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 Report dateSiteEvent description
05000282/LER-1978-018, Forwards LER 78-018/01T-0Prairie Island
05000282/LER-1978-020, Forwards LER 78-020/03L-0Prairie Island
05000282/LER-1979-009, Forwards LER 79-009/01T-0Prairie Island
05000282/LER-1979-022, Forwards LER 79-022/03L-0Prairie Island
05000282/LER-1981-011, Forwards LER 81-011/01T-0Prairie Island
05000282/LER-1981-026, Forwards LER 81-026/03L-0Prairie Island
05000282/LER-1981-031, Forwards Rept Providing Supplemental Info Re Degradation of Certain Spent Fuel Assemblies First Reported in LER 81-031 on 811230.All Region 4,5 & 6 Fuel Will Be Treated as Susceptible to Bulge Joint CrackingPrairie Island
05000282/LER-1982-011, Forwards LER 82-011/03L-0Prairie Island
05000282/LER-1982-015, Forwards LER 82-015/01T-0Prairie Island
05000282/LER-1982-016, Forwards LER 82-016/03L-0Prairie Island
05000282/LER-1982-018, Forwards LER 82-018/03L-0Prairie Island
05000282/LER-1982-019, Forwards LER 82-019/03L-0Prairie Island
05000282/LER-1982-020, Forwards LER 82-020/03L-0Prairie Island
05000282/LER-1982-021, Forwards Revised LER 82-021/03X-1Prairie Island
05000282/LER-1982-022, Forwards LER 82-022/03L-0Prairie Island
05000282/LER-1983-003, Forwards LER 83-003/03L-0Prairie Island
05000282/LER-1983-005, Forwards LER 83-005/03L-0Prairie Island
05000282/LER-1983-030, Updated LER 83-030/03l-1:on 831104,diesel Cooling Water Pump 22 Control Room Annunciator Actuated When False Signal Received in Control Cablic & Pump Rendered Inoperable.Caused by Inadequate Installation InstructionsPrairie Island
05000282/LER-1985-005, Forwards LER 85-005-00Prairie Island
05000282/LER-1989-010, Forwards Updated LER 89-010 Re Reactor Trip Resulting from Loss of One Reactor Coolant Pump Due to Personnel Error. Update Repts Change to Corrective Action PlansPrairie Island
05000282/LER-1990-008Prairie Island
05000282/LER-1990-010Prairie Island
05000282/LER-1991-005Prairie Island
05000282/LER-1992-012, Forwards LER 92-012-01 Re auto-start of DG D1 Due to Failure to Use Operating Procedure.Encl Corrects Original LER to Add Word Not to Third Sentence of Cause of EventPrairie Island
05000282/LER-1993-002, Forwards LER 93-002-00.Administrative Procedures Will Include Specific Instructions to Establish Fire Watches When Fire Door Between CR & Records Room or Between CR & Operator Study Area,Blocked OpenPrairie Island
05000282/LER-1993-010Prairie Island
05000282/LER-1993-012Prairie Island
05000282/LER-1995-003, Forwards LER 95-003 Re Discovery That Containment Hydrogen Monitors Not Being Correctly Calibr.Procedures Will Be Revised to Provide for Proper Handling of Temp Compensation CoefficientsPrairie Island
05000282/LER-1995-011, Forwards LER 95-011 & Lists Four Commitments Re Violation Concerning Surveillance of Cooling Water SysPrairie Island
05000282/LER-1996-006, Forwards LER 96-006-00 Re Cooling Water Surveillance Tests Missed as Results of Rescheduling Error.Licensee Made New NRC CommitmentPrairie Island
05000282/LER-1997-005, Forwards LER 97-005-00 Which Contained One New Commitment in Italicized Statement in Corrective Action SectionPrairie Island
05000282/LER-1997-011, Forwards LER 97-011-00 Re Failure to Test Low Pressure auto- Start Function of 121 Motor Driven Cooling Water Pump & Inadequate Separation Between Trains a & B Low Pressure auto-start Switches.Two New Commitments MadePrairie Island
05000282/LER-1997-013, Forwards LER 97-013-00 Re Inoperability of AFW & Entry Into Tech Spec 3.0.C.Util Made One New NRC Commitment Indicated as Corrective Actions Section Statements in Bold Italics. Event Reported Via Emergency Notification Sys on 9Prairie Island
