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 Report dateSiteEvent description
05000000/LER-1986-009, Ro:On 860312,discovered That LER 2-86-04 & LER 86-009 Not Submitted to Nrc.Caused by Misplaced Repts.Repts Telecopied to Nrc.Procedure for Distribution of Repts RevisedPeach Bottom
Limerick
05000000
05000352/LER-1984-006, Forwards LER 84-006-00 Re Automatic Isolation of Main Control Room Ventilation Sys on 841113.Event Occurred Prior to Initial CriticalityLimerick
05000352/LER-1985-080, Motions to Reopen Record on Contentions V-3a & 3b & to Stay Operation of Unit 1.LER 85-80 Reported Potential Threat in Possible Failure of Cooling for Control Structure Affecting Safe Shutdown of PlantLimerick
05000352/LER-1985-082Limerick
05000352/LER-1985-102, Submits Info Re Effects of Valve Closure Failure & Leak Rate Info Reported in LER 85-102-00,in Response to Re Martin Request for Info Re Util 851218 Request for Temporary one-time Exemption from App J Schedular RequirementsLimerick
05000352/LER-1986-033, Forwards Rev 1 to LER 86-033 Re Isolation of RWCU Sys on High Differential Flow to Clarify Cause of Event & to Revise Corrective ActionsLimerick
05000352/LER-1987-023, Part 21 Rept Re Reactor Protective Sys Breaker Trip. Initially Reported in Util LER 87-023.Caused by Misoperation of 27N Undervoltage Relay When Control Undervoltage Reapplied After Having Been OffLimerick
05000352/LER-1987-066, Forwards LER 87-066-00,correcting Date of Rept from 870107 to 880107Limerick
05000352/LER-1988-031, Forwards LER 88-031-02.Safe Shutdown Analysis self- Assessment Program Presented in 890123 Meeting.Assessment Resulted in Determination of Overall Root Cause of Various Reportable Deviations & Schedule for Corrective ActionsLimerick
05000352/LER-1989-039, Forwards LER 89-039-00 Re 890601 Failure to Meet License Condition 2.C.(3).a Concerning Fire ProtectionLimerick
05000352/LER-1991-024, Forwards LER 91-024-01 Re Failure to Take Required TS Action When Loop a of ESW Sys Inoperable.Rev Revises Corrective Action CommitmentsLimerick
05000352/LER-1994-013, Forwards LER 94-013-00 Reporting Condition Prohibited by TSs Re RPS Level Switch Being Valved Out of Svc & Inoperable W/O Associated TS Action Being MetLimerick
05000352/LER-1995-002, Forwards LER 95-002 Re Automatic RPS Actuations on Both Units Resulted from Offsite Electrical Transmission Sys DisturbanceLimerick
05000352/LER-1995-003, Forwards LER 95-003 Re Unit 1 Maximum Power Level of 100% Was Exceeded by Approx 3.4%Limerick
05000352/LER-1995-007, Forwards LER 95-007,discussing Condition Prohibited by TS Due to Personnel ErrorLimerick
05000352/LER-1996-006, Forwards LER 96-006-01 Re Multiple Instances of Loss of Safety Function of Control Room Emergency Fresh Air Sys, Resulting in Operating Conditions Prohibited by Tech SpecsLimerick
05000352/LER-1996-018, Forwards LER 96-018-01 Which Discusses Event That Occurred on 960925 Re Inoperability of HPCI Sys Due to Loss of HPCI Turbine Speed Signal Caused by Loose Speed Sensor ConnectorLimerick
05000352/LER-1996-019, Forwards LER 96-019 Which Repts Operation Prohibited by TS in That Certain Previously Established Surveillance Testing for EDG Did Not Fully Verify Capability to Reject Specified Electrical Load of RHR Pump MotorLimerick
05000352/LER-1996-021, Forwards LER 96-021-01 Re Ability to Achieve Safe Shutdown in Event of Fire as Provided by Fire Protection ProgramLimerick
05000352/LER-1996-022, Forwards LER 96-022-01 Re Event Which Occurred on 961102 Re Amount of Fuel Oil Contained in D14 EDG Fuel Oil Storage Tank.Challenging Method for Determining Tank Oil Level Resulted in Operator Obtaining an Incorrect Level ReadiLimerick
05000352/LER-1997-003, Forwards Rev 1 to LER 97-003 Re Degraded Back Pressure Dampers Needed for Pipe Rupture Mitigation Resulted in Operation Being Outside Design Basis.Cause & Corrective Action DiscussedLimerick
05000352/LER-1997-005, Forwards LER 97-005-01 Which Documents Two Separate Unit 1 Primary Containment & Reactor Vessel Isolation Control Sys Actuations.Changes to Corrective Actions Indicated by Rev Bar in Left Hand MarginLimerick
05000352/LER-1997-006, Forwards LER 97-006-01 Re Discovery That Fire Protection Sys Deluge Valve May Not Have Functioned Per Design Since Issuance of License.Revised LER Provides Cause & Corrective Actions for Event.Changes Indicated by Rev BarsLimerick
05000352/LER-1997-007, Forwards LER 97-007-00 Reporting Unit 1 Primary Containment & Reactor Vessel Isolation Control Sys Actuation Resulting in RWCU Sys Isolation.Rwcu Sys Isolation Was Caused by Lifting of 'B' RWCU Filter Demineralizer Influent PsvLimerick
05000352/LER-1997-008, Forwards LER 97-008-00 Which Reports Event That Occurred on 841026 Re Failure to Perform Annual Maint Insps of Portable Fire Extinguishers IAW NFPA 10Limerick
