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| 05000272/LER-1979-001-03, /03L-0 on 790102:during Normal Operation,The No 12 Containment Fan Coil Unit Shifted to Slow Speed,But No Indication of Svc Water Flow Was Noted.Caused by Burned Out Coil in Solenoid SV-624,supplying Control Air for 12SW223 | /03L-0 on 790102:during Normal Operation,The No 12 Containment Fan Coil Unit Shifted to Slow Speed,But No Indication of Svc Water Flow Was Noted.Caused by Burned Out Coil in Solenoid SV-624,supplying Control Air for 12SW223 | |
| 05000272/LER-1979-001, Supplemental LER 79-001/03X-1:on 790102,during Normal Operations,Containment Fan Coil 12 Shifted to Slow Speed. Operator Noticed No Indication of Svc Waterflow.Caused by Burned Out Coil in Solenoid Valve SV-624.Coil Replaced | Supplemental LER 79-001/03X-1:on 790102,during Normal Operations,Containment Fan Coil 12 Shifted to Slow Speed. Operator Noticed No Indication of Svc Waterflow.Caused by Burned Out Coil in Solenoid Valve SV-624.Coil Replaced | |
| 05000272/LER-1979-002-03, /03L-0 on 790103:excessive Leak Rate in W1 100 Air Lock Noted.Doors Were Reworked & Airlock Returned to Operation.Seals Failed Due to Split at Vulcanized Seam. Door Seals Were Replaced | /03L-0 on 790103:excessive Leak Rate in W1 100 Air Lock Noted.Doors Were Reworked & Airlock Returned to Operation.Seals Failed Due to Split at Vulcanized Seam. Door Seals Were Replaced | |
| 05000272/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | |
| 05000272/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | |
| 05000272/LER-1979-003-03, /03L-0 on 790103:containment Pressure Exceeded Tech Spec Max.Caused by Isolation of Pressure/Vacuum Relief System for Rework of 1CV6 | /03L-0 on 790103:containment Pressure Exceeded Tech Spec Max.Caused by Isolation of Pressure/Vacuum Relief System for Rework of 1CV6 | |
| 05000272/LER-1979-004, Forwards Updated LER 79-004/03X-1 | Forwards Updated LER 79-004/03X-1 | |
| 05000272/LER-1979-004-03, /03L-0 on 790103:Loop 4 Channel IV Was 100 Psi Too High.Caused by Steam Pressure Transmitter Being Frozen by an Outside Air Damper Directing Cold Air Onto the Sensing Lines | /03L-0 on 790103:Loop 4 Channel IV Was 100 Psi Too High.Caused by Steam Pressure Transmitter Being Frozen by an Outside Air Damper Directing Cold Air Onto the Sensing Lines | |
| 05000272/LER-1979-005-03, /03L-0 on 790104:during Normal Operations,Position Indication for Rod 2D5 Began Oscillating.Rod Position within 12 Steps of Bank D.Caused Traced to Rod Indication Coil Stack on Reactor.Repairs Planned for Next Reactor Outage | /03L-0 on 790104:during Normal Operations,Position Indication for Rod 2D5 Began Oscillating.Rod Position within 12 Steps of Bank D.Caused Traced to Rod Indication Coil Stack on Reactor.Repairs Planned for Next Reactor Outage | |
| 05000272/LER-1979-005, Supplemental LER 79-05L/03X-1:on 790104,during Normal Operation,Individual Rod Position Indication for Rod 2D5 Began Oscillating.Cause Could Not Be Identified.Connectors Checked & RPI Coil Stack Replaced | Supplemental LER 79-05L/03X-1:on 790104,during Normal Operation,Individual Rod Position Indication for Rod 2D5 Began Oscillating.Cause Could Not Be Identified.Connectors Checked & RPI Coil Stack Replaced | |
