PNO-I-99-028, on 990608,Susquehanna Unit 2 Automatically Shut Down from 100% Power,Due to Failure in a Main Transformer. Region I Public Affairs Prepared to Respond to Media Inquires.Resident Inspectors on-site & Responded
From kanterella
| ML20195D943 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 06/09/1999 |
| From: | Cowgill C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| References | |
| PNO-I-99-028, PNO-I-99-28, NUDOCS 9906100090 | |
| Download: ML20195D943 (1) | |
Similar Documents at Susquehanna | |
|---|---|
Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-I-99-028, on 990608,Susquehanna Unit 2 Automatically Shut Down from 100% Power,Due to Failure in a Main Transformer. Region I Public Affairs Prepared to Respond to Media Inquires.Resident Inspectors on-site & Responded1999-06-0909 June 1999
[Table view]PNO-I-99-028:on 990608,Susquehanna Unit 2 Automatically Shut Down from 100% Power,Due to Failure in a Main Transformer. Region I Public Affairs Prepared to Respond to Media Inquires.Resident Inspectors on-site & Responded PNO-I-93-059, on 931026,unexpected Drop of Section of Refueling Mast Occurred While Lowering Bundle in Core.Maint Investigated & Discovered Bend in Mast.Licensee Determined Fuel Bundle Did Not Drop During Event1993-10-29029 October 1993 PNO-I-93-059:on 931026,unexpected Drop of Section of Refueling Mast Occurred While Lowering Bundle in Core.Maint Investigated & Discovered Bend in Mast.Licensee Determined Fuel Bundle Did Not Drop During Event PNO-I-87-119, on 871223,reactor Scrammed Due to Leak from Intermediate Waterbox Manway C.Caused by Failure of Manway Gasket.Waterbox C Isolated & Spill Terminated.Water in Condenser Bay Area Measured 43 Inches1987-12-24024 December 1987 PNO-I-87-119:on 871223,reactor Scrammed Due to Leak from Intermediate Waterbox Manway C.Caused by Failure of Manway Gasket.Waterbox C Isolated & Spill Terminated.Water in Condenser Bay Area Measured 43 Inches PNO-I-87-079, on 870810,shift Supervisor Relieved of Duties Based on Results of Preliminary Investigation Into Allegation of Being Inattentive During Midnight Shift. Allegations Found Credible.Mgt Meeting W/Nrc Planned1987-08-12012 August 1987 PNO-I-87-079:on 870810,shift Supervisor Relieved of Duties Based on Results of Preliminary Investigation Into Allegation of Being Inattentive During Midnight Shift. Allegations Found Credible.Mgt Meeting W/Nrc Planned ML20214N4621987-05-27027 May 1987 PNS-I-87-008:on 870526,secondary Alarm Station Operator Received Telephone Bomb Threat.Licensee Implemented Search Procedures.Search Completed W/Negative Results.Commonwealth of PA Police Notified PNO-I-87-032, on 870415,Unit 1 Shut Down After Licensee Unable to Successfully Perform Local Leak Rate Test on Three Containment Isolation Valves in Drywell Purge Exhaust Line. on 870416,Unit 2 Tripped Due to MSIV Closure1987-04-16016 April 1987 PNO-I-87-032:on 870415,Unit 1 Shut Down After Licensee Unable to Successfully Perform Local Leak Rate Test on Three Containment Isolation Valves in Drywell Purge Exhaust Line. on 870416,Unit 2 Tripped Due to MSIV Closure PNO-I-86-097, on 861210,gas Leakage Initially Detected in Inboard MSIVs & Confirmed on 861211 While Testing Inboard MSIV B.Valve Maintained Closed & Unit Shutdown to Repair Gas Sys.Facility to Be Restarted by 8612141986-12-12012 December 1986 PNO-I-86-097:on 861210,gas Leakage Initially Detected in Inboard MSIVs & Confirmed on 861211 While Testing Inboard MSIV B.Valve Maintained Closed & Unit Shutdown to Repair Gas Sys.Facility to