PNO-III-87-076, on 870524,reactor Scrammed When Feedwater Regulating Valve Failed in Open Position Resulting in Automatic Scramming of Aprm.Licensee Will Investigate Cause of Valve Failure & to Perform Maint Activities
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| ML20214L613 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 05/26/1987 |
| From: | Forney W, Knop R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-87-076, PNO-III-87-76, NUDOCS 8706010026 | |
| Download: ML20214L613 (1) | |
Similar Documents at Clinton | |
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Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-III-99-028, on 990506,reactor Achieved Criticality Starting Up from Sept 1995 Outage.Region III Maintained Continuous Insp Coverage Throughout Restart Period.Info in Preliminary Notification Reviewed1999-05-28028 May 1999
[Table view]PNO-III-99-028:on 990506,reactor Achieved Criticality Starting Up from Sept 1995 Outage.Region III Maintained Continuous Insp Coverage Throughout Restart Period.Info in Preliminary Notification Reviewed PNO-III-99-002, on 990106,partial Loss of Offsite Power Occurred.Power Lost to Rhrs,Normal Shutdown Cooling Sys & in Svc at Time of Event.Plant Three EDGs Started Automatically & Provided Power to Safety Sys.Power Restored to Rhrs Pump1999-01-0808 January 1999 PNO-III-99-002:on 990106,partial Loss of Offsite Power Occurred.Power Lost to Rhrs,Normal Shutdown Cooling Sys & in Svc at Time of Event.Plant Three EDGs Started Automatically & Provided Power to Safety Sys.Power Restored to Rhrs Pump PNO-III-98-016, on 980213,licensee Declared Alert Under Emergency Plan After Loss of Shutdown Cooling.Licensee Restored RHR Sys to Service & Terminated Alert Declaration1998-02-13013 February 1998 PNO-III-98-016:on 980213,licensee Declared Alert Under Emergency Plan After Loss of Shutdown Cooling.Licensee Restored RHR Sys to Service & Terminated Alert Declaration PNO-III-98-002, on 980105,util Announced Selection of PECO Energy Co to Provide Mgt Services for Station.Peco Energy Will Provide Six to Eight Managers to Fill Key Positions1998-01-0505 January 1998 PNO-III-98-002:on 980105,util Announced Selection of PECO Energy Co to Provide Mgt Services for Station.Peco Energy Will Provide Six to Eight Managers to Fill Key Positions PNO-III-97-065A, on 970805,Westinghouse Circuit Breaker Failed to Open Signal During Planned Switch of Pumps in RHR Sys Update Made.Licensee Investigation Attributed Failure to Lack of Appropriate Maint1997-08-15015 August 1997 PNO-III-97-065A:on 970805,Westinghouse Circuit Breaker Failed to Open Signal During Planned Switch of Pumps in RHR Sys Update Made.Licensee Investigation Attributed Failure to Lack of Appropriate Maint PNO-III-97-065, on 970805,Westinghouse Circuit Breaker Failed to Open on Demand During Planned Change of Pumps in RHR Sys. RHR Sys Provides Reactor Cooling While Plant Shut Down.Nrc Augmented Insp Team Dispatched to Plant to Review Breaker1997-08-0505 August 1997 PNO-III-97-065:on 970805,Westinghouse Circuit Breaker Failed to Open on Demand During Planned Change of Pumps in RHR Sys. RHR Sys Provides Reactor Cooling While Plant Shut Down.Nrc Augmented Insp Team Dispatched to Plant to Review Breaker PNO-III-97-054, on 970604,licensee Reported That non-licensed Senior Manager Had Tested Positive for Alcohol,In Accordance w/fitness-for-duty Program.Positive Test Results Confirmed by Licensee Medical Review Officer Based on Program1997-06-0606 June 1997 PNO-III-97-054:on 970604,licensee Reported That non-licensed Senior Manager Had Tested Positive for Alcohol,In Accordance w/fitness-for-duty Program.Positive Test Results Confirmed by Licensee Medical Review Officer Based on Program PNO-III-97-005, on 970127,individual Set Off Radiation Alarm, While Using Personal