Pages that link to "05000000/LER-1985-035, Forwards LER 85-035-00 Re Physical Security Event"

The following pages link to 05000000/LER-1985-035, Forwards LER 85-035-00 Re Physical Security Event:

Displayed 3 items.

• ML20244D340 (redirect page) ‎ (← links)
• 05000000/LER-1985-035 (redirect page) ‎ (← links)
  • ML20236U534 (redirect page) ‎ (← links)
  • 05000000/LER-1985-035, Partially Withheld LER 85-035-00:on 850531,moderate Loss of Physical Security Effectiveness Discovered.No Unauthorized or Undetected Access to Protected Area Occurred.Contractor Security Guard Dismissed & Training Session Plann (redirect page) ‎ (← links)
    • 05000482/LER-1985-057, Responds to NRC 850809 Request for Addl Info Re Cutler- Hammer Type E30 Pushbutton Switches,Per LER 85-057-00 Re 850712 Control Room Ventilation Isolation Signal.Util, Cutler-Hammer,Inc & Bechtel Investigations in Progress ‎ (← links)
    • ML20244D607 ‎ (← links)
    • IA-87-711, Final Response to FOIA Request for LERs for Listed Plants. App a Document Available in Pdr.Forwards Partially Withheld App B Documents (Ref FOIA Exemption 4) ‎ (← links)
    • ML20236U529 ‎ (← links)
    • 05000482/LER-1985-004, :on 850319,following Initial Fuel Loading, Hourly Fire Watch Patrols for One Room in Auxiliary Bldg & One Room in Control Bldg Missed.Patrols Reestablished.W/ ‎ (← links)
    • 05000482/LER-1985-005, :on 850311,one roll-up Fire Door in Auxiliary Bldg Not Verified Closed Every 7 Days.Caused by Revised Surveillance Procedure Approved on 850226.Procedure Change Initiated & Issued on 850411 ‎ (← links)
    • 05000482/LER-1985-068, :on 850913,series of Changes to Fire Watch Patrol Log Initiated Which Ultimately Resulted in Failure to Patrol Area of Auxiliary Bldg from 850921-28.Caused by Personnel Error.Patrol Resumed ‎ (← links)
    • 05000482/LER-1985-075, :on 850106,main Steam Line Isolation Valve W/ Cracked Piston Slide Discovered in Hydraulic 4-way Valve.On 850607 & 11,two Addl Valves Failed.Following Replacement, Addl Valves Failed.Caused by Flaw in Mfg ‎ (← links)
    • 05000482/LER-1985-081, :on 851126,1209,10 & 13,control Room Ventilation Isolations Occurred Due to Chlorine Monitor Signaling High Levels in Outside Air to Control Bldg Ventilation Sys.Caused by Broken Tape ‎ (← links)
    • 05000482/LER-1985-086, :on 851220,discovered That Required Fire Dampers Not Installed in Ventilation Penetrations Through 3-h Fire Walls in Auxiliary Bldg.Caused by Design Oversight. Design Change to Require Fire Dampers Prepared ‎ (← links)
    • 05000482/LER-1985-071, :on 851009,control Room Ventilation Isolation Signal Initiated Due to Radiation Monitor in Control Bldg HVAC Sensing Low Voltage Condition.Caused by Lightning Strike.Low Voltage Condition Cleared ‎ (← links)
    • 05000482/LER-1985-072, :on 851010,high Water Level in Steam Generator C Initiated Main Turbine Trip & Main Feedwater Pump Turbine Trip.Caused by Personnel Error in Allowing Insufficient Time for Steam Generator Level to Stabilize ‎ (← links)
    • 05000482/LER-1985-069, :on 851007,turbine Trip,Feedwater Isolation, Steam Generator Blowdown,Sample Isolation & Auxiliary Feedwater Actuation Occurred.Caused by Manual Initiation of Reactor Trip Following Power Reduction ‎ (← links)
    • 05000482/LER-1985-073, :on 850911,violation of Tech Spec 3.3.3.8 Discovered When Five Transmitters/Receivers Associated W/ Control Room Fire Alarm Control Panel Found Disabled.Caused by Operator Error ‎ (← links)
    • 05000482/LER-1985-080, :on 851119,violation of Tech Spec 3.7.10.1 Was Discovered Due to Failure to Periodically Check Valve Position in Fire Suppression Water Sys.Caused by Personnel Oversight.Procedures Revised ‎ (← links)
    • 05000482/LER-1985-074, :on 851016,unusual Indications Noted in Radiological Control Access Area.Caused by Personnel Error & Improper Identification of Specific Actions to Reduce Pressure Before Placing Purge Sys in Operation ‎ (← links)
