ML032830235
| ML032830235 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 10/07/2003 |
| From: | FirstEnergy Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML032830235 (68) | |
Text
October 7, 2003 Davis-Besse Nuclear Power Station 1
IMC 0350 Meeting Davis-Besse Nuclear Power Station
October 7, 2003 Davis-Besse Nuclear Power Station 2
Desired Outcomes
- Provide results of the Normal Operating Pressure (NOP) Test
- People, Plant, and Processes
- Demonstrate that we have identified and addressed plant material and people issues requiring attention for restart
- Communicate remaining actions for restart Lew Myers Chief Operating Officer - FENOC
October 7, 2003 Davis-Besse Nuclear Power Station 3
Meeting Agenda Lew Myers Chief Operating Officer - FENOC
- Outage Accomplishments....Lew Myers
- NOP Test Challenges
-Equipment..Greg Dunn
-Operational.......Mike Roder
- Assessment of Organizational Processes.Rick Dame
- Oversight Perspective............Steve Loehlein
- Results/Lessons-Learned from NOP Test.....Mark Bezilla
- Remaining Actions for Restart.Mike Ross
- Overall Conclusions........Lew Myers
October 7, 2003 Davis-Besse Nuclear Power Station 4
Lew Myers Chief Operating Officer - FENOC
- Joe Hagan is the new FENOC Senior Vice-President overseeing Engineering and Support Services and reports to Gary Leidich, President and Chief Nuclear Officer -
-Former senior Vice President of Nuclear Operations (Exelon Generation)
-Bachelor of Science degree in Electrical Engineering
-Master of Science Degree in Engineering Management
-Licensed BWR Senior Reactor Operator at Hope Creek
-Twenty-six years nuclear power experience Personnel Changes
October 7, 2003 Davis-Besse Nuclear Power Station 5
Lew Myers Chief Operating Officer - FENOC
- Barry Allen is the new Plant Manager for Davis-Besse and reports to Mark Bezilla, Vice-President
-Bachelors degree in architecture structure
-Masters degree in Civil Engineering
-Senior Reactor Operator Certification at ANO-2
-Seventeen years nuclear power experience Personnel Changes
October 7, 2003 Davis-Besse Nuclear Power Station 6
Lew Myers Chief Operating Officer - FENOC Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 7
Desired Outcome
- Reflect and status the NRC and public on our outage accomplishments to date
October 7, 2003 Davis-Besse Nuclear Power Station 8
- Restart Test Plan Objectives have been fully met
-Assured plant/personnel safety
-Conducted Post-Maintenance/Modification Testing successfully
-Results are being assessed Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 9
- Demonstrated confidence in plant systems and equipment
-Completed Testing
-Integrated Leak Rate Test (April 9)
-50 psig Test (May 6)
-250 psig Test (May 25)
-Normal Operating Pressure Test (October 2)
Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 10 Plant Inspectors during NOP Test Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 11
- Reactor Vessel and Reactor Coolant System
-Reactor Pressure Vessel Head Replacement *
-Access Openings In The Reactor Vessel Head Stand
-Control Rod Drive Mechanism Nozzle Inspection/Repair
-Replace Reactor Vessel Head & Service Structure
-Reactor Vessel Head Transportation/Handling
-Service Structure Access Openings
-Original Reactor Head Nozzle Samples
-Original Reactor Head Shipped Offsite
-FLÜS Leak Monitoring System *
-Installed FLÜS Leak Monitoring System
-Incore Detector Tubes, to support repairs (pending NOP test results)
Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 12
- Reactor Coolant System (RCS)
-Replaced Pressurizer Code Safeties and PORV
-Reactor Cavity Seal Plate Modification
-Reactor Coolant System Deep Drain Valve Maintenance
-Replaced Thermal Sleeves for HPI Lines 2-1 and 2-2
-Fuel Integrity Verification
- Reactor Coolant Pumps (RCP)
