Semantic search
Jump to navigation
Jump to search
| Issue date | Title | Topic | |
|---|---|---|---|
| PNO-IV-98-016, on 980413,operators at River Bend Station Initiated Normal Reactor Shutdown.Plant Shutdown Deemed Necessary After Operators Identified Main Generator Hydrogen Seal Oil Leak at Main Generator Casing | 14 April 1998 | PNO-IV-98-016:on 980413,operators at River Bend Station Initiated Normal Reactor Shutdown.Plant Shutdown Deemed Necessary After Operators Identified Main Generator Hydrogen Seal Oil Leak at Main Generator Casing | |
| PNO-IV-97-043A, on 970724,licensee Entered Forced Shutdown of Reactor,Due to Decreasing Second Stage Pressure on Reactor Recirculation Pump a Seal & Rising Drywell Unidentified Leakage.Inspectors Will Continue to Monitor Startup | 31 July 1997 | PNO-IV-97-043A:on 970724,licensee Entered Forced Shutdown of Reactor,Due to Decreasing Second Stage Pressure on Reactor Recirculation Pump a Seal & Rising Drywell Unidentified Leakage.Inspectors Will Continue to Monitor Startup | |
| PNO-IV-97-043, on 970724,licensee Commenced Reactor Shutdown Because of Decreasing Second Stage Pressure on Reactor Recirculation Pump Seal & Rising Drywell Unidentified Leakage.Licensee Did Not Enter Any Emergency Procedures | 28 July 1997 | PNO-IV-97-043:on 970724,licensee Commenced Reactor Shutdown Because of Decreasing Second Stage Pressure on Reactor Recirculation Pump Seal & Rising Drywell Unidentified Leakage.Licensee Did Not Enter Any Emergency Procedures | |
| PNO-IV-97-026A, on 970507,shutdown Greater than 72 H After Manual Scram Update Made.Workers Removing Fire Seal Matl from Penetration in Turbine Bldg to Run Addl Cable Through Penetration in Accordance W/Authorized Station Mod | 8 May 1997 | PNO-IV-97-026A:on 970507,shutdown Greater than 72 H After Manual Scram Update Made.Workers Removing Fire Seal Matl from Penetration in Turbine Bldg to Run Addl Cable Through Penetration in Accordance W/Authorized Station Mod | Packing leak Pressure Boundary Leakage |
| PNO-IV-97-026, on 970506,shutdown Greater than 72 H After Manual Scram Occurred.Div II & III EDGs Started Automatically & Provided Power to safety-related Loads. Licensee Plans to Commence Outage to Repair | 6 May 1997 | PNO-IV-97-026:on 970506,shutdown Greater than 72 H After Manual Scram Occurred.Div II & III EDGs Started Automatically & Provided Power to safety-related Loads. Licensee Plans to Commence Outage to Repair | |
| PNO-IV-93-023, on 930810,reactor Scram Occurred Due to MSIVs Going Closed.Licensee Initiated Task Team to Review Event & Develop Action Plan to Address Turbine Control Problems. State of Louisiana Informed | 12 August 1993 | PNO-IV-93-023:on 930810,reactor Scram Occurred Due to MSIVs Going Closed.Licensee Initiated Task Team to Review Event & Develop Action Plan to Address Turbine Control Problems. State of Louisiana Informed | |
| PNO-IV-92-042, on 921206,reactor Manually Scrammed to Complete Planned Shutdown.Indications of Degraded Inboard Seal Noted.Outage Scope May Be Increased to Include Recirculation Pump a Seal Package | 7 December 1992 | PNO-IV-92-042:on 921206,reactor Manually Scrammed to Complete Planned Shutdown.Indications of Degraded Inboard Seal Noted.Outage Scope May Be Increased to Include Recirculation Pump a Seal Package | |
| PNO-IV-91-004A, on 910226,industrial Accident Occurred During Removal of Pipe Fittings from Halon Cylinder in Preparation for Weighing Bottle.Hospitalized Individual Developed Blood Pressure Problems & Test Continued to Determine Reason | 1 March 1991 | PNO-IV-91-004A:on 910226,industrial Accident Occurred During Removal of Pipe Fittings from Halon Cylinder in Preparation for Weighing Bottle.Hospitalized Individual Developed Blood Pressure Problems & Test Continued to Determine Reason | |
