Out of Svc for Maint.Plant Operated W/Min Redundancy Degree Violated.Cause Unknown.Channel 43 Returned & 41 Removed | /03L-0:on 800806,NIS Channel 41 Declared Inoperable Due to Large Incore/Excore Difference.Channel 43 Out of Svc for Maint.Plant Operated W/Min Redundancy Degree Violated.Cause Unknown.Channel 43 Returned & 41 Removed | |
| 05000295/LER-1980-006, Has Been Cancelled | Has Been Cancelled | |
| 05000304/LER-1980-006, Forwards LER 80-006/03L-0 | Forwards LER 80-006/03L-0 | |
| 05000304/LER-1980-006-03, /03L-0:on 800202,during Normal Operation, Containment Vent Particulate Rad Monitor 2 RE-0011 Would Not Respond to Check Source Nor Manual Bugging.Apparently Caused by Detector Tube & Hvps Natural End of Life | /03L-0:on 800202,during Normal Operation, Containment Vent Particulate Rad Monitor 2 RE-0011 Would Not Respond to Check Source Nor Manual Bugging.Apparently Caused by Detector Tube & Hvps Natural End of Life | |
| 05000295/LER-1980-006-01, During Normal Operation, Surveillance of Auxiliary Bldg Ventilation Sys Revealed Inoperable Charcoal Filters.Caused by Improper Installation of Dampers Controlling Fuel Bldg Ventilation Paths | During Normal Operation, Surveillance of Auxiliary Bldg Ventilation Sys Revealed Inoperable Charcoal Filters.Caused by Improper Installation of Dampers Controlling Fuel Bldg Ventilation Paths | |
| 05000304/LER-1980-007-01, Has Been Cancelled | Has Been Cancelled | |
| 05000295/LER-1980-007, Has Been Cancelled | Has Been Cancelled | |
| 05000295/LER-1980-007-01, /01T-0:on 800815,during Normal Operation While Mods Were Performed on post-LOCA Hydrogen Recombiner Piping, Hydrogen Purge Fan IRV020 Was Made Inoperable.Caused by Failure of Const Dept to Notify Operating Dept of Mod | /01T-0:on 800815,during Normal Operation While Mods Were Performed on post-LOCA Hydrogen Recombiner Piping, Hydrogen Purge Fan IRV020 Was Made Inoperable.Caused by Failure of Const Dept to Notify Operating Dept of Mod | |
| 05000304/LER-1980-007, Forwards LER 80-007/01T-0 | Forwards LER 80-007/01T-0 | |
| 05000295/LER-1980-008, Forwards LER 80-008/01T-0 | Forwards LER 80-008/01T-0 | |
| 05000304/LER-1980-008-03, /03L-0:on 800206,w/unit at 95% Power,Instrument Loop for Steam Generator Pressure Indication Was Being Functionally Tested.Pressure Transmitter 2PT526 Was 2.5% Out of Tolerance.Caused by Previous Freezing | /03L-0:on 800206,w/unit at 95% Power,Instrument Loop for Steam Generator Pressure Indication Was Being Functionally Tested.Pressure Transmitter 2PT526 Was 2.5% Out of Tolerance.Caused by Previous Freezing | |
| 05000304/LER-1980-008, Forwards LER 80-008/03L-0 | Forwards LER 80-008/03L-0 | |
| 05000295/LER-1980-008-01, /01T-0:on 791204,in Constant Speed Drive,Unit 1 RCS Was Diluted W/Containment Integrity Violated.Dilution Controlled to Establish Shutdown Margin of Less than or Equal to 1%.Unit II Experienced Slow Dilution W/O Integrity | /01T-0:on 791204,in Constant Speed Drive,Unit 1 RCS Was Diluted W/Containment Integrity Violated.Dilution Controlled to Establish Shutdown Margin of Less than or Equal to 1%.Unit II Experienced Slow Dilution W/O Integrity | |
| 05000295/LER-1980-009, Forwards LER 80-009/03L-0 | Forwards LER 80-009/03L-0 | |
| 05000304/LER-1980-009, /03L-0 for Zion Re Conditions Leading to Operation in a Degraded Mode Permitted by a Limiting Condition for Operation or Plant Shutdown Required by a Limiting Condition for Operation Requires a 30 Day Written Report | /03L-0 for Zion Re Conditions Leading to Operation in a Degraded Mode Permitted by a Limiting Condition for Operation or Plant Shutdown Required by a Limiting Condition for Operation Requires a 30 Day Written Report | |
| 05000304/LER-1980-009-03, /03L-0:on 800202,steam Generator Level Transmitter 2LT-538 Had Shifted High by 2.25%.Caused by Transmitter Drift Due to Natural Component Aging.Transmitter Recalibr & Channel Returned to Svc | /03L-0:on 800202,steam Generator Level Transmitter 2LT-538 Had Shifted High by 2.25%.Caused by Transmitter Drift Due to Natural Component Aging.Transmitter Recalibr & Channel Returned to Svc | |
