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Issue date | Title | Topic | |
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PNO-III-80-032, on 800219,correspondents from ABC 20/20 Program Will Interview Regional Director & Other Members Re NRC Investigation Into Allegations of Falsification of Qualification Records of Personnel Doing Design Work | 19 February 1980 | PNO-III-80-032:on 800219,correspondents from ABC 20/20 Program Will Interview Regional Director & Other Members Re NRC Investigation Into Allegations of Falsification of Qualification Records of Personnel Doing Design Work | |
PNO-III-80-054, on 800318,licensee Informed Region 3 That Channel 7 News in Detroit,Mi Plans to Televise 800321 Interview W/Site Contractor Employees Re Allegations of Improper Receipt Insp of Small Bore Pipe | 19 March 1980 | PNO-III-80-054 :on 800318,licensee Informed Region 3 That Channel 7 News in Detroit,Mi Plans to Televise 800321 Interview W/Site Contractor Employees Re Allegations of Improper Receipt Insp of Small Bore Pipe | |
PNO-III-85-050, on 850621,initial Criticality Achieved within Two Steps of Estimated Critical Position.Control Rods Withdrawn to Criticality | 21 June 1985 | PNO-III-85-050:on 850621,initial Criticality Achieved within Two Steps of Estimated Critical Position.Control Rods Withdrawn to Criticality | |
PNO-III-85-055, on 850709,reactor Tripped on Low Water Level. Caused by Operator Inattentiveness to Level Indicator.No ECCS Injection Occurred | 10 July 1985 | PNO-III-85-055:on 850709,reactor Tripped on Low Water Level. Caused by Operator Inattentiveness to Level Indicator.No ECCS Injection Occurred | Reactor Vessel Water Level |
PNO-III-85-058, on 850702,reactor Brought to Criticality W/O Shift Supervisor Realizing Incident.Caused by Reactor Operator Failing to Follow Proper Procedures for Moving Control Rods in Full Out Position.Incident Being Reviewed | 15 July 1985 | PNO-III-85-058:on 850702,reactor Brought to Criticality W/O Shift Supervisor Realizing Incident.Caused by Reactor Operator Failing to Follow Proper Procedures for Moving Control Rods in Full Out Position.Incident Being Reviewed | |
PNO-III-85-058A, on 850716,confirmatory Action Ltr Issued Documenting Util Commitment to Restrict Power Level to 5%, Pending Completion of Evaluation of 850702 Inadvertent Criticality Incident.Investigation Continuing | 17 July 1985 | PNO-III-85-058A:on 850716,confirmatory Action Ltr Issued Documenting Util Commitment to Restrict Power Level to 5%, Pending Completion of Evaluation of 850702 Inadvertent Criticality Incident.Investigation Continuing | |
PNO-III-85-063, on 850723,reactor Shut Down to Repair Thrust Bearing Housing on Feedwater Pump,Damaged During 850722 Demonstration Testing.Further Exam Underway | 24 July 1985 | PNO-III-85-063:on 850723,reactor Shut Down to Repair Thrust Bearing Housing on Feedwater Pump,Damaged During 850722 Demonstration Testing.Further Exam Underway | |
PNO-III-85-063A, investigation Concluded That Vibration in South Reactor Feeder Pump Turbine,Plus Inadequate Securing of Outboard Bearing Cap Caused Turbine Failure.Study of Problem Continuing | 5 August 1985 | PNO-III-85-063A:investigation Concluded That Vibration in South Reactor Feeder Pump Turbine,Plus Inadequate Securing of Outboard Bearing Cap Caused Turbine Failure.Study of Problem Continuing | |
PNO-III-85-066, on 850729,low Svc Water Flow Alarm Received During Surveillance Testing of Div I Diesel Generator. Generator Manually Tripped.Caused by Closed Bypass Valve in Line Returning Water to Reservoir.Investigation Underway | 30 July 1985 | PNO-III-85-066:on 850729,low Svc Water Flow Alarm Received During Surveillance Testing of Div I Diesel Generator. Generator Manually Tripped.Caused by Closed Bypass Valve in Line Returning Water to Reservoir.Investigation Underway | |