| 05000272/LER-1979-006-03, /03L-0 on 790102:inservice Insp Data Packages Not Being Reviewed.Cause Was Lack of Administrative Control to Correlate Responsibilities of Two Station Depts.Dept Review Procedures Have Been Rewritten | /03L-0 on 790102:inservice Insp Data Packages Not Being Reviewed.Cause Was Lack of Administrative Control to Correlate Responsibilities of Two Station Depts.Dept Review Procedures Have Been Rewritten | |
| 05000272/LER-1979-006, Forwards LER 79-006/03L-0 | Forwards LER 79-006/03L-0 | |
| 05000272/LER-1979-007, Forwards LER 79-007/03L-0 | Forwards LER 79-007/03L-0 | |
| 05000272/LER-1979-007-03, /03L-0 on 790126:while Performing Channel Check of Pressurizer Level,Channel II Found 5% Lower than Others. Caused by Instrument Drift Resulting in Zero Shift in Transmitter Output | /03L-0 on 790126:while Performing Channel Check of Pressurizer Level,Channel II Found 5% Lower than Others. Caused by Instrument Drift Resulting in Zero Shift in Transmitter Output | |
| 05000272/LER-1979-008-03, /03L-0 on 790111:during Normal Operation While Refilling Boric Acid Storage Tanks,Operator Added Improper Batch of Acid to Tanks & Pumped Concentrates Tank to Storage Tanks.Caused by Personnel Error | /03L-0 on 790111:during Normal Operation While Refilling Boric Acid Storage Tanks,Operator Added Improper Batch of Acid to Tanks & Pumped Concentrates Tank to Storage Tanks.Caused by Personnel Error | |
| 05000272/LER-1979-008, Forwards LER 79-008/03L-0 | Forwards LER 79-008/03L-0 | |
| 05000272/LER-1979-009-03, /03L-0 on 790112:No 13 Auxiliary Bldg Exhaust Fan Removed from Svc to Replace Motor.Caused by Worn Keyway in Drive Motor Shaft | /03L-0 on 790112:No 13 Auxiliary Bldg Exhaust Fan Removed from Svc to Replace Motor.Caused by Worn Keyway in Drive Motor Shaft | |
| 05000272/LER-1979-009, Forwards LER 79-009/03L-0 | Forwards LER 79-009/03L-0 | |
| 05000272/LER-1979-011, Forwards LER 79-011/01X-2 | Forwards LER 79-011/01X-2 | |
| 05000272/LER-1979-011-01, /01X-2 on 790116:RMS Channel Which Had Alarmed & Cleared Had Been Reset at Control Console But Not at RMS Panel.Caused by Procedure Inadequacy.Procedure Changed Initiated to Clarify Functions | /01X-2 on 790116:RMS Channel Which Had Alarmed & Cleared Had Been Reset at Control Console But Not at RMS Panel.Caused by Procedure Inadequacy.Procedure Changed Initiated to Clarify Functions | |
| 05000272/LER-1979-012, Forwards LER 79-012/03L-0 | Forwards LER 79-012/03L-0 | |
| 05000272/LER-1979-012-03, /03L-0 on 790115:No 11 Steam Generator Steam Flow Channel II Failed Low.No Cause Found.Operator Took Manual Control & re-established Steam Generator Level.Channel Indication Normalized within 10 Minutes | /03L-0 on 790115:No 11 Steam Generator Steam Flow Channel II Failed Low.No Cause Found.Operator Took Manual Control & re-established Steam Generator Level.Channel Indication Normalized within 10 Minutes | |
| 05000272/LER-1979-013-04, /04L on 790102:non-radioactive Waste Effluent Total Suspended Solids Exceeded Tech Specs.Caused by Abnormally High Number of Demineralized Regenerations Supporting Initial Flushes for Startup Preparation | /04L on 790102:non-radioactive Waste Effluent Total Suspended Solids Exceeded Tech Specs.Caused by Abnormally High Number of Demineralized Regenerations Supporting Initial Flushes for Startup Preparation | |
