ML20248J763
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| ML20248J763 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 04/17/1978 |
| From: | Klingler G, Nolan F, Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| References | |
| PNO-78-082, PNO-78-82, NUDOCS 9806090295 | |
| Download: ML20248J763 (1) | |
Similar Documents at Browns Ferry | |
|---|---|
Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-II-97-014, on 970305,Unit 3 Experienced Loss of Offsite Power & Declared Notification of Unusual Event.Unit 2 Operating at 100 Percent During Event & Unaffected.Unit 1 in Long Term Shutdown Condition & Also Unaffected1997-03-0505 March 1997
[Table view]PNO-II-97-014:on 970305,Unit 3 Experienced Loss of Offsite Power & Declared Notification of Unusual Event.Unit 2 Operating at 100 Percent During Event & Unaffected.Unit 1 in Long Term Shutdown Condition & Also Unaffected PNO-II-91-039, on 910625,licensee Mgt Completed Third Mgt Assessment After Completion of HPCI & RCIC Quick Start Testing1991-06-26026 June 1991 PNO-II-91-039:on 910625,licensee Mgt Completed Third Mgt Assessment After Completion of HPCI & RCIC Quick Start Testing ML20247G6941989-03-23023 March 1989 PNO-ADSP-89-001:on 890317,GE-supplied Cables in Nuclear Instrumentation Sys Found Deteriorated W/Rubber Insulation Brittle & Cracked W/Portions of Conductor Exposed.Ge Has Obtained Sample Cable for Further Analysis ML20212E3171987-12-0707 December 1987 PNO-OSP-87-014:on 871206,telephone Call Came in Threatening That Fire Will Start If Drywell Opened.Licensee Notified FBI & State Local Officials ML20212E2601987-11-18018 November 1987 PNO-OSO-87-012B:updates PNO-OSP-87-012 & PNO-OSP-87-012A Issued on 871102 & 06,respectively.Cause of Fire Which Occurred 871102 in Electrical Wiring in Cable Tray Had Not Yet Been Determined PNO-II-87-012, A:on 871102,fire Occurred in Electrical Wiring in Cable Tray Adjacent to Drywell Penetration Ee Has Not Been Determined.Steps to Ensure That Equipment & Areas Affected Are Not Disturbed Until Investigation Completed1987-11-0606 November 1987 PNO-II-87-012-A:on 871102,fire Occurred in Electrical Wiring in Cable Tray Adjacent to Drywell Penetration Ee Has Not Been Determined.Steps to Ensure That Equipment & Areas Affected Are Not Disturbed Until Investigation Completed ML20212E2271987-11-0202 November 1987 PNO-OSP-87-012:on 871102 Fire Occurred in Electrical Wiring to Drywell Blowers at Drywell Penetration Ee in Unit 2. Caused by Damaged Cables ML20212E7111986-10-20020 October 1986 PNO-II-86-75A:on 850304,about 10 Grams of U-225 Contained in Five Fission Chambers Shipped W/Radwaste Package to Richland,Wa Low Level Disposal Site PNO-II-86-075, Region II Received Rept Re Five Fission Detectors,Each Containing Approx 2 G High Enriched U, Identified as Missing in Jul 1986.Matl Believed Included in 1985 Radwaste Shipment.Region II Specialist Sent to Site1986-10-15015 October 1986 PNO-II-86-075:Region II Received Rept Re Five Fission Detectors,Each Containing Approx 2 G High Enriched U, Identified as Missing in Jul 1986.Matl Believed Included in 1985 Radwaste Shipment.Region II Specialist Sent to Site PNO-II-86-062, on 860903,telephone Bomb Threat Received at Central Alarm Station.Unusual Event Declared.No Bomb Found During Bldg Search.Security Personnel Continuing Investigation1986-09-0303 September 1986 PNO-II-86-062:on 860903,telephone Bomb Threat Received at Central