Contamination Monitor Prior to Exiting Radiologically Controlled Area of Plant.Nrc Resident Inspectors Monitoring Licensee Investigation1997-01-28028 January 1997 PNO-III-97-005:on 970127,individual Set Off Radiation Alarm, While Using Personal Contamination Monitor Prior to Exiting Radiologically Controlled Area of Plant.Nrc Resident Inspectors Monitoring Licensee Investigation PNO-III-96-058B, 961004,second Update Re Preliminary Findings of Two NRC Team Insps Stemming from Utils Handling of Recirculation Pump Seal Leak & Shutdown of Plant on 960906. Plant Will Remain Shutdown Until 961013 Refueling Outage1996-10-0808 October 1996 PNO-III-96-058B:961004,second Update Re Preliminary Findings of Two NRC Team Insps Stemming from Utils Handling of Recirculation Pump Seal Leak & Shutdown of Plant on 960906. Plant Will Remain Shutdown Until 961013 Refueling Outage PNO-III-96-026, on 960409,Unit 1 Reactor Shut Down Automatically When Maint Activities in Switchyard Resulted in Partial Loss of Offsite Power.On 960410 Second Unusual Event Declared Due to Heatup Rate in Excess of TS1996-04-11011 April 1996 PNO-III-96-026:on 960409,Unit 1 Reactor Shut Down Automatically When Maint Activities in Switchyard Resulted in Partial Loss of Offsite Power.On 960410 Second Unusual Event Declared Due to Heatup Rate in Excess of TS PNO-III-89-049, on 890731,reactor Operators Manually Scrammed Reactor from 25% Power as Water Level in Reactor Approached High Level Reactor Trip Point.Caused by Rupture in Bellows on Feedwater Header.Outage Expected to Last Approx 4 Days1989-08-0101 August 1989 PNO-III-89-049 on 890731,reactor Operators Manually Scrammed Reactor from 25% Power as Water Level in Reactor Approached High Level Reactor Trip Point.Caused by Rupture in Bellows on Feedwater Header.Outage Expected to Last Approx 4 Days PNO-III-89-046, on 890714,operators Reduced Power from 100% to 35% in Response to Rapidly Decreasing Condenser Vacuum. Vacuum Lost Due to Failure of Turbine Boot Seal.Region III Monitoring Licensee Course of Action & State of Il Notified1989-07-17017 July 1989 PNO-III-89-046:on 890714,operators Reduced Power from 100% to 35% in Response to Rapidly Decreasing Condenser Vacuum. Vacuum Lost Due to Failure of Turbine Boot Seal.Region III Monitoring Licensee Course of Action & State of Il Notified PNO-III-89-041, on 890628,reactor Tripped from 99% Power as Result of Tripping of Phase C Main Transformer.Caused by Unplanned Opening of Oil Pressure Sensing Relay.Relay Will Be Inspected & Tested1989-06-28028 June 1989 PNO-III-89-041:on 890628,reactor Tripped from 99% Power as Result of Tripping of Phase C Main Transformer.Caused by Unplanned Opening of Oil Pressure Sensing Relay.Relay Will Be Inspected & Tested PNO-III-89-037, on 890601,recirculation Pump B Seals Failed After Pump Shifted to Fast Speed During Plant Increase in Power Following First Refueling Outage.Recirculation Loop Isolated & Plant Shutdown Initiated.Special Insp Planned1989-06-0101 June 1989 PNO-III-89-037:on 890601,recirculation Pump B Seals Failed After Pump Shifted to Fast Speed During Plant Increase in Power Following First Refueling Outage.Recirculation Loop Isolated & Plant Shutdown Initiated.Special Insp Planned PNO-III-88-093, on 881111,turbine-generator Trip Followed by Automatic Reactor Shutdown Due to Fire in Main Transformer. on 881114,arcing Observed at Circuit Switcher Between Reserve Auxiliary Transformer & Offsite Power Sys1988-11-14014 November 1988 PNO-III-88-093:on 881111,turbine-generator Trip Followed by Automatic Reactor Shutdown Due to Fire in Main Transformer. on 881114,arcing Observed at Circuit Switcher Between Reserve Auxiliary Transformer & Offsite Power Sys PNO-III-88-084, on 881011,licensee Informed of Investigation of Senior Manager for Possible Alcohol Use on 881010.Manager