| PNO-IV-89-049, on 890808,reactor Shutdown to Stop Drywell Leakage.Shutdown to Last 7 Days to Replace Recirculation Pump Seal | 8 August 1989 | PNO-IV-89-049:on 890808,reactor Shutdown to Stop Drywell Leakage.Shutdown to Last 7 Days to Replace Recirculation Pump Seal | |
| PNO-IV-89-043, on 890626,licensed Operator Radiologically Contaminated When Valve Packing Blew Out While Operator Operating Valve.Approx 2,000 Square Ft of Turbine Bldg Contaminated.Valve Repacked & Returned to Normal Position | 27 June 1989 | PNO-IV-89-043:on 890626,licensed Operator Radiologically Contaminated When Valve Packing Blew Out While Operator Operating Valve.Approx 2,000 Square Ft of Turbine Bldg Contaminated.Valve Repacked & Returned to Normal Position | |
| PNO-IV-89-041, on 890623,licensee Synchronized Main Generator to Grid,Completing 101 Day Outage.Refueling Outage Consisted of Replacing Approx One Third of Fuel Elements in Core & Repairs to Svc Water Sys Due to Failed Transformer | 26 June 1989 | PNO-IV-89-041:on 890623,licensee Synchronized Main Generator to Grid,Completing 101 Day Outage.Refueling Outage Consisted of Replacing Approx One Third of Fuel Elements in Core & Repairs to Svc Water Sys Due to Failed Transformer | |
| PNO-IV-89-037, on 890529,nonsafety-related 230-kV Transformer Ruptured & Caught Fire When Energized.Caused by Possible Internal Fault.Licensee & NRC Responding to News Media Inquiries | 30 May 1989 | PNO-IV-89-037:on 890529,nonsafety-related 230-kV Transformer Ruptured & Caught Fire When Energized.Caused by Possible Internal Fault.Licensee & NRC Responding to News Media Inquiries | |
| PNO-IV-89-030A, on 890419,freeze Seal Failed on 6-inch Standby Svc Water Line.Caused by Flooding Portions of Auxiliary Bldg.Svc Water Sys Isolated & RHR Restarted | 24 April 1989 | PNO-IV-89-030A:on 890419,freeze Seal Failed on 6-inch Standby Svc Water Line.Caused by Flooding Portions of Auxiliary Bldg.Svc Water Sys Isolated & RHR Restarted | |
| PNO-IV-89-030, on 890414,freeze Seal on 6-inch Svc Water Line Failed,Resulting in Flooding Portion of Auxiliary Bldg Before Svc Water Sys Could Be Isolated.Lost Electrical Sys Will Be Repaired & Returned to Svc | 20 April 1989 | PNO-IV-89-030:on 890414,freeze Seal on 6-inch Svc Water Line Failed,Resulting in Flooding Portion of Auxiliary Bldg Before Svc Water Sys Could Be Isolated.Lost Electrical Sys Will Be Repaired & Returned to Svc | |
| PNO-IV-89-027, on 890413,stop Work Order Issued to Two Contractors During Refueling Outage Due to Instances Where Contractors Failed to Adequately Implement Licensee Clearance Program.Work to Resume Under New Work Rules | 13 April 1989 | PNO-IV-89-027:on 890413,stop Work Order Issued to Two Contractors During Refueling Outage Due to Instances Where Contractors Failed to Adequately Implement Licensee Clearance Program.Work to Resume Under New Work Rules | Anchor Darling |
| PNO-IV-89-023, on 890327,loss of Shutdown Cooling Occurred for 12 Minutes While Tagging Out 120-volt Dc Breakers.On 890329,loss of Shutdown Cooling Occurred While Performing Work in Div I Transmitter Cabinet in Control Room | 30 March 1989 | PNO-IV-89-023:on 890327,loss of Shutdown Cooling Occurred for 12 Minutes While Tagging Out 120-volt Dc Breakers.On 890329,loss of Shutdown Cooling Occurred While Performing Work in Div I Transmitter Cabinet in Control Room | |