Alarm Station.Unusual Event Declared.No Bomb Found During Bldg Search.Security Personnel Continuing Investigation PNO-II-86-048, on 860710,two Glaziers Employed by Util Contractor Fell 40 Ft After One End of Scaffolding Gave Way. Accident Occurred in New Simulator Training Bldg Outside Plant Security Fence.Men Taken to Hosp1986-07-10010 July 1986 PNO-II-86-048:on 860710,two Glaziers Employed by Util Contractor Fell 40 Ft After One End of Scaffolding Gave Way. Accident Occurred in New Simulator Training Bldg Outside Plant Security Fence.Men Taken to Hosp PNO-II-86-034, on 860510,fire Destroyed One of Six multi-cell Redwood Cooling Towers.Cause Under Investigation.Fire May Have Been Ignited by Spark from Lift Pump Motor.Units 1 & 2 Defueled.All Three Units Shut Down1986-05-12012 May 1986 PNO-II-86-034:on 860510,fire Destroyed One of Six multi-cell Redwood Cooling Towers.Cause Under Investigation.Fire May Have Been Ignited by Spark from Lift Pump Motor.Units 1 & 2 Defueled.All Three Units Shut Down PNO-II-85-118, on 851212,oil Spilled Into Tennessee River When Site Glass Failed on Traveling Screen Gear Box on Cold Water Pump.Immediate Cleanup Action Initiated.All Units Shut Down While Environ Activities Conducted1985-12-13013 December 1985 PNO-II-85-118:on 851212,oil Spilled Into Tennessee River When Site Glass Failed on Traveling Screen Gear Box on Cold Water Pump.Immediate Cleanup Action Initiated.All Units Shut Down While Environ Activities Conducted PNO-II-85-109A, five Employees Contaminated w/Tc-99 During Emergency Drill Last Wk.Tva Successfully Decontaminated Four Employees.Fifth Individual Received Approx 4 Rem to Hands1985-11-19019 November 1985 PNO-II-85-109A:five Employees Contaminated w/Tc-99 During Emergency Drill Last Wk.Tva Successfully Decontaminated Four Employees.Fifth Individual Received Approx 4 Rem to Hands PNO-II-85-109, on 851113,six Employees Received Contamination on Skin or Shoe During Scheduled Emergency Drill.Caused by Pouring Less than 1 Mci Tc-99m to Simulate Contamination. Decontamination Begun1985-11-14014 November 1985 PNO-II-85-109:on 851113,six Employees Received Contamination on Skin or Shoe During Scheduled Emergency Drill.Caused by Pouring Less than 1 Mci Tc-99m to Simulate Contamination. Decontamination Begun PNO-II-85-073, on 850726,small Fire in Transformer in 3 C 4 Kv Unit Board Occurred.Licensee Evaluating Damage to Adjacent Electrical Connections.Region II Will Conduct Routine Followup of Licensee Corrective Actions1985-07-29029 July 1985 PNO-II-85-073:on 850726,small Fire in Transformer in 3 C 4 Kv Unit Board Occurred.Licensee Evaluating Damage to Adjacent Electrical Connections.Region II Will Conduct Routine Followup of Licensee Corrective Actions PNO-II-84-086, during Insps Per Generic Ltr 84-11, IGSCC Detected on Inboard Side of Outboard Isolation Valve on RWCU Sys1984-11-0707 November 1984 PNO-II-84-086:during Insps Per Generic Ltr 84-11, IGSCC Detected on Inboard Side of Outboard Isolation Valve on RWCU Sys PNO-II-82-090, on 820730,w/Unit 2 Shutdown for Scheduled Refueling & Mods,Units 1 & 3 Failed Secondary Containment Integrity Tests & Were Shut Down.Caused by Leakage Between Common Refueling Zone & Three Individual Reactor Zones1982-08-0505 August 1982 PNO-II-82-090:on 820730,w/Unit 2 Shutdown for Scheduled Refueling & Mods,Units 1 & 3 Failed Secondary Containment Integrity Tests & Were Shut Down.Caused by Leakage Between Common