| 05000272/LER-1979-013, Supplemental LER 79-013/04X-1:on 790102,during Preparation of Annual Nonradioactive Environ Operating Rept,Average 1978 Suspended Solids Concentrate in Discharge Exceeded Limit. Caused by Abnormally High Demineralizer Regenerat | Supplemental LER 79-013/04X-1:on 790102,during Preparation of Annual Nonradioactive Environ Operating Rept,Average 1978 Suspended Solids Concentrate in Discharge Exceeded Limit. Caused by Abnormally High Demineralizer Regenerations | |
| 05000272/LER-1979-014-03, /03L-0 on 790220:during Normal Operation,Radiation Monitoring Sys Channel 1R 12B Alarms Found Not Operating. Channel Later Returned to Svc & Operated Properly.Caused by Unknown Factor | /03L-0 on 790220:during Normal Operation,Radiation Monitoring Sys Channel 1R 12B Alarms Found Not Operating. Channel Later Returned to Svc & Operated Properly.Caused by Unknown Factor | |
| 05000272/LER-1979-014, Forwards LER 79-014/03L-0 | Forwards LER 79-014/03L-0 | |
| 05000272/LER-1979-015, Forwards LER 79-015/03L-0 | Forwards LER 79-015/03L-0 | |
| 05000272/LER-1979-015-03, /03L-0 on 790212:during Normal Operation,Noted Required Surveillance to Be Performed Every 78-h Had Not Been Done on 790210 When Scheduled.Caused by Personnel Error.Entry Made in Log Instructing Supervisor | /03L-0 on 790212:during Normal Operation,Noted Required Surveillance to Be Performed Every 78-h Had Not Been Done on 790210 When Scheduled.Caused by Personnel Error.Entry Made in Log Instructing Supervisor | |
| 05000272/LER-1979-016, Forwards LER 79-016/03L-0 | Forwards LER 79-016/03L-0 | |
| 05000272/LER-1979-016-03, /03L-0 on 790220:control Operator Observed Zero Svc Water Flow Through Unit.Caused by Burned Out Coil in Solenoid Valve.Coil Replaced | /03L-0 on 790220:control Operator Observed Zero Svc Water Flow Through Unit.Caused by Burned Out Coil in Solenoid Valve.Coil Replaced | |
| 05000272/LER-1979-017, Forwards LER 79-017/03L-0 | Forwards LER 79-017/03L-0 | |
| 05000272/LER-1979-017-03, /03L-0 on 790219:gross Activity Surveillance of Coolant Sys & Steam Generators Was Not Performed.Caused by Personnel Error in Not Returning Gas Bottles to Storage.New Bottle Storage Pad Will Be Built | /03L-0 on 790219:gross Activity Surveillance of Coolant Sys & Steam Generators Was Not Performed.Caused by Personnel Error in Not Returning Gas Bottles to Storage.New Bottle Storage Pad Will Be Built | |
| 05000272/LER-1979-018, Forwards LER 79-018/03L-0 | Forwards LER 79-018/03L-0 | |
| 05000272/LER-1979-018-03, /03L-0 on 790223:auxiliary Feedwater Pump Breaker Cubicle Was Hot.Caused by Burned Out Closing Spring Charging Motor.Motor & Breaker Replaced | /03L-0 on 790223:auxiliary Feedwater Pump Breaker Cubicle Was Hot.Caused by Burned Out Closing Spring Charging Motor.Motor & Breaker Replaced | |
| 05000272/LER-1979-020-03, /03L-0 on 790225:pressurizer Level Channel II Was Declared Inoperable.Caused by non-linearity of Strain Gauge in Level Sensor Transmitter.Strain Gauge Replaced Along W/ Zero & Span Potentiometers.Transmitter Recalibrated | /03L-0 on 790225:pressurizer Level Channel II Was Declared Inoperable.Caused by non-linearity of Strain Gauge in Level Sensor Transmitter.Strain Gauge Replaced Along W/ Zero & Span Potentiometers.Transmitter Recalibrated | |
| 05000272/LER-1979-021, Forwards LER 79-021/03L-0 | Forwards LER 79-021/03L-0 | |