05000282/LER-1997-016, Forwards LER 97-016-00 Re Rc Pump Lube Oil Lift Pump Oil Leak Collection Sys Design That Was Not in Compliance w/10CFR50,App R Section Iii.O.One New NRC Commitment Was Indicated in CAs Section Statement of LERPrairie Island
05000282/LER-1997-017, Forwards LER 97-017-00 Re Separation of Pressurizer Level Indication Channels Not in Compliance w/10CFR50,App R, Section III.G.2.Util Made One New NRC Commitment Indicated as Corrective Actions Section Statement in Bold ItalicsPrairie Island
05000282/LER-1998-001, Forwards LER 98-001-01 Re Leakage Through Redundant CR Steam Exclusion Dampers Found to Exceed Value Assumed in HELB Analysis.Licensee Has Modified Three NRC Commitments Made in Original Ler,As Noted by Corrective Actions in ItPrairie Island
05000282/LER-1998-002, Forwards Proprietary Rept, Metallurgical Investigation & Root Cause Assessment of Part Length CRDM Housing Motor Tube Cracking at PINGP Unit 2, in Response to RAI Dtd 980218. Suppl Rept for LER 98-02 Will Also Be Delayed.Rept WPrairie Island
05000282/LER-1998-003, Forwards LER 98-003-00 Re Routing of Containment Dome Fan Coil Unit Exhaust Damper Control Circuit Wiring Contrary to Configuration Described in Usar.Event Reported Via Emergency Notification Sys in Accordance w/10CFR50.72 on 9Prairie Island
05000282/LER-1998-004, Forwards LER 98-004-00,re ESF Equipment in Alternate Train Inoperable During DG Monthly Surveillance RunPrairie Island
05000282/LER-1998-005, Forwards LER 98-005-01,re Inoperability of Actuation Logic for MSIV in Certain Flooding Conditions from Feedwater Line Break.Commitments Made within Ltr,EnclPrairie Island
05000282/LER-1998-007, Forwards LER 98-007-01,re Diesel Generator Logic Testing. Commitment Made within Ltr Noted in Corrective Actions SectionPrairie Island
05000282/LER-1998-009, Forwards LER 98-009-00 Re Rc Vent Sys Testing.New Commitments Made by Util Are Indicated in Corrective Actions Section Statement in Bold ItalicsPrairie Island
05000282/LER-1998-010, Forwards LER 98-010-01 Re Discovery That 32 App R Related MOVs Are Susceptible to Physical Damage by Fire Induced Hot Shorts.Rept Provides Addl Details on Current Plans for Completing C/As Committed to in Original LERPrairie Island
05000282/LER-1998-011, Forwards LER 98-011-00 Re Improper Acceptance Criteria in Surveillance Procedure.Util Has Made One New NRC Commitment as Indicated in Corrective Action Section Statement in Bold ItalicsPrairie Island
05000282/LER-1998-012, Forwards LER 98-012-02,re Fire Areas 58/73 App R Safe Shutdown Analysis Issues.Rept Has Been Changed to Delete Inappropriate Characterization of Aspect of Event as Violation of 10CFR50,App RPrairie Island
05000282/LER-1998-013, Forwards LER 98-013-00 Re Discovery of Scaffold Installation Interfering with Operability of Steam Exclusion Check Damper.Util Has Made Two New Commitments as Indicated in Bold Italics in Corrective Actions SectionPrairie Island
05000282/LER-1998-014, Forwards LER 98-014-01,re Fire Area 32 App R Safe Shutdown Analysis Issues.Detailed Safety Significance Evaluation for Event Included in Attachment 2.Event Reported Via ENS IAW 10CFR50.72 on 980827Prairie Island
05000282/LER-1998-015, Forwards LER 98-015-01,re Containment to RHR MOVs App R Safe Shutdown Analysis Issues.Attachment 2 Contains Detailed Safety Significance Evaluation for NRC Info.Event Reported Via ENS IAW 10CFR50.72 on 980827Prairie Island
05000282/LER-1998-017, Forwards LER 98-017-00,re Failure to Test SR Hi Flux Trip Functions During non-refuelings Outages.Commitments Made by Util Are Indicated in Corrective Actions Section of LERPrairie Island
05000282/LER-1998-018, Forwards LER 98-018-00,discovered That Surveillance Testing of Boric Acid Storage Tank Level Instrumentation Places Plant in Condition Where Single Failure Could Cause Inability to Inject Concentrated Boric AcidPrairie Island