Refueling Zone & Three Individual Reactor Zones PNO-II-82-091, on 820802,airborne I-131 Detected by Radiation Monitor in Occupied Space Above Refueling Floor. Caused by Leaking Flange in Spray Line Connected to Reactor Vessel Head.Clothing of Three Workers Contaminated1982-08-0303 August 1982 PNO-II-82-091:on 820802,airborne I-131 Detected by Radiation Monitor in Occupied Space Above Refueling Floor. Caused by Leaking Flange in Spray Line Connected to Reactor Vessel Head.Clothing of Three Workers Contaminated PNO-II-82-084, on 820719,one-inch Diameter Sensing Line from Main Steam Line B to Electric Hydraulic Controller Broke, Closing Turbine Control Valves & Tripping Reactor.Eight Workers Slightly Contaminated,Primarily w/Rb-881982-07-19019 July 1982 PNO-II-82-084:on 820719,one-inch Diameter Sensing Line from Main Steam Line B to Electric Hydraulic Controller Broke, Closing Turbine Control Valves & Tripping Reactor.Eight Workers Slightly Contaminated,Primarily w/Rb-88 ML20198B4061980-03-13013 March 1980 PNS-II-80-008:on 800313,wife of Plant Employee Attempted to Enter Protected Area W/Loaded .38 Caliber Pistol & Knife in Purse.State of AL Notified ML20216K0151978-09-15015 September 1978 PNO-78-166:on 780913,recirculation Flow in Loop a Dropped from About 41,000 Gpm to 33,000 Gpm While Operating at Power.Plant Shut Down on 780914.Recirculation Pump Discharge Valve Disc Separated from Stem Partially Closing Valve ML20216J6861978-08-23023 August 1978 PNO-78-148:on 780822,main Stream Relief Valve Opened Prematurely & Remained Open Until Pressure Decreased to 200 Psig.Unit Was Placed in Cold Shutdown to Replace Faulty Valve ML20216J8361978-08-18018 August 1978 PNO-78-146:on 780817,turbine Trip from 90% Power Was Initiated by High Water Level in Moisture Separator.Four Main Steam Valves Opened to Relieve Sys Pressure.One of Four Valves Failed to Reseat Until Sys Pressure Reached 300 Psig ML20216J9971978-07-17017 July 1978 PNO-78-133:on 780715,folowing Shutdown for Unrelated Maint, RHR Sys Placed in Operation.One RHR Hs Determined to Be Leaking & Releasing Radioactive Matl to Tennessee River at Rate Above Permissible Limits.Total or 0.11 Ci Released ML20248H9461978-04-19019 April 1978 PNO-78-087:on 780415,aluminum 24-inch Diameter Condensate Storage Tank Line Failed at Weld in Fabricated Y Junction Spilling 80,000 Gallons of Water to Reactor Bldg Basement Room ML20248J7631978-04-17017 April 1978 PNO-78-082:on 780415,one Target Rock safety-relief Valve Inadvertently Opened.Suppression Pool Cooling Was Initiated & Limited Pool Temp to 115 F.State of AL Informed ML20248L0961978-03-20020 March 1978 PNO-78-055:on 780319,computer Analysis Showed Under Certain Conditions Normal Auxiliary Power Sys Will Not Maintain Required Min Voltage.Licensee Will Limit Plant Operation to Two Units ML20248L8961978-03-16016 March 1978 PNO-78-047:on 780315,bendix Electrical Connectors Failed Environ Tests Despite Less Severe Accelerated Aging Program Previously Used.Corrective Action Under Review.Licensee & NRC Considering News Releases.State of AL Has Been Informed ML20248L0641978-02-14014 February 1978 PNO-78-029:on 780213,Bendix Electrical Connectors Used in Unit 3 Containment,Failed Steam Environ Tests Following Accelerated Aging Program.Failure Occurred at Back of Connector Where Conductors Join Connector Pins ML20248K9981978-02-14014 February 1978 PNO-78-030:on 780213,w/unit Operating at 90% Power