Pages that link to "U-602193, Special Rept:On 930927,valid Failure of Div II DG Occurred During Surveillance Testing.Caused by Insufficient Contact Pressure Between Contacting Surfaces.Contact Pressure Checks to Improve Component Reliability Implemented"
Jump to navigation
Jump to search
The following pages link to U-602193, Special Rept:On 930927,valid Failure of Div II DG Occurred During Surveillance Testing.Caused by Insufficient Contact Pressure Between Contacting Surfaces.Contact Pressure Checks to Improve Component Reliability Implemented:
Displayed 2 items.
- ML20057F800 (redirect page) (← links)
- ML20236B588 (← links)
- ML20216J286 (← links)
- U-603014, Special Rept:On 980512,lightning Struck Primary Meteorological Monitoring Instrumentation Tower Damaging 60- Meter Wind Speed & Associated Transmuter Circuit Card. Surveillance Testing Performed (← links)
- U-601015, Ro:On 870816,protected Area Intrusion Detection Sys Deactivated Due to Severe Weather.Compensatory Measures in Place.Security Personnel Removed from Post booths.Closed- Circuit Television Observers Posted Until Weather Cleared (← links)
- U-600964, Special Rept:On 870610,earthquake Estimated to Be 5.0 on Richter Scale Noted.Walkdowns of Plant Structures & Sys Conducted.No Damage or Abnormal Conditions Observed.Related Info,Including Sargent & Lundy ...Seismic...Rept, Encl (← links)
- U-601026, Summary Rept:On 870828,notification of Unusual Event Declared Per Emergency Plan Implementing Procedures EC-02. Personnel Informed of Bomb Threat Made Against Util.Security Levels Tightened & Searches Performed.No Explosives Found (← links)
- U-601017, Ro:On 870819,bomb Threat Received.Security Levels Tightened. State of Il,Nrc Incident Response Ctr & NRC Resident Inspector Notified.No Explosives Located (← links)
- U-601004, Ro:On 870804,notification of Unusual Event Declared Due to Inoperability of Channel 1B21-N697A,LPCS,LPCI & RHR B. Functional Test of Channel Performed & Device,Lpcs & LPCI Declared Operable.Notification of Unusual Event Terminated (← links)
- U-600977, Ro:On 870704,protected Area Intrusion Detection Sys Deactivated Due to Severe Weather.Compensatory Measures Not Taken Due to Personnel Safety.Util Will Review Area of Formal Communications & Take Corrective Actions (← links)
- U-600970, Special Rept:On 870608,plant Failed to Reach Rated Voltage & Rated Speed in Equal to or Less than 12 S.Caused by Linkage Connecting Shaft to Fuel Rack Out of Alignment.Alignment Requirements & Linkage Reworked (← links)
- U-600941, Special Rept:On 870411,operator Discovered No Power to Play Back Pens (All Lights Out) of Playback Unit.Caused by Blown Fuses of Recorder,Playback & Analyzer.Sensor & Portion of Circuit Boards Have Been Replaced (← links)
- U-600928, Ro:On 870506,reactor Manually Scrammed When Reactor Pressure Vessel Level Began to Rise.Caused by Failure of Feedwater Valve Controlling Flow of Water to Reactor to Open.Reactor Shut Down.State of Il & NRC Response Ctr Notified (← links)
- U-600956, Final Status of Repair & Anticipated Schedule for Restoration of Remaining Out of Svc Annunciators.One Annunciator Listed in Groups 1 & 2 of Util Remain to Be Repaired (← links)
- U-600947, Notification of Unusual Event:On 870524,motor-driven Feed Pump Regulating Valve 1FW-F004 Malfunctioned,Increasing Reactor Water Level.Cause Under Investigation.Valve Shifted to Manual Control W/No Response.Event Terminated Same Day (← links)