Be Restarted by 861214 PNO-I-86-088, on 861022,during Testing of HPCI Sys,Steam Accidentally Released Into RHR Pump Room.Caused by Two Mispositioned Drain Valves in Piping Associated W/Steam Condensing Mode of RHR Sys.State of PA Notified1986-10-23023 October 1986 PNO-I-86-088:on 861022,during Testing of HPCI Sys,Steam Accidentally Released Into RHR Pump Room.Caused by Two Mispositioned Drain Valves in Piping Associated W/Steam Condensing Mode of RHR Sys.State of PA Notified PNO-I-86-087, on 861022,approx 3,000 Gallons of Liquid Radwaste Spilled on Floor of Radwaste Bldg.Caused by Isolation Valve Leak.Spill Cleaned Up.Decontamination of Affected Areas Underway1986-10-22022 October 1986 PNO-I-86-087:on 861022,approx 3,000 Gallons of Liquid Radwaste Spilled on Floor of Radwaste Bldg.Caused by Isolation Valve Leak.Spill Cleaned Up.Decontamination of Affected Areas Underway PNO-I-86-052, on 860717,reactor Scrammed Due to Unidentified Coolant Leakage.Licensee Entered Drywell on 860718 & Identified LPCI Testable Check Valve as Source of Leakage. Repairs to Valve Scheduled for Completion on 8607201986-07-18018 July 1986 PNO-I-86-052:on 860717,reactor Scrammed Due to Unidentified Coolant Leakage.Licensee Entered Drywell on 860718 & Identified LPCI Testable Check Valve as Source of Leakage. Repairs to Valve Scheduled for Completion on 860720 PNO-I-86-039, on 860521,emergency Svc Water Pump C Motor Ran W/O Indication of Flow.Caused by Separation of Suction Bell & Severance of Shaft Near Impeller,Discovered on 860523. Pump Temporarily Repaired.Parts on Order1986-05-27027 May 1986 PNO-I-86-039:on 860521,emergency Svc Water Pump C Motor Ran W/O Indication of Flow.Caused by Separation of Suction Bell & Severance of Shaft Near Impeller,Discovered on 860523. Pump Temporarily Repaired.Parts on Order PNO-I-86-023, on 860321,while Replacing CRD Housing Support Underneath Reactor Vessel,Platform Gave Way Injuring & Contaminating Work Person.Employee Decontaminated Onsite Prior to Transfer to Hosp1986-03-24024 March 1986 PNO-I-86-023:on 860321,while Replacing CRD Housing Support Underneath Reactor Vessel,Platform Gave Way Injuring & Contaminating Work Person.Employee Decontaminated Onsite Prior to Transfer to Hosp PNO-I-86-022, on 860321,util Workman Fell 10 Ft to Subpile Floor Injuring Right Knee While Replacing Control Rod Housing Support.Caused When Platform Grating Gave Way. Worker Decontaminated & Hospitalized1986-03-24024 March 1986 PNO-I-86-022:on 860321,util Workman Fell 10 Ft to Subpile Floor Injuring Right Knee While Replacing Control Rod Housing Support.Caused When Platform Grating Gave Way. Worker Decontaminated & Hospitalized PNO-I-86-003, on 860115,reactor Manually Scrammed After Power Reduction to 70%.Caused When Oil Observed Spraying from Main Transformer.Oil Spray Caused by Excessive Heat Buildup.Transformer Will Be Inspected & Repaired1986-01-16016 January 1986 PNO-I-86-003:on 860115,reactor Manually Scrammed After Power Reduction to 70%.Caused When Oil Observed Spraying from Main Transformer.Oil Spray Caused by Excessive Heat Buildup.Transformer Will Be Inspected & Repaired PNO-I-85-090, on 851202,Units I & II Tripped from Full & 80% Power,Respectively.Caused by Deenergization of Engineered Safeguards Svc Transformer III & Momentary Loss of Control to Reactor Feed Pumps.Transformer Being Tested1985-12-0303 December 1985 PNO-I-85-090:on 851202,Units I & II Tripped from Full & 80% Power,Respectively.Caused by Deenergization of Engineered Safeguards Svc Transformer III & Momentary Loss of Control