    • 05000482/LER-1985-077, :on 851031,hourly Fire Watches Not Initiated as Required When Fire Barrier Encl Around Auxiliary Feedwater Alternate Supply Valve Removed for Surveillance Testing. Caused by Personnel Error ‎ (← links)
    • 05000482/LER-1985-076, :on 851031,inadvertent Start of Turbine Driven Auxiliary Feedwater Pump Occurred Due to ESF Actuation. Caused by Cognizant Personnel Failure to Identify & Block Actuation Signal.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-053, :on 850717,during Surveillance Test Procedure, Control Room Ventilation Isolation Signal Initiated.Caused by Faulty Bypass Switch.Equipment Returned to Normal & Switch Replaced ‎ (← links)
    • 05000482/LER-1985-084, :on 851210,during Routine Update of Surveillance Data Base,Violation of Tech Spec 4.0.2b Re Allowable Time Intervals Discovered.Caused by Logic Error in Computer Program.Program Corrected ‎ (← links)
    • 05000482/LER-1985-070, :on 850813,hourly Containment Temp Readings Not Recorded for Approx 8 H Due to Containment Zone Fire Detector Failure.Caused by Procedural Personnel Error. Readings Resumed Immediately ‎ (← links)
    • 05000482/LER-1985-082, :on 851202,casing Failure on Potential Transformer Caused Loss of Offsite Power to ESF Transformer XNB01.Caused by Failure of Metering & Relay Potential Transformer Monitoring.Sys Restored ‎ (← links)
    • 05000482/LER-1985-079, :on 851204,unit Operated Under Provisions of Tech Spec 3.0.3.Caused by Failure to Reduce power-range High Neutron Flux Setpoints within Required Time Frame.Provision to Allow Change in Setpoints Being Considered ‎ (← links)
    • 05000482/LER-1985-055, :on 850806,control Room Ventilation Isolation Initiated Due to Radiation Monitor Alarm Signaling High Radiation Levels.Caused by lightning-induced Fluctuation to Radiation Monitor Supply.Investigation Begun ‎ (← links)
    • 05000482/LER-1985-060, :on 850807,reactor Trip & Feedwater Isolation Initiated Along W/Auxiliary Feedwater Actuations & Steam Generator Blowdown & Sample Isolation.Turbine Trip Caused by Moisture Separator Reheater Control Problem ‎ (← links)
    • 05000482/LER-1985-049, :on 850709,ESF Actuation & Reactor Trip Occurred Due to lo-lo Water Level in Steam Generator C. Caused by Loss of Feedwater Flow Due to Installation & Removal of Test Equipment.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-059, :on 850802,Tech Spec Violation Occurred When Two Rooms in Auxiliary Bldg Not Inspected for Evidence of Fire.Caused by Personnel Error.Personnel Instructed & Fire Watch Reestablished ‎ (← links)
    • 05000482/LER-1985-056, :on 850728,control Room Ventilation Isolation Occurred Due to High Chlorine Signal from Chlorine Monitor. Caused by Discoloration on chlorine-sensitive Paper Tape. Tape Replaced & Monitor Recalibr ‎ (← links)
    • 05000482/LER-1985-054, :on 850723,reactor & Main Turbine Trip, Auxiliary Feedwater Actuation,Feedwater Isolation & Steam Generator Blowdown & Sample Isolation Occurred.Caused by Wire Failure ‎ (← links)
    • 05000482/LER-1985-052, :on 850712,control Room Ventilation Isolation Signal Initiated Due to Alarm on Control Room HVAC Chlorine Monitor.Caused by Broken Filter Paper Tape.Tape Replaced ‎ (← links)
    • 05000482/LER-1985-050, :on 850710,hi-hi Water Level in Steam Generator Initiated Feedwater Isolation,Main Turbine Trip & Feedwater Pump Trip.Caused by Excessive Leakage Through Feedwater Control Valve.Valve Connections Adjusted ‎ (← links)
    • 05000482/LER-1985-067, :on 850923,reactor Trip,Turbine Trip,Steam Generator Blowdown & Sample Isolation,Feedwater Isolation & Auxiliary Feedwater Actuation Occurred.Caused by Failed Controller Card.Card Replaced ‎ (← links)
    • 05000482/LER-1985-057-01, :on 850712,three Control Bldg Dampers Failed to Close Following Unplanned ESF Actuation.Caused by Hardware/ Software Mismatch & Faulty Switch.Switch Replaced & Hardware/Software Mod Underway ‎ (← links)
