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| 05000336/LER-1978-014, Forwards LER 78-014/03L-0 | Forwards LER 78-014/03L-0 | |
| 05000336/LER-1978-014-03, /03L-0 on 780617:while Performing Monthly Control Element Assembly Surveillance Testing,Assembly 2 Dropped to Zero Steps from 178 Steps.No Component Failures Causing Control Element Assembly to Drop | /03L-0 on 780617:while Performing Monthly Control Element Assembly Surveillance Testing,Assembly 2 Dropped to Zero Steps from 178 Steps.No Component Failures Causing Control Element Assembly to Drop | |
| 05000245/LER-1978-018-03, /03L-0 on 780905:during Surveillance on Vessel Level Instru,It Was Found That 1 of the 4 Reactor low-low Water Level Switches Was Nonfunctional,Due to Mech Hangup Caused by Dry Lubrication | /03L-0 on 780905:during Surveillance on Vessel Level Instru,It Was Found That 1 of the 4 Reactor low-low Water Level Switches Was Nonfunctional,Due to Mech Hangup Caused by Dry Lubrication | |
| 05000245/LER-1978-018, Forwards LER 78-018/03L-0 | Forwards LER 78-018/03L-0 | |
| 05000336/LER-1978-019-03, /03X-2 on 780803:while Operating 13U Diesel for Surveillance,Leaking Injector Pump Observed.Caused by Elemental Lead Inclusions,Resulting in Stress Risers at Surface of Valve Cages | /03X-2 on 780803:while Operating 13U Diesel for Surveillance,Leaking Injector Pump Observed.Caused by Elemental Lead Inclusions,Resulting in Stress Risers at Surface of Valve Cages | |
| 05000336/LER-1978-019, Forwards LER 78-019/03X-2 | Forwards LER 78-019/03X-2 | |
| 05000245/LER-1978-021-03, /03L-0:on 780914,gas Turbine Tripped While Output Voltage Being Adjusted.Caused by Faulty Gas Generator Speed Switch 3A in Electronic Controls | /03L-0:on 780914,gas Turbine Tripped While Output Voltage Being Adjusted.Caused by Faulty Gas Generator Speed Switch 3A in Electronic Controls | |
| 05000336/LER-1978-021-03, /03L-0:on 780827,during Steady State Operation, Plant Computer Experienced Malfunction W/Spare Annunciator Point & Was Taken Out of Svc.Caused by Improper Installation of Spare Photodarlington Optical Isolator ILCA2-55 | /03L-0:on 780827,during Steady State Operation, Plant Computer Experienced Malfunction W/Spare Annunciator Point & Was Taken Out of Svc.Caused by Improper Installation of Spare Photodarlington Optical Isolator ILCA2-55 | |
| 05000245/LER-1978-021, Forwards LER 78-021/03L-0 | Forwards LER 78-021/03L-0 | |
| 05000336/LER-1978-022-03, /03L-0 on 780906:Loss of Methyl Iodide Removal Efficiency for a Ebfs Train. Cause Unknown | /03L-0 on 780906:Loss of Methyl Iodide Removal Efficiency for a Ebfs Train. Cause Unknown | |
| 05000336/LER-1978-022, Forwards LER 78-022/03l-0 | Forwards LER 78-022/03l-0 | |
| 05000336/LER-1978-023-03, /03L-0 on 780912:during Routine steady-state Operation,Spent Fuel Storage Ventilation Gaseous Radiation Monitor Failed Low.Caused by Shorted Local Alarm Horn Which Blew Power Supply Fuse.Horn Disconnected & Fuse Replaced | /03L-0 on 780912:during Routine steady-state Operation,Spent Fuel Storage Ventilation Gaseous Radiation Monitor Failed Low.Caused by Shorted Local Alarm Horn Which Blew Power Supply Fuse.Horn Disconnected & Fuse Replaced | |
| 05000336/LER-1978-023, Forwards LER 78-023/03L-0 | Forwards LER 78-023/03L-0 | |
| 05000245/LER-1978-023, Forwards LER 78-023/03L-0 | Forwards LER 78-023/03L-0 | |
