PNO-I-85-067A, on 850924-25,failed Reactor Protection Sys Breaker Removed & Examined.Failure Caused by Mechanical Binding within Breaker Closure Assembly.Investigation Continuing
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| ML20132E031 | |
| Person / Time | |
|---|---|
| Site: | Three Mile Island  |
| Issue date: | 09/27/1985 |
| From: | Kane W, Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| References | |
| PNO-I-85-067A, PNO-I-85-67A, NUDOCS 8509300366 | |
| Download: ML20132E031 (2) | |
Similar Documents at Three Mile Island | |
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Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-I-97-068, on 971103,unplanned Shutdown Greater than 72 H Occurred.Oil Leaks Detected & Repaired.Third RCP Inspected & Engineers Found Low Seal Flow at Second Stage Pump Seal. Resident Inspectors Following Onsite Activities1997-11-0505 November 1997
[Table view]PNO-I-97-068:on 971103,unplanned Shutdown Greater than 72 H Occurred.Oil Leaks Detected & Repaired.Third RCP Inspected & Engineers Found Low Seal Flow at Second Stage Pump Seal. Resident Inspectors Following Onsite Activities PNO-I-97-018, on 970328,protest Related to TMI-2 Accident Occurred.Protesters Walked in Circle,Outside of Util Property,Blocking Plant Entrance Lane.Plant Notified NRC Headquarter to Inform of Event1997-03-28028 March 1997 PNO-I-97-018:on 970328,protest Related to TMI-2 Accident Occurred.Protesters Walked in Circle,Outside of Util Property,Blocking Plant Entrance Lane.Plant Notified NRC Headquarter to Inform of Event ML20203G2581993-02-19019 February 1993 PNO-IIT-93-001B:final Onsite Status Rept from NRC Iit. Team Has Completed Initial fact-finding Phase at TMI, Middletown,Pa Site.Meeting W/Licensee TMI Site Emergency Review Group Was Held on 930215 ML20203G2941993-02-16016 February 1993 PNO-IIT-93-001A:IIT Remains Onsite Gathering Data,Conducting Interviews,Inspecting Equipment,Meeting W/Licensee, Concurring in Licensee Action Plans & Analyzing Facts.Onsite Interviews Should Be Completed by 930218 ML20203G3231993-02-10010 February 1993 PNO-IIT-93-001:IIT Arrived Onsite & Initiated Investigation, Toured Facility & Examined Equipment Associated W/Event. Team in Early Stage of Conducting Interviews,Reviewing Procedures & Drawings & Analyzing Facts PNO-I-93-011, on 930207,during Shift Change,Unauthorized Vehicle Driven Into Plant Protected Area.Site Area Emergency Declared.Caused by Former Mental Patient.Precautionary Measures to Secure Plant Vital Areas Implemented1993-02-0707 February 1993 PNO-I-93-011:on 930207,during Shift Change,Unauthorized Vehicle Driven Into Plant Protected Area.Site Area Emergency Declared.Caused by Former Mental Patient.Precautionary Measures to Secure Plant Vital Areas Implemented PNO-I-90-071, on 900829,resident Inspectors Informed That Concentration Value of 29,000 Pci/Liter of Tritium Found in Aug Sample of Groundwater Monitoring Station MS-2.No Tech Spec Release Limits Exceeded1990-08-30030 August 1990 PNO-I-90-071:on 900829,resident Inspectors Informed That Concentration Value of 29,000 Pci/Liter of Tritium Found in Aug Sample of Groundwater Monitoring Station MS-2.No Tech Spec Release Limits Exceeded PNO-I-89-081, on 890925,two Laborers Inadvertently Handled Core Debris That Could Have Resulted in Overexposure. Detailed Assessment Performed by Licensee to Establish Time Individuals Handled Source & Actual Doses Received1989-09-28028 September 1989 PNO-I-89-081:on 890925,two Laborers Inadvertently Handled Core Debris That Could Have Resulted in Overexposure. Detailed Assessment Performed by Licensee to Establish Time Individuals Handled Source & Actual Doses Received PNO-I-89-056, on 890710,reactor Vessel Lower Head Cracks from Guide Tubes E-7 & G-6 Discovered.Tubes Substantially Damaged by Flow of Molten Fuel.Investigation & Cleanup Started1989-07-10010 July 1989 PNO-I-89-056:on 890710,reactor Vessel Lower Head Cracks from Guide Tubes E-7 & G-6 Discovered.Tubes Substantially Damaged by Flow of Molten Fuel.Investigation & Cleanup Started ML20244C6411989-04-0707 April 