Actions Did Not Appear to Impact Conduct of Operations. Licensee Plans to Retain Outside Consultant to Investigate1988-10-11011 October 1988 PNO-III-88-084:on 881011,licensee Informed of Investigation of Senior Manager for Possible Alcohol Use on 881010.Manager Actions Did Not Appear to Impact Conduct of Operations. Licensee Plans to Retain Outside Consultant to Investigate PNO-III-88-068A, as of 880812,threat of Possible Strike Between Intl Brotherhood of Workers (Four Locals) & Licensee.Strike Under Negotiation1988-08-12012 August 1988 PNO-III-88-068A:as of 880812,threat of Possible Strike Between Intl Brotherhood of Workers (Four Locals) & Licensee.Strike Under Negotiation PNO-III-88-068, on 880815,Intl Brotherhood of Electrical Workers Threatened to Go on Strike.About One Half of Util Employees Would Be Affected.Region III Will Staff Util around-the-clock If Strike Should Occur1988-08-0303 August 1988 PNO-III-88-068:on 880815,Intl Brotherhood of Electrical Workers Threatened to Go on Strike.About One Half of Util Employees Would Be Affected.Region III Will Staff Util around-the-clock If Strike Should Occur PNO-III-88-057, on 880623,three Workers Received Burns While Working on Radwaste Evaporator,Resulting in Skin Contamination (Less than 10,000 dpm/100 cm2).Onsite Radiation Specialist Reviewing Accident.News Media Informed1988-06-23023 June 1988 PNO-III-88-057:on 880623,three Workers Received Burns While Working on Radwaste Evaporator,Resulting in Skin Contamination (Less than 10,000 dpm/100 cm2).Onsite Radiation Specialist Reviewing Accident.News Media Informed PNO-III-88-037, on 880412,approx 1,000 Gallons of Radioactive Water Drained from RHR Sys Piping Into Equipment Room.Spill Occurred When RHR Valves Returned to Normal Positions After Leak Rate Testing.Cleanup of Rooms & Equipment Initiated1988-04-13013 April 1988 PNO-III-88-037:on 880412,approx 1,000 Gallons of Radioactive Water Drained from RHR Sys Piping Into Equipment Room.Spill Occurred When RHR Valves Returned to Normal Positions After Leak Rate Testing.Cleanup of Rooms & Equipment Initiated PNO-III-87-115, on 870828,DeWitt County Sheriff Dept Received Anonymous Telcon Indicating Presence of Bomb at Facility. Search Initiated & Security Measures Increased.No Device Found.Sheriff Dept Concluded That Threat Was Hoax1987-08-31031 August 1987 PNO-III-87-115:on 870828,DeWitt County Sheriff Dept Received Anonymous Telcon Indicating Presence of Bomb at Facility. Search Initiated & Security Measures Increased.No Device Found.Sheriff Dept Concluded That Threat Was Hoax 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 Plants1987-06-11011 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 PNO-III-87-076, on 870524,reactor Scrammed When Feedwater Regulating Valve Failed in Open Position Resulting in Automatic Scramming of Aprm.Licensee Will Investigate Cause of Valve Failure & to Perform Maint Activities1987-05-26026 May 1987 PNO-III-87-076:on 870524,reactor Scrammed When Feedwater Regulating Valve Failed in Open Position Resulting in Automatic Scramming of Aprm.Licensee Will Investigate Cause of Valve Failure & to Perform Maint Activities PNO-III-87-065, on 870505,contract Security Guard Fired as Results of Blood Alcohol Test Showing Intoxication.Guard Observed Talking Loudly & Using Profanity on 870502.Security Locks Will Be Changed1987-05-0707 May 1987 PNO-III-87-065:on 870505,contract Security Guard Fired as Results of Blood Alcohol Test Showing Intoxication.Guard Observed Talking Loudly & Using Profanity on 870502.Security Locks Will Be Changed PNO-III-87-052, on 870408,licensee Reported That Channel Check of Containment High Pressure Instrumentation Not Performed Once Per Shift.Caused by Incorrect Designation of Instrument or Omission in Surveillance Procedure1987-04-10010 April 1987 