| 05000272/LER-1979-021-03, /03L-0 on 790302:overhead Annuciators in Control Room Alarmed,Indicating Power Range Nuclear Instrumentation Channel Failure.Caused by Failure of N41 Channel High Voltage Power Supply.Failed Power Supply Replaced | /03L-0 on 790302:overhead Annuciators in Control Room Alarmed,Indicating Power Range Nuclear Instrumentation Channel Failure.Caused by Failure of N41 Channel High Voltage Power Supply.Failed Power Supply Replaced | |
| 05000272/LER-1979-022-03, /03L-0 on 790221:during Normal Operations,While Conducting Routine Insp,Nrc Inspector Found Missed Tech Spec Surveillance Reading.Caused by Personnel Error.Surveillance Posted on Plant Status Board | /03L-0 on 790221:during Normal Operations,While Conducting Routine Insp,Nrc Inspector Found Missed Tech Spec Surveillance Reading.Caused by Personnel Error.Surveillance Posted on Plant Status Board | |
| 05000272/LER-1979-022, Forwards LER 79-022/03L-0 | Forwards LER 79-022/03L-0 | |
| 05000272/LER-1979-024, Forwards LER 79-024/03L-0 | Forwards LER 79-024/03L-0 | |
| 05000272/LER-1979-024-03, /03L-0 on 790313:air Particulate Monitor Was Declared Inoperable.Caused by Failing Motor Bearings Which Led Filter Paper Drive to Slow & Activate Failed Filter Alarm.Motor Was Cleaned & Bearing Replaced | /03L-0 on 790313:air Particulate Monitor Was Declared Inoperable.Caused by Failing Motor Bearings Which Led Filter Paper Drive to Slow & Activate Failed Filter Alarm.Motor Was Cleaned & Bearing Replaced | |
| 05000272/LER-1979-025, Forwards LER 79-025/03L-0 | Forwards LER 79-025/03L-0 | |
| 05000272/LER-1979-025-03, /03L-0 on 790315:during Normal Operation on 790302,retest Not Performed After 790302 Maint on Chilled Water Pump 11.Caused by Personnel Error.Procedure Reviewed & Rewritten | /03L-0 on 790315:during Normal Operation on 790302,retest Not Performed After 790302 Maint on Chilled Water Pump 11.Caused by Personnel Error.Procedure Reviewed & Rewritten | |
| 05000272/LER-1979-026, Forwards LER 79-026/03L-0 | Forwards LER 79-026/03L-0 | |
| 05000272/LER-1979-026-03, /03L-0 on 790318:No 13 Reactor Coolant Loop Protection Channel III Inoperable.Caused by Faulty Channel Summator Module.Summator Was Replaced | /03L-0 on 790318:No 13 Reactor Coolant Loop Protection Channel III Inoperable.Caused by Faulty Channel Summator Module.Summator Was Replaced | |
| 05000272/LER-1979-027-01, /01X-1 on 790325:while Providing Backup Protection to Hope Creek,Facility Fresh Water Tanks Were Below Tech Spec Required Levels.Caused by Poor Communications Between Facilities.Water Level Restored | /01X-1 on 790325:while Providing Backup Protection to Hope Creek,Facility Fresh Water Tanks Were Below Tech Spec Required Levels.Caused by Poor Communications Between Facilities.Water Level Restored | |
| 05000272/LER-1979-027, Forwards LER 79-027/01X-1 | Forwards LER 79-027/01X-1 | |
| 05000272/LER-1979-028, Has Been Voided | Has Been Voided | |
| 05000272/LER-1979-029-03, /03L-0 on 790320:during Channel Functional Test High Voltage Was Found to Be Low.Caused by Breakdown of Diode in High Voltage Power Supply.Diode Was Replaced & Channel Functional Was Completed | /03L-0 on 790320:during Channel Functional Test High Voltage Was Found to Be Low.Caused by Breakdown of Diode in High Voltage Power Supply.Diode Was Replaced & Channel Functional Was Completed | |
| 05000272/LER-1979-029, Forwards LER 79-029/03L-0 | Forwards LER 79-029/03L-0 | |