to Reactor Feed Pumps.Transformer Being Tested PNO-I-85-078A, on 851011,reactor Coolant Spill from RWCU Sys to 779 Ft Elevation of Reactor Bldg Occurred.Caused by Lifting of 150 Psig Precoat Feed Relief Valve.Spill Cleaned & Access to Area Restored1985-10-11011 October 1985 PNO-I-85-078A:on 851011,reactor Coolant Spill from RWCU Sys to 779 Ft Elevation of Reactor Bldg Occurred.Caused by Lifting of 150 Psig Precoat Feed Relief Valve.Spill Cleaned & Access to Area Restored PNO-I-85-078, on 851011,isolation Valve to Low Pressure Sys Piping Opened & Discharge of Reactor Coolant to Cleanup Demineralizer Precoat Pump Area Occurred.Cause Under Investigation.Cleanup in Progress1985-10-11011 October 1985 PNO-I-85-078:on 851011,isolation Valve to Low Pressure Sys Piping Opened & Discharge of Reactor Coolant to Cleanup Demineralizer Precoat Pump Area Occurred.Cause Under Investigation.Cleanup in Progress PNO-I-85-046, on 850630,reactor Scrammed from 100% Power Due to Generator Load Reject.Caused by Generator Neutral Phase Overvoltage Condition.Test & Repairs Will Be Completed by 8507071985-07-0303 July 1985 PNO-I-85-046:on 850630,reactor Scrammed from 100% Power Due to Generator Load Reject.Caused by Generator Neutral Phase Overvoltage Condition.Test & Repairs Will Be Completed by 850707 PNO-I-84-060, on 840703,cold Shutdown Plant Condition Following Reactor Scram from 100% Power1984-07-0606 July 1984 PNO-I-84-060:on 840703,cold Shutdown Plant Condition Following Reactor Scram from 100% Power ML20236F0101976-12-21021 December 1976 PNO-76-223:local of Painters Union at Construction Site Has Been Attempting to Organize Level I Concrete Testers Since Oct 1976.Union Indicated That Allegations May Be Made Re Substandard Concrete Testing Practices ML20249B3101976-06-16016 June 1976 PNO-76-101:issue Involving Low Concrete Cylinder Compressive in Both Safety Related & non-safety Related Structures Being Followed by Region I ML20236F2701976-06-0404 June 1976 PNS-76-024:on 760604,Bloomsburg Bell Telephone Co Received Phone Call That Bomb Will Go Off at Susquehanna Site.Call Traced to Pay Phone.State Police Investigating Bomb Threat ML20236F4131976-03-0808 March 1976 PNS-76-009:on 760308,licensee Nondestructive Testing Subcontractor Received Call Re 2 Bombs Placed at Site. Security & Supervisory People Conducting Search.Fbi Notified by Licensee ML20236F4541976-03-0505 March 1976 PNS-76-006:on 760305,Pennsylvania State Police Received Phone Call Re Bomb Threat.Licensee Security Force & State Police Searching for Bomb.Evacuation of Site Not Planned.Fbi Notified ML20236F3911976-02-0404 February 1976 PNS-76-002:on 760204,New York State Police Received Call, Informing Them That Bomb Placed at Susquehanna Site & Set to Go Off at 11:00 Am on That Date.Police Notified Licensee. Licensee Security Force & Police Searching for Bomb 1999-06-09 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARPNO-I-99-028, on 990608,Susquehanna Unit 2 Automatically Shut Down from 100% Power,Due to Failure in a Main Transformer. Region I Public Affairs Prepared to Respond to Media Inquires.Resident Inspectors on-site & Responded1999-06-0909 June 1999