PNO-III-85-067, on 850730,licensee Announced That Low Power Testing Would Not Resume Until Various Equipment & Procedural Difficulties Resolved.Shutdown Caused by Premature Criticality on 850702 | 31 July 1985 | PNO-III-85-067:on 850730,licensee Announced That Low Power Testing Would Not Resume Until Various Equipment & Procedural Difficulties Resolved.Shutdown Caused by Premature Criticality on 850702 | |
PNO-III-85-067A, on 850809,licensee Will Resume Low Power Testing.Region III Approved Util Corrective Action Program Submitted on 850807,in Response to 850702 Premature Criticality.Plant Still Restricted to 5% Power | 9 August 1985 | PNO-III-85-067A:on 850809,licensee Will Resume Low Power Testing.Region III Approved Util Corrective Action Program Submitted on 850807,in Response to 850702 Premature Criticality.Plant Still Restricted to 5% Power | |
PNO-III-85-070, on 850806,Monroe County Board of Commissioners Requested Full Investigation of Operational Procedures & Employee Credentials Due to 850702 Unplanned Criticality Not Reported to NRC Until 850715 | 8 August 1985 | PNO-III-85-070:on 850806,Monroe County Board of Commissioners Requested Full Investigation of Operational Procedures & Employee Credentials Due to 850702 Unplanned Criticality Not Reported to NRC Until 850715 | |
PNO-III-85-076, on 850825,recirculation Pump B Problem Resulted in Brief Power Increase from 2.9 to 8.8%.Reactor Operators Tripped Pump After Failing to Reduce Pump Speed. Testing Disclosed No Problems W/Speed Control Circuitry | 26 August 1985 | PNO-III-85-076:on 850825,recirculation Pump B Problem Resulted in Brief Power Increase from 2.9 to 8.8%.Reactor Operators Tripped Pump After Failing to Reduce Pump Speed. Testing Disclosed No Problems W/Speed Control Circuitry | |
PNO-III-85-077, on 850904,leak Rate Test Connection Valve Installed on 850620 in Containment Sampling Sys Found Open & Attached Line Uncapped,Due to Unrevised Containment Valve Lineup Procedure.Valve Closed | 5 September 1985 | PNO-III-85-077:on 850904,leak Rate Test Connection Valve Installed on 850620 in Containment Sampling Sys Found Open & Attached Line Uncapped,Due to Unrevised Containment Valve Lineup Procedure.Valve Closed | |
PNO-III-85-083, on 850917,leak Observed in East Steam Bypass Line.Transient Power Spike Observed While Attempting to Isolate Line & Open Valve.Cause of Transient Not Determined. Cracked Piping Around Valve Under Investigation | 19 September 1985 | PNO-III-85-083:on 850917,leak Observed in East Steam Bypass Line.Transient Power Spike Observed While Attempting to Isolate Line & Open Valve.Cause of Transient Not Determined. Cracked Piping Around Valve Under Investigation | |
PNO-III-85-095, on 851113,unusual Noise & Vibration Observed in Emergency Diesel Generator.Operator Manually Tripped Diesel.Preliminary Evaluation Indicates Damage to Connecting Rod Bearing for Upper Crankshaft & Upper Piston Skirt | 14 November 1985 | PNO-III-85-095:on 851113,unusual Noise & Vibration Observed in Emergency Diesel Generator.Operator Manually Tripped Diesel.Preliminary Evaluation Indicates Damage to Connecting Rod Bearing for Upper Crankshaft & Upper Piston Skirt | |
PNO-III-85-095A, on 851201,during Reassembly of Steam Generator 13,discontinuities Observed on Three Connecting Rod Journals.Vendor Will Supply Documentation.Investigation Continuing.Startup Projected for 851211 | 3 December 1985 | PNO-III-85-095A:on 851201,during Reassembly of Steam Generator 13,discontinuities Observed on Three Connecting Rod Journals.Vendor Will Supply Documentation.Investigation Continuing.Startup Projected for 851211 | |