-Reactor Coolant Pump 1-1 and 1-2 Replacement
-RCP 1-1 Shaft Replacement
-Replaced N-9000 Seal Cartridges on all RCPs
- RCS Thermowell Replacement
-Replace RCS Cold Leg Thermowells
-Replace RCS Hot Leg Thermowells Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 13
- Containment and Containment Systems
-Reactor Vessel Head Replacement Support
-Containment Structure Access Opening
-Restore Temp Access Openings
-Containment Integrated Leak Rate Test
-Boric Acid Extent of Condition Inspections Completed
-Containment Emergency Sump Modification
-Removed Fibrous Insulation In Containment Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 14
- Containment and Containment Systems (continued)
-Containment Air Coolers (CAC)
-Replaced Cooling Coils, Service Water Trees/Bellows, Drop Down Registers
-Replace CAC Fan Motors MC 2 & 3
-Annulus Work Activities
-Apply Water Tight Annulus Membrane
-Containment Vessel Dome Painting Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 15
- Containment and Containment Systems (continued)
-Containment Cranes / Bridges
-Polar Crane Refurbishment
-In-Mast Sipping Capability Mod
-Upgrade Of Fuel Handling Transfer System
-Upgrade Of The Main Fuel Handling Bridge
-Containment Moisture Seal Installation
-Containment Vessel Interface Seal Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 16
- Emergency Core Cooling System
-High Pressure Injection System
-Decay Heat System
-Post-LOCA Boric Acid Precipitation Control Modification
-Decay Heat Pump Cyclone Separators for Containment Debris Issue
-Decay Heat Valve Tank Modification Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 17
- Electrical Systems
-Train 1 Station Battery Replacement
-Electrical Transient Analysis Program Modifications
-Thermal Overload Heater Modification on 28 Motor Control Center Components Overload Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 18
- Emergency (& Station Blackout) Diesel Generators
-Emergency Diesel Generator (EDG) 2 Maintenance Outage (EDG 1 Scheduled Post NOP)
-EDG Motor Operated Potentiometer
-High Temp-EDG Rooms-Install Manifold Insulation
-EDG Room Temps-Install Ductwork
-Replace EDG Air Start Systems Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 19
- Instrument and Controls Systems
-Safety Features Actuation System
-Integrated SFAS Testing
-SFAS Relay Replacement / Restoration
-Radiation Monitor Upgrade Modifications
-Replace Control Room Radiation Monitor Recorders
-Replace Obsolete Victoreen Radiation Monitors Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 20
- Air Operated Valves
-Implemented program to improve response time
-Addressed 83 valves
-Established functional program Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 21
- Plant Systems that will be removed from the a(1) Red Maintenance Rule status
-Auxiliary Feedwater System
-Instrument Isolation valves on RCS Reactor Protection System 2-Low Instrumentation
-Station and Instrument Air
-Containment Air Monitoring
-Emergency Diesel Generator
-Essential & Miscellaneous AC Outage Accomplishments
October 7, 2003 Davis-Besse Nuclear Power Station 22
- Root Cause training for employees
- Corrective Action Program Enhancements
- Problem Solving/Decision Making NOP
- Standards and expectations training for employees
- Safety Culture Model and Assessment Process
- Operability Training for SROs and Engineers
- New management team Outage Accomplishments Management and Human Performance
October 7, 2003 Davis-Besse Nuclear Power Station 23 DAVIS-BESSE SITE ORGANIZATION Radiation Protection Radiation Protection Chemistry Chemistry Plant Operations Plant Operations Maintenance Maintenance Outage Management Outage Management and Work Control and Work Control Director - Organizational Director - Organizational Development Development J.