One Target Rock Relief Valve Opened & Remained Open Until Reactor Pressure Reduced to 195 Psig.Licensee Inspected Suppression Chamber & Nothing Unusual Found ML20248L5441978-02-0606 February 1978 PNO-78-021:on 780205,w/unit Operating at 90 Percent Power Level,One Target Rock Rv Opened & Remained Open Until Reactor Pressure Reduced to 170 Psig.Licensee Plans to Replace Valve & Return to Power on 780207 ML20207G4351977-12-12012 December 1977 PNO-77-219:on 770917,shoe Cover Fell Into Reactor Vessel During Preparation for Fuel Handling.All Fuel Removed from Vessel & Search of Area Under Lower Core Support Plant Under Way.Previous Search Efforts Unsuccessful ML20207H1541977-11-25025 November 1977 PNO-77-211:on 771123,aluminum Condensate Storage Tank Line Failed at Weld in Fabricated Y Junction Spilling Approx 100,000 Gallons of Water to Reactor Building Basement.Unit Remains Shutdown for Repair of Failed Line ML20151Y1801977-07-18018 July 1977 PNO-77-130:on 770717,excessive Temp in Offgas Charcoal Filter Occurred.Hydrogen Recombiner Operation Erratic Prior to Occurrence.Unit Operation Continues with Filters Bypassed.Region II Inspectors Enroute to Browns Ferry Site ML20151U8651977-04-22022 April 1977 PNO-77-065:on 770421,reactor Scram Occurred During Full Power Operation.Caused by Technicians Working on Reactor Water Level Logic Instrumentation.No Press Relsease Planned ML20236L5301976-01-0606 January 1976 PNO-77-003:on 770105,licensee Reported That an Unplanned Release of Radioactive Liquid Was Discharged to Wheeler Reservoir,Due to Leak in Heat Exchanger in RHR Sys While in Shutdown Cooling Mode ML20236U9401975-10-31031 October 1975 PN-75-116:Ofc of Insp & Enforcement Issued IE Bulletin 75-04B.Bulletin Requests Results of FP Insps Performed by Groups Other than NRC at Licensed Operating Power Plants & Description of Actions Taken by Licensees ML20236U8981975-09-19019 September 1975 PN-75-094:on 750918,fire Developed in Discharge Pipe (Flue) of 1 of 3 Auxiliary Steam Boilers.Boiler Shutdown & Fire Permitted to Dissipate.Visual Insp Revealed No Damages.Smoke Dissipated Up Stack ML20236V0021975-08-0707 August 1975 PN-75-066:on 750807,203 Fuel Channel Boxes Have Been Examined for Excessive Corner Wear from Incore Monitoring Tube Vibration.Rejected 88 Based on Wear Mark or Path Estimated to Result in Wall Thickness Reduction of 1/2 ML20140G3251974-11-27027 November 1974 PNO-74-136:on 741124,during Startup Tests of Main Steam Relief Valves at 75% Power,Target Rock Safety Relief Valve Failed to Reseat.Cause Not Stated.Valve Will Be Replaced 1997-03-05 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARIR 05000259/19990051999-10-0101 October 1999
[Table view]Insp Repts 50-259/99-05,50-260/99-05 & 50-296/99-05 on 990725-0904.No Violations Noted.Major Areas Inspected: Operations,Maintenance,Engineering & Plant Support PNO-II-97-014, on 970305,Unit 3 Experienced Loss of Offsite Power & Declared Notification of Unusual Event.Unit 2 Operating at 100 Percent During Event & Unaffected.Unit 1 in Long Term Shutdown Condition & Also Unaffected1997-03-0505 March 1997 PNO-II-97-014:on 970305,Unit 3 Experienced Loss of Offsite Power & Declared Notification of Unusual Event.Unit 2 Operating at 100 Percent During Event & Unaffected.Unit 1 in Long Term Shutdown Condition & Also Unaffected ML20138M0061997-01-13013 January 1997 EN-97-003:notice of Order Prohibiting Involvement in NRC- Licensed