PNO-III-85-095B, during Insp of Emergency Diesel Generator 11,degradation of Six Upper Crankshaft Bearings Noted.Cause Undetermined.Findings & Relation of Findings to Other Diesel Generators Being Evaluated | 4 December 1985 | PNO-III-85-095B:during Insp of Emergency Diesel Generator 11,degradation of Six Upper Crankshaft Bearings Noted.Cause Undetermined.Findings & Relation of Findings to Other Diesel Generators Being Evaluated | |
PNO-III-85-095C, on 851212,diesel Generator 14 Tripped on Low Lube Oil Pressure During Test Run.Bearing Failure & Erratic Behavior of Svc Water Pump Under Investigation as Possible Causes.Generator Will Be Monitored | 12 December 1985 | PNO-III-85-095C:on 851212,diesel Generator 14 Tripped on Low Lube Oil Pressure During Test Run.Bearing Failure & Erratic Behavior of Svc Water Pump Under Investigation as Possible Causes.Generator Will Be Monitored | |
PNO-III-85-095D, on 851113,bearing Damage Occurred to Diesel Generators 13,11 & 14.Caused by Insufficient break-in Period.Bearing Replacement Required for Diesel Generator 11. Decrease in Lubricating Oil Viscosity Noted for 12 & 14 | 24 December 1985 | PNO-III-85-095D:on 851113,bearing Damage Occurred to Diesel Generators 13,11 & 14.Caused by Insufficient break-in Period.Bearing Replacement Required for Diesel Generator 11. Decrease in Lubricating Oil Viscosity Noted for 12 & 14 | |
PNO-III-85-098, on 851117,between 17,000 & 35,000 Gallons of Radioactive Water Released from Ruptured Seam in Condensate Storage Tank.Water Radioactivity Less than 0.4% of Regulatory Limit for Offsite Release | 18 November 1985 | PNO-III-85-098:on 851117,between 17,000 & 35,000 Gallons of Radioactive Water Released from Ruptured Seam in Condensate Storage Tank.Water Radioactivity Less than 0.4% of Regulatory Limit for Offsite Release | |
PNO-III-86-004, RHR Pump Motor Removed Offsite for Testing & Insp Following 851125 Failure Due to Mfg Defect.Pump Replaced.Generic Implications Under Investigation | 23 January 1986 | PNO-III-86-004:RHR Pump Motor Removed Offsite for Testing & Insp Following 851125 Failure Due to Mfg Defect.Pump Replaced.Generic Implications Under Investigation | |
PNO-III-86-008, on 860125,roving Fire Watch Discovered Burning Insulation on Exhaust Line of Emergency Diesel Generator 13.Caused by Oil Soaking Insulation During Prior Disassembly & Oil Flushing.Fire Extinguished.Leak Repaired | 27 January 1986 | PNO-III-86-008:on 860125,roving Fire Watch Discovered Burning Insulation on Exhaust Line of Emergency Diesel Generator 13.Caused by Oil Soaking Insulation During Prior Disassembly & Oil Flushing.Fire Extinguished.Leak Repaired | Fire Watch |
PNO-III-86-024, on 860317,backup Reactor Protection Sys Trip Breaker Failed to Trip During Bus a Transfer from Primary Electrical Supply.Caused by Repeated Testing.Manual Scram Inserted.Investigation Underway | 17 March 1986 | PNO-III-86-024:on 860317,backup Reactor Protection Sys Trip Breaker Failed to Trip During Bus a Transfer from Primary Electrical Supply.Caused by Repeated Testing.Manual Scram Inserted.Investigation Underway | |
PNO-III-86-037, on 860418,util Announced Extension of Outage to mid-Jul 1986.Licensee Review of Reevaluation of Design Work Performed on Concrete Embedments & Pipe Supports Will Be Completed by 860501 | 18 April 1986 | PNO-III-86-037:on 860418,util Announced Extension of Outage to mid-Jul 1986.Licensee Review of Reevaluation of Design Work Performed on Concrete Embedments & Pipe Supports Will Be Completed by 860501 | |