1989 PNS-I-89-003:on 890401,security Officer Allegedly Committed Homicide While on Vacation.Weapon Unconnected to Employment. Measures Taken to Preclude Individual from Returning to Work Pending Outcome of Case.Commonwealth of PA Informed PNO-I-88-096, on 880917,licensee Shut Down Unit to Troubleshoot &/Or Repair Cause of High Flow in Seal leak-off Line 1 for Reactor Coolant Pump D1988-09-19019 September 1988 PNO-I-88-096:on 880917,licensee Shut Down Unit to Troubleshoot &/Or Repair Cause of High Flow in Seal leak-off Line 1 for Reactor Coolant Pump D PNO-I-88-084A, on 880829,resident Inspectors Informed of Results of Drug Testing on Licensee Reactor Operator Involved in Altercation Described in PNO-I-88-084.Licensee Terminated Employee on Basis of Positive Test Results1988-08-30030 August 1988 PNO-I-88-084A:on 880829,resident Inspectors Informed of Results of Drug Testing on Licensee Reactor Operator Involved in Altercation Described in PNO-I-88-084.Licensee Terminated Employee on Basis of Positive Test Results PNO-I-88-075, on 880720,results of Independent Investigation Re Operator Sleeping on Duty Announced.Disciplinary Actions Including Dismissal,Reassignments to Lower Positions & Formal Reprimands Made Effective on 8807191988-07-20020 July 1988 PNO-I-88-075:on 880720,results of Independent Investigation Re Operator Sleeping on Duty Announced.Disciplinary Actions Including Dismissal,Reassignments to Lower Positions & Formal Reprimands Made Effective on 880719 PNO-I-88-055, on 880523,worker Slipped & Fell Into Reactor Vessel from Defueling Platform.Caused by Worker Unhooking Himself from Sling to Install Equipment in Reactor Vessel. Worker Decontaminated & Licensee Conducted Event Critique1988-05-23023 May 1988 PNO-I-88-055:on 880523,worker Slipped & Fell Into Reactor Vessel from Defueling Platform.Caused by Worker Unhooking Himself from Sling to Install Equipment in Reactor Vessel. Worker Decontaminated & Licensee Conducted Event Critique PNO-I-88-021, on 880216,licensee Commenced Power Decrease to Hot Shutdown Condition Due to Main Turbine Generator Stator Cooling Flow Problem.In Conjunction W/Ge,Licensee Plans Chemical Cleaning & Backflush Process of Sys1988-02-17017 February 1988 PNO-I-88-021:on 880216,licensee Commenced Power Decrease to Hot Shutdown Condition Due to Main Turbine Generator Stator Cooling Flow Problem.In Conjunction W/Ge,Licensee Plans Chemical Cleaning & Backflush Process of Sys ML20236V9011987-11-30030 November 1987 PNO-TMI-87-005:on 871124,licensee Informed NRC That Investigation Re 870709 Allegation of Shift Supervisor Sleeping on Shift Has Been Finalized & Rept Will Be Provided to Nrc.Util Dismissed Shift Supervisor Under Investigation ML20236P9971987-11-12012 November 1987 PNO-TMI-87-004:on 871026,improperly Solidified Shipment of Class B Waste Identified.Waste Transported to Barnwell Disposal Site from Facility.Corrective Actions to Be Submitted to State No Later than 871125 PNO-I-87-063A, on 870710,special Insp Team Dispatched to Facility to Review Licensee Efforts Re Allegations of Sleeping on Duty.Random Offshift Insp Identified No Evidence of Operators Inattention to Duties1987-07-13013 July 1987 PNO-I-87-063A:on 870710,special Insp Team Dispatched to Facility to Review Licensee Efforts Re Allegations of Sleeping on Duty.Random Offshift Insp Identified No Evidence of Operators Inattention to Duties PNO-I-87-063, on 870709,NRC & Util Received Anonymous Allegation Re Shift Supervisor Sleeping on Duty.Makeshift Beds Identified & Dismantled & Three Contract Employees Terminated for Sleeping Onsite1987-07-10010 July 1987 PNO-I-87-063:on 870709,NRC & Util Received Anonymous Allegation Re Shift Supervisor Sleeping on Duty.Makeshift Beds Identified & Dismantled & Three Contract Employees Terminated for Sleeping Onsite PNO-I-87-049B, on 870612,NRC Informed That Confirmed Positive Drug Test Results Received on 10 Employees.One Employee Fired,One Reassigned & Eight Suspended.Positive Results for Licensed Operators or Mgt Personnel Not Received1987-06-15015 June 1987 PNO-I-87-049B:on 870612,NRC Informed