Activities (Effective Immediately) Issued to Jr Byrum.Action Based on NRC Investigation & Testimony Before DOL IR 05000260/19960991996-10-16016 October 1996 SALP Repts 50-260/96-99 & 50-296/96-99 for Period 950319- 960907 ML20129D2931996-07-19019 July 1996 Notice of Violation from Insp on 960617-20.Violation Noted: During Test,Two Members of Security Force Failed to Detect Firearm Visible on x-ray & Take Action to Neutralize Possibility of Threat After Identifying Part of Firearm IR 05000259/19960071996-07-19019 July 1996 Partially Withheld Insp Repts 50-259/96-07,50-260/96-07 & 50-296/96-07 on 960617-21 (Ref 10CFR73.21(c)(2)).Violations Noted.Major Areas Inspected:Aspects of Security Program for Power Reactors,Including Detection & Assessment Aids ML20205C6581996-02-14014 February 1996 Notice of Violation from Secretary of Labor Decision & Order .Violation Noted:On 930202 & 04,SWEC,discriminated Against D Harrison for Engaging in Protected Activities IR 05000259/19930371993-11-0303 November 1993 Partially Withheld Insp Repts 50-259/93-37,50-260/93-37 & 50-296/93-37 on 931004-08.Noncited Violation Identified. Major Areas Inspected:Security Program Plans,Alarm Station & Communication,Access Controls & Personnel PNO-II-91-039, on 910625,licensee Mgt Completed Third Mgt Assessment After Completion of HPCI & RCIC Quick Start Testing1991-06-26026 June 1991 PNO-II-91-039:on 910625,licensee Mgt Completed Third Mgt Assessment After Completion of HPCI & RCIC Quick Start Testing IR 05000259/19910141991-04-22022 April 1991 Insp Repts 50-259/91-14,50-260/91-14 & 50-296/91-14 on 910325-29.No Violations Noted.Major Areas Inspected:Valve Operators,Level Switches,Temp Elements,Level Transmitters, Flow Switches,Terminal Blocks & Junction Boxes IR 05000259/19910121991-04-16016 April 1991 Insp Repts 50-259/91-12,50-260/91-12 & 50-296/91-12 on 910315-20.No Violations Noted.Major Areas Inspected:Test Procedures,Test Preparation,Test Performance & Test Results of Primary Containment Integrated Leak Rate Test IR 05000259/19910021991-03-18018 March 1991 Insp Repts 50-259/91-02,50-260/91-02 & 50-296/91-02 on 910119-0215.Non-cited Violations Noted.Major Areas Inspected:Surveillance,Maint,Operational Safety,Mods,Post Mod Testing,Esfs Walkdown,Standby Liquid Control & Mgt IR 05000259/19900221990-12-10010 December 1990 Insp Repts 50-259/90-22,50-260/90-22 & 50-296/90-22 on 900625-29.No Violations Noted.Major Areas Inspected:Followup of BFN Implementation of EQ Program to Comply W/Requirements of 10CFR50.49 IR 05000259/19900201990-08-13013 August 1990 Insp Repts 50-259/90-20,50-260/90-20 & 50-296/90-20 on 900625-29 & 0709-13.No Violations or Deviations Noted.Major Areas Inspected:Corrective Action Program Implementation & Quality Verification Activities IR 05000266/19900121990-06-0808 June 1990 Enforcement Conference Repts 50-266/90-12 & 50-301/90-12 on 900525.Violations Noted.Major Areas Discussed:Licensee Apparent Recurrent High Radiation Area Barrier Violations & Weaknesses in Radiation Protection Program IR 05000260/19890361989-09-21021 September 1989 Insp Rept 50-260/89-36 on 890828-0901.No Violations Noted. Major Areas Inspected:Small Bore Piping & Instrument Tubing Program IR 05000260/19890301989-09-18018 September 1989 Insp Rept 50-260/89-30 on 890313-24.No Violations Noted. Major Areas Inspected:Essential Design Calculations Under Civil Calculation Review Program IR 05000260/19890311989-07-13013 