PNO-III-86-067, on 860708,Monroe County Board of Commissioners Adopted Resolution,By 5 to 3 Vote,Requesting Congressman Dingell to Hold Hearings on Adequacy of GE Mark 1 Containment | 9 July 1986 | PNO-III-86-067:on 860708,Monroe County Board of Commissioners Adopted Resolution,By 5 to 3 Vote,Requesting Congressman Dingell to Hold Hearings on Adequacy of GE Mark 1 Containment | |
PNO-III-86-069, on 860715,full Scram & ECCS Actuation Occurred During Heatup of Reactor Pressure Vessel.Approx 10 Gallons of Water Injected Into Vessel.Caused by Pressure Spike from Flow Perturbation.State of Mi Informed | 16 July 1986 | PNO-III-86-069:on 860715,full Scram & ECCS Actuation Occurred During Heatup of Reactor Pressure Vessel.Approx 10 Gallons of Water Injected Into Vessel.Caused by Pressure Spike from Flow Perturbation.State of Mi Informed | Hydrostatic |
PNO-III-86-074, on 860731,licensee Authorized to Resume Operation Up to 5% Power.Further NRC Authorization Required for Higher Power Levels.Startup Will Begin on 860801 | 1 August 1986 | PNO-III-86-074:on 860731,licensee Authorized to Resume Operation Up to 5% Power.Further NRC Authorization Required for Higher Power Levels.Startup Will Begin on 860801 | |
PNO-III-86-074A, on 860804,start Up Initiated W/Removal of Control Rods.Activities Postponed from 860801 for Repair of Bypass Valve.Problem W/Position Indicators for MSIVs Also Corrected | 4 August 1986 | PNO-III-86-074A:on 860804,start Up Initiated W/Removal of Control Rods.Activities Postponed from 860801 for Repair of Bypass Valve.Problem W/Position Indicators for MSIVs Also Corrected | |
PNO-III-86-077, on 860806,fire & Electric Overload Alarm Received.Fire Located in Cubicle Containing Power Supply Breaker.Cause Unknown.Fire Extinguished.Power Supply Breaker & Affected Motor Control Ctr Inspected | 7 August 1986 | PNO-III-86-077:on 860806,fire & Electric Overload Alarm Received.Fire Located in Cubicle Containing Power Supply Breaker.Cause Unknown.Fire Extinguished.Power Supply Breaker & Affected Motor Control Ctr Inspected | |
PNO-III-86-083A, on 860828,nine NRC Licensing Examiners Completed Simulator Portion of Requalification Exams.All Nine Passed Exams.Licensee Requalification Program for Licensed Operators Acceptable | 29 August 1986 | PNO-III-86-083A:on 860828,nine NRC Licensing Examiners Completed Simulator Portion of Requalification Exams.All Nine Passed Exams.Licensee Requalification Program for Licensed Operators Acceptable | |
PNO-III-86-088, on 860902,normal Plant Shutdown Began for Repair of Malfunctioning torus-to-reactor Bldg Vacuum Breaker Isolation Valve.Repair Effort Expected to Take More than 48 H.Addl Maint Will Be Conducted During Shutdown | 3 September 1986 | PNO-III-86-088:on 860902,normal Plant Shutdown Began for Repair of Malfunctioning torus-to-reactor Bldg Vacuum Breaker Isolation Valve.Repair Effort Expected to Take More than 48 H.Addl Maint Will Be Conducted During Shutdown | |
PNO-III-86-097, on 860912,authorization Granted to Increase Power Level to 20%.Power Escalation Expected This Wk.Power Increase Previously Recommended for 860910 | 15 September 1986 | PNO-III-86-097:on 860912,authorization Granted to Increase Power Level to 20%.Power Escalation Expected This Wk.Power Increase Previously Recommended for 860910 | |
PNO-III-86-106, on 860926,suspicious Device Found on Hatch Cover on Fourth Floor of Auxiliary Bldg.Bomb Disposal Specialists Investigated Device & Found Device Empty.Device Was Piece of Pipe Placed on Hatch by Maint Personnel | 26 September 1986 | PNO-III-86-106:on 860926,suspicious Device Found on Hatch Cover on Fourth Floor of Auxiliary Bldg.Bomb Disposal Specialists Investigated Device & Found Device Empty.Device Was Piece of Pipe Placed on Hatch by Maint Personnel | |