| PNO-IV-89-021, on 890324,stop-work Order Issued to Contractor (S&W).Contract Mechanics Were to Conduct Planned Pipe Cut on Portion of RHR Sys Train a Test Return Line to Suppression Pool.Rhr B Inadvertently Cut.On 890327,order to Be Lifted | 24 March 1989 | PNO-IV-89-021:on 890324,stop-work Order Issued to Contractor (S&W).Contract Mechanics Were to Conduct Planned Pipe Cut on Portion of RHR Sys Train a Test Return Line to Suppression Pool.Rhr B Inadvertently Cut.On 890327,order to Be Lifted | |
| PNO-IV-89-014, on 890301,util Announced Reorganization of Physical Security Program at Plant Involving Util Security Dept & Burns Intl.Announced Changes Resulted from Util & Burns Intl Audits of Operations at Site | 2 March 1989 | PNO-IV-89-014:on 890301,util Announced Reorganization of Physical Security Program at Plant Involving Util Security Dept & Burns Intl.Announced Changes Resulted from Util & Burns Intl Audits of Operations at Site | |
| PNO-IV-88-098, on 881221,oil Filled Breaker in Gsu Substation Caught Fire Resulting in Complete Loss of Substation | 22 December 1988 | PNO-IV-88-098:on 881221,oil Filled Breaker in Gsu Substation Caught Fire Resulting in Complete Loss of Substation | |
| PNO-IV-88-081, on 880930,two of Eight Solenoid Operated Valves Failed During Test of MSIVs Per Info Notice 88-043. Reactor Shutdown Commenced from 4 to 7 Days | 3 October 1988 | PNO-IV-88-081:on 880930,two of Eight Solenoid Operated Valves Failed During Test of MSIVs Per Info Notice 88-043. Reactor Shutdown Commenced from 4 to 7 Days | |
| PNO-IV-88-075, on 880906,reactor Scrammed from 100% Power. Caused by Main Generator Trip Due to Loss of Normal Station Transformer,Probably Caused by Cat Crawling Into Transformer.Noue Declared Because HPCS & RCIC Sys Initiated | 6 September 1988 | PNO-IV-88-075:on 880906,reactor Scrammed from 100% Power. Caused by Main Generator Trip Due to Loss of Normal Station Transformer,Probably Caused by Cat Crawling Into Transformer.Noue Declared Because HPCS & RCIC Sys Initiated | |
| PNO-IV-88-070, on 880825,reactor Scrammed Due Trip of Main Turbine After Brush Failure of Main Generator Exciter. Although Water Level Has Not Dropped to Level 2,HPCS Pump Did Start & May Have Injected.Power Restored to Div III Bus | 25 August 1988 | PNO-IV-88-070:on 880825,reactor Scrammed Due Trip of Main Turbine After Brush Failure of Main Generator Exciter. Although Water Level Has Not Dropped to Level 2,HPCS Pump Did Start & May Have Injected.Power Restored to Div III Bus | Reactor Vessel Water Level |
| PNO-IV-88-013A, on 880221,reactor Scram Occurred During Shell Warming of Main Turbine.Caution Added in Turbine Startup Procedure Re Possibility of Reactor Scram Because of Turbine First Stop Pressure During Shell Warming | 22 February 1988 | PNO-IV-88-013A:on 880221,reactor Scram Occurred During Shell Warming of Main Turbine.Caution Added in Turbine Startup Procedure Re Possibility of Reactor Scram Because of Turbine First Stop Pressure During Shell Warming | |
| PNO-IV-88-013, on 880219,reactor Circulation Pump Motor Tripped on over-current Condition.Caused by Low Megger Readings to Pump Motor.Orderly Plant Shutdown Continued W/ Plans to Go to Cold Shutdown for Necessary Repairs | 19 February 1988 | PNO-IV-88-013:on 880219,reactor Circulation Pump Motor Tripped on over-current Condition.Caused by Low Megger Readings to Pump Motor.Orderly Plant Shutdown Continued W/ Plans to Go to Cold Shutdown for Necessary Repairs | |