- U-603232, Special Rept:On 990531 Lpms Was Declared Inoperable Due to Receipt of High Vibration & Loose Parts Alarm Which Did Not Clear.Lpms Was Restored to Operable Status on 990707 After Alignment & Tension on Recorder Tape Drive Was Adjusted (← links)
- U-601309, Ro:On 881111,generator Trip W/Reactor Scram Occurred Due to Sudden Pressure Actuation on 1C Main Power Transformer & Fire on Insulator of 1C Main Power Transformer Discovered. Fire Extinguished (← links)
- U-601298, Ro:On 881026,Tech Spec 3.0.3 Entered Due to Declaring Control Room Ventilation Train a Inoperable.Caused by Faulty Flow Transmitter.Reactor Power Was Reduced & Calibr on Train a Flow Transmitter Performed (← links)
- U-600890, Ro:On 870322,containment Isolation Occurred on Instrument Air Sys During Surveillance of ECCS Reactor Water Level Channel Functional Checklist.Cause Not Stated.Reactor Shut Down (← links)
- U-602940, Ro:On 980213,alert Emergency Classification Was Declared IAW EPIP EC-02, Emergency Classifications. Caused by Tripped Inverter.Rhr a Was Restored at Approx 0945 H & Emergency Terminated at 1004 H Per EPIP EC-04, Alert (← links)
- U-602921, Special Rept:On 980113,operations Personnel Declared Meteorological Tower Wind Direction Instrumentation Inoperable.Consistent Difference Suspected to Have Been Caused by Rotation of Either or Both of Wind Sensor (← links)
- U-601219, Ro:On 880623,maint Technician Badly Burned in 762-ft Radwaste Evaporator Vapor Body Room.Caused by Performing Work on Wrong Evaporator.Evaporator Secured & Technician Given Medical Attention (← links)
- U-603101, Special Rept:On 980918,discovered That Triaxial Seismic Accelerometers Had Not Been Properly Calibrated.Caused by Inadequate Calibration Procedure.Calibration to Be Performed off-site (← links)
- U-601265, Ro:On 880901,HPCS Initiated & Injected Water Into Reactor for 28 During Maint Surveillance Activities on Reactor Water Level Transmitter.Injection Valve & HPCS Pump Secured. Notification of Unusual Event Lasted Approx 10 Minutes (← links)
- U-601258, Special Rept:On 880803,accident Monitoring Instrumentation for HVAC Stack Declared Inoperable for More That 72 H.Caused by Underway Work to Perform Routine Channel Calibr.Plant Condition Rept Initiated (← links)
- U-601173, Special Rept:On 880329,discovered Failure of Wind Velocity & Direction Sensors on Facility Meteorological Tower.Caused by Inadvertent Exposure of Sensors to Weather.Sensor Assembly, Including Retaining Device Replaced (← links)
- U-602068, Ro:On 921107,ORIX-PR008 Was Declared Inoperable Due to Lo Fail Signal Received for Channel 3 Which Was Unable to Be Reset.Preplanned Alternate Method of Monitoring HVAC Stack Initiated (← links)
- U-602049, Ro:On 920922,Control Room Received Notification That Employee Working in Radwaste Sort Tent Had Been Injured & Potentially Contaminated.Ambulance Called to Respond.Hosp Notified Util That Victim Was Not Contaminated (← links)
- U-602057, Special Rept:On 920921,generator Output Breaker Failed to Close on Four Attempts.Caused by Bent Protective Cover Over Auxiliary Switches & anti-pump Coil.Output Breaker Racked to Test Position & Sucessfully Cycled Three Times (← links)
- U-601991, Ro:On 920522,discovered That External Vessel Surface Was Hot & Chart Recorder Indicated Absorber Bed Temp Greater than 300F.Fire Brigade Was Activated.Sampling Process Established to Monitor Purge Exhaust Composition (← links)
- U-602035, Special Rept:On 920717 & 0807,output Breaker Failed to Close During Periodic Testing of Dg.Caused by Failure of H1 trunk-operated Contact Switch Due to Slight Breaker Movement.Vendor Manual for Switchgear Will Be Reviewed (← links)