PNO-III-86-111, on 861005,reactor Manually Scrammed from 15% Power Due to Partial Loss of Vacuum in Condenser Causing Temp Increase.Also,On 861005,during Test of Water Level Transmitters,Pressure Spike Inadvertently Introduced | 8 October 1986 | PNO-III-86-111:on 861005,reactor Manually Scrammed from 15% Power Due to Partial Loss of Vacuum in Condenser Causing Temp Increase.Also,On 861005,during Test of Water Level Transmitters,Pressure Spike Inadvertently Introduced | |
PNO-III-86-112, on 861009,problem Occurred W/Rod Sequence Control Sys,Hindering Normal Manual Insertion of Control Rods.Caused by Low Voltage in Normal Power Supply.Evaluation of Problem Underway | 10 October 1986 | PNO-III-86-112:on 861009,problem Occurred W/Rod Sequence Control Sys,Hindering Normal Manual Insertion of Control Rods.Caused by Low Voltage in Normal Power Supply.Evaluation of Problem Underway | |
PNO-III-86-118, on 861023,licensee Demonstrated Remote Shutdown Capability.Demonstration Successful W/All Equipment Operating as Designed.Plant Control Returned to Control Room After 45 Minutes.Plant in Cold Shutdown for Scheduled Maint | 24 October 1986 | PNO-III-86-118:on 861023,licensee Demonstrated Remote Shutdown Capability.Demonstration Successful W/All Equipment Operating as Designed.Plant Control Returned to Control Room After 45 Minutes.Plant in Cold Shutdown for Scheduled Maint | |
PNO-III-86-125, on 861031,operator Inadvertently Skipped Step in Rod Withdrawal Procedure & Pulled Next Rod in Sequence Out One Notch (6 Inches).Rod Reinserted to Proper Position & Correct Rod Sequence Restored | 31 October 1986 | PNO-III-86-125:on 861031,operator Inadvertently Skipped Step in Rod Withdrawal Procedure & Pulled Next Rod in Sequence Out One Notch (6 Inches).Rod Reinserted to Proper Position & Correct Rod Sequence Restored | |
PNO-III-86-131, on 861107,unit Shut Down Due to Air Leakage Into Main Condenser.Caused by Leakage in Thermal Expansion Joint Between One Low Pressure Turbine & Main Condenser. Licensee Plans to Inspect Remaining Joints | 10 November 1986 | PNO-III-86-131:on 861107,unit Shut Down Due to Air Leakage Into Main Condenser.Caused by Leakage in Thermal Expansion Joint Between One Low Pressure Turbine & Main Condenser. Licensee Plans to Inspect Remaining Joints | |
PNO-III-86-131A, 4-ft Tear Identified in North Condenser Boot During Repairs to Condenser Thermal Expansion Boots.Caused by Structural Damage to Condenser Supports.North & Ctr Condenser Thermal Expansion Boots Replaced | 14 November 1986 | PNO-III-86-131A:4-ft Tear Identified in North Condenser Boot During Repairs to Condenser Thermal Expansion Boots.Caused by Structural Damage to Condenser Supports.North & Ctr Condenser Thermal Expansion Boots Replaced | |
PNO-III-86-136, on 861117,283,000 Gallons of Water Lost from Condensate Storage Tank Following Maint on Valve.Caused by Breaking of Weld to HPCI Test Return Pipe.Radwaste Spill Occurred During Transfer of Spilled Water | 18 November 1986 | PNO-III-86-136:on 861117,283,000 Gallons of Water Lost from Condensate Storage Tank Following Maint on Valve.Caused by Breaking of Weld to HPCI Test Return Pipe.Radwaste Spill Occurred During Transfer of Spilled Water | |
PNO-III-86-148, on 861217,guns,knives,ammunition & Marijuana Found in Possession of Truck Driver Seeking Entrance to Protected Area.Driver Denied Access & Arrested by State Police.Driver Involved W/Paramilitary Organization for Hire | 17 December 1986 | PNO-III-86-148:on 861217,guns,knives,ammunition & Marijuana Found in Possession of Truck Driver Seeking Entrance to Protected Area.Driver Denied Access & Arrested by State Police.Driver Involved W/Paramilitary Organization for Hire | |