    • 05000482/LER-1985-061, :on 850914 & 1003,control Room Ventilation Isolation Occurred Due to Chlorine Monitor Signaling High Levels Outside Air Makeup to Sys.Caused by Paper Tape Breakage.Parts in Paper Tape Drive Replaced ‎ (← links)
    • 05000482/LER-1985-042, :on 850705 & 11,ESF Actuation Occurred Resulting in Feedwater Isolation,Main Turbine Trip & Main Feedwater Pump Trips.Caused by High Water Levels in Steam Generator & Overlap Between Setpoints ‎ (← links)
    • 05000482/LER-1985-040, :on Seven Occasions Between 850702 & 12,ESF Actuation Initiated Control Room Intake Radiation Monitor Spurious Alarm.Caused by Mismatch Between Software & Hardware in Microprocessing Unit ‎ (← links)
    • 05000482/LER-1985-045, :on 850623,reactor Trip Occurred During Performance of Surveillance Test STS IC-211A.Caused by Inadvertent Breaker Trip Due to Confusing Procedural Steps. Procedure Revised ‎ (← links)
    • 05000482/LER-1985-066, :on 850803,RHR ECCS Degradation Occurred Twice During Surveillance Test.Caused by Inappropriate Procedure Test Method.Procedure Revised to Eliminate Recirculation Line ‎ (← links)
    • 05000482/LER-1985-065, :on 850905,main Turbine Trip Caused Reactor Trip,Feedwater Isolation,Auxiliary Feedwater Actuation,Steam Generator Blowdown & Sample Isolation.Caused by Faulty Control Pump Discharge Relief Valve ‎ (← links)
    • 05000482/LER-1985-048, :on 850628,daily Calorimetric Heat Balance Test & Adjustment of ex-core Nuclear Instrumentation Channel Gains Determined Not Performed from 850615-0623.Caused by Isolated Personnel Oversight ‎ (← links)
    • 05000482/LER-1985-064, :on 850902,reactor Trip,Turbine Trip,Steam Generator Blowdown & Sample Isolation,Feedwater Isolation & Auxiliary Feedwater Actuation Occurred as Result of lo-lo Water Level in Steam Generator 2 ‎ (← links)
    • 05000482/LER-1985-047, :on 850622,hourly Fire Watch Patrol Not Performed in Several Areas of Auxiliary Bldg.Caused by Personnel Error.Individual Dismissed & Hourly Fire Watch Patrols Performed by Permanent Personnel ‎ (← links)
    • 05000482/LER-1985-063, :on 850830,centrifugal Charging Pump a Declared Inoperable.On 850831,manual Isolation Valve on Pump Discharge Line Found Closed,Causing Pipe to Be Inoperable. Caused by Personnel Error ‎ (← links)
    • 05000482/LER-1985-062, :on 850902,control Room Ventilation Isolation Occurred.Caused by Chlorine Monitor Incorrectly Sensing High Chlorine Levels Due to Failure of Lamp in Monitor Analysis Unit.Lamp Replaced ‎ (← links)
    • 05000482/LER-1985-023, :on 850501,reactor Protection Sys Trip Signal & ESFAS Initiated During Startup Test Procedure in Mode 3. Caused by Personnel Error.Plant Testing Temporarily Suspended.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-022, :on 850430,safety Injection & Main Steam Line Isolation Occurred,Causing ESF Actuation.Unusual Event Declared & Subsequently Canceled.Caused by Interference from Operator Radio.Radio Use Restricted ‎ (← links)
    • 05000482/LER-1985-010, :on 850413,preaction Sprinkler Sys for Redundant Sys or Components Discovered Taken Out of Svc on 850411 W/O Establishing Continuous Fire Watch.Caused by Personnel Error.Event Reviewed W/Personnel ‎ (← links)
    • 05000482/LER-1985-043, :on 850609,feedwater Isolation Signal,Main Turbine Trip & Steam Generator Feed Pump Turbine Trip Signals Occurred Due to hi-hi Water Level in Steam Generator A.Caused by Leak Through Main Control Valves ‎ (← links)
    • 05000482/LER-1985-039, :on 850606,during Test of Steam Dump Control Sys,Reactor Trip & Low Coolant Sys Average Temp Initiated Feedwater Isolation Signal.Caused by lo-lo Steam Generator Water Level.Water Levels Returned to Normal ‎ (← links)