- U-602534, Special Rept:On 951206,determined Facility May Have Been Operated Above Max Power Level Authorized by License Due to Error in Reactor Heat Balance.Util Will Bias CRD Sys Flow Process Computer Point (← links)
- U-601970, Special Rept:On 920328,diesel Generator 1B Manually Started But Stabilized Outside TS Range of 60 + or - Hz. Caused by Failure of Power Supply for Electronic Speed Controller.Power Supply Replaced (← links)
- U-602527, Special Rept:On 951103,reactor Water Cleanup Sys Flow Rate Computer Valve Substituted W/Value of Zero & Sys Actually Operating.Caused by Lack of Attention.Shift Technical Advisor Immediately Restored Computer (← links)
- U-601942, Revised Special Rept Re non-valid Test Failure of Div I DG, Describing Correct Steps Involved in Synchronizing DG W/ Offsite Power.Dg Output Voltage Adjusted Such That It Is Slightly Higher than Offsite Power Voltage (← links)
- U-601931, Special Rept:On 920109,diesel Generator 1A Tripped Due to Reverse Power.Caused by Improper Manual Loading Following Synchronization W/Offsite Power.Dg 1A Manually Started to Demonstrate Operability Per Surveillance Procedure 9080.01 (← links)
- U-601946, Special Rept:On 920302,meteorological Tower Differential Air Temp Instrumentation Declared Inoperable to Facilitate Troubleshooting Re Discrepancy in Meteorological Data. Missing Ducting Tube from Aspirator Installed (← links)
- U-602426, Ro:On 950301,plant Was Operating at Approx 75% Fire Was Reported in a turbine-driven Reactor Feed Pump Room (← links)
- U-602421, Ro:On 950216,Div 2 125 Volt Dc Electrical Power Sys Declared Inoperable.Caused by Failure of Silicon Controlled Rectifier Firing Board in Div 2 Battery Charger.Battery Charger Repaired (← links)
- U-601893, Special Rept:On 911001,ORIX-PRO12 Declared Inoperable in Order to Perform Channel Calibr in Accordance W/Ts Surveillance Requirement 4.3.7.5.Calibr Initially Performed by day-shift C&I Crew,Then Backshift Crew (← links)
- U-602348, Special Rept:On 940906,CPS Declared Loose Parts Monitoring Sys Out of Svc.Caused by False Alarms.Util Will Recalibrate Channel Six (← links)
- U-601834, Special Rept:On 910404,during Surveillance Diesel Generator 1A Reached Required Voltage & Frequency But Failed to Close & Phase Undervoltage Relay B-C Tripped.Cause Not Determined.Racking Mechanism Will Be Inspected & Lubricated (← links)
- U-602311, Special Rept:On 940624,inoperabilities of Meteorological Monitoring Instrumentation Channels for More than 7 Days Identified.Personnel Worked Expeditiously to Return Meteorological Instrumentation to Operable Status (← links)
- U-602308, Special Rept:On 940607,determined Valid Failure of Div 1 EDG Had Occurred Due to Excessive Current.Replaced Failed Relay (← links)
- U-601788, Special Rept:On 910106,Div II Diesel Generator Failed During Test.Caused by Malfunction of A-3 Relay Tachometer. Preventive Maint Task Will Be Issued to Remove,Inspect & Bench Test A-3 Relay Every Two Yrs (← links)
- U-602189, Follow-up Special Rept on Progress of Investigation Into Diesel I DG Test Failures That Occurred on 930623,0721 & 0803.Current Number of Valid Failures in Last 100 Valid Tests of DG1A Is Seven.Testing for DG1A Conducted (← links)
- U-602193, Special Rept:On 930927,valid Failure of Div II DG Occurred During Surveillance Testing.Caused by Insufficient Contact Pressure Between Contacting Surfaces.Contact Pressure Checks to Improve Component Reliability Implemented (← links)
- U-602193 (redirect page) (← links)