July 1989 Insp Rept 50-260/89-31 on 890426-0628.Open Issues Noted. Major Areas Inspected:Design Calculations for Seismic Design Program,Including Generation & Transfer of Seismic Loads & Impact Evaluation of Primary Sys IR 05000260/19880391989-06-17017 June 1989 Insp Rept 50-260/88-39 on 881219-22.Six Out of Eight Open Items Reviewed Closed.Major Areas Inspected:Techniques, Procedures & Criteria Used for Generating New Amplified Response Spectra (Ars) & Util Responses to Open Items IR 05000260/19890211989-06-14014 June 1989 Insp Rept 50-260/89-21 on 890123-24.Two of Three Items Reviewed During Insp Considered Closed.Major Areas Inspected:Responses to Three Open Items Identified in Insp Rept 50-260/88-38,including CSG-14,CSG-23 & CSG-26 IR 05000260/19890151989-05-17017 May 1989 Insp Rept 50-260/89-15 on 890123-0203.Open Item Noted Re Calculations Associated W/Ie Bulletins 79-14 & 79-02 on safety-related Piping.Major Areas Inspected:Design Criteria Documents & Calculations for safety-related Piping IR 05000259/19890061989-05-0303 May 1989 Insp Repts 50-259/89-06,50-260/89-06 & 50-296/89-06 on 890130-0203 & 0214-0310.Violations & Deviations Noted.Major Areas Inspected:Adequacy of Testing,Calibr,Maint & Configuration Control of safety-related Instrumentation ML20244C4181989-04-10010 April 1989 Notice of Violation from Insp on 881208-31.Violations Noted: Prior to 881223,licensee Failed to Properly Establish Administrative Procedure for Control of Equipment IR 05000259/19880361989-04-0707 April 1989 Insp Repts 50-259/88-36,50-260/88-36 & 50-296/88-36 on 81208-31.Violations Noted.Major Areas Inspected:Plant Operations,Mgt Control Over Plant Activities & Work Control Process to Determine Readiness for Fuel Load ML20247G6941989-03-23023 March 1989 PNO-ADSP-89-001:on 890317,GE-supplied Cables in Nuclear Instrumentation Sys Found Deteriorated W/Rubber Insulation Brittle & Cracked W/Portions of Conductor Exposed.Ge Has Obtained Sample Cable for Further Analysis IR 05000259/19880351989-03-17017 March 1989 Insp Repts 50-259/88-35,50-260/88-35 & 50-296/88-35 on 881201-31.No Violations or Deviations Noted.Unresolved Items Noted Re Surveillance Testing & Missed Surveillance.Major Areas Inspected:Ros,Nrc Bulletins & Open Items IR 05000259/19890011989-03-0909 March 1989 Partially Withheld Insp Repts 50-259/89-01,50-260/89-01 & 50-296/89-01 on 890109-10.No Violations Noted.Major Areas Inspected:Corrective Actions to Notice of Violation & Program for Control & Accounting of SNM IR 05000259/19880271989-02-13013 February 1989 Insp Repts 50-259/88-27,50-260/88-27 & 50-296/88-27 on 880823-890106.No Violations or Deviations Noted.Major Areas Inspected:Seismic Qualifications,Cleanliness Controls,Fire Protection,Surveillance Testing & Instrumentation IR 05000259/19880331989-02-13013 February 1989 Insp Repts 50-259/88-33,50-260/88-33 & 50-296/88-33 on 881101-30.Violation Noted.Major Areas Inspected:Operational Safety Verification,Mods,Surveillance Observations,Sys Return to Svc,Status of 10CFR21 Repts & ROs ML20245J0501989-02-0202 February 1989 Notice of Violation from Insp on 881001-31.Violation Noted: Reactor Bldg & Refueling Floor Ventilation Radiation Monitor Calibr & Functional Test Not Performed on 881017 ML20245J0531989-02-0101 February 1989 Corrected Insp Repts 50-259/88-32,50-260/88-32 & 50-296/88-32 on 881001-31.Violations Noted.Major Areas Inspected:Operational Safety Verification,Surveillance