Pages that link to "ML20249B559"
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The following pages link to ML20249B559:
Displayed 50 items.
- PNO-III-97-031, on 970401,licensee Identified Fractures on Auxiliary Switch Contact Block Mounted on 4 Kv Breaker Prior to Installation in Unit 2 safety-related Bus.Licensee Presently Testing Similar Breakers (← links)
- PNO-III-86-003, on 860120,insulating Matl Between Outer Drywell Surface & Concrete Shielding Wall Began to Smolder During Welding.Personnel Evacuated.Area Hosed Down.Licensee Evaluating Consequences of Fire (← links)
- PNO-III-80-164, on 800902,licensee Found Leakage from 10-inch Core Spray Piping Inside Drywell.Two Welds in a Loop Have Seepage & One Weld in B Loop Has Visible Crack.Unit Is in Refueling Outage (← links)
- PNO-III-80-176, potentially High Press Interest Exists in Results of Institute of Nuclear Power Operations Insp of Station.Summary of Insp Rept Encl (← links)
- PNO-III-86-032, on 860401,main Control Room Panels for Both Units Found Unbolted.Caused by Improper Installation Per Design Drawings.Panels Being Bolted to Support Beams.Cause of Discrepancy Under Investigation (← links)
- PNO-III-85-101, on 851214,contractor Employee Found Dead in Reactor Bldg Basement.Caused by Fall of Approx 40 Ft from Exterior of Torus & Striking of Valve During Fall.Grundy County Sheriff Dept & Coroner Notified (← links)
- PNO-III-97-009, on 970221,contaminated Scrap Metal Occurred. Licensee Also Indicated Addl Scrap Metal Located at Il Railroad Supply Co in Cordova,Il.Nrc Inspectors Monitored Licensee Activities Surrounding Incident (← links)
- PNO-III-97-014, on 970227,employee Exiting Plant Had Set Off Radiation Detector.Employee Hands Found to Have Low Levels of Contamination.Staff from Dresden Plant Interviewed Employee Re Work Activities to Determine Contamination (← links)
- PNO-III-97-022, on 970311,Unit 1 Reactor Shut Down to Repair Reactor Protection Sys Scram Relay Malfunction.Conservative Decision Made to Repair Relay While Shutdown Rather than Troubleshoot During Power Operations (← links)
- PNO-III-85-084, on 850919,reactor Scrammed Due to Mechanic Bumping Circuit Board.Reactor Bldg Evacuated Due to Steam Leak & High Radiation Alarms.Four People Slightly Contaminated (← links)
- ML20126C709 (← links)
- PNO-III-80-029, on 800208,industrial Accident Occurred in Area of Torus Involving Loss of Two Fingers by Contractor. No Gross Contamination Was Detected Due to Low Contamination Levels in Torus Area (← links)
- PNO-III-79-057, on 791209,draining Operation from Svc Water Header of Heat Exchanger Resulted in Unplanned Release of Radioactive Liquid from Primary Side When All Valves Feeding Instrument Header Were Opened (← links)
- ML20125C630 (← links)
- ML20151X593 (← links)
- ML20151X566 (← links)
- ML20151U429 (← links)
- PNO-III-88-066, on 880724,unit Shut Down to Investigate Ground (Short) in Main Generator.Plant Expected to Remain Shut Down for 2 to 6 Wks for Generator Repairs (← links)
- PNO-III-94-079, on 941002,shut Down of Units Occurred When Operators Discovered Temp Differential Between Loop a & Loop B Exceeded 50 Degrees F.Inspectors Monitored Licensees Activities During & After Shutdown (← links)
- PNO-III-83-100, on 831020,ultrasonic Testing Identified One Crack & Ten Crack Indications in Unit 2 Primary Sys Piping, Including Seven Indications in Reactor Water Recirculation Sys.Licensee Intends to Issue News Announcement (← links)
- PNO-III-88-046, on 880517,test Performed as Part of Investigation of Dec 1987 Incident in Which Air Line Became Disconnected on One MSIV & Did Not Fully Close.Ait Will Maintain Insp Coverage of Activities Associated W/Msiv (← links)
- PNO-III-88-053, on 880604,while Unit 3 Was Shutdown for Refueling Outage,Contractor Fire Watch Noticed Smoke Coming from Beneath Welder Working on Struts Being Installed on RWCU Sys Piping Penetration Inside RWCU Pipe Way Pit (← links)
- PNO-III-89-017, on 890302,licensee Personnel Entered Unit 2 Drywell to Investigate Possible Leak.Steam Leak Observed from Vacuum Breaker on Discharge Piping from C Electromagnetic Rv,Which Was Indicative of Valve Leakage (← links)
- PNO-III-89-042, on 890629,unit 1 Turbine Tripped,Causing Reactor Scam.Licensee in Process of Placing Reactor in Cold Shutdown to Repair Degraded Inner Seal on 1B Reactor Circulation Pump Prior to Startup.State of Il Notified (← links)