That Confirmed Positive Drug Test Results Received on 10 Employees.One Employee Fired,One Reassigned & Eight Suspended.Positive Results for Licensed Operators or Mgt Personnel Not Received PNO-I-87-055, on 870612,reactor Shut Down Due to Increased Leakage from Letdown Cooler A.Letdown Cooler Will Be Replaced During 1-month Outage1987-06-15015 June 1987 PNO-I-87-055:on 870612,reactor Shut Down Due to Increased Leakage from Letdown Cooler A.Letdown Cooler Will Be Replaced During 1-month Outage PNO-I-87-049A, updates Licensee Drug Investigation at Facility.Licensee Not Releasing Details to Media or Public Due to Ongoing Investigation.Notification Issued on 870601 Contained Typo.Actual Date of Notification Should Be 8705191987-06-0303 June 1987 PNO-I-87-049A:updates Licensee Drug Investigation at Facility.Licensee Not Releasing Details to Media or Public Due to Ongoing Investigation.Notification Issued on 870601 Contained Typo.Actual Date of Notification Should Be 870519 ML20214R5151987-06-0202 June 1987 PNS-I-87-049:on 870319,licensee Notified Region I of Ongoing Drug Investigation.On 870601,local Tv Staion Told by Anonymous Source That Plant Workers Suspended as Result of Drug Testing.Licensee Ack Drug Investigation to Reporter ML20210C7191987-05-0404 May 1987 PNO-TMI-87-003:on 870503,4-inch Diameter Reinforced Rubber Pump Discharge Hose Ruptured on Defueling Water Cleanup Sys Spilling Approx 150 Gallons of Unfiltered Reactor Coolant. Three Persons Sprayed W/Water Decontaminated ML20205H2711987-03-26026 March 1987 PNO-TMI-87-002:on 870324,train Carrying Two Shipping Casks Containing TMI-2 Core Debris Struck Automobile in St Louis, Mo.Train Engine Received Minor Damage But Shipping Casks Not Damaged.No Release of Radioactive Matls Detected PNO-I-87-023, on 870323,reactor Critical Following 5-month Outage.Remote Shutdown Panel Test Conducted on 870322.Steam Generator Instruments Monitored Due to Lack of Agreement1987-03-24024 March 1987 PNO-I-87-023:on 870323,reactor Critical Following 5-month Outage.Remote Shutdown Panel Test Conducted on 870322.Steam Generator Instruments Monitored Due to Lack of Agreement ML20212D9241987-02-26026 February 1987 PNO-TMI-87-001:on 870225,radioactive Sample Container in Bed of Truck Discovered Offsite for 2 H.Caused by Container Apparently Placed in Truck When Matl Transported from One Onsite Location to Another.Container Sealed & Tagged PNO-I-87-006, in Dec 1986,licensee Informed Region I of Investigation of Employee Allegation Re Drug Use at Facility.Alleger Implicated 14 People.One Individual resigned,3 Tested Positive & 10 Cleared After Testing1987-01-28028 January 1987 PNO-I-87-006:in Dec 1986,licensee Informed Region I of Investigation of Employee Allegation Re Drug Use at Facility.Alleger Implicated 14 People.One Individual resigned,3 Tested Positive & 10 Cleared After Testing ML20211P9211986-12-16016 December 1986 PNO-TMI-86-005:on 861216,worker Injured in Reactor Bldg Containment When Temporary Lead Shield Fell.Worker Removed from Bldg After Receiving First Aid by Emergency Response Crew.Worker Decontaminated While En Route to Medical Ctr ML20203L3141986-08-20020 August 1986 PNO-TMI-86-004:on 860819,worker on Defueling Platform Injured When long-handled Tool in Reactor Vessel Dislodged from Temporary Storage Location,Pinning Hand Against Rack & Causing Laceration & Possible Fracture PNO-I-86-040, on 860602,reactor Scrammed Due to Trip of Main Turbine.Caused by Loss of Electrohydraulic Control Oil During Secondary Plant Electrical Power Supply Switching1986-06-0202 June 1986 PNO-I-86-040:on 860602,reactor Scrammed Due to Trip of Main Turbine.Caused by Loss of Electrohydraulic Control Oil During Secondary Plant Electrical Power Supply Switching ML20203J1821986-04-25025 April 1986 PNO-TMI-86-003:on 860425,contract Laborer Employed by Licensee Found Small Amount of Marijuana in Personnel Change Facility within Protected Area.Substance Turned Over to Security Personnel.Investigation Underway PNO-I-86-034, on 860424,plant Shut Down Due to Main Turbine Drain Line Steam Leak from Turbine Control