J. Randel Randel Fast Fast Experience: Beaver Valley, Experience: Beaver Valley, Farley Farley Restart STP, Westinghouse Restart STP, Westinghouse BS - Technology and Management BS - Technology and Management 25 years experience (4 years FE) 25 years experience (4 years FE)
Director Director DB DB Nuclear Engineering Nuclear Engineering James J. Powers III James J. Powers III Experience: Perry Experience: Perry PE - New York PE - New York SRO License - PNPP SRO License - PNPP 26 years experience (8 years FE) 26 years experience (8 years FE)
Design Basis Design Basis Engineering Engineering Plant Engineering Plant Engineering Project Management Project Management Regulatory Affairs Regulatory Affairs Quality Services Quality Services Security Security FENOC Chief Operating Officer FENOC Chief Operating Officer Lew Lew W. Myers W. Myers Experience: Browns Ferry Experience: Browns Ferry FENOC, South Texas, Waterford FENOC, South Texas, Waterford MBA MBA BS - Mechanical Engineering BS - Mechanical Engineering SRO License - Waterford and St.
SRO License - Waterford and St. Lucie Lucie 20 years experience (7 years FE) 20 years experience (7 years FE)
Emergency Emergency Preparedness Preparedness Nuclear Training Nuclear Training Human Resources Human Resources Director Support Services Director Support Services Robert W.
Robert W. Schrauder Schrauder Experience: Restart DBNPS, Perry Experience: Restart DBNPS, Perry BS - Nuclear Engineering BS - Nuclear Engineering SRO Certification - PNPP SRO Certification - PNPP 25 years experience (16 years FE) 25 years experience (16 years FE)
Plant Manager Plant Manager Barry Allen Barry Allen Experience: ANO, Waterford, Experience: ANO, Waterford, River Bend River Bend BS - Architecture Structures BS - Architecture Structures SRO Certification ANO - 2 SRO Certification ANO - 2 17 years experience 17 years experience MBA - Civil Engineering MBA - Civil Engineering Vice President - Nuclear Vice President - Nuclear Mark Mark Bezilla Bezilla Experience: DBNPS, Perry, Salem Experience: DBNPS, Perry, Salem BS - Nuclear Engineering Technology BS - Nuclear Engineering Technology SRO License - DBPNS and TMI SRO License - DBPNS and TMI 26 years experience (10 years FE) 26 years experience (10 years FE)
Restart Director Restart Director Michael J. Ross Michael J. Ross (Contractor)
(Contractor)
Experience: Restart TMI Experience: Restart TMI Associates Degree in Science Associates Degree in Science 30 years experience 30 years experience SRO License SRO License BS - Civil Engineering; BA - Chemistry BS - Civil Engineering; BA - Chemistry MS - Mechanical Engineering MS - Mechanical Engineering
October 7, 2003 Davis-Besse Nuclear Power Station 24 DAVIS-BESSE SITE ORGANIZATION Restart Restart Manager Chemistry Manager Chemistry Patrick J.
Patrick J. McCloskey McCloskey MS - Environmental Management MS - Environmental Management SRO Certification - DBNPS SRO Certification - DBNPS Class III, State of Ohio, Operator Class III, State of Ohio, Operator 18 years experience (FE) 18 years experience (FE)
Director Maintenance Director Maintenance Michael J. Stevens Michael J. Stevens Experience: Return to Service Quad Cities Experience: Return to Service Quad Cities BS - Mechanical Engineering Technology BS - Mechanical Engineering Technology SRO Certification SRO Certification 19 years experience (4 years FE) 19 years experience (4 years FE)
Manager Design Basis Engineering Manager Design Basis Engineering John J.
John J. Grabnar Grabnar MBA MBA BS - Civil Engineering BS - Civil Engineering SRO License - PNPP SRO License - PNPP PE - State of Ohio PE - State of Ohio 19 years experience (FE) 19 years experience (FE)
Manager Plant Engineering Manager Plant Engineering Brian Boles Brian Boles BS - Mechanical Engineering BS - Mechanical Engineering SRO License - PNPP SRO License - PNPP 17 years experience (FE) 17 years experience (FE)
Manager Radiation Protection Manager Radiation Protection Richard P. Farrell Richard P. Farrell MS MS 20 years experience 20 years experience Manager Nuclear Training Manager Nuclear Training John E.