    • 05000482/LER-1985-041, :on 850609 & 13,auxiliary Feedwater Actuation & Steam Generator Blowdown & Sample Isolation Occurred. Caused by Main Feedwater Pump a Trips ‎ (← links)
    • 05000482/LER-1985-025, :on 850501,two Main Steam Line Isolation Valves Declared Inoperable.Caused by Hydraulic Oil Pump Malfunction.Oil Pumps Replaced & Valves Tested ‎ (← links)
    • 05000482/LER-1985-026, :on 850506,ESFAS Signal Initiated When Two Radiation Monitors Deenergized Due to Inadvertent Loss of Power to safety-related 480-volt Ac Load Ctr.Caused by Personnel Error.Sys Restored to Normal ‎ (← links)
    • 05000482/LER-1985-024, :on 850501,ESFAS Signal Initiated When Steam Generator a Level Indication Spiked Low,Resulting in Initiation of Feedwater Isolation Signal & Auxiliary Feedwater Actuation Signal ‎ (← links)
    • 05000482/LER-1985-037, :on 850602,spurious Electronic Spike in Control Room Intake Radiation Monitor (GK-RE-04) Occurred. Caused by Mismatch Between Software & Hardware in Microprocessing Unit RM-80 ‎ (← links)
    • 05000482/LER-1985-019, :on 850426,auxiliary Feedwater Actuation Signal Occurred.Caused by Operator Placing Switch FC-HS-25 in Permit Position.Switch Returned to Block Position.Error Discussed W/Operating Personnel ‎ (← links)
    • 05000482/LER-1985-017, :on 850424,Ruskin Mfg Co Fire Dampers Found in Violation of Tech Specs Since Issuance of OL on 850311. Caused by Insufficient Clearance Between Damper Frames & Penetration Sleeves.Fire Watches Established ‎ (← links)
    • 05000482/LER-1985-021, :on 850428,ESF Actuation Occurred.Caused by Anticipatory Trip Generated by rate-sensitive Steam Generator Circuiting Due to Personnel Error.Setpoint Actuation Will Be Stressed During Training ‎ (← links)
    • 05000482/LER-1985-014, :on 850421,ESFAS Initiated When Control Room Chlorine Monitor Ran Out of Paper,Causing Ventilation Isolation Signal.Caused by Personnel Error.Schedule for Changing Paper Increased to Twice Weekly ‎ (← links)
    • 05000482/LER-1985-038, :on 850604,auxiliary Feedwater Actuation Signal & Steam Generator Blowdown & Sample Isolation Signal Initiated.Caused by Auxiliary Boiler Trip.Pumps Secured ‎ (← links)
    • 05000482/LER-1985-044, :on 850614,feedwater Isolation,Auxiliary Feedwater Actuation,Steam Generator Blowdown & Sample Isolation Occurred.Caused by Higher than Actual Indication of Reactor Power Level ‎ (← links)
    • 05000482/LER-1985-036-01, :on 850531,ESF Actuation Signal Initiated When Steam Generator Level Bistable Tripped in Error During Maint Activity.Caused by Technician Pressing Trip Button on Wrong Bistable Logic Card.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-036, :on 850531,when Steam Generator Level Bistable Tripped in Error During Maint,Esfas Initiated.All ESF Equipment Responded Properly.No Equipment Damage or Release of Radioactivity Noted ‎ (← links)
    • 05000482/LER-1985-031, :on 850611,ESF Actuation Signal Initiated Due to hi-hi Water Level in Steam Generator C,Initiating Feedwater Isolation,Main Turbine Trip & Main Feedwater Pump Trip Signals ‎ (← links)
    • 05000482/LER-1985-012, :on 850419,inadvertent Train B Safety Injection Occurred.Caused by Loose Limit Switch Tug in Valve Motor Operator.Switch Lug Repaired ‎ (← links)
    • 05000482/LER-1985-033, :on 850523,manual Control Room Ventilation Isolation Signal Initiated.Caused by Electronic Spike from Control Room Chlorine Monitor Displaying Erratic Behavior. Potential Equipment Mod Under Evaluation ‎ (← links)
    • 05000482/LER-1985-011, :on 850412,control Room Ventilation Isolation Signal Occurred.Caused by Spurious Spike on Chlorine Monitor GK-AITS-2.Monitor Placed in Bypass & Later Returned to Svc ‎ (← links)
    • 05000482/LER-1985-032, :on 850521,containment Purge & Control Room Ventilation Isolation Signals Initiated.Caused by Inadvertent Repositioning of ESFAS Cabinet Test Switch While Performing Test Procedure STS IC-230 ‎ (← links)