PNO-III-87-001, on 870102,three Small Steam Leaks Discovered on Two of Four Main Steam Lines.During Power Reduction for Shutdown,Main Turbine Tripped on 18% Power.Cause Under Investigation.Instrument Lines Will Be Temporarily Plugged | 2 January 1987 | PNO-III-87-001:on 870102,three Small Steam Leaks Discovered on Two of Four Main Steam Lines.During Power Reduction for Shutdown,Main Turbine Tripped on 18% Power.Cause Under Investigation.Instrument Lines Will Be Temporarily Plugged | |
PNO-III-87-001A, on 870102,licensee Discovered Three Small Steam Leaks on Two of Four Main Steam Lines & on 870105, Following Repairs & Return of Steam Lines to Svc,Cracked Weld on Instrument Line/Valve Connection Found | 6 January 1987 | PNO-III-87-001A:on 870102,licensee Discovered Three Small Steam Leaks on Two of Four Main Steam Lines & on 870105, Following Repairs & Return of Steam Lines to Svc,Cracked Weld on Instrument Line/Valve Connection Found | |
PNO-III-87-001B, on 870108,normal Plant Shutdown Commenced to Repair Series of Small Steam Leaks on Main Steam Piping Attachments.Leak Located on Main Turbine Stop Valve 3 & Can Only Be Isolated by Closing MSIVs | 8 January 1987 | PNO-III-87-001B:on 870108,normal Plant Shutdown Commenced to Repair Series of Small Steam Leaks on Main Steam Piping Attachments.Leak Located on Main Turbine Stop Valve 3 & Can Only Be Isolated by Closing MSIVs | |
PNO-III-87-009, on 870114,Safe Energy Commission of Michigan (Sec) Announced Results of Investigation Into Licensee Safeteam Program.Rept Contends Safeteam Program Failure.Sec Plans to File 2.206 Petition W/Nrc | 14 January 1987 | PNO-III-87-009:on 870114,Safe Energy Commission of Michigan (Sec) Announced Results of Investigation Into Licensee Safeteam Program.Rept Contends Safeteam Program Failure.Sec Plans to File 2.206 Petition W/Nrc | |
PNO-III-87-012, on 870123,licensee Informed Region That NRC- Licensed Nuclear Supervising Operator Suspended on 870122 Due to Positive Testing in Random Drug Screening on 870115. No Evidence of Error Found in Performance | 26 January 1987 | PNO-III-87-012:on 870123,licensee Informed Region That NRC- Licensed Nuclear Supervising Operator Suspended on 870122 Due to Positive Testing in Random Drug Screening on 870115. No Evidence of Error Found in Performance | Fitness for Duty |
PNO-III-87-016, on 870129,small Steam Leak Discovered in Spare Instrument Line Attached to Body of West Main Steam Bypass Valve.Caused by Crack in Weld Attaching Valve to Instrument Line.Valves Cut Off & Instrument Lines Plugged | 30 January 1987 | PNO-III-87-016:on 870129,small Steam Leak Discovered in Spare Instrument Line Attached to Body of West Main Steam Bypass Valve.Caused by Crack in Weld Attaching Valve to Instrument Line.Valves Cut Off & Instrument Lines Plugged | Flow Induced Vibration |
PNO-III-87-022, on 870216,Region III Authorized Facility to Exceed Previous 20% Power Limitation & Continue Testing Activities Up to 50% Power.Power Escalation Expected Pending Restoration of HPCI to Operable Status | 17 February 1987 | PNO-III-87-022:on 870216,Region III Authorized Facility to Exceed Previous 20% Power Limitation & Continue Testing Activities Up to 50% Power.Power Escalation Expected Pending Restoration of HPCI to Operable Status | |
PNO-III-87-022A, on 870308,plant Reached NRC Imposed Limit of 50% Power.Licensee Will Operate Plant at Approx 50% While Conducting Test on HPCI Sys,Rwcu Sys & Safety Relief Valves. Util Also Plans to Conduct Loss of Offsite Power Test | 9 March 1987 | PNO-III-87-022A:on 870308,plant Reached NRC Imposed Limit of 50% Power.Licensee Will Operate Plant at Approx 50% While Conducting Test on HPCI Sys,Rwcu Sys & Safety Relief Valves. Util Also Plans to Conduct Loss of Offsite Power Test |