| 05000295/LER-1980-009-03, /03L-0:800212,w/Unit 1 in Constant Speed Drive & Unit 2 at 99% Power,Control Room Monitor Began High Alarming W/Insufficient Meter Reading to Trip Alarm.Caused by Defective Detector Tube & Faulty Connection on Meter Pin | /03L-0:800212,w/Unit 1 in Constant Speed Drive & Unit 2 at 99% Power,Control Room Monitor Began High Alarming W/Insufficient Meter Reading to Trip Alarm.Caused by Defective Detector Tube & Faulty Connection on Meter Pin | |
| 05000295/LER-1980-010-03, /03L-0:on 800219,during Normal Operation,Component Cooling Liquid Rad Monitor 1RE-0017 Read High Alarm Intermittently.Caused by Corroded Detector Contact Pins Due to Condensation.Pin Replaced & More Insulation Installed | /03L-0:on 800219,during Normal Operation,Component Cooling Liquid Rad Monitor 1RE-0017 Read High Alarm Intermittently.Caused by Corroded Detector Contact Pins Due to Condensation.Pin Replaced & More Insulation Installed | |
| 05000295/LER-1980-010, Forwards LER 80-010/03L-0 | Forwards LER 80-010/03L-0 | |
| 05000304/LER-1980-010, Forwards LER 80-010/03L-0 | Forwards LER 80-010/03L-0 | |
| 05000304/LER-1980-010-03, /03L-0:on 800202,during Surveillance of Containment Vent Particulate Rad Monitor 2 RE-0011,no Grab Sample Was Drawn for Second Shift.Caused by Misunderstanding Between Operating & Radiation Protection Personnel | /03L-0:on 800202,during Surveillance of Containment Vent Particulate Rad Monitor 2 RE-0011,no Grab Sample Was Drawn for Second Shift.Caused by Misunderstanding Between Operating & Radiation Protection Personnel | |
| 05000295/LER-1980-011, Forwards LER 80-011/03L-0 | Forwards LER 80-011/03L-0 | |
| 05000295/LER-1980-011-03, /03L-0:on 800224,while Performing Daily Radiation Monitor Operability Check,Pto App N,Unit 1 Passive Gas Failure Radiation monitor,1RTPR15 Failed Low & Could Not Be Reset.Caused by Defective Transistor ZN3638 | /03L-0:on 800224,while Performing Daily Radiation Monitor Operability Check,Pto App N,Unit 1 Passive Gas Failure Radiation monitor,1RTPR15 Failed Low & Could Not Be Reset.Caused by Defective Transistor ZN3638 | |
| 05000304/LER-1980-011, Forwards LER 80-011/03L-0 | Forwards LER 80-011/03L-0 | |
| 05000304/LER-1980-011-03, /03L-0:on 800224,while Operating at 95% Power, Monthly Surveillance Requiring Performance Testing of MSIV Was Performed Two Days Late.Caused by Incorrect Date Recorded on Schedule.Testing Performed | /03L-0:on 800224,while Operating at 95% Power, Monthly Surveillance Requiring Performance Testing of MSIV Was Performed Two Days Late.Caused by Incorrect Date Recorded on Schedule.Testing Performed | |
| 05000304/LER-1980-012-03, /03L-0:on 800224,while Increasing Power to 80%, Control Rod Bank D Rod Position Indicators Were Slightly Greater than 12 Steps Above Bank Demand Position.Caused by Instrument Drift.Recalibr Performed | /03L-0:on 800224,while Increasing Power to 80%, Control Rod Bank D Rod Position Indicators Were Slightly Greater than 12 Steps Above Bank Demand Position.Caused by Instrument Drift.Recalibr Performed | |
| 05000295/LER-1980-012-03, /03L-0:on 800312,during Normal Power w/1B Diesel Generator in Standby,Dc Control Breaker Tripped.Caused by Use of 5-amp Slow Blow Fuses in Annunciator Inverter.Slow Blow Fuses Replaced W/Fast Blowing Fuses | /03L-0:on 800312,during Normal Power w/1B Diesel Generator in Standby,Dc Control Breaker Tripped.Caused by Use of 5-amp Slow Blow Fuses in Annunciator Inverter.Slow Blow Fuses Replaced W/Fast Blowing Fuses | |
| 05000304/LER-1980-012, Forwards LER 80-012/03L-0 | Forwards LER 80-012/03L-0 | |
| 05000295/LER-1980-012, Forwards LER 80-012/03L-0 | Forwards LER 80-012/03L-0 | |
| 05000304/LER-1980-013-03, /03L-0:on 800227,during Normal Operation,Maint Personnel Found Steam Generator Pressure Comparator 2PC-536A-B Shifted High by 1.5%.Caused by Defective Unit. Defective Unit Replaced W/Spare Unit | /03L-0:on 800227,during Normal Operation,Maint Personnel Found Steam Generator Pressure Comparator 2PC-536A-B Shifted High by 1.5%.Caused by Defective Unit. Defective Unit Replaced W/Spare Unit | |