| 05000336/LER-1978-024-03, /03L-0 on 781004:during Surveillance Testing, Setpoint for Reactor Protec Sys Reactor Coolant Low Flow Trip on Channel B Was Out of Spec.Setpoint Was Readjusted. Rev Will Req Low Flow Trip Unit Setpoint Be Reset | /03L-0 on 781004:during Surveillance Testing, Setpoint for Reactor Protec Sys Reactor Coolant Low Flow Trip on Channel B Was Out of Spec.Setpoint Was Readjusted. Rev Will Req Low Flow Trip Unit Setpoint Be Reset | |
| 05000336/LER-1978-024, Forwards LER 78-024/03L-0 | Forwards LER 78-024/03L-0 | |
| 05000336/LER-1978-025-03, /03L-0 on 781007:daily Tech Spec 4.3.1.1.1.,Table 4.3-1,items 2.a & 2.b,Nuc Pwr Surveillance & Delta-T Pwr Channel Calibr Not Performed Due to Personnel Error. Supervisors Told to Perform Req Surveillance | /03L-0 on 781007:daily Tech Spec 4.3.1.1.1.,Table 4.3-1,items 2.a & 2.b,Nuc Pwr Surveillance & Delta-T Pwr Channel Calibr Not Performed Due to Personnel Error. Supervisors Told to Perform Req Surveillance | |
| 05000336/LER-1978-025, Forwards LER 78-025/03L-0 | Forwards LER 78-025/03L-0 | |
| 05000336/LER-1978-026, Forwards LER 78-026/03L-0 | Forwards LER 78-026/03L-0 | |
| 05000336/LER-1978-026-03, /03L-0 on 781025:Analysis of Instru Installations Revealed That Two Transmitters Assoc W/Channel a Steam Generator Low Water Lever Were non-seismically Mounted. Channel a SG Was Bypassed.Seismic Brackets Will Be Used | /03L-0 on 781025:Analysis of Instru Installations Revealed That Two Transmitters Assoc W/Channel a Steam Generator Low Water Lever Were non-seismically Mounted. Channel a SG Was Bypassed.Seismic Brackets Will Be Used | |
| 05000336/LER-1978-027-03, /03L-0 on 781024:plant Computer Malfunction Caused CEA Pulse Counting Position to Be in Oper.Cause of Computer Failure Could Not Be Traced | /03L-0 on 781024:plant Computer Malfunction Caused CEA Pulse Counting Position to Be in Oper.Cause of Computer Failure Could Not Be Traced | |
| 05000336/LER-1978-027, Forwards LER 78-27/03L-0 | Forwards LER 78-27/03L-0 | |
| 05000336/LER-1978-028-03, /03L-0 on 781115:spent Fuel Pool(Sfp)Ventilation Particulate & Gaseous Setpoints Exceeded Tech Specs Setpoints of Table 3.3-6,items 2.c & 2.d.Caused by Monitor Recalibr W/O Taking Into Account Tech Spec Limit | /03L-0 on 781115:spent Fuel Pool(Sfp)Ventilation Particulate & Gaseous Setpoints Exceeded Tech Specs Setpoints of Table 3.3-6,items 2.c & 2.d.Caused by Monitor Recalibr W/O Taking Into Account Tech Spec Limit | |
| 05000336/LER-1978-028, Forwards LER 78-028/03L-0 | Forwards LER 78-028/03L-0 | |
| 05000336/LER-1978-029-03, /03L-0 on 781025:during Oper,Surveillance Test on Channel a Reactor Protec Sys Core Protec Calculator Reveated Sys Ground Traced to Signal for Pressurizer Pressure W/In Containment Boundary.Source Not Known at This Time | /03L-0 on 781025:during Oper,Surveillance Test on Channel a Reactor Protec Sys Core Protec Calculator Reveated Sys Ground Traced to Signal for Pressurizer Pressure W/In Containment Boundary.Source Not Known at This Time | |
| 05000336/LER-1978-029, Forwards LER 78-029/03L-0 | Forwards LER 78-029/03L-0 | |
| 05000336/LER-1978-030, Forwards LER 78-030/03L-0 | Forwards LER 78-030/03L-0 | |
| 05000245/LER-1978-030-03, /03L-0 on 781215:suppression Chamber Oxygen Concentration Was Too High Due to a Slow Nitrogen Purge Rate.Personnel Were Reminded to Monitor Parameters | /03L-0 on 781215:suppression Chamber Oxygen Concentration Was Too High Due to a Slow Nitrogen Purge Rate.Personnel Were Reminded to Monitor Parameters | |