PNO-III-87-052:on 870408,licensee Reported That Channel Check of Containment High Pressure Instrumentation Not Performed Once Per Shift.Caused by Incorrect Designation of Instrument or Omission in Surveillance Procedure PNO-III-87-042, on 870322,reactor Scrammed Manually Due to Control Rod Movement Into Reactor Core.Caused by Unexpected Isolation Valve Closure in Instrument Air Sys.Plant Will Be Shutdown for Several Days for Maint1987-03-23023 March 1987 PNO-III-87-042:on 870322,reactor Scrammed Manually Due to Control Rod Movement Into Reactor Core.Caused by Unexpected Isolation Valve Closure in Instrument Air Sys.Plant Will Be Shutdown for Several Days for Maint PNO-III-87-025, on 870223,12 of 15 Operators Failed to Rept to Work.Licensee Was Unsuccessful in Attempt to Fill Vacancies.Cold Shutdown Met by Using Supervisory Senior Reactor Operators & Nonlicensed Operators in Training1987-02-23023 February 1987 PNO-III-87-025:on 870223,12 of 15 Operators Failed to Rept to Work.Licensee Was Unsuccessful in Attempt to Fill Vacancies.Cold Shutdown Met by Using Supervisory Senior Reactor Operators & Nonlicensed Operators in Training PNO-III-86-109, on 860929,OL Issued to Util for Facility. License Limited to Fuel Loading & Operation Up to 5% Power. Fuel Loading Will Begin on 860929 & Takes 3 Wks to Complete. State of Il Notified1986-09-29029 September 1986 PNO-III-86-109:on 860929,OL Issued to Util for Facility. License Limited to Fuel Loading & Operation Up to 5% Power. Fuel Loading Will Begin on 860929 & Takes 3 Wks to Complete. State of Il Notified PNO-III-86-068, on 860715,potential Tampering W/Nuts on Strongback Holding Div I & Div II Shutdown Svc Water Backwash Strainer Insp Port Covers Reported.Investigation Continuing.Security Patrols of Vital Plant Areas Increased1986-07-16016 July 1986 PNO-III-86-068:on 860715,potential Tampering W/Nuts on Strongback Holding Div I & Div II Shutdown Svc Water Backwash Strainer Insp Port Covers Reported.Investigation Continuing.Security Patrols of Vital Plant Areas Increased PNO-III-85-048, on 850610,290 Workers & on 850611,2,500 Workers Walked Off Job.Caused by Protest in Response to QC Inspector Hitting Laborer W/Roll of Blueprints.Most Workers Back at Work on 8506121985-06-12012 June 1985 PNO-III-85-048:on 850610,290 Workers & on 850611,2,500 Workers Walked Off Job.Caused by Protest in Response to QC Inspector Hitting Laborer W/Roll of Blueprints.Most Workers Back at Work on 850612 PNO-III-82-074, on 820803,Baldwin & Associates Issued Stop Work Order Against Zack Co,Hvac Contractor.Stop Work Order Involves All nonsafety-related HVAC Work Performed in Category I Structures1982-08-0303 August 1982 PNO-III-82-074:on 820803,Baldwin & Associates Issued Stop Work Order Against Zack Co,Hvac Contractor.Stop Work Order Involves All nonsafety-related HVAC Work Performed in Category I Structures PNO-III-82-071, on 820729,received Part 21 Rept Via Telcon W/Zack Co Re Documentation Discrepancies for Welds Made to HVAC Components at La Salle & Possibly at Clinton & Midland.Welder of Record May Not Be Actual Welder1982-07-30030 July 1982 PNO-III-82-071:on 820729,received Part 21 Rept Via Telcon W/Zack Co Re Documentation Discrepancies for Welds Made to HVAC Components at La Salle & Possibly at Clinton & Midland.Welder of Record May Not Be Actual Welder PNO-III-82-068, on 820503,allegations from Former Employee of HVAC Contractor Received Re False or Incomplete QA Documentation for HVAC Work at Sites.Special Insp of Zack Co & Facilities Initiated1982-07-22022 July 1982 PNO-III-82-068:on 820503,allegations from Former Employee of HVAC Contractor Received Re False or Incomplete QA Documentation for HVAC Work at Sites.Special Insp of Zack Co & Facilities Initiated PNO-III-82-060, on 820624,water Thrown on Baldwin & Associates QC Inspectors