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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.
List of results
- 05000361/LER-1986-036, :on 860619,line Voltage Regulators Caused Vital Buses to Be Inoperable.Caused by Procedural Discrepancy. Revised Procedure SO23-II-11.184 +
- 05000029/LER-1986-008, :on 860619,main Coolant Pump 1 Flow Indication Abnormally Low.Caused by Tensile Stress on Valve Stem in Valve Open Position Due to Stress Corrosion.Replacement Stems Fabricated & Procedures Revised +
- 05000336/LER-1986-007-01, :on 860901,during Monthly Control Room Surveillance Check,Steam Generator 1 Level Indication on Remote Shutdown Panel Indicated Zero Percent.Caused by Failure of Amplifier Assembly +
- 05000368/LER-1986-018, :on 860720,discovered Blowdown Pipe Missing Required Pipe Whip Restraint.Caused by Inadequate Control of Deviations from Design Requirements During Original Const. Pipe Whip Restraint Installed +
- 05000368/LER-1986-017, :on 860604,discovered That Required Type C Testing of Containment Isolation Valves Not Performed Resulting in Noncompliance W/Tech Specs.Caused by Personnel Error.Actions Taken to Test Affected Valves +
- 05000368/LER-1986-015, :on 860801,review of Fire Barrier Penetration Log Identified 55 Penetrations Not Inspected within Tech Spec Required Interval.Caused by Inadequate Procedure & Personnel Error.Log & Test Procedures Revised +
- 05000368/LER-1986-020, :on 860712,discovered That Time Delay Function Associated W/Feeder Circuit Breaker from ESF Bus to Svc Water Pump Inoperable.Caused by Not Removing Jumper Wire. Jumper Wire Removed & Drawings Revised +
- 05000368/LER-1986-014, :on 860627,emergency Diesel Generator Failed. Caused by Engine Fuel Starvation Due to Severely Fouled Y- Strainer 2F-195B Screen Element.Mesh Screen Internals of Y-strainers Removed +
- 05000293/LER-1986-026, :on 861029,QA Audit Identified That Surveillances Required by Tech Spec Tables 4.2.D,Note 6 & 4.8-2 Not Procedurally Addressed.Caused by Lack of Verifications in Administrative Controls +
- 05000029/LER-1986-013, :on 861004,reactor Scrammed After Main Steam Line Trip Circuit Switch Inadvertently Placed in Trip Position.Caused by Personnel Error.Personnel Reinstructed Re Importance of Switch Positioning +
- 05000000/LER-1986-054, Forwards LER 86-054-00 Re Physical Security Event.Ler Withheld (Ref 10CFR73.21) +
- 05000000/LER-1986-045, Forwards LER 86-045-00 Re Physical Security Event.Rept Withheld (Ref 10CFR73.21) +
- 05000000/LER-1986-049, Forwards LER 86-049-00 Re Physical Security Event.Encl Withheld (Ref 10CFR73.21) +
- 05000000/LER-1986-031, Forwards LER 86-031-00 Re Physical Security Event.Ler Withheld (Ref 10CFR73.21) +
- 05000000/LER-1986-055, Forwards LER 86-055-00 Re Physical Security Event.Withheld (Ref 10CFR73.21) +
- 05000298/LER-1986-026, :on 861011,cracks Discovered in Fire Dome Area of 12 Cylinder Heads on Emergency Diesel Generator DG-2. Cause Attributed to Cylinder Head Design.New Cylinder Heads Received & All Cracked Heads Replaced +
- 05000280/LER-1986-006, :on 860124,specific Activity Sample of Reactor Coolant Showed Dose Equivalent I-131 Level of 1.22 Mci/Cc After Manual Reactor Trip from 42% Power.Caused by Fuel Element Defects in Core.Level Monitored Every 4 H +
- 05000368/LER-1986-019, :on 860618,during Inservice Insp & Testing 34 Snubbers Discovered to Be Inoperable.Caused by Problems, Including vibration-induced Wear,Dirt Intrusion,Excessive Lubrication & Excessive Heating +
- 05000000/LER-1986-006, :on 860220,control Room Ventilation Isolation Signal Manually Initiated Per Tech Spec 3.3.3.1 Due to Inoperability of Control Room Intake Radiation Monitor. Caused by Improper Placement Following Maint +
- 05000000/LER-1986-017, :on 860821,containment Smoke Detector Sys 1A-22 Declared Inoperable Due to Spurious Alarm Which Would Not Clear.Caused by Faulty Smoke Detector.Further Investigation & Repair Will Be Performed During Next Outage +
- 05000000/LER-1986-052-01, Partially Withheld LER 86-052-01:on 860926,security Data Mgt Sys Computer Terminals Became Inoperable (Ref 10CFR73.21). Caused by Overload of Alarms & Sys Instability.Sys Restored by Placing Sys Multiplexers Online +
- 05000000/LER-1986-020-07, :on 860505,both Automatic & Manual Safeguards Actuation Capability Defeated.Caused by Equipment Operator Removing Wrong Fuses.Discipliary Action Taken Against Individual & Procedure to Be Improved +
- 05000000/LER-1986-038-02, :on 861209,reactor Scram Occurred Due to Low Condenser Vacuum.Caused by Personnel Error.Discussions W/Operating Personnel Involved Will Be Held.Procedure Qgp 1-1 to Be Revised +
- 05000000/LER-1986-023-01, Partially Deleted LER 86-023-01:on 861023,unauthorized Access Into Vital Area Door Discovered.Caused by Card Reader Malfunction.Malfunctioning Card Reader Replaced.Cause Still Under Investigation +
- 05000000/LER-1986-022, Partially Deleted LER 86-022-00:on 861018,determined That Vital Area Door Card Reader Would Grant Unauthorized Access to Area.Caused by Technician Incorrectly Programming Card Reader.Card Reader Replaced & Tested +