| 05000245/LER-1978-030, Forwards LER 78-030/03L-0 | Forwards LER 78-030/03L-0 | |
| 05000336/LER-1978-030-03, /03L-0:on 781106 CEA 63 in Regulating Group 3 Reed Switch Position Indicator Channel Inoperable.Caused by Intermittent Open in the Reed Switch Assembly Power Supply Lead Which Produced Erratic Indication | /03L-0:on 781106 CEA 63 in Regulating Group 3 Reed Switch Position Indicator Channel Inoperable.Caused by Intermittent Open in the Reed Switch Assembly Power Supply Lead Which Produced Erratic Indication | |
| 05000245/LER-1978-031-03, /03L-0 on 781218:during Nuclear Review Board Audit a Surveillance Requirement (Reduced High Flux Prior to Startup) Was Found Unaccomplished Since Its Introduction. Caused by Procedural Error | /03L-0 on 781218:during Nuclear Review Board Audit a Surveillance Requirement (Reduced High Flux Prior to Startup) Was Found Unaccomplished Since Its Introduction. Caused by Procedural Error | |
| 05000245/LER-1978-031, Forwards LER 78-031/03L-0 | Forwards LER 78-031/03L-0 | |
| 05000336/LER-1978-031, Forwards LER 78-031/03L-0 | Forwards LER 78-031/03L-0 | |
| 05000336/LER-1978-031-03, /03L-0:on 781107 C Reactor Bldg Closed Cooling Water Temp Was Found Low Due to Failed Svc Water Temp Control Valve Shear Pin Connecting Actuator to Valve. Caused by Sheared Tension Pin | /03L-0:on 781107 C Reactor Bldg Closed Cooling Water Temp Was Found Low Due to Failed Svc Water Temp Control Valve Shear Pin Connecting Actuator to Valve. Caused by Sheared Tension Pin | |
| 05000245/LER-1978-032-03, /03L-0 on 781227:diesel Fire Pump Fuel Oil Sample Surveillance Inadvertently Overlooked During Routine Survey of Completed Surveillances.Not on Surveillance Schedule. Subsequently Added to Schedule | /03L-0 on 781227:diesel Fire Pump Fuel Oil Sample Surveillance Inadvertently Overlooked During Routine Survey of Completed Surveillances.Not on Surveillance Schedule. Subsequently Added to Schedule | |
| 05000245/LER-1978-032, Forwards LER 78-032/03L-0 | Forwards LER 78-032/03L-0 | |
| 05000336/LER-1978-032, Forwards LER 78-032/03L-0 | Forwards LER 78-032/03L-0 | |
| 05000336/LER-1978-032-03, /03L-0 on 781130:Channel B Reactor Protect Sys Core Protection Calculator Positive 18 Volt Logic Power Supply Failed.Caused by Normal Aging of a Capacitor in the Auxiliary Rectifier Circuit | /03L-0 on 781130:Channel B Reactor Protect Sys Core Protection Calculator Positive 18 Volt Logic Power Supply Failed.Caused by Normal Aging of a Capacitor in the Auxiliary Rectifier Circuit | |
| 05000336/LER-1978-033-03, /03L-0 on 781205:while Operating 12U Diesel for Surveillance,Low Cooling Water Flow Alarm Received.Caused by Shells in the Heat Exhanger | /03L-0 on 781205:while Operating 12U Diesel for Surveillance,Low Cooling Water Flow Alarm Received.Caused by Shells in the Heat Exhanger | |
| 05000336/LER-1978-033, Forwards LER 78-033/03L-0 | Forwards LER 78-033/03L-0 | |
| 05000336/LER-1978-034, Forwards LER 78-034/03L-0 | Forwards LER 78-034/03L-0 | |
| 05000336/LER-1978-034-03, /03L-0 on 781227:during Surveillance,Svc Water Isolation Valve 2-SW-3.2A Failed to Close.Caused by Actuating Air Flow Being Blocked | /03L-0 on 781227:during Surveillance,Svc Water Isolation Valve 2-SW-3.2A Failed to Close.Caused by Actuating Air Flow Being Blocked | |