[Table view]PNO-I-99-028:on 990608,Susquehanna Unit 2 Automatically Shut Down from 100% Power,Due to Failure in a Main Transformer. Region I Public Affairs Prepared to Respond to Media Inquires.Resident Inspectors on-site & Responded ML20198M1681998-01-0909 January 1998 Notice of Violation & Proposed Imposition of Civil Penalty in Amount of $55,000.Violation Noted:As of 970711,licensee Failed to Establish Adequate Controls for Activities Affecting Quality of EDGs ML20141D5561997-06-20020 June 1997 Notice of Violation & Proposed Imposition of Civil Penalty in Amount of $210,000.Violation Noted:Less than Four Independent DGs Were Operable & Neither Unit Was Placed in Hot Shutdown IR 05000387/19970011997-03-14014 March 1997 Insp Repts 50-387/97-01 & 50-388/97-01 on 970114-0224. Violations Noted.Major Areas Inspected:Operations, Engineering,Maint & Plant Support ML20136J3651997-03-14014 March 1997 Notice of Violations from Insp on 970114-0224.Violations Noted:Operators Failed to Ensure Automatic Actions Occurred After Unit 2 Recomb Discharge H2 Conc Hi-Hiannunciator Alarmed & After Grab Sample Show H Concentration of 8% ML20216B7331997-01-30030 January 1997 Investigation Rept 1-96-039 on 961018.No Noncompliance Noted.Major Areas Investigated:Review of PP&L Internal Investigation & Audit Repts Re Failure of NPO to Detect Misalignment of E DG Breaker from 960614 to 0704 ML20149J2871996-02-0909 February 1996 Notice of Violation & Proposed Imposition of Civil Penalty in Amount of $100,000.Violation Noted:Pp&L Discriminated Against Senior Security Officer After Concerns to NRC in 1992 Re Administration of Security Requalification Exam PNO-I-93-059, on 931026,unexpected Drop of Section of Refueling Mast Occurred While Lowering Bundle in Core.Maint Investigated & Discovered Bend in Mast.Licensee Determined Fuel Bundle Did Not Drop During Event1993-10-29029 October 1993 PNO-I-93-059:on 931026,unexpected Drop of Section of Refueling Mast Occurred While Lowering Bundle in Core.Maint Investigated & Discovered Bend in Mast.Licensee Determined Fuel Bundle Did Not Drop During Event IR 05000387/19900131990-07-11011 July 1990 Insp Repts 50-387/90-13 & 50-388/90-13 on 900625-29.No Violations Noted.Major Areas Inspected:Licensee Radiological Environ Monitoring & Radioactive Effluent Control Programs, Including Mgt Controls & Calibr of Effluent Monitors IR 05000387/19890171989-08-15015 August 1989 Insp Repts 50-387/89-17 & 50-388/89-15 on 890619-23 & 0718 & 19.No Noncompliance Noted.Major Areas Inspected:Mgt Support, Security Program Plans & Audits,Protected & Vital Area Physical Barriers,Emergency Power Supply & Testing ML20247K6691989-05-19019 May 1989 Partially Withheld Notice of Violation Resulting from Investigation to Determine Whether Willful Matl False Statement Was Made in Physical Security Plan (Ref 10CFR2.790(a)) ML20148A5861988-03-14014 March 1988 Notice of Violation from Insp on 880104-0213.Violation Noted:On 880112,areas W/Dose Rates of Up to 400 M/H,Which Constitute High Radiation Areas Not Posted as Required IR 05000387/19880021988-02-19019 February 1988 Insp Repts 50-387/88-02 & 50-388/88-02 on 880104-07.No Violations Noted.Major Areas Inspected:Security Organization & Program Audit,Lighting,Assessment Aids,Access Control, Alarm Stations & Followup to Unresolved Items PNO-I-87-119, on 871223,reactor Scrammed Due to Leak from Intermediate Waterbox Manway C.Caused by Failure of Manway Gasket.Waterbox C Isolated & Spill Terminated.Water in Condenser Bay Area Measured 43 Inches1987-12-24024 December 1987 PNO-I-87-119:on 871223,reactor Scrammed Due to Leak from Intermediate Waterbox Manway C.Caused by Failure of Manway Gasket.Waterbox C Isolated & Spill Terminated.Water in Condenser Bay Area Measured 43 Inches IR 05000387/19870201987-12-0707 December 1987 Insp Repts 50-387/87-20 & 50-388/87-18 on 871027-30.No Violation or Deviation Noted.Major Areas Inspected:Nuclear Matl Control & Accounting,Including Shipping & Receiving, Organization & Operation & Storage & Internal Control IR 05000387/19870151987-11-17017 November 1987 Exam Repts 50-387/87-15OL & 50-388/87-15OL on 870911.Exam Results:One Senior Reactor Operator Candidate Passed Exam. Weaknesses Noted PNO-I-87-079, on 870810,shift Supervisor Relieved of Duties Based on Results of Preliminary Investigation Into Allegation of Being Inattentive During Midnight Shift. Allegations Found Credible.Mgt Meeting W/Nrc Planned1987-08-12012 August 1987 PNO-I-87-079:on 870810,shift Supervisor Relieved of Duties Based on Results of Preliminary Investigation Into Allegation of Being Inattentive During Midnight Shift. Allegations Found Credible.Mgt Meeting W/Nrc Planned ML20214N4621987-05-27027 May 1987 PNS-I-87-008:on 870526,secondary Alarm Station Operator Received Telephone Bomb Threat.Licensee Implemented Search Procedures.Search Completed W/Negative Results.Commonwealth of PA Police Notified IR 05000387/19870051987-05-0707 May 1987 Exam Repts 50-387/87-05OL & 50-388/87-05OL on 870316-19. Exam Results:Three Out of Five Senior Reactor Operators & Two Out of Four Reactor Operators Issued Licenses.Exam & Answer Key Encl PNO-I-87-032, on 870415,Unit 1 Shut Down After Licensee Unable to Successfully Perform Local Leak Rate Test on Three Containment Isolation Valves in Drywell Purge Exhaust Line. on 870416,Unit 2 Tripped Due to MSIV Closure1987-04-16016 April 1987 PNO-I-87-032:on 870415,Unit 1 Shut Down After Licensee Unable to Successfully Perform Local Leak Rate Test on Three Containment Isolation Valves in Drywell Purge Exhaust Line. on 870416,Unit 2 Tripped Due to MSIV Closure IR 05000387/19870071987-03-26026 March 1987 Partially Withheld Physical Security Insp Repts 50-387/87-07 & 50-388/87-07 on 870302-06 (Ref 10CFR73.21 & 2.790).Major Areas Inspected:Programmatic Review of NRC Approved Physical Security & Security Contingency Plans IR 05000387/19870041987-03-10010 March 1987 Insp Repts 50-387/87-04 & 50-388/87-04 on 870209-13.No Violations or Deviations Noted.Major Areas Inspected: Nonlicensed Staff Training IR 05000387/19870021987-03-0505 March 1987 Insp Repts 50-387/87-02 & 50-388/87-02 on 870106-0217.No Violations Noted.Major Areas Inspected:Operations,Licensee Event Followup,Esf Sys Walkdown,Open Item Followup, Surveillance,Maint & Followup of Industry Events IR 05000387/19870031987-03-0404 March 1987 Insp Repts 50-387/87-03 & 50-388/87-03 on 870209-13.No Violations Noted.Major Areas Inspected:Nonradiological Chemistry Program,Including Measurement Control & Analytical Procedures Evaluation IR 05000387/19870011987-02-12012 February 1987 Insp Repts 50-387/87-01 & 50-388/87-01 on 870112-16. No Violations or Deviations Noted.Major Areas Inspected: Environ Monitoring Programs for Operations,Including Mgt Controls for Listed Programs ML20211B1211987-02-0909 February 1987 Notice of Violation from Insp on 861202-870105 IR 05000387/19860271987-02-0909 February 1987 Insp Repts 50-387/86-27 & 50-388/86-30 on 861202-870105. Violation Noted:Inoperability of Station Battery Supplying Common Loads IR 05000387/19860251987-01-30030 January 1987 Insp Repts 50-387/86-25 & 50-388/86-28 on 861117-21. Deficiencies Noted:Failure to Demonstrate Qualification of Valcor High Temp Wire,Rockbestos Coaxial Cables & Raychem Cable Splices.Unresolved Items Listed PNO-I-86-097, on 861210,gas Leakage Initially Detected in Inboard MSIVs & Confirmed on 861211 While Testing Inboard MSIV B.Valve Maintained Closed & Unit Shutdown to Repair Gas Sys.Facility to Be