Valve Header. Caused by Failed Weld at Socket Joint.Repairs Being Performed.Commonwealth of PA Notified1986-04-24024 April 1986 PNO-I-86-034:on 860424,plant Shut Down Due to Main Turbine Drain Line Steam Leak from Turbine Control Valve Header. Caused by Failed Weld at Socket Joint.Repairs Being Performed.Commonwealth of PA Notified PNO-I-86-033, on 860423,during Restart from Steam Generator Tube Insp Outage,Reactor Tripped from 8% Power on High RCS Pressure.Caused by Main Feedwater Transient in Which turbine-driven Pump Decreased Speed1986-04-23023 April 1986 PNO-I-86-033:on 860423,during Restart from Steam Generator Tube Insp Outage,Reactor Tripped from 8% Power on High RCS Pressure.Caused by Main Feedwater Transient in Which turbine-driven Pump Decreased Speed PNO-I-86-031, on 860421,loss of 4,160-volt Vital Bus & All Three Nonvital Buses Experienced.Caused by Vital Bus D Supply Breaker Fault & Trip.Power Restored to Nonvital Buses.Vital Bus D Supply Breaker Damaged1986-04-21021 April 1986 PNO-I-86-031:on 860421,loss of 4,160-volt Vital Bus & All Three Nonvital Buses Experienced.Caused by Vital Bus D Supply Breaker Fault & Trip.Power Restored to Nonvital Buses.Vital Bus D Supply Breaker Damaged PNO-I-86-024, on 860324,during Scheduled Outage Work in Reactor Bldg Five Workers Contaminated.Contamination Attributed to I-131 Evolving from RCS Water.Iodine Being Removed by Purging Reactor Bldg Air1986-03-26026 March 1986 PNO-I-86-024:on 860324,during Scheduled Outage Work in Reactor Bldg Five Workers Contaminated.Contamination Attributed to I-131 Evolving from RCS Water.Iodine Being Removed by Purging Reactor Bldg Air PNO-I-86-009A, on 860204,plant Restarted Following Outage to Replace Turbine Extraction Steam Bellows Inside Main Condenser1986-02-0505 February 1986 PNO-I-86-009A:on 860204,plant Restarted Following Outage to Replace Turbine Extraction Steam Bellows Inside Main Condenser ML20205J2231986-01-28028 January 1986 PNO-TMI-86-002:on 860128,electrician Passed Out on Defueling Platform While Changing Light Bulbs.Emergency Response Team Responded.Individual Examined,Frisked & Transported to Hosp. Cause Unknown PNO-I-86-009, on 860127,reactor Shut Down to Repair Leaking Expansion Bellows on Feedwater Heater Extraction Steam Line. Cause of Leakage Not Stated.Outage Should Last 1 Wk1986-01-27027 January 1986 PNO-I-86-009:on 860127,reactor Shut Down to Repair Leaking Expansion Bellows on Feedwater Heater Extraction Steam Line. Cause of Leakage Not Stated.Outage Should Last 1 Wk ML20137D9091986-01-13013 January 1986 PNO-TMI-86-001:on 860112,licensee Transferred First Three Loaded Fuel Canisters Out of Reactor Bldg Into Fuel Handling Bldg.Canisters Loaded W/Core Debris.Highest Radiation Level on Transfer Shield Surface Was 20 M/H PNO-I-85-095, on 851230,seal Failure on RCS Makeup Pump 1A Occurred,Spilling Approx 300 Gallons of Water on Floor.Nine Personnel Slightly Contaminated.Approx 46 Ci Released from Plant.Pump Drained.Personnel Cleaned Up Room1985-12-30030 December 1985 PNO-I-85-095:on 851230,seal Failure on RCS Makeup Pump 1A Occurred,Spilling Approx 300 Gallons of Water on Floor.Nine Personnel Slightly Contaminated.Approx 46 Ci Released from Plant.Pump Drained.Personnel Cleaned Up Room ML20138L8001985-12-16016 December 1985 PNO-TMI-85-011:on 851214,load Drop Event Occurred When Defueling Canister & Support Sleeve Fell Into Reactor Vessel.Caused by Jib Crane Being Overweighted.Crane Taken Out of Svc Pending Evaluations Re Effects on Load Lift ML20138M2531985-12-16016 December 1985 PNO-TMI-85-011:on 851214,load Drop Event Occurred When Defueling Canister & Support Sleeve Fell Into Reactor Vessel.Both Retrieved & Restored to Original Configuration in Canister Positioning Sys Using Reactor Bldg Svc Crane ML20138L0191985-10-28028 October 1985 PNO-TMI-85-010:on 851028,initial Phase of Defueling Damaged Reactor Core Will Begin.Defueling Will Involve Manipulation of Partial Fuel Assemblies in Preparation for Loading Into Canisters.Press Release Issued PNO-I-85-079, on 851016,steam Leak Identified on Drain Line from Associated