Working in Containment Bldg. Consequences of Employee Intimidation of Inspectors Discussed.Licensee Continuing Investigation1982-06-25025 June 1982 PNO-III-82-060:on 820624,water Thrown on Baldwin & Associates QC Inspectors Working in Containment Bldg. Consequences of Employee Intimidation of Inspectors Discussed.Licensee Continuing Investigation ML20054J6201982-06-23023 June 1982 Corrected Copy of PNO-III-82-058A:on 820623,stop Work Order Issued Due to Missing or Inaccurate Documentation (Travelers).Licensee Will Meet W/Region III on 820712 to Discuss QA Program & Corrective Actions PNO-III-82-058, on 820621,const Halted While Plant Constructor Reviewed All Piping,Mechanical,Electrical & Instrumentation Documentation.Documents Being Reviewed for Accuracy1982-06-21021 June 1982 PNO-III-82-058:on 820621,const Halted While Plant Constructor Reviewed All Piping,Mechanical,Electrical & Instrumentation Documentation.Documents Being Reviewed for Accuracy ML20204F1921980-07-14014 July 1980 PNS-III-80-010:on 800712,threat Received from Male Caller Onsite Re Bomb in Power Block.Site Searched W/Negative Results.Site Evacuated.End of First & Second Shift Activities Canceled PNO-III-80-053, on 800318 Pipefitter Working on Turbine Bldg Roof Drain Piping Fell from 65 Ft Scaffolding,Hitting Crane Support Girder & Was Killed1980-03-19019 March 1980 PNO-III-80-053:on 800318 Pipefitter Working on Turbine Bldg Roof Drain Piping Fell from 65 Ft Scaffolding,Hitting Crane Support Girder & Was Killed ML20244A9711980-03-0707 March 1980 PNO-III-80-44:on 800306,licensee Confirmed That Computer Code Input Error Identified by Ae During Analysis of Safety Relief Valve & LOCA Dynamic Loadings.Effects Not Known. Reanalysis Required to Assess Impact ML20216J7201978-11-28028 November 1978 PNO-78-196:on 781127,propane Gas Explosion & Fire Occured in Drywell of Clinton Unit 1 & Killing One Craftsman & Injured Another Working About 40 Feet Away.State of Il Notified ML20249A5611978-08-28028 August 1978 PNS-78-041:on 780827,licensee Notified Riii That Bomb Threat Was Received at Clinton Site.Nothing Was Found.State of Il Informed ML20249A7791978-01-0505 January 1978 PNS-78-001:on 780104,bomb Threat Received at Site from Anonymous Caller.Supervisor on Duty Evacuated Skeleton Crew & Caused Search of Premises to Be Conducted by Company Security Personnel.No Explosive Devices Disclosed by Search ML20249B9031976-08-23023 August 1976 PNO-76-146:on 760822,6 Unoccupied Trailers at Site Had Burned.Fire Dept from 3 Communities Responded to Blaze & Were Unable to Save Structures 1999-05-28 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARIR 05000461/19990191999-10-15015 October 1999
[Table view]Insp Rept 50-461/99-19 on 990913-17.Noncited Violation Noted.Major Areas Inspected:Evaluation of Effectiveness of Aspects of Radiation Protection Program IR 05000461/19990141999-10-0101 October 1999 Insp Repts 50-461/99-14 & 50-461/98-12 on 990729-0908.Two Violations Occurred & Being Treated as Ncvs.Major Areas Inspected:Aspects of Licensee Operations,Maint,Engineering & Plant Support ML20217J1361999-09-30030 September 1999 Notice of Violation from Investigation on 971028-980921. Violation Noted:During Jan 1997,QV Dept Discriminated Against Qv Inspector,For Having Engaged in Protected Activities ML20217J1481999-09-30030 September 1999 Notice of Violation from Investigation Conducted from 991028-980921.In Jan 1997,CH Tewksbury Engaged in Deliberate Misconduct That Caused Util to Be in Violation of 10CFR50.7 IR 05000461/19990131999-08-19019 August 1999 Insp Rept 50-461/99-13 on 990611-0728.Non-cited Violations Noted.Major Areas Inspected:Operations,Maintenance, Engineering & Plant Support IR 05000461/19990101999-07-16016 July 1999 Insp Rept 50-461/99-10 on 990422-0610.Noncited Violations Identified.Major Areas