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| Issue date | Title | Topic | |
|---|---|---|---|
| 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 | 22 December 1997 | 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 | Safe Shutdown |
| PNO-III-97-071, on 970903,Comm Ed Announced Series of Mgt Changes & Restructuring of Nuclear Div Organization.New Site Vice Presidents at Braidwood & Quad Cities Former Plant Managers.State of Il Will Be Notified of Mgt Changes | 3 September 1997 | PNO-III-97-071:on 970903,Comm Ed Announced Series of Mgt Changes & Restructuring of Nuclear Div Organization.New Site Vice Presidents at Braidwood & Quad Cities Former Plant Managers.State of Il Will Be Notified of Mgt Changes | |
| 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 | 10 April 1997 | 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 | |
| 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 | 12 March 1997 | 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 | |
| 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 | 24 February 1997 | 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 | |
| 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 | 3 October 1994 | 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 | |
| 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 | 2 September 1993 | 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 | |
| PNO-III-90-073, on 901029,reactor Scrammed from About 1% Power as Result of High Reactivity Caused by Improper Withdrawal of Control Rods | 29 October 1990 | PNO-III-90-073:on 901029,reactor Scrammed from About 1% Power as Result of High Reactivity Caused by Improper Withdrawal of Control Rods | |
| 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 | 11 April 1990 | 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 | |
| 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 | 19 May 1989 | 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 | |
| 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 | 18 April 1989 | 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 | |
| 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 | 3 March 1989 | 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 | |
| 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 | 25 July 1988 | 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 | |
| PNO-II-87-135, on 871019,equipment Operator Attempted to Open Electrical Breaker for Circulating Water Pump 2A & Inadvertently Opened Adjacent Breaker for CRD Hydraulic Pump.Operator Actions Created Fire Ball,Damaging Breaker | 21 October 1987 | PNO-II-87-135:on 871019,equipment Operator Attempted to Open Electrical Breaker for Circulating Water Pump 2A & Inadvertently Opened Adjacent Breaker for CRD Hydraulic Pump.Operator Actions Created Fire Ball,Damaging Breaker | |
| PNO-III-87-104, on 870801,reactor Scram Occurred as Result of Turbine & Generator Trips Due to Fault in Main Transformer. Licensee Investigating Cause of Problem.Unit Expected to Be Shut Down for Several Wks for Replacement of Transformer | 3 August 1987 | PNO-III-87-104:on 870801,reactor Scram Occurred as Result of Turbine & Generator Trips Due to Fault in Main Transformer. Licensee Investigating Cause of Problem.Unit Expected to Be Shut Down for Several Wks for Replacement of Transformer | Scram Discharge Volume |
| PNO-III-87-081, on 870610,earthquake Measuring 5.0 on Richter Scale Occurred Near Lawrenceville,Il.Unusual Events Declared by Six Power Stations But No Damage Observed.Ground Motion Felt at Five Other Plants | 11 June 1987 | PNO-III-87-081:on 870610,earthquake Measuring 5.0 on Richter Scale Occurred Near Lawrenceville,Il.Unusual Events Declared by Six Power Stations But No Damage Observed.Ground Motion Felt at Five Other Plants | Earthquake |
| 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 | 2 April 1987 | 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 | |
| PNO-III-86-142, on 861205,licensees Notified NRC That Electrical Splices Did Not Meet Environ Qualification Requirements & Plants Shut Down.Each Unit Has 150 Splices Which Must Be Repaired.Repairs Expected to Take 5 Days | 5 December 1986 | PNO-III-86-142:on 861205,licensees Notified NRC That Electrical Splices Did Not Meet Environ Qualification Requirements & Plants Shut Down.Each Unit Has 150 Splices Which Must Be Repaired.Repairs Expected to Take 5 Days | |
| 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 | 10 November 1986 | 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 | |
| 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 | 3 March 1986 | 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 | |
| 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 | 20 October 1983 | 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 | |
| PNO-III-82-062, on 820629,three-nonlicensed Stationmen at Quad-Cities Station Identified by Alleger as Users of Marijuana.On Same Day,During Search of Incoming Truck, Security Personnel Discovered Marijuana Cigarette | 30 June 1982 | PNO-III-82-062:on 820629,three-nonlicensed Stationmen at Quad-Cities Station Identified by Alleger as Users of Marijuana.On Same Day,During Search of Incoming Truck, Security Personnel Discovered Marijuana Cigarette | |