Main Turbine Control Valve Header.Caused by through-wall Crack in Weld Associated W/Pipe Elbow.Power Reduced from 40% to Make Repairs1985-10-16016 October 1985 PNO-I-85-079:on 851016,steam Leak Identified on Drain Line from Associated Main Turbine Control Valve Header.Caused by through-wall Crack in Weld Associated W/Pipe Elbow.Power Reduced from 40% to Make Repairs PNO-I-85-067A, on 850924-25,failed Reactor Protection Sys Breaker Removed & Examined.Failure Caused by Mechanical Binding within Breaker Closure Assembly.Investigation Continuing1985-09-27027 September 1985 PNO-I-85-067A:on 850924-25,failed Reactor Protection Sys Breaker Removed & Examined.Failure Caused by Mechanical Binding within Breaker Closure Assembly.Investigation Continuing ML20132C4491985-09-25025 September 1985 PNO-TMI-85-009:error in Sr-90 Radiochemistry Quantitative Analysis Used Since 1981 for Solid Samples Resulted in Reporting of one-half Actual Value.Past Shipments of Radwaste to Hanford,Wa May Exceed 10CFR61.55 Requirements PNO-I-85-067, on 850923,malfunction of One Reactor Protection Sys Ac Breaker Caused Small Electrical Fire.Operator Deenergized Breaker from Feeder Bus & Fire Extinguished. Spare Breaker Installed1985-09-24024 September 1985 PNO-I-85-067:on 850923,malfunction of One Reactor Protection Sys Ac Breaker Caused Small Electrical Fire.Operator Deenergized Breaker from Feeder Bus & Fire Extinguished. Spare Breaker Installed PNO-I-85-066A, on 850911,licensee Implemented Maint/Test Procedure to Identify Cause of 850907 Fire in CRD Power Distribution Panels.Fire Caused by Overload of Rods on Auxiliary Power Supply,Causing Excessive Dc Current1985-09-13013 September 1985 PNO-I-85-066A:on 850911,licensee Implemented Maint/Test Procedure to Identify Cause of 850907 Fire in CRD Power Distribution Panels.Fire Caused by Overload of Rods on Auxiliary Power Supply,Causing Excessive Dc Current PNO-I-85-066, on 850907,fire Broke Out in Relay Room During CRD Surveillance Testing.Reactor Manually Tripped.Licensee Troubleshooting to Determine Cause1985-09-0909 September 1985 PNO-I-85-066:on 850907,fire Broke Out in Relay Room During CRD Surveillance Testing.Reactor Manually Tripped.Licensee Troubleshooting to Determine Cause 1997-03-28 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARIR 05000289/19990071999-09-27027 September 1999
[Table view]Insp Rept 50-289/99-07 on 990718-0828.No Violations Noted. Major Areas Inspected:Operations,Maint & Plant Support IR 05000289/19990041999-08-19019 August 1999 Insp Rept 50-289/99-04 on 990606-0717.Noncited Violations Noted.Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000289/19990051999-07-0909 July 1999 Insp Rept 50-289/99-05 on 990510-28.No Violations Noted. Major Areas Inspected:Effectiveness of Engineering Functions in Providing for Safe Operation of Plant IR 05000289/19990061999-07-0808 July 1999 Insp Rept 50-289/99-06 on 990608-11.No Violations Noted. Major Areas Inspected:Licensee Emergency Preparedness Plan IR 05000289/19990031999-06-29029 June 1999 Insp Rept 50-289/99-03 on 990425-0605.No Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support IR 05000289/19990021999-05-14014 May 1999 Insp Rept 50-289/99-02 on 990314-0424.Two Violations Noted & Being Treated as non-cited Violations.Major Areas Inspected: Aspects of Licensee Operations,Maint,Engineering & Plant Support.Security Program Met Safeguards Requirements IR 05000289/19990011999-04-16016 April 1999 Insp Rept 50-289/99-01 on 990131-0313.No Violations Noted. Major Areas Inspected:Operations,Engineering,Maint & Plant Support IR 05000289/19980091999-03-0505 March 1999 Insp Rept 50-289/98-09 on 981227-990130.Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support IR 05000289/19980081999-01-12012 January 1999 Insp Rept 50-289/98-08 on 981101-1226.