John E. Reddington Reddington MS - Nuclear Engineering MS - Nuclear Engineering BS - Civil Engineering BS - Civil Engineering SRO - DBNPS SRO - DBNPS PE - States of Illinois and Ohio PE - States of Illinois and Ohio 24 years experience (17 years FE) 24 years experience (17 years FE)
Manager Human Resources Manager Human Resources Deanna L.
Deanna L. Haskins Haskins BA - Human Resource Management/
BA - Human Resource Management/
Organization Development Organization Development AA - Business Management AA - Business Management 18 years experience (FE) 18 years experience (FE)
Manager Security Manager Security William A.
William A. Mugge Mugge BS - Electrical Engineering BS - Electrical Engineering SRO License - DBNPS SRO License - DBNPS 17 years experience (FE) 17 years experience (FE)
Manager Quality Services Manager Quality Services Linda M.
Linda M. Dohrmann Dohrmann BA - Liberal Arts BA - Liberal Arts 27 years experience (FE) 27 years experience (FE)
Manager Regulatory Affairs Manager Regulatory Affairs Kevin L.
Kevin L. Ostrowski Ostrowski BS - Engineering BS - Engineering BS - Physics BS - Physics SRO License (Beaver Valley)
SRO License (Beaver Valley) 23 years experience (FE) 23 years experience (FE)
Support Services Support Services Manager Plant Operations Manager Plant Operations Michael J.
Michael J. Roder Roder BS - Mechanical Engineering BS - Mechanical Engineering SRO License - DBNPS SRO License - DBNPS 17 years experience (FE) 17 years experience (FE)
Manager Outage Management Manager Outage Management and Work Control and Work Control Gregory A.
Gregory A. Dunn Dunn BS - Chemistry BS - Chemistry AS - Nuclear Technologist AS - Nuclear Technologist SRO License - PNPP SRO License - PNPP 23 years experience (FE) 23 years experience (FE)
Manager Project Management Manager Project Management Charles A.
Charles A. Hawley Hawley,, Jr Jr BS - Mechanical Engineering BS - Mechanical Engineering SRO License - DBNPS SRO License - DBNPS 30 years experience (17 years FE) 30 years experience (17 years FE)
Plant Plant DB DB Nuclear Nuclear Engineering Engineering
October 7, 2003 Davis-Besse Nuclear Power Station 25 Greg Dunn Manager - Outage Management and Work Control Equipment Challenges
October 7, 2003 Davis-Besse Nuclear Power Station 26 Equipment Challenges Containment Spray Pumps
- Problem Statement
-Containment Spray Pumps failed to start on several occasions
-Initial Problem-Solving focused upon the over current trip
- Cause
-Probable cause was spurious trips from the Solid State Trip (SST)
Ground Fault Trip Device
- Corrective Actions
-Pump #1 replacement breaker SST without ground fault trip
-Pump #2 replacement breaker refurbished SST
-Engineering Change under development for elimination of SST ground fault trips (extent of condition)
October 7, 2003 Davis-Besse Nuclear Power Station 27 Equipment Challenges Thermal Overload Relays
- Problem Statement
-Thermal Overloads installed as a design change exhibited a trip
-Some loads remained running following an overload trip
- Causes
-Sizing of the Thermal Overload relays
-Relay Race Condition introduced
- Corrective Actions
-Overloads sized close to the normal operating current were replaced to increase margin
-28 Circuits require overload settings increased and 15 circuits require wiring changes (extent of condition)
October 7, 2003 Davis-Besse Nuclear Power Station 28 Equipment Challenges Auxiliary Feedwater Pump Testing