- PNO-III-89-036, on 890516,unit 1 Was Shutdown to Repair Socket Weld Leak on Feedwater Regulating Valve Bypass Line. Licensee Plans to Repair Other Minor Leaks & Perform Maint Activities During Unplanned Outage.State of Il Notified (← links)
- PNO-III-90-028, on 900410,dye Penetrant Testing on Inside of Reactor Vessel Head Identified 23 Cracks of Various Dimensions.Licensee Begun Repairing Cracks by Grinding Cracked Areas (← links)
- PNO-III-96-066, on 961026,3B Reactor Recirculation Pump motor-generator Tripped.Licensee Determined Recovery of Idle Loop Impossible W/O Plant Shutdown & Began Controlled Shutdown.Independent Insp Safety Team Onsite for Review (← links)
- PNO-III-86-076, on 860804,isolation Valves in Nitrogen Lines to CRD Accumulators Found Closed.Caused by Mispositioning of Valve.Licensee Investigating Mispositioning to Determine Cause (← links)
- PNO-III-86-078, on 860806,leakage of Approx 144,000 Gallons of Primary Sys Coolant Water from RWCU Sys Into Torus Bldg Sumps Reported.Cause Undetermined.Rwcu Sys Isolated & Leakage Terminated.Investigation Continuing (← links)
- PNO-III-86-099, on 860917,licensee Shut Reactor Down to Permit Cleaning of Main Condenser.Condenser Tubes Became Partially Blocked by Clams/Clam Shells.Other Maint Work Also Planned.Restart Expected No Earlier than 860919 (← links)
- PNO-III-93-051, on 930901,licensee Shut Unit 2 Down to Repair body-to-bonnet Leak in Feedwater Check Valve Which Makes Up Part of Containment Isolation Boundary.Leak Was Reduced to Weep by Tightening Bonnet Studs (← links)
- PNO-V-86-016, on 860407,State of Wa Informed Region That One Drum in 860403 Radwaste Shipment from Facility Had Hole in Side.Util Barred from Use of Burial Site.Burial Permit 2280 Suspended Effective on 860404 (← links)
- PNO-III-91-038, w/Dresden Unit 3 in Cold Shutdown & Reactor Defueled,Licensee Experienced Loss of All Unit 3 Annunciators in Control Room.Loss Caused by Blown 3 Amp Fuse.Fuse Replaced & Control Room Annunciators Restored (← links)
- ML20207G426 (← links)
- ML20207G397 (← links)
- ML20207G253 (← links)
- PNO-III-97-099, on 971219,unit Shut Down Due to Incomplete App R Safe Shutdown Analysis for Various Fire Scenarios. Licensee Completed Procedure Revs & Exited Administrative Technical Requirement in Early Dec (← links)
- PNO-III-87-054, on 870409,unit Manually Shut Down & Scrammed Following Vacuum Problem in Main Condenser & Increasing Temp in Hotwell.Caused by Partially Dislodged Ceiling Embedment Plate Supporting Portion of Lpci.Plate Repaired (← links)
- PNO-III-86-087, on 860827,plant Shut Down Due to Equipment Problems Resulting in Inoperable HPCI Sys & Train B of Core Spray Sys.Addl Problems Identified During Shutdown.Repairs Underway (← links)
- PNO-III-87-033, on 870303,shutdown Cooling Sys Pump 3A Declared Inoperable Following Insp Which Showed Degradation of Oil Quality from Upper Bearing Housing.Util Does Not Plan to Resume Reactor Operation Prior to 870304 (← links)
- PNO-III-87-031, on 870217,loosened Bolt Discovered on Diesel Generator Cooling Pump Flange.Caused by Deliberate Loosening of Bolts.Licensee Increased Security Coverage Pending Completion of Investigation (← links)
- PNO-III-86-017, on 860303,HPCI Sys Declared Inoperable When Water Backed Up Into HPCI Turbine.Caused by HPCI Gland Exhaust Condenser Tube Leak Coupled W/Failure of Sump Pump Motor.Repairs to Condenser Expected to Take 4 Days (← links)
- PNO-III-86-132, on 861110,10 of 24 Reactor & Senior Reactor Operators Failed Written NRC Requalification Exam. Confirmatory Action Ltr Will Be Issued by Region Iii.Util Will Administer Accelerated Program (← links)
- PNO-III-87-029, on 870126,six of Twelve ROs & SROs Failed Requalification Exam.Operators Who Failed Exam Removed from Licensed Operating Activities (← links)
- PNO-III-85-030, on 850401,during Visual Exam Prior to Ultrasonic testing,through-the-wall crack-like Indication Noted in Area Between Main Recirculation Pump & Base of Jet Pump Riser (M).Corrective Action Will Be Monitored (← links)
- PNO-III-89-027, on 890417,one of Four Electromagnetic Relief Valves Stuck Open During Testing & Reactor Manually Scrammed.Probably Caused by Eroded Seat on Pilot Valve. Relief & Pilot Valves Replaced (← links)
- ML20244A976 (← links)
- ML20244A975 (← links)
- PNO-III-87-105, on 870807,reactor Manually Scrammed.Caused by Variations in Feedwater Flow to Reactor & Leakage from Feedwater Sys.Ndt Performed Small Diameter Feedwater Piping & Other High Stress Areas (← links)
- ML20249B893 (← links)