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000289/19980071998-12-0303 December 1998 Insp Rept 50-289/98-07 on 980920-1031.No Violations Noted. Major Areas Inspected:Licensee Operations,Engineering,Maint & Plant Support,Including Results of Insps by Regional Inspector Re Emergency Preparedness & Radiological Controls ML20154L9821998-10-15015 October 1998 Notice of Violation from Insp on 980810-27.Violation Noted: in Oct 1997,change to Facility as Described in Section 6.1, Eccs,Of TMI-1 Ufsar,Involving Unreviewed Safety Question,Was Made Without Prior Commission Approval ML20154M0251998-10-15015 October 1998 Insp Rept 50-289/98-06 on 980810-27.Violations Noted.Major Areas Inspected:Engineering Activities Associated with Findings from NRC Architect Engineering Team Insp Completed in Jan 1997 & Documented in NRC Insp Rept 50-289/96-201 IR 05000289/19980051998-10-0202 October 1998 Insp Rept 50-289/98-05 on 980726-0919.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support.Security Facilities & Equipment Were Well Maintain, Reliable & Met Licensee Commitments & NRC Requirements ML20153E9471998-09-24024 September 1998 Exam Rept 50-289/98-301 Conducted on 980824-27.Exam Results: Four SRO Applicants Passed All Portions of Initial License Exam IR 05000289/19980031998-09-0404 September 1998 Insp Rept 50-289/98-03 on 980524-0725.No Violations Noted. Major Areas Inspected:Licensee Operations,Engineering,Maint & Plant Support IR 05000289/19980021998-06-22022 June 1998 Insp Rept 50-289/98-02 on 980322-0523.No Violations Noted. Major Areas Inspected:Aspects of Licensee Operations, Engineering,Maint & Plant Support IR 05000289/19980011998-04-0909 April 1998 Insp Rept 50-289/98-01 on 980125-0321.No Violations Noted. Major Areas Inspected:Plant Operations,Maint,Engineering & Plant Support ML20203L7821998-02-26026 February 1998 Notice of Violation from Insp on 971102-980124.Violation Noted:Licensee Not Review & Approve Substantive Change to Existing Inservice Test Surveillance Procedure. Page 25 of Incoming Submittal Not Included ML20197A8771998-02-26026 February 1998 SALP Rept 50-289/98-99 for Period 960805-980124 IR 05000289/19970101998-02-26026 February 1998 Insp Repts 50-289/97-10 & 50-320/97-03 on 971102-980124. Violations Noted.Major Areas Inspected:Maint,Engineering & Plant Support.License Operator Requalification Program, Corrective Actions Program & Security Also Inspected ML20199H6141998-01-27027 January 1998 Notice of Violation from Insp on 970907-1101.Violation Noted:Pressurizer Power Operated Relief Valve Was Returned to Svc Without Performing an IST to Verify Proper Valve Operation After Valve Replaced ML20203D7591997-12-0202 December 1997 Insp Rept 50-289/97-09 on 970907-1101.Violations Being Considered for Escalated Enforcement Action.Major Areas Inspected:Licensee Operations,Engineering,Maint & Plant Support Over 8 Wk Period PNO-I-97-068, on 971103,unplanned Shutdown Greater than 72 H Occurred.Oil Leaks Detected & Repaired.Third RCP Inspected & Engineers Found Low Seal Flow at Second Stage Pump Seal. Resident Inspectors Following Onsite Activities1997-11-0505 November 1997 PNO-I-97-068:on 971103,unplanned Shutdown Greater than 72 H Occurred.Oil Leaks Detected & Repaired.Third RCP Inspected & Engineers Found Low Seal Flow at Second Stage Pump Seal. Resident Inspectors Following Onsite Activities IR 05000289/19970081997-10-0909 October 1997 Insp Rept 50-289/97-08 on 970728-0906.No Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support & Results of Announced Insp in Area of Emergency Preparedness ML20217H3281997-10-0808 October 1997 Notice of Violation & Proposed Imposition of Civil Penalty in Amount of $210,000.Violation Noted:On 940601,design Bases Were Not Correctly Translated Into Operating Procedures Re Switchover of Dhrs Pumps from Bwst to Reactor Building Sump ML20198R2831997-10-0303 October 1997 EN-97-096:on 971008,notice of Proposed Imposition of Civil Penalty in Amount of $210,000 Issued to Licensee.Action Based on Violations Involving Design Engineering,Equipment Classification & Corrective Actions ML20210R9641997-08-19019 August 1997 Notice of Violation from Insp on 970616-0727.Violation Noted:Licensee Failed to Implement EP Implementing Procedure EPIP-TMI-.03,Exhibit 1, Emergency Notifications & Call Outs IR 05000289/19970061997-08-19019 August 1997 Insp Repts 50-289/97-06 & 