Inspected:Aspects of Licensee Operations,Maint,Engineering & Plant Support IR 05000461/19990171999-07-0909 July 1999 Insp Rept 50-461/99-17 on 990607-11.No Violations Noted. Major Areas Inspected:Review of Access Authorization Program,Communications,Protected Areas Access Control of Personnel,Packages,Matl & Vehicles & Testing & Maint IR 05000461/19990121999-07-0707 July 1999 Insp Rept 50-461/99-12 on 990607-11.No Violations Noted. Major Areas Inspected:Evaluation of Effectiveness of Aspects of Chemistry & Radiation Protection Programs Including Quality Control of Lab & Inline Instrumentation PNO-III-99-028, on 990506,reactor Achieved Criticality Starting Up from Sept 1995 Outage.Region III Maintained Continuous Insp Coverage Throughout Restart Period.Info in Preliminary Notification Reviewed1999-05-28028 May 1999 PNO-III-99-028:on 990506,reactor Achieved Criticality Starting Up from Sept 1995 Outage.Region III Maintained Continuous Insp Coverage Throughout Restart Period.Info in Preliminary Notification Reviewed IR 05000461/19990041999-05-0505 May 1999 Insp Rept 50-461/99-04 on 990301-0407.Non-cited Violations Noted.Major Areas Inspected:Effectiveness of Operators to Safely Operate Facility IR 05000461/19990011999-04-30030 April 1999 Insp Rept 50-461/99-01 on 990208-0325.Noncited Violation Noted.Major Areas Inspected:Operations,Maint & Plant Support IR 05000461/19990111999-04-30030 April 1999 Insp Rept 50-461/99-11 on 990408-21.Violations Noted. Major Areas Inspected:Licensee Operations,Maint,Engineering & Plant Support ML20206G9821999-04-30030 April 1999 Notice of Violation from Insp on 990408-21.Violation Noted:Licensee,Despite Having Considered Issue Closed in Corrective Action Program,Failed to Correct Condition Adverse to Quality IR 05000461/19990031999-04-21021 April 1999 Insp Rept 50-461/99-03 on 990208-0318.Eight Violations Occurred & Being Treated as non-cited Violations.Major Areas Inspected:Engineering Organization Effectiveness & Readiness for Restart Through in-depth Review of Calculations IR 05000461/19990061999-04-21021 April 1999 Insp Rept 50-461/99-06 on 990217-0407.Violations Noted.Major Areas Inspected:Operations,Maint & Engineering IR 05000461/19990081999-04-0909 April 1999 Insp Rept 50-461/99-08 on 990309-12.No Violations Noted. Major Areas Inspected:Licensee Performance During Exercise of Emergency Plan IR 05000461/19990071999-04-0101 April 1999 Insp Rept 50-461/99-07 on 990301-05.No Violations Noted. Major Areas Inspected:Review of Alarm Stations,Protected Area Detection & Assessment Aids IR 05000461/19980291999-03-24024 March 1999 Insp Rept 50-461/98-29 on 981214-990217.No Violations Noted. Major Areas Inspected:Review of Circumstances Surrounding High Number of Licensed Operator Failures That Occurred as Result of 1998 Annual Operator Requalification Exam IR 05000461/19990021999-03-18018 March 1999 Insp Rept 50-461/99-02 on 990107-0216.No Violations Noted. Major Areas Inspected:Licensee Operations,Maint,Engineering, & Plant Support ML20204E6931999-03-10010 March 1999 Notice of Violation from Insp on 990208-12.Violtion Noted: Licensee Did Not Make Adequate Surveys to Assure Compliance with 10CFR20.1902(b) Requiring Posting of Each High Radiation Area with Signs Displaying Listed Words IR 05000461/19990051999-03-10010 March 1999 Insp Rept 50-461/99-05 on 990208-12.Violation Noted.Major Areas Inspected:Evaluation of Effectiveness of Aspects of RP Program IR 05000461/19980281999-02-0101 February 1999 Insp Rept 50-461/98-28 on 981214-18.No Violations Noted. Major Areas inspected:follow-up Review of Licensee Program for Implementating 10CFR50.65,maint,quality Assurance Program & Engineering IR 05000461/19980201999-01-22022 January 1999 Insp Rept 50-461/98-20 on 981118-990106.Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support PNO-III-99-002, on 990106,partial Loss of Offsite Power Occurred.Power Lost to Rhrs,Normal Shutdown Cooling Sys & in Svc at Time of Event.Plant Three EDGs Started Automatically & Provided Power to Safety Sys.Power Restored to Rhrs Pump1999-01-0808 January 1999 PNO-III-99-002:on 990106,partial Loss of Offsite Power Occurred.Power Lost to Rhrs,Normal Shutdown Cooling Sys & in Svc at Time of Event.Plant Three EDGs Started Automatically & Provided Power to Safety Sys.Power Restored to Rhrs Pump IR 05000461/19980271998-12-31031 December 1998 Insp Rept 50-461/98-27 on 981117-20.No Violations Noted. Major Areas Inspected:Licensee Performance During Exercise of Emergency Plan IR 05000461/19980181998-12-17017 December 1998 Insp Rept 50-461/98-18 on 981002-1117.Violations Noted.Major Areas Inspected:Operations,Engineering,Maint & Plant Support IR 05000461/19980261998-12-13013 December 1998 Insp Rept 50-461/98-26 on 981013-30.Violations Were Identified,But No Notice Was Issued.Major Areas Inspected: Engineering & Plant Support IR 05000461/19980191998-11-25025 November 1998 Insp Rept 50-461/98-19 on 980914-1009.No Violations Noted. Major Areas Inspected:Engineering ML20155E7131998-10-30030 October 1998 Notice of Violation from Insp on 980819-1001.Violation Noted:On 980909,operator Responding to Alarming Annunciator on Area Radiation Monitoring Sys Did Not Announce Annunciator to Control Room Supervisor IR 05000461/19980171998-10-30030 October 1998 Insp Rept 50-461/98-17 on 980819-1001.Violation Noted.Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000461/19980241998-10-29029 October 1998 Insp Rept 50-461/98-24 on 980921-1001.No Violations Noted. Major Areas Inspected:Review of Licensee Radiological Planning for ECC Suction Strainer Mod IR 05000461/19980251998-10-28028 October 1998 Insp Rept 50-461/98-25 on 981005-09.No Violations Noted. Major Areas Inspected:Portion of EP Program,Review of Documentation,Tours & Observations of Emergency Response Facilities & Equipment & Follow Up on Previous Findings IR 05000461/19983011998-10-0909 October 1998 NRC Operator Licensing Retake Exam Rept 50-461/98-301(OL) Administered to One Applicant Requesting SRO License on 980831-0904.Applicant Passed Operating Retake Exam But Not Issued SRO License to Operate Plant IR 05000461/19980141998-09-17017 September 1998 Insp Rept 50-461/98-14 on 980707-0818.Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support ML20237B1531998-08-11011 August 1998 Notice of Violation from Insp on 980521.Violation Noted:On 980119,individual Exited RCA Utilizing Point Other than Designated Areas W/O Obtaining Approval from Radiological Operations Supervisor IR 05000461/19980111998-08-0707 August 1998 Insp Rept 50-461/98-11 on 980527-0710.Enforcement Discretion Being Exercised for Six Violations Identified.Major Areas Inspected:Aspects of Licensee Operations,Engineering,Maint & Plant Support IR 05000461/19980131998-07-0808 July 1998 Insp Rept 50-461/98-13 on 980622-25.No Violations Noted. Major Areas Inspected:Effectiveness of Aspects of RP Program ML20236L3071998-07-0707 July 1998 Notice of Violation from Insp on 980504-08.Violation Noted: on 980213,ERDS Not Initiated within 1 H of Declaration of Alert & Only One Electrical Maint Personnel on Shift Trained & Assigned as Member of Emergency Response Organization ML20236L3171998-07-0707 July 1998 Insp Rept 50-461/98-09 on 980504-08.No Violations Noted. Major Areas Inspected:Review of Documentation Re Actual EP Activation,Evaluation of Quality of EP Program Related Audits & Reviews & Effectiveness of Mgt Controls IR 05000461/19980081998-06-25025 June 1998 Insp Rept 50-461/98-08 on 980414-0528.Enforcement Discretion Has Been Authorized for Listed Violations.Major Areas Inspected:Aspects of Licensee Operations,Engineering,Maint & Plant Support ML20237E6641998-06-0505 