Restarted by 8612141986-12-12012 December 1986 PNO-I-86-097:on 861210,gas Leakage Initially Detected in Inboard MSIVs & Confirmed on 861211 While Testing Inboard MSIV B.Valve Maintained Closed & Unit Shutdown to Repair Gas Sys.Facility to Be Restarted by 861214 PNO-I-86-088, on 861022,during Testing of HPCI Sys,Steam Accidentally Released Into RHR Pump Room.Caused by Two Mispositioned Drain Valves in Piping Associated W/Steam Condensing Mode of RHR Sys.State of PA Notified1986-10-23023 October 1986 PNO-I-86-088:on 861022,during Testing of HPCI Sys,Steam Accidentally Released Into RHR Pump Room.Caused by Two Mispositioned Drain Valves in Piping Associated W/Steam Condensing Mode of RHR Sys.State of PA Notified PNO-I-86-087, on 861022,approx 3,000 Gallons of Liquid Radwaste Spilled on Floor of Radwaste Bldg.Caused by Isolation Valve Leak.Spill Cleaned Up.Decontamination of Affected Areas Underway1986-10-22022 October 1986 PNO-I-86-087:on 861022,approx 3,000 Gallons of Liquid Radwaste Spilled on Floor of Radwaste Bldg.Caused by Isolation Valve Leak.Spill Cleaned Up.Decontamination of Affected Areas Underway ML20205H3331986-08-14014 August 1986 Notice of Deviation from Insp on 860512-16.Appraisals of Unresolved & Open Items Also Encl IR 05000387/19860101986-08-13013 August 1986 Emergency Response Appraisal Repts 50-387/86-10 & 50-388/ 86-10 on 860512-16.One Deviation & Three Unresolved Items Noted:Calibr Procedure for Delta Temp Instrumentation Did Not Include Actual Sensor Calibr IR 05000387/19860131986-07-24024 July 1986 Insp Repts 50-387/86-13 & 50-388/86-13 on 860707-11.No Violations Noted.Major Areas Inspected:Qa & QC Program Changes,Qa Audit Program,Receipt,Storage & Handling Program for Equipment & Matl & Procurement Control Program PNO-I-86-052, on 860717,reactor Scrammed Due to Unidentified Coolant Leakage.Licensee Entered Drywell on 860718 & Identified LPCI Testable Check Valve as Source of Leakage. Repairs to Valve Scheduled for Completion on 8607201986-07-18018 July 1986 PNO-I-86-052:on 860717,reactor Scrammed Due to Unidentified Coolant Leakage.Licensee Entered Drywell on 860718 & Identified LPCI Testable Check Valve as Source of Leakage. Repairs to Valve Scheduled for Completion on 860720 PNO-I-86-039, on 860521,emergency Svc Water Pump C Motor Ran W/O Indication of Flow.Caused by Separation of Suction Bell & Severance of Shaft Near Impeller,Discovered on 860523. Pump Temporarily Repaired.Parts on Order1986-05-27027 May 1986 PNO-I-86-039:on 860521,emergency Svc Water Pump C Motor Ran W/O Indication of Flow.Caused by Separation of Suction Bell & Severance of Shaft Near Impeller,Discovered on 860523. Pump Temporarily Repaired.Parts on Order IR 05000388/19860071986-05-21021 May 1986 Insp Rept 50-388/86-07 on 860407-09.No Violations Noted. Major Areas Inspected:Emergency Preparedness Insp & Observation of partial-scale Annual Emergency Exercise Conducted on 860408 ML20202F3161986-04-0404 April 1986 Notice of Violation from Insp on 860203-0314 IR 05000387/19860011986-04-0101 April 1986 Exam Repts 50-387/86-01 & 50-388/86-01 on 860114-16. Exam Results:All Six Candidates Passed IR 05000387/19860021986-03-27027 March 1986 Insp Repts 50-387/86-02 & 50-388/86-01 on 860203-0314. Violation Noted:Rhr Pump Operated W/O Cooling Water Due to Valve Misalignment & Installation of Expired Squib Valve in Standby Liquid Control Sys PNO-I-86-022, on 860321,util Workman Fell 10 Ft to Subpile Floor Injuring Right Knee While Replacing Control Rod Housing Support.Caused When Platform Grating Gave Way. Worker