50-320/97-02 on 970616-0727. Violations Noted.Major Areas Inspected:Licensee Operations, Engineering,Maint & Plant Support ML20210R9801997-08-19019 August 1997 Insp Repts 50-289/97-06 & 50-320/97-02 on 970616-0727. Violations Noted.Major Areas Inspected:Licensee Operations, Engineering,Maint & Plant Support ML20149K0171997-07-23023 July 1997 Insp Rept 50-289/97-07 on 970428-0502 & 0512-16.Violations Noted.Major Areas Inspected:Engineering ML20149K0081997-07-23023 July 1997 Notice of Violation from Insp on 970428-0502 & 0512-16. Violations Noted:On 970430,LER 97-03,did Not Contain Clear, Specific,Narrative Description of What Occurred IR 05000289/19970051997-07-11011 July 1997 Insp Rept 50-289/97-05 on 970428-0615.No Violations Noted. Major Areas Inspected:Plant Operations,Maint,Engineering & Plant Support ML20148S2321997-06-27027 June 1997 Insp Rept 50-289/97-04 on 970512-15.Violations Noted. Major Areas Inspected:Insp Evaluated Licensee Performance During Remedial EP Exercise IR 05000289/19970031997-05-29029 May 1997 Insp Rept 50-289/97-03 on 970303-0427.Apparent Violations Being Considered for Escalated Enforcement Action IAW NUREG-1600.Major Areas Inspected:Plant Operations,Maint, Engineering & Plant Support IR 05000289/19970021997-04-24024 April 1997 Insp Rept 50-289/97-02 on 970305-07.No Violations Noted. Major Areas Inspected:Insp Evaluated Licensee Emergency Response Capabilities Demonstrated During Biennial Full Participation EP Exercise ML20137W9391997-04-15015 April 1997 Insp Rept 50-289/96-201 on 961202-20 & 970106-10.No Violations Noted.Major Areas Inspected:Conduct of Engineering,Insp Scope & Methodology,Makeup & Purification Sys,Decay Heat Removal Sys & Control of Calculations PNO-I-97-018, on 970328,protest Related to TMI-2 Accident Occurred.Protesters Walked in Circle,Outside of Util Property,Blocking Plant Entrance Lane.Plant Notified NRC Headquarter to Inform of Event1997-03-28028 March 1997 PNO-I-97-018:on 970328,protest Related to TMI-2 Accident Occurred.Protesters Walked in Circle,Outside of Util Property,Blocking Plant Entrance Lane.Plant Notified NRC Headquarter to Inform of Event ML20140B7051997-03-21021 March 1997 Insp Repts 50-289/97-01 & 50-320/97-01 on 970106-970302. Violations Noted.Major Areas Inspected:Plant Operations, Maintenance,Engineering & Plant Support IR 05000289/19960091997-01-22022 January 1997 Insp Rept 50-289/96-09 on 961119-970105.No Violations Noted. Major Areas Inspected:Operations,Engineering,Maint & Plant Support ML20135F1641996-12-0606 December 1996 Notice of Violation from Insp on 960929-1118.Violation Noted:Scaffold tied-off & Supported by Safety Related Pipe Support for Nuclear River Water Sys W/O Prior Engineering Evaluation & Approval IR 05000289/19960071996-11-18018 November 1996 Insp Rept 50-289/96-07 on 960929-1118.Violations Noted. Major Areas Inspected:Conduct of Operations, Quality Assurance in Operations & Conduct of Maint ML20135B0901996-11-14014 November 1996 Insp Rept 50-289/96-06 on 960804-0928.Violations Noted.Major Areas Inspected:Plant Operations,Engineering,Maint & Plant Support ML20135B0851996-11-14014 November 1996 Notice of Violation from Insp on 960804-0928.Violation Noted:Improper Control of Posted High Radiation Area Entrance IR 05000289/19960081996-11-0707 November 1996 Insp Rept 50-289/96-08 on 960603-07 & 0926-27.No Violations Noted.Major Areas Inspected:Maintenance ML20129B3761996-09-13013 September 1996 Insp Rept 50-289/96-05 on 960617-0803.Violations Noted. Major Areas Inspected:Plant Operations,Maint,Engineering & Plant Support ML20129B3601996-09-13013 September 1996 Notice of Violation from Insp on 960617-0803.Violation Noted:Inspectors Could Not Confirm Valve Factor Inputs to Calculations Which Establish Design Basis Functionality of Motor Operated Valves in Safety Re Applications IR 05000289/19930251994-01-0404 January 1994 Insp Rept 50-289/93-25 on 931026-1206.No Violations Noted. Major Areas Inspected:Plant Operations,Maintenance, Engineering,Radiological Controls,& Security Activities in Relation to Plant Safety IR 05000320/19930071993-12-23023 