- 05000000/LER-1986-021, Partially Deleted LER 86-021-00:on 860911,vital Area Doors Failed to Alarm When Tested During Surveillance.Caused by Failure to Report Door Transactions to Host Computer.Central Procesing Unit Board Replaced +
- 05000000/LER-1986-013, Partially Deleted LER 86-013-00:on 860414,vital Area Door W/O Alarm Capability Discovered.Caused by Personnel Error. Personnel Removed from Shift & Vital Area Checked for Unauthorized Personnel W/None Being Found +
- 05000000/LER-1986-007, Partially Deleted LER 86-007-00:on 860218,loss of Alarm Surveillance Occurred.Caused by Water Leaking Into Cable During Heavy Rain.Situation Will Be Evaluated for Addl Action +
- 05000000/LER-1986-012, Partially Deleted LER 86-012-00:on 860412,breach Discovered in Protected Area Barrier.Caused by Personnel Error. Personnel Counseled +
- 05000000/LER-1986-004, Partially Deleted LER 86-004-00:on 860204,loss of Dynamic Reporting of Alarm Surveillance Occurred.Caused by Malfunction.Computer Svcs Personnel Will Monitor Sys for Indicators as to Cause +
- 05000000/LER-1986-001, Partially Deleted LER 86-001-00:on 860105,loss of Dynamic Reporting of Vital Door Activity Occurred.Cause & Corrective Action Completely Deleted +
- 05000000/LER-1986-020, Partially Deleted LER 86-020-00:on 860812,security Sys Experienced Loss of Power.Caused Withheld.Numerous Failures Experienced Until Machine a Designated as Prime.Procedures to Reboot Computers Revised +
- 05000000/LER-1986-016, Partially Deleted LER 86-016-00:on 860501,vital Area Door Discovered W/O Alarm Capabilities.Caused by Access Control Security Officer Asleep at Post.Determination to Suspend or Discontinue Employment Being Made +
- 05000000/LER-1986-011, Partially Deleted LER 86-011-00:on 860410,vital Area Intrusion Alarm Failure Occurred.Cause of Event Deleted. Alarm & Door Tested Satisfactorily +
- 05000000/LER-1986-024, Partially Deleted LER 86-024-00:on 861113,attempted Introduction of Unauthorized Weapon Into Protected Area Discovered.Caused by Personnel Attempt to Enter Plant W/ Concealed Gun.Personnel Denied Facility Access +
- 05000000/LER-1986-014, Partially Deleted LER 86-014-00:on 860421,bomb Threat Received by Security Officer in Security Assembly Room. Cause Not Applicable.Actions Taken to Minimize Station Threat & Investigation Underway +
- 05000000/LER-1986-003, Partially Deleted LER 86-003-00:on 860125,loss of Dynamic Reporting of Vital Area Door Activity Occurred.Caused by Equipment Malfunction.Corrective Action Withheld +
- 05000000/LER-1986-002, Partially Deleted LER 86-002-00:on 860117,loss of Alarm Surveillance on Doors Occurred.Caused by Erroneously Listing Officer as Being Posted on Door 398.Processing of Rev to Physical Security Plan Initiated +
- 05000312/LER-1986-029-01, Forwards LER 86-029-01.Completion Date for Suppl to LER Delayed Until Aug 1987 Due to Expansion of Root Cause Investigation to Include All Previous Similar Events +
- 05000000/LER-1986-030, Partially Deleted LER 86-030-00:on 861211,unauthorized Opening Into Protected Area Discovered.Caused by Area Not Properly Identified as Area for Security Concern.Signs Posted +
- 05000458/LER-1986-047, :on 860731 & 0802,feeder Breaker Tripped Causing Automatic Start of Both Divs of Annulus Mixing, Standby Gas Treatment & Fuel Bldg Ventilation Sys.Caused by Defective Protective Relay.Relay Replaced +
- 05000000/LER-1986-018, Forwards LER 86-018-00 +
- 05000000/LER-1986-008, Forwards LER 86-008-00 +
- 05000000/LER-1986-008-01, :on 860414,not All Required Valves Listed in Valve Position Verification Surveillances.Caused by Difference of Opinion Re Valves.Discrepancies Corrected +
- 05000000/LER-1986-018-02, :on 860214,feedwater Isolation Due to hi-hi Level in Steam Generator a Occurred.Operating Procedures Revised to Include Caution Warning of Possible Feedwater Isolation When Opening MSIV +
- 05000000/LER-1986-008-02, :on 860917,equipment Hatch Discovered Open.Fire Watch Not Posted as Required by Tech Spec 3.7.11.a.Caused by Personnel Error.Roving Fire Watch Established & Personnel Counseled +
- 05000362/LER-1986-015-03, :on 861212,determined That Sufficient Info Existed to Believe Individual Extremity Exposure in Excess of Regulatory Limits Occurred in Oct 1986.Individual Restricted from Exposure.Related Info Re IEB-85-003 Encl +
- 05000282/LER-1986-006, :on 860908,diesel Generator D1 & Diesel Cooling Water Pump Declared Inoperable Simultaneously.Caused by Leakage Through Fuel Header Check Valve & Rupture of Brass Tubing,Respectively.Valve & Tubing Replaced +
- 05000458/LER-1986-068, :on 861223,RCIC High Steam Supply Flow Detection Transmitter Failed.Caused by Moisture Accumulating in Electronics Head.Transmitter Replaced & Sys Declared Operable on 861227 +
- 05000440/LER-1986-040, :on 860728,main Steam Line Leak Detection Differential Pressure Trip Units Read Downscale.Caused by Misunderstanding of Tech Spec Action Statement.Operators Trained +