    • 05000482/LER-1985-034, :on 850524,containment Water Level Instrument LF-LI-09 Found in out-of-svc Condition.Caused by Obstruction on Slide Pole Resulting from Insulation Activity.Obstruction Removed & Instrument Returned to Svc ‎ (← links)
    • 05000482/LER-1985-030, :on 850518,ESFAS & Feedwater Isolation Occurred When Steam Generator Level Transmitter Sensed Erroneous High Level Condition.Caused by Pressure Perturbation in Common Sensing Line ‎ (← links)
    • 05000482/LER-1985-028, :on 850516,auxiliary Feedwater Actuation Signal Initiated When Steam Generator D Decreased Below lo-lo Actuation Setpoint.Caused by Personnel Error.Personnel Counseled & Required to Read LER ‎ (← links)
    • 05000482/LER-1985-027, :on 850506,ESF Actuation Occurred,Resulting in Safety Injection & Main Steam Line Isolation Due to Low Steam Line Pressure Signal on Steam Generator A.Caused by Personnel Error.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-029, :on 850506,containment Purge Isolation Control Room Ventilation Isolation & Fuel Bldg Ventilation Isolation Signals Occurred During Recovery from Safety Injection. Caused by Procedural Deficiency ‎ (← links)
    • 05000482/LER-1985-013, :on 850506,15,23,26 & 30,ESF Actuation Signal Initiated by Control Room Intake Radiation Monitor Spurious Alarm,Causing Control Room Ventilation Isolation Signal. Caused by Mismatch in Microprocessing Unit ‎ (← links)
    • 05000482/LER-1985-010-01, :on 850411,preaction Sprinkler Sys for Area Containing Redundant Sys Taken Out of Svc W/O Establishing Required Continuous Fire Watch.Situation Discovered on 850413.Caused by Personnel Error ‎ (← links)
    • 05000482/LER-1985-020, :on 850429,ESF Actuation Signal Initiated When Steam Generator C Water Level Increased to High Level Setpoint.Caused by Personnel Error.Event Considered Isolated Case.Shift Supervisor & Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-009, :on 850412,ESF Actuation Signal Initiated When Several Radiation Monitors Deenergized.Caused by Ground Fault Indication Tripping Power Supply Breaker.Breaker Reset & Power Restored ‎ (← links)
    • 05000482/LER-1985-006, 00:on 850407,ESF Actuation Resulted Due to Inadvertent Actuation of Fuel Bldg Ventilation & Control Room Ventilation Isolation Signals.Caused by Personnel Error.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-008, :on 850409,ESF Actuation Signal Initiated While Resetting Flow on Containment Purge Gaseous Activity Monitor.Caused by Faulty Vacuum Transducer.Transducer Replaced ‎ (← links)
    • 05000482/LER-1985-007, :on 850408,control Room Ventilation Isolation Signal Occurred During Surveillance Procedure in Mode 5. Caused by Personnel Error.Control Room HVAC Monitor Bypassed.Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-002, :on 850313,control Room Air Intake Radiation Element in Bypass for Greater than 1 H W/O Isolating Emergency Ventilation Sys.Caused by Personnel Error. Personnel Counseled ‎ (← links)
    • 05000482/LER-1985-001, :on 850313,16 & 19,containment Purge Isolation & Control Room Ventilation Isolation Signals Actuated During Initial Fuel Loading.Caused by Faulty Relay in Radiation Monitor.Relay Replaced ‎ (← links)
    • 05000482/LER-1985-003, :on 850314,ESF Signal Initiated.Caused by Operator Deenergizing Control Room Radiation Monitor.Error Reviewed by Shift Supervisor & Personnel ‎ (← links)
    • 05000482/LER-1985-058-01, Corrected LER 85-058-01:on 850731,reactor Trip,Main Turbine Trip,Auxiliary Feedwater Actuation,Feedwater Isolation & Steam Generator Blowdown & Sample Isolation Occurred.Caused by Faulty Power Supply to Channel.Power Replace ‎ (← links)
• 05000000/LER-1985-083, Partially Withheld LER 85-083-00:on 851213 & 16,determined That Certain Vital Barrier Penetrations Did Not Contain Required Personnel Restraint Features.Caused by Personnel Error.Efforts of Security Task Force Reprioritized ‎ (← links)