December 1993 Insp Rept 50-320/93-07 on 931101-1217.No Violations Noted. Major Areas Inspected:Licensee Completion of Pdms Requirements & Commitments for TMI-2 ML20058A4891993-11-12012 November 1993 Notice of Violation from Insp on 931004-08.Violation Noted: Several Examples of High Radiation Areas Where Licensee Did Not Barricade or Properly Control Access to Prevent Inadvertent Entry IR 05000289/19930221993-11-0909 November 1993 Insp Rept 50-289/93-22 on 930910-1025.Violation Noted But Not Cited.Major Areas Inspected:Plant Operations,Maint, Engineering,Radiological Controls & Security Activities as Related to Plant Safety 1999-09-27 |
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t DCS No: 502898509 Date: September 27, 1985 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-I-85-67A This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region I staff on this date.
Facility: GPU Nuclear Corporation Licensee Emergency Classification:
Three Mile Island, Unit 1 Notification of Unusual Event Docket Number 50-289 Alert Site Area Emergency General Emergency X Not Applicable
Subject:
REACTOR PROTECTION SYSTEM BREAKER MALFUNCTION (UPDATE)
The licensee removed the failed breaker (GE Model AK-2-25) and examined it on September 24 and 25 to attempt to determine the failure mode. Vendor representatives partici-pated in this process. The TMI-1 Restart Staff examined the breaker and met with the licensee on September 25 to obtain the current findings of the licensee's examination.
The failure was diagnosed by the licensee as mechanical binding within the breaker closure assembly. Two rotating members (one adjacent to the other that normally come together positioning one on top of the other during closure) became laterally displaced and rotated into a bound configuration during the closure process. As a result, the breaker would not fully open or close from the failed mid position. The GE represen-tative was not aware of any prior failures of this type on their breakers.
The failed breaker and the installed breakers were shipped offsite in late 1984 and early 1985 for modifications which involved some disassembly of the breaker. The licensee is attempting to determine whether the problem resulted from that activity.
The breaker, which is an original component of TMI-1, was installed in the plant in early June 1985 subsequent to the modification and removed in July 1985 from the dis-tribution panel for an apparently unrelated problem of immediately tripping upon closure. It was later installed on September 15, successfully tested on September 16, and failed during testing on September 23.
~ CONTACT: R. Startostec W. Kane 488-1229 590-1167 DISTRIBUTION:
H. St. MNBB Phillips E/W Willste Mail: ADM:DMB Chairman Palladino EDO NRR IE NMSS DOT:Trans only Comm. Zech PA OIA RES Comm. Bernthal ELD AE00 Comm. Roberts Comm. Asselstine ACRS Air Rights INP0--
G7 SECY SP NSAC4,yg--
CA PDR Regional Offices TMI Resident Section RI Resident Office p.12 Licensee:
(Reactor Licensees) ,
Region I Form 83 g % g 66 850927 (Rev. July, 1984) PNO-I-85-067A PDR 6
PNO-I'~15-67A ~ 2 Th] lic:nsta completed its inspection of the 2 AC and 4 DC breakers that are currently installed for the rod control system. The licensee factored into the inspection
-criteria the observations of visual damage and physical dimensions from the failed br;aksr. No significant discrepancies were identified for the 4 DC breakers, but one of tha 2 AC breakers had a metal discoloration (evidence of wear) in the same area of tha breaker closure assembly where mechanical binding was noted on the failed breaker.
Th2 licensee is continuing to evaluate the implication of the breaker failure and, as of this time, has not presented its final position to the TMI-1 Restart Staff. The TMI-I Restart Staff is evaluating current information and obtaining a machinery history for the breaker modifications maintenance and testing.
-The TMI-1 Restart Staff will follow the licensee's actions and is independently revi,twing the breaker history.
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