Observation,Mods,Sys Return to Svc & ROs ML20195B2311988-10-25025 October 1988 Notice of Violation from Insp on 880701-31.Violation Noted:Failure to Generically Review Condition Adverse to Quality Repts SQN 871347,SQP 871003,SQP 871066 & Sqt 871304 within 70 Days of Initiation of Repts IR 05000259/19880311988-10-24024 October 1988 Insp Repts 50-259/88-31,50-260/88-31 & 50-296/88-31 on 880719-22 & 0907-08.No Violations or Deviations Noted.Major Areas Inspected:Plant Regulatory Performance Improvement Program Action Item Implementation IR 05000259/19880211988-10-21021 October 1988 Insp Repts 50-259/88-21,50-260/88-21 & 50-296-88-21 on 880701-31.Violation & Unresolved Items Noted.Major Areas Inspected:Operational Safety,Maint Observations,Surveillance Testing Observations & Restart Test Program ML20195B2371988-10-21021 October 1988 Insp Repts 50-259/88-21,50-260/88-21 & 50-296-88-21 on 880701-31.Violation & Unresolved Items Noted.Major Areas Inspected:Operational Safety,Maint Observations,Surveillance Testing Observations & Restart Test Program IR 05000259/19880291988-09-28028 September 1988 Partially Withheld Insp Repts 50-259/88-29,50-260/88-29 & 50-296/88-29 on 880912-16 (Ref 10CFR2.790 & 73.21). Violations Noted in Area of Key Control.Major Areas Inspected:Security Organization,Records & Repts ML20154R8101988-09-22022 September 1988 Notice of Violation from Insp on 880612-30.Violation Noted: Condition Adverse to Quality Rept Not Generated During Conduct of Special Test 88-09, Diesel Generator Governor & Voltage Regulator Calibr on 880621 IR 05000259/19880261988-09-20020 September 1988 Insp Repts 50-259/88-26,50-260/88-26 & 50-296/88-26 on 880829-0902.No Violations or Deviations Noted.Major Areas Inspected:Emergency Preparedness,Including Programmatic Elements of Emergency Detection & Classification & Training ML20155A9561988-09-19019 September 1988 Insp Repts 50-259/88-22 & 50-260/88-22 & 50-296/88-22 on 880711-15.Violations Noted.Major Areas Inspected:Assessment of New Employee Concern ML20155A9381988-09-19019 September 1988 Notice of Violation from Insp on 880711-15.Violation Noted: Licensee Line Mgt Became Aware That Four Temporarily Promoted Shift Engineers Did Not Meet Above Stds & Did Not Adequately Disposition Issue IR 05000259/19880221988-09-19019 September 1988 Insp Repts 50-259/88-22 & 50-260/88-22 & 50-296/88-22 on 880711-15.Violations Noted.Major Areas Inspected:Assessment of New Employee Concern ML20154R8211988-09-15015 September 1988 Insp Repts 50-259/88-18,50-260/88-18 & 50-296/88-18 on 880612-30.Violations Noted.Major Areas Inspected:Operational Safety,Maint Observation,Independent Audits & Restart Test Program ML20154K8891988-09-12012 September 1988 Notice of Violation from Insp on 880501-0611.Violation Noted:Three Fire Brigade Members Who Entered Drywell for Fire Fighting Operations Not Qualified & Q-list Equipment Data Package (Sys 1) Not in Compliance W/Nuclear QA Manual ML20154K9111988-09-0909 September 1988 Insp Repts 50-259/88-16,50-260/88-16 & 50-296/88-16 on 880501-0611.Violations Noted.Major Areas Inspected: Operational Safety,Maint Observation,Surveillance Testing Observation,Restart Test Program & Q-list Concerns IR 05000259/19880231988-09-0202 September 1988 Insp Repts 50-259/88-23,50-260/88-23 & 50-296/88-23 on 880801-05.No Violations or Deviations Noted.Major Areas Inspected:Organization & Mgt Controls in Radiation Protection & Radwaste & Control of Radioactive Matls IR 05000259/19880191988-08-22022 August 1988 Insp Repts 50-259/88-19,50-260/88-19 & 50-296/88-19 on 880620-24.No Violations or Deviations Noted.Major Areas Inspected:Mark I Containment Long Term Program Mod,Ie Bulletins 79-02 & 79-14 IR 05000259/19880201988-07-29029 July 1988 Partially Withheld Insp Repts 50-259/88-20,50-260/88-20 & 50-296/88-20 on 880627-0701 (Ref 10CFR2.790 & 73.21).No Violations Identified.Major Areas Inspected:Security Program,Security Organization & Security Program Audit IR 05000259/19880121988-06-20020 June 1988 Insp Repts 50-259/88-12,50-260/88-12 & 50-296/88-12 on 880502-06.No Violations or Deviations Noted.Major Areas Inspected:Mark I Containment Program Mod & IE Bulletins 79-02 & 79-14 IR 05000259/19880141988-06-0303 June 1988 Health Physics Insp Repts 50-259/88-14,50-260/88-14 & 50-296/88-14 on 880509-13.No Violations or Deviations Noted. Major Areas Inspected:Followup on Previous Enforcement Issues,Organization & Mgt Controls & Training ML20155J0411988-06-0303 June 1988 Notice of Violation from Insp on 880401-30.Violation Noted: Administrative Procedure PMP 0602.01 Found to Be Inadequate Due to Lack of Any Requirement or Guidance on Use of Draft Info in Preparation of Licensing Submittals 1999-10-01 |
Text
(bk R tbudotG 72Lv 3Mf ff PRELIMINARY NOTIFICATION (m-)
~
- April 17,1978 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PN0-78-82 This preliminary notification constitutes EARLY notice of an event of POSSIBLE safety or public interest significance. The information presented is as initially received without verification or evaluation l
and is basically all that is known by IE staff as of this date.
l FACILITY: Tennessee Valley Authority Browns Ferry, Unit No. 3 Docket No. 50-296 Decatur, Alabama
SUBJECT:
PRIMARY SYSTEM BLOWDOWN During power operation on April 15, one Target Rock safety-relief valve inadvertently opened. The transient caused the electro-hydraulic !
control (EHC) system to trip the turbine control valves and scram the l reactor. The safety-relief valve did not reseat until the reactor -
pressure had decreased to 280 psig. Suppression pool cooling was @
it .iated and limited the pool temperature to 115 degrees Fahrenheit.
.ne Technical Specification reactor cooldown rate limit of 100 degrees i
- Fahrenheit per hour may have been exceeded. A thermal transient analysis !
(" ~
is in progress. The safety-relief valve and an EHC pump will be replaced !
prior to return to power. t Media interest is not expected. A news release is not planned by the licensee nor NRC. The State of Alabama has been informed.
'/I Region II (Atlanta) received notification of this occurrence by telephone /
from the Plant Manager at 8:00 p.m. on April 15. This information is current as of 8:15 a.m. on April 17. J
Contact:
GKlingler, IE x28019 FNolan, IE x28019 JSniezek, IE x28019 Distribution: Transmitted H St //
- 3 Chairman Hendrie- Commissioner Bradford Commissioner Kennedy S. J. Chilk, SECY C. C. Kammerer, CA Commissioner Gilinsky (For Distribution)
Transmitted: MNBB//* 3 P Bldg //*3 E. Volgenau. IE L. V. Gossick, EDO S. H. Hanauer, EDO
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R. Hartfield, MIPC C. V. Smith, NMSS T. J. McTiernan, DIA R. G. Ryan, OSP R. Minogue, SD H. K. Shapar, ELD E PRELIMINARY NOTIFICATION 9006090295 790417 PDR I&E PNO-78-082 PDR ,
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