| PNO-IV-87-057, on 871022 & 26,temporary Worker Alarmed Portal Monitor While Exiting Radiation Control Area.Survey Identified Co-60 Particle on Workers Sleeve.Shirt Had Been Taken Home,Washed & Worn Again.Nothing Found at Residence | 30 October 1987 | PNO-IV-87-057:on 871022 & 26,temporary Worker Alarmed Portal Monitor While Exiting Radiation Control Area.Survey Identified Co-60 Particle on Workers Sleeve.Shirt Had Been Taken Home,Washed & Worn Again.Nothing Found at Residence | |
| PNO-IV-87-048, on 870920,upper Fuel Pool Partially Drained. Caused by Attempt to Increase Water Level During Refueling. Region Dispatching Supervisor to Site to Coordinate NRC Insp of Licensee Actions.Licensee Also Conducting Indepth Review | 21 September 1987 | PNO-IV-87-048:on 870920,upper Fuel Pool Partially Drained. Caused by Attempt to Increase Water Level During Refueling. Region Dispatching Supervisor to Site to Coordinate NRC Insp of Licensee Actions.Licensee Also Conducting Indepth Review | |
| PNO-IV-87-029, on 870618,151 Days of Continuous Operation Terminated Due to Reactor Scram on High Water Level in Reactor Vessel.Licensee Investigating Cause.Plant to Be Shut Down for 7 Days for Maint Activities | 18 June 1987 | PNO-IV-87-029:on 870618,151 Days of Continuous Operation Terminated Due to Reactor Scram on High Water Level in Reactor Vessel.Licensee Investigating Cause.Plant to Be Shut Down for 7 Days for Maint Activities | |
| PNO-IV-87-016, on 870410,S&W QC Inspector Fell While Performing Fire Barrier Insp in Fuel Bldg.Inspector Not Contaminated But Received Broken Tailbone & Left Elbow | 13 April 1987 | PNO-IV-87-016:on 870410,S&W QC Inspector Fell While Performing Fire Barrier Insp in Fuel Bldg.Inspector Not Contaminated But Received Broken Tailbone & Left Elbow | Fire Barrier |
| PNO-IV-86-023A, on 860708,gasket Failure Resulted in Steam Leak That Led to Reactor Scram.Caused by Inappropriate Gasket Matl & Improper Torque.Moisture Separator Reheater Drain Tank Manway Gaskets Replaced | 10 July 1986 | PNO-IV-86-023A:on 860708,gasket Failure Resulted in Steam Leak That Led to Reactor Scram.Caused by Inappropriate Gasket Matl & Improper Torque.Moisture Separator Reheater Drain Tank Manway Gaskets Replaced | |
| PNO-IV-86-023, on 860708,facility Experienced Reactor Scram Due to MSIV Closure at 65% Power.Isolation Initiated Due to Turbine Bldg High Temp Resulting from Manway Gasket Failure. Personnel Evacuated | 9 July 1986 | PNO-IV-86-023:on 860708,facility Experienced Reactor Scram Due to MSIV Closure at 65% Power.Isolation Initiated Due to Turbine Bldg High Temp Resulting from Manway Gasket Failure. Personnel Evacuated | |
| PNO-IV-86-021, on 860626,Hurricane Bonnie Came Ashore Near Port Arthur,Tx on Louisiana/Texas Border.Bonnie Described as Minimal Hurricane.Hurricane Protection Procedures Implemented as Required | 26 June 1986 | PNO-IV-86-021:on 860626,Hurricane Bonnie Came Ashore Near Port Arthur,Tx on Louisiana/Texas Border.Bonnie Described as Minimal Hurricane.Hurricane Protection Procedures Implemented as Required | |
| PNO-IV-86-007, on 860301,reactor Tripped from 38% Power. Caused by Failure of Nonvital Electrical Transformer. Reactor Restarted.Resident Inspectors Monitoring Licensee Activities | 3 March 1986 | PNO-IV-86-007:on 860301,reactor Tripped from 38% Power. Caused by Failure of Nonvital Electrical Transformer. Reactor Restarted.Resident Inspectors Monitoring Licensee Activities | Reactor Vessel Water Level |