- Problem Statement
-Surveillance Test of Auxiliary Feedwater Pump #1 response time exceeded Acceptance Criteria
- Cause
-Misalignment of governor valve linkage coupled with installation of a new valve
- Corrective Actions
-Governor linkage was disconnected and adjusted/reconnected in accordance with plant maintenance procedures
-Response time repeatability demonstrated with confidence tests
October 7, 2003 Davis-Besse Nuclear Power Station 29 Category Description Total Items No Action Required Findings that are documented 31 but no actions are required (Monitor per Boric Acid Corrosion Program)
Ready for reinspection Components that were adjusted 24 and cleaned and are ready for reinspection Reinspection Satisfactory Components that were adjusted, 47 cleaned and reinspected satisfactorily Action Required Components that require repair 61 adjustment, cleaning, etc., that was unable to be preformed during Mode 3 Total 163 Total Walkdown/Inspection population (approximately) 1342 Equipment Challenges Mode 3 Walkdown Summary
October 7, 2003 Davis-Besse Nuclear Power Station 30 NOP Test Challenges Operations Mike Roder Manager - Plant Operations
October 7, 2003 Davis-Besse Nuclear Power Station 31 Desired Outcome
- Demonstrate confidence in addressing NOP Test Operational Issues
October 7, 2003 Davis-Besse Nuclear Power Station 32
- Problem Statement
-Inadvertent opening of Core Flood Tank Valve (CF1B)
- Causes
-Procedure guidance
-Operator performance
-Training
- Corrective Actions
-Relieved crew
-Corrected procedure
-Conducted just-in-time training
-Improved standards for pre-job briefs NOP Test Challenges Core Flood Tank Valve
October 7, 2003 Davis-Besse Nuclear Power Station 33
- Problem Statement
-RPS tripped
- Causes
-Procedure guidance
-Operator performance
-Training
- Corrective Actions
-Relieved crew
-Created management guidance for cooldown activities
-Revised procedure
-Created reverse pre-job brief document
-Conducted training for each evolution
-Added FENOC oversight in Control Room NOP Test Challenges Reactor Protection System Trip
October 7, 2003 Davis-Besse Nuclear Power Station 34
- Operations Action Plan
-Root Cause and Collective Significance Teams formed
-Interviewed each Senior Reactor Operator and Reactor Operator
-Optimize Operating Crews
-Strengthen integrated Operating procedures
-Improve Operator Training
-Assess enhanced crew oversight NOP Test Challenges Operations
October 7, 2003 Davis-Besse Nuclear Power Station 35 NOP Test Challenges Conclusion
- Conclusions
-NOP Test was successful
-Operation performance issues identified
-Operations Action Plan will address corrections
October 7, 2003 Davis-Besse Nuclear Power Station 36 Rick Dame Reliability Unit - Supervisor Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 37
- Desired Outcome
- Share observations and conclusions from Operational Readiness Assessment
- Assessment methodology
- Integrated Assessment Team
- Applied industry recognized standards of excellence.
- Conducted per Integrated Restart Test Plan Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 38 INTEGRATED ASSESSMENT DURING PLANT STAFF INDEPENDENT INTERNAL OVERSIGHT EXTERNAL OPERATIONAL ASSESSMENT SAFE PLANT OPERATION
PROCEDURE USE
EFFECTIVE COMMUNICATION
CONDUCT OF MAINTENANCE
CONDUCT OF RADIATION PROTECTION CONSERVATIVE DECISION MAKING
PROBLEM OWNERSHIP
CORRECTIVE ACTION
SAFETY CULTURE PLANT STAFF QA PLANT MGMT.