June 1998 EN-98-044:informs Commission That NRC Intends to Exercise Enforcement Discretion & Not Issue Citation or Propose Civil Penalty for Four Violations of Maint Rule.Ltr Describing Action Will Be Issued on or About 980612 ML20248J8641998-06-0303 June 1998 Notice of Violation from Insp on 980511-15.Violation Noted: Between 980429 & 980513,control Rod Drive Filter Area on 712 Elevation of Turbine Building,Radiation Area W/Radiation Dose of 8 Mrem Per Hour,Was Not Posted W/Warning Sign IR 05000461/19980101998-06-0303 June 1998 Insp Rept 50-461/98-10 on 980511-15.Violations Noted.Major Areas Inspected:Plant Support IR 05000461/19980061998-05-11011 May 1998 Insp Rept 50-461/98-06 on 980304-0414.No Violations Noted. Major Areas Inspected:Aspects of Licensee Operations, Engineering,Maint & Plant Support ML20217F4431998-04-22022 April 1998 Notice of Violation from Insp on 980323-27.Violation Noted: Description of Facility in USAR Not Accurate in All Matl Respects ML20217F4611998-04-22022 April 1998 Insp Rept 50-461/98-07 on 980323-27.Violations Noted.Major Areas Inspected:Plant Support IR 05000461/19980031998-03-27027 March 1998 Insp Rept 50-461/98-03 on 980123-0303.Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support IR 05000461/19973131998-03-24024 March 1998 NRC Operator Licensing Exam Rept 50-461/97-313OL Conducted on 980126-0205.Exam Results:Exam Was Administered to Two RO & Seven SRO Applicants.Five SRO & Two RO Applicants Passed All Portions of Exam & Two SRO Applicants Failed ML20217D8511998-03-20020 March 1998 EN-98-014:informs Commission That NRC Will Exercise Enforcement Discretion Per Section VII.B.2 of Enforcement Policy & Not Issue NOV to Il Power Co for Several Violations Associated W/Loss of Shutdown Cooling Event on 980213 IR 05000461/19980041998-03-20020 March 1998 Insp Rept 50-461/98-04 on 980213-16.No Violations Noted. Major Areas Inspected:Operations & Maint 1999-09-30 |
PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-87-76 Date May 26, 1987 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without v;rification or evaluation, and is basically all that is known by the Region III staff on this date.
Facility: Illinois Power Company Licensee Emergency Classification:
Clinton Unit 1 X Notification of an Unusual Event Clinton, IL 61727 Alert Site Area Emergency Docket No. 50-461 General Emergency Not Applicable
Subject:
AUTOMATIC SCRAM DUE TO FEEDWATER VALVE FAILURE At 6:15 p.m. (CDT), May 24, 1987, the reactor scrammed from 18 percent power when a fe:dwater regulating valve failed in the open position, increasing the flow of water to the reactor. The increased flow increased the neutron flux, resulting in the Average Power Rang 2 Monitor automatically scranning the reactor when the flux level reached the indicated setpoint.
The licensee plans to remain shutdown to investigate the cause of the valve failure and to perform scheduled maintenance activities.
This event was similar to a manual reactor scram on May 6, 1987, when the same feedwater regulating valve malfunctioned.
Region III (Chicago) is monitoring the licensee's course of action.
The State of Illinois will be notified.
I The NRC Operations Center was notified of this event at 7:13 p.m. (CDT), May 24, 1987. This information is current as of 11:30 a.m. (CDT), May 26, 1987.
CONTACT: R. K o ne FTS 388-5547 FTS 388-5590 8706010026 870526 PDR I&E PNO-III-87-076 PDR DISTRIBUTTON:
H. St. ED0 NRR E/W Willste Mail: ADM:DMB Chairman Zech PA IE NMSS D0T:Trans only Comm. Roberts ELD OIA RES Comm. Asselstine AE0D NRC Ops Ctr M.70 Conn. Bernthal Comm. Carr SP /.'t/h Regional Offices ACRS SECY INP0/.*M NSAC / M RIII Resident Officg
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CA PDR Licensee: J.'/4, (Corp. Office - Reactor Lic. Only)
Region III Rev. November 1986 Y/ :W3f