Decontaminated & Hospitalized1986-03-24024 March 1986 PNO-I-86-022:on 860321,util Workman Fell 10 Ft to Subpile Floor Injuring Right Knee While Replacing Control Rod Housing Support.Caused When Platform Grating Gave Way. Worker Decontaminated & Hospitalized PNO-I-86-023, on 860321,while Replacing CRD Housing Support Underneath Reactor Vessel,Platform Gave Way Injuring & Contaminating Work Person.Employee Decontaminated Onsite Prior to Transfer to Hosp1986-03-24024 March 1986 PNO-I-86-023:on 860321,while Replacing CRD Housing Support Underneath Reactor Vessel,Platform Gave Way Injuring & Contaminating Work Person.Employee Decontaminated Onsite Prior to Transfer to Hosp PNO-I-86-003, on 860115,reactor Manually Scrammed After Power Reduction to 70%.Caused When Oil Observed Spraying from Main Transformer.Oil Spray Caused by Excessive Heat Buildup.Transformer Will Be Inspected & Repaired1986-01-16016 January 1986 PNO-I-86-003:on 860115,reactor Manually Scrammed After Power Reduction to 70%.Caused When Oil Observed Spraying from Main Transformer.Oil Spray Caused by Excessive Heat Buildup.Transformer Will Be Inspected & Repaired PNO-I-85-090, on 851202,Units I & II Tripped from Full & 80% Power,Respectively.Caused by Deenergization of Engineered Safeguards Svc Transformer III & Momentary Loss of Control to Reactor Feed Pumps.Transformer Being Tested1985-12-0303 December 1985 PNO-I-85-090:on 851202,Units I & II Tripped from Full & 80% Power,Respectively.Caused by Deenergization of Engineered Safeguards Svc Transformer III & Momentary Loss of Control to Reactor Feed Pumps.Transformer Being Tested IR 05000387/19850251985-10-21021 October 1985 Exam Repts 50-387/85-25 & 50-388/85-27 on 850806-07.Exam Results:Seven Reactor Operator Candidates Passed Oral, Simulator & Written Sections of Exams PNO-I-85-078A, on 851011,reactor Coolant Spill from RWCU Sys to 779 Ft Elevation of Reactor Bldg Occurred.Caused by Lifting of 150 Psig Precoat Feed Relief Valve.Spill Cleaned & Access to Area Restored1985-10-11011 October 1985 PNO-I-85-078A:on 851011,reactor Coolant Spill from RWCU Sys to 779 Ft Elevation of Reactor Bldg Occurred.Caused by Lifting of 150 Psig Precoat Feed Relief Valve.Spill Cleaned & Access to Area Restored PNO-I-85-078, on 851011,isolation Valve to Low Pressure Sys Piping Opened & Discharge of Reactor Coolant to Cleanup Demineralizer Precoat Pump Area Occurred.Cause Under Investigation.Cleanup in Progress1985-10-11011 October 1985 PNO-I-85-078:on 851011,isolation Valve to Low Pressure Sys Piping Opened & Discharge of Reactor Coolant to Cleanup Demineralizer Precoat Pump Area Occurred.Cause Under Investigation.Cleanup in Progress IR 05000387/19850291985-09-23023 September 1985 Meeting Repts 50-387/85-29 & 50-388/85-24 on 850828 Re Rescheduling of Senior Reactor Operator Licensing Exam. Region Agreed to Administer One Instructor Certification & One Senior Operator Exam on 851120 & 21,respectively PNO-I-85-046, on 850630,reactor Scrammed from 100% Power Due to Generator Load Reject.Caused by Generator Neutral Phase Overvoltage Condition.Test & Repairs Will Be Completed by 8507071985-07-0303 July 1985 PNO-I-85-046:on 850630,reactor Scrammed from 100% Power Due to Generator Load Reject.Caused by Generator Neutral Phase Overvoltage Condition.Test & Repairs Will Be Completed by 850707 IR 05000387/19850141985-05-24024 May 1985 Insp Repts 50-387/85-14 & 50-388/85-14 on 850430-0503.No Violations Identified.Major Areas Inspected:Emergency Preparedness & full-scale Annual Emergency Exercise on 850501 1999-06-09 |