LINE ASSESSMENT (EXERCISES)
EXTERNAL ORGANIZATIONAL ASSESSMENT
& REVIEW FOR READINESS EXTERNAL READINESS REPORTS QA ASSESSMENT REPORT (QFOs)
FOCUSED ASSESSMENT (EXERCISES)
ORGANIZATIONAL EFFECTIVENESS QA ROOT CAUSE ISSUES ADDRESSED (INDEPENDENCE, CRITICALITY)
PRODUCT FINAL READINESS REPORT ELT REVIEW FOR READINESS RESTART OVERSIGHT PANEL REVIEW FOR READINESS PLANT& STAFF READY FOR RESTART (FENOC)
NOP TEST
October 7, 2003 Davis-Besse Nuclear Power Station 39
- Observation Summary
- In general, observations from peers outside of the Davis-Besse organization tended to be more critical of performance
- Shift management oversight of operational activities can be improved Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 40
- Observation Summary
- Some performance shortfalls were identified in the monitoring of plant parameters and trends, and in turn, anticipating the operational impact of these trends
- Differences exist in operational pre-job briefs standards between Davis-Besse and industry leaders Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 41
- Observation Summary
- The quality of some operational procedures is below that observed at industry leading performers
- Some weaknesses were observed in the area of procedural compliance Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 42
- Observation Summary
- Problem Solving and Decision Making Process was used by station personnel to resolve complex issues
- Improvements can be made in the implementation of the Problem Solving and Decision Making Process Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 43
- Observation Summary
- Benchstrength in certain technical disciplines must be replenished to support sustained organizational performance improvement
- System Engineering/Operations interface is not as strong as that observed at industry leaders
- Improvement opportunities exist in the performance of Management observations and coaching Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 44
- Conclusions
- Processes and programs support safe and reliable operation when properly implemented
- Station Management demonstrated effective operational decision making principles when collectively engaged
- Improvements must be implemented to address Operations performance Operational Readiness Assessment Results
October 7, 2003 Davis-Besse Nuclear Power Station 45 Oversight Perspective Steve Loehlein Manager - Nuclear Quality Assessment
October 7, 2003 Davis-Besse Nuclear Power Station 46 Assessment Objectives
- Health of Plant Systems and Equipment
- Organizational effectiveness
- Effectiveness of Restart Test Plan
October 7, 2003 Davis-Besse Nuclear Power Station 47 Assessment Results
- Health of Plant Systems and Equipment
-Equipment performance
-Plant Walkdown results
October 7, 2003 Davis-Besse Nuclear Power Station 48 Assessment Results
- Organizational Effectiveness
-Operations Leadership
- Safety Culture
- Configuration Control
- Procedure Compliance
October 7, 2003 Davis-Besse Nuclear Power Station 49 Assessment Results
- Restart Test Plan
-Provided valuable insights for Management
-Emphasis on Control Room Activities and organizational response to emergent issues
-Observations and conclusions similar to those of Quality Oversight
October 7, 2003 Davis-Besse Nuclear Power Station 50 Key Lessons Learned
- Organizational weaknesses appear to have been factors in performance shortfalls
- Prevention of unintended plant responses requires effective barriers prior to Operations performance of evolutions
October 7, 2003 Davis-Besse Nuclear Power Station 51 Recommendations
- Organizational
- Complete Collective Significance review of causes of performance shortfalls
-Identify causes (barriers) that need attention
-Utilize external assistance to ensure completeness of corrective actions
-Ensure procedures, training, and performance standards are adequate for future plant evolutions
-Implement appropriate corrective actions
October 7, 2003 Davis-Besse Nuclear Power Station 52 Recommendations
- Organizational (continued)
-Train on Configuration Management process
-Implement effective trend review process
-Ensure quality and execution of key Operations procedures
-Improve coordination of Problem-Solving process with Corrective Action Program
-Emphasize need for inter-department management challenges
October 7, 2003 Davis-Besse Nuclear Power Station 53 Recommendations