| PNO-V-82-030, on 820622,shipment of low-specific Activity Received Containing Drum w/1 to 1-1/2-inch Hole in Lid of Drum.No Loose Radioactive Contamination.Hole Sealed & Drum Placed in Burial Trench for Disposal | 24 June 1982 | PNO-V-82-030:on 820622,shipment of low-specific Activity Received Containing Drum w/1 to 1-1/2-inch Hole in Lid of Drum.No Loose Radioactive Contamination.Hole Sealed & Drum Placed in Burial Trench for Disposal | |
| PNO-III-80-164A, on 800919,no Addl Cracking in Core Spray Piping Has Been Identified Other than Pipe Cracks Previously Identified.Licensee Intends to Replace Defective Piping Elbows W/Different Matl | 19 September 1980 | PNO-III-80-164A:on 800919,no Addl Cracking in Core Spray Piping Has Been Identified Other than Pipe Cracks Previously Identified.Licensee Intends to Replace Defective Piping Elbows W/Different Matl | |
| 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 | 3 September 1980 | 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 | |
| ML20126C709 | 14 March 1980 | Updated PNO-III-80-045B:licensee Ultrasonic Examination of Core Spray Piping in a & B Loops Located in Drywell Completed.Piping Will Be Replaced W/Low Carbon Steel Pipe | |
| ML20244A976 | 12 March 1980 | PNO-III-80-45A:on 800308,licensee Reported Leakage from 10 Inch Core Spray Piping Inside Drywell During Hydrostatic Test of Primary Sys.Ultrasonic Exam Reveals Cracks in Three Welds in Loop a in First Elbow Beyond Nozzle | Hydrostatic |
| ML20244A975 | 10 March 1980 | PNO-III-80-45:on 800308,during Hydrostatic Test of Primary Sys,Leakage Discovered from 10 Inch Core Spray Piping Inside Drywell.Leakage Appears to Be from Heat Affected Zone Where Two 45 Degree Elbows Welded.Ultrasonic Testing Planned | Hydrostatic |
| 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 | 8 February 1980 | 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 | |
| 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 | 10 December 1979 | 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 | |
| ML20125C630 | 16 November 1979 | PNO-III-79-40:on 791113-15,Region 3 Inspectors Conducted Insp of Onsite Radwaste Packaging & Shipping Activities. Insp Included Review of Licensee Implementation of Mods Instituted Per Issues Raised by Sc Dept of Health & Environ | |
| ML20249A884 | 14 December 1977 | PNS-77-049:on 771213,switchboard Operator for Iowa-Illinois Gas & Electric Co Received Telephone Call Re Bomb Threat. Search Met W/Negative Results & No Incidents Occurred.Local Law Enforcement Agencies Advised & FBI Was Notified | |
| ML20207G253 | 7 November 1977 | PNO-77-195:on 771106,transformer That Feeds Power to Canal Spray Pumps Faulted Causing Loss of Normal Offsite Power for Unit 2 & Reactor Trip.Licensee to Perform Engineering Evaluation of Cooldown Effects on Primary Sys | |
| ML20151U429 | 10 May 1977 | PNO-77-077:on 770504,during Shutdown Margin Test on Listed Reactor Refueling Outage,Short Reactor Period Occurred Before Power Increase Terminated by Inserting Control Rods | Shutdown Margin |
| ML20249A861 | 28 April 1977 | PNS-77-019A:on 770426,front Page Article Appeared in Newspaper & Outlined Several Allegations Made by Three ex- Guards Employed at Quad-Cities Site by Pinkerton.States of Il & IA Notified | |
| ML20249A866 | 21 April 1977 | PNS-77-019:on 770421,representative of Licensee Was Informed by Reporter for Moline Daily Dispatch That Story Alleging Security & Radiation Control Deficiencies at Quad Cities Site Will Be Published.No Press Release Planned | |
| ML20236M096 | 26 January 1977 | PNO-77-014:on 770119,inadvertent Misvalving Caused About 240 Gallons of Liquid Radwaste to Be Discharged to Mississippi River from Wrong Radwaste Sample Tank.No Release Limits Exceeded.Licensee Investigating Cause of Events | |
| ML20249B559 | 15 September 1976 | PNO-76-096A:on 760913,Region III Ofc Testified Before State of Il Commerce Commission Hearing in Chicago Re Handling of Radioactive Effluents at Commonwealth Plants.Attorneys for Licensee Objected to NRC Testimony on Listed Grounds | |
| ML20236V057 | 14 October 1975 | PN-75-105:on 751010,insp of Cable Tunnel During Current Maint Outage Identified Oil Dripping Into Cable Tunnel from EHC Sys,Located on Floor Above.Investigation Continuing Into What Corrective Action May Be Necessary | |
| ML20236V139 | 14 October 1975 | PN-75-107:on 751013,UT Testing of 4 Type 304 Stainless Steel Bypass Lines Around Primary Recirculation Pump Discharge Valves Revealed Indication of Crack Approx 1 Long.Licensee Reviewing Corrective Action | |
| ML20236V276 | 2 September 1975 | PN-75-081:licensee Reported That During Surveillance Test, HPCI Turbine Could Not Be Brought Up to Required Speed. Plant Was Shutdown Due to Failure of Backup Safety Components | |
| ML20236V348 | 18 August 1975 | PN-75-072:on 750817,util Notified Chicago Regional Ofc of Insp & Enforcement That Pipe Break Occurred on Down Stream Side of 6 Inch Feedwater FCV in Turbine Bldg.Break Occurred Due to Feedwater Flow Transient | |
| ML20236U707 | 22 May 1975 | PN-75-027:on 750522,following Plant Startup Excessive Power Peaking Observed in Lower Region of Core.Licensee Estimates That Stack Release on Initial Isolation Substantially Below Stack Technical Specification Limits.Addl Analysis Done |