05000352/LER-1997-009, Forwards LER 97-009-00 Which Documents Event That Occurred at Lgs,Units 1 & 2 on 971015Limerick
05000352/LER-1997-010, Forwards LER 97-010-00 Re Condition Outside Design Basis Involving Suppression Chamber Steam Bypass Leakage Path, Which Occurred on 841026 & 890812Limerick
05000352/LER-1997-011, Forwards LER 97-011-01,re Condition Prohibited by TS in That There Was Not Enough Assurance That Valve Would Continue to Meet TS Required Stroke Time When Restoring Valve to Operable Status.No New Commitments Made within LtrLimerick
05000352/LER-1997-012, Forwards LER 97-012-00 Re Event Which Resulted from Closure of Instrument Gas Transversing Incore Probe Purge PCIV, Per 10CFR50.73(a)(2)(iv)Limerick
05000352/LER-1997-013, Forwards LER 97-013-01,re Failure to Adequately Test Control Logic for Various Pcivs.No New Commitments Made within LtrLimerick
05000352/LER-1997-014, Forwards LER 97-014-00 Re Trip of RHRSW Sys Due to Spurious Trip Signal Generated by B Radiation MonitorLimerick
05000352/LER-1998-001, Forwards LER 98-001-00 Re Actuation Occurred in Response to Removal of Banana Jack During Rhrs Troubleshooting.Ler Submitted,Per Requirements of 10CFR50.73(a)(2)(v)Limerick
05000352/LER-1998-002, Forwards LER 98-002-00,re Primary Containment & Reactor Vessel Isolation Control Sys Actuation Which Occurred on 980206Limerick
05000352/LER-1998-003, Forwards LER 98-003-00,re Primary Containment & Rv Isolation Control Sys,Engineered Safety Feature on 980213Limerick
05000352/LER-1998-004, Forwards LER 98-004-00,re Missing Fire Dampers in Ventilation Ductwork Required to Comply W/Fire Protection Program.Ler Being Submitted Per 10CFR50.73(a)(2)(ii)(b) RequirementsLimerick
05000352/LER-1998-005, Forwards LER 98-005-00 Re Primary Containment & Reactor Vessel Isolation Control Sys Actuation on 980322Limerick
05000352/LER-1998-006, Forwards LER 98-006-00,re Condition Prohibited by TSs in That TS SR Was Not Completed Following Replacement of Agastat Relay.Rept Is Being Submitted Per 10CFR50.73(a)(2) (I)(B)Limerick
05000352/LER-1998-007, Forwards LER 98-007-00 Re 980422 Discovery of Three Inoperable Itt Barton Model 580A Differential Switches Which Caused Two or More Independent Trains of Single Safety Sys to Be InoperableLimerick
05000352/LER-1998-008, Forwards LER 98-008-01 Re Pressure Setpoint Drift of Thirteen Main Steam Sys SRVs Primarily Caused by Corrosion Induced Bonding within SRVsLimerick
05000352/LER-1998-009, Forwards LER 98-009-00 Re Condition Being Considered to Be Outside of Design Basis,Per 10CFR50.73(a)(2)(ii)(B)Limerick
05000352/LER-1998-010, Forwards LER 98-010-00 Re Failure to Perform Two Surveillance Tests Related to Rc Recirculation Sys Prior to TS Due Dates.Event Resulted in Condition Prohibited by Tech Specs for Failure to Meet Surveillance RequirementsLimerick
05000352/LER-1998-011, Forwards LER 98-011-00,reporting Condition Prohibited by TS Since Failure Investigation Determined That There Was Not Reasonable Assurance That 1B RHR Pump Would Be Able to Perform Intended Safety Function.No New Commitments MaLimerick
05000352/LER-1998-012, Forwards LER 98-012-00 Re Inoperability of HPCIS,single- Train Safety Sys,Due to Presence of Condensation in Steam Driven Turbine in Standby ConditionLimerick
05000352/LER-1998-013, Forwards LER 98-013-00 Re Failure to Meet Max Travel Distance Limitation & Guidance for Class a Extinguisher Replacement W/Hose Stations,For Portable Fire Extinguishers IAW NFPA 10-1975Limerick
05000352/LER-1998-014, Forwards LER 98-014-00,re Primary Containment & Rv Isolation Control Sys Actuations Which Resulted in RWCU Sys Isolations.Caused by Spurious High Differential Flow Condition While Placing Sys in SvcLimerick
05000352/LER-1998-015, Forwards LER 98-015-00 Re 950216 Determination That Calibr Error for Core Spray Internal Line Break Detection Instrumentation Resulted in Setpoints Being Outside Required TS LimitLimerick
05000352/LER-1998-016, Forwards LER 98-016-00 Re Manual Initiation of CR Ventilation Isolation & Associated CR Emergency Fresh Air Sys Initiation in Response to Small Drywell Chiller Freon Leak That Occurred on 980728Limerick
05000352/LER-1998-017, Forwards LER 98-017-00 Re Design Deficiency That Rendered Six Fire Protection Sys Hatchway Flow Control Valves InoperableLimerick
05000352/LER-1998-018, Forwards LER 98-018-00,reporting Condition Outside Design Basis of Plant & Violation of License Condition 2.C.(3) in That Local Emergency DG Control May Not Be Available to Support Safe Shutdown of Plant in Event of FireLimerick
05000352/LER-1999-003, Forwards LER 99-003-00,re Rps,Pcrvics Actuations.Ler Contains Special Rept Info for HPCI & Reactor Core Isolation Cooling Sys Injections Into RvLimerick
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