| PNO-IV-86-003, on 860107,fire Prevention Deluge Sys Inadvertently Actuated in Auxiliary Bldg,Wetting Nonvital 480-volt Ac Load Ctr.Unit May Remain Shut Down in Excess of 2 Days During Evaluation & Drying Out of Load Ctr | 8 January 1986 | PNO-IV-86-003:on 860107,fire Prevention Deluge Sys Inadvertently Actuated in Auxiliary Bldg,Wetting Nonvital 480-volt Ac Load Ctr.Unit May Remain Shut Down in Excess of 2 Days During Evaluation & Drying Out of Load Ctr | |
| PNO-IV-86-001A, on 860101,loss of Offsite Ac Power Experienced.Caused by Maloperation of Redundant Sys Used to Control Offsite Power Circuit Breakers.Tone Sys Circuit Problem Being Corrected by Licensee | 3 January 1986 | PNO-IV-86-001A:on 860101,loss of Offsite Ac Power Experienced.Caused by Maloperation of Redundant Sys Used to Control Offsite Power Circuit Breakers.Tone Sys Circuit Problem Being Corrected by Licensee | Offsite Circuit |
| PNO-IV-85-062, on 851206,plant Offgas Sys Experienced Transient Upon Automatic Switchover from Dryer a to Dryer C. Caused by Failure of Discharge Valve on Dryer C to Open Resulting in Back Pressure Blowing Out Water Loop Seals | 6 December 1985 | PNO-IV-85-062:on 851206,plant Offgas Sys Experienced Transient Upon Automatic Switchover from Dryer a to Dryer C. Caused by Failure of Discharge Valve on Dryer C to Open Resulting in Back Pressure Blowing Out Water Loop Seals | Loop seal |
| PNO-IV-85-058A, on 851118,administrative 5% Thermal Power Limit of Section 2c of License NPF-40 Exceeded.Caused by Shift Supervisor Misunderstanding Commission Vote on Full Power License.Shift Supervisor Disciplined | 19 November 1985 | PNO-IV-85-058A:on 851118,administrative 5% Thermal Power Limit of Section 2c of License NPF-40 Exceeded.Caused by Shift Supervisor Misunderstanding Commission Vote on Full Power License.Shift Supervisor Disciplined | |
| PNO-IV-85-058, on 851118,indicated License Limit of 5% of Rated Thermal Power Exceeded for 1 H.Arpms Apparently Calibr to Read High.Actual Thermal Power Probably Did Not Exceed Limit.Evaluation Initiated | 18 November 1985 | PNO-IV-85-058:on 851118,indicated License Limit of 5% of Rated Thermal Power Exceeded for 1 H.Arpms Apparently Calibr to Read High.Actual Thermal Power Probably Did Not Exceed Limit.Evaluation Initiated | |
| PNO-IV-85-055, on 851031,initial Criticality Achieved. Criticality Occurred at Predicted Point in Rod Withdrawal Sequence | 31 October 1985 | PNO-IV-85-055:on 851031,initial Criticality Achieved. Criticality Occurred at Predicted Point in Rod Withdrawal Sequence | |
| PNO-IV-85-046, on 850829,util Received Low Power License. Fuel Load Will Not Start Until Potential for Heavy Weather from Hurricane Elena Resolved.Util Estimates Actual Fuel Movement Will Begin on 850830 | 30 August 1985 | PNO-IV-85-046:on 850829,util Received Low Power License. Fuel Load Will Not Start Until Potential for Heavy Weather from Hurricane Elena Resolved.Util Estimates Actual Fuel Movement Will Begin on 850830 | |
| PNO-IV-85-038, on 850801,contractor Employee Attempted to Enter Protected Area W/Handgun in Purse.Employee Stated That Gun for Personal Protection Offsite.Site Access Denied & Contractor Employee Discharged | 1 August 1985 | PNO-IV-85-038:on 850801,contractor Employee Attempted to Enter Protected Area W/Handgun in Purse.Employee Stated That Gun for Personal Protection Offsite.Site Access Denied & Contractor Employee Discharged | |
| ML20207G241 | 4 November 1977 | PNO-77-194:on 771024-28,significant Deficiencies Identified in Implementation of QA Program.Stop Work Order Was Issued by Gulf States Util to Trans America Steel,Which Applied to sub-suppliers Including Florida Steel Co |