- Oversight
-Supplement Management and Quality Oversight with off-site assistance to improve objectivity and ensure assessments are sufficiently critical
-Focus Quality Oversight on cross-functional activities and interfaces
October 7, 2003 Davis-Besse Nuclear Power Station 54 Mark Bezilla Vice President/Plant Manager Normal Operating Pressure Test Results/Lessons-Learned
October 7, 2003 Davis-Besse Nuclear Power Station 55 Desired Outcome
- Provide an overview of what we learned from the Normal Operating Pressure Test
October 7, 2003 Davis-Besse Nuclear Power Station 56 Restart Test Program
- Integrated Leak Rate Test - Completed (April 9)
- 50 psig Test - Completed (May 6)
- 250 psig Test - Complete (May 25)
- Normal Operation Pressure Test - Completed (October 2)
October 7, 2003 Davis-Besse Nuclear Power Station 57 Normal Operating Pressure Test Heat Up
- Started heat up - September 13
- NOP Test was an opportunity to assess our people, plant, and processes
- Challenges during test were handled in a safe manner and posed a minimal safety risk
-Steam Line Noise - September 13
-Core Flood Tank Valve Opening - September 15
-Containment Spray - September 17
- Conclusion
-Plant issues were investigated and managed
October 7, 2003 Davis-Besse Nuclear Power Station 58 Normal Operating Pressure Test
- Total time of test
- > 8 days at Normal Operating Pressure
- Inspected 1300 components
- Overall Leak Rate
-Best in history of plant ~.006 gpm
- First-ever successful test of FLÜS Leak Monitoring System in the United States
- Proved that our new Reactor Coolant System leak rate program works
October 7, 2003 Davis-Besse Nuclear Power Station 59 Normal Operating Pressure Test
- Completed ~ 700 Post Maintenance/Modification Tests
- Tested most primary/secondary equipment
-Reactor Coolant Pumps
-Condensate Pumps
-Feedwater
-Makeup
-Circulating Water
-Condenser activities
- Demonstrated positive Safety Culture and teamwork
-Focused on Industrial Safety, Nuclear, and Radiological Safety
-Organization Effectiveness to resolve issues
-Problem Solving / Decision Making exercised
October 7, 2003 Davis-Besse Nuclear Power Station 60 Normal Operating Pressure Test Cooldown
-One bank of control rods were pulled as conservative action
- Problem Solving / Decision Making Team initiated
- Remainder of cooldown to Mode 5 not only event-less but error free
October 7, 2003 Davis-Besse Nuclear Power Station 61 Normal Operating Pressure Test Restart Test Plan
- Conclusions
-Focused on safety
-Demonstrated Reactor Coolant System integrity
-Significant Program Improvements
-Demonstrated state-of-the-art technology (FLÜS Leak Monitoring System)
-Containment and overall System Health is very good
October 7, 2003 Davis-Besse Nuclear Power Station 62 Mike Ross Restart Director Remaining Actions for Restart
October 7, 2003 Davis-Besse Nuclear Power Station 63
- Restart Actions include
-Completion of 10CFR 50.9, Completeness and Accuracy of Information training
-Alignment / teamwork sessions
- One day-long site alignment / teambuilding sessions with employees
- Learning Map rollout
- Operational focus
-Strengthen our Calculation Program Remaining Actions for Restart
October 7, 2003 Davis-Besse Nuclear Power Station 64
- Restart Actions include
-Strengthen our Condition Report Process
- Condition Report Evaluators will receive Apparent Cause training
- Establish an Apparent Cause Review Group consisting of Condition Report Analysts
-Corrective Action Trending
-Plant activities
- Electrical Transient Analysis Program (ETAP) modifications
- High Pressure Injection Pumps modification
- Repair Containment Air Coolers
- Electrical breaker co-ordination modification
- Finish AOV Modification work Remaining Actions for Restart
October 7, 2003 Davis-Besse Nuclear Power Station 65
- Restart Actions include
-Address Lessons-Learned and actions resulting from NOP Test
-Restart Readiness Reviews Remaining Actions for Restart
October 7, 2003 Davis-Besse Nuclear Power Station 66 Lew Myers Chief Operating Officer - FENOC Overall Conclusions
October 7, 2003 Davis-Besse Nuclear Power Station 67 Overall NOP Test Conclusions
- Many technical plant changes that improve overall plant safety
- NOP Test demonstrated
-Areas of improvement for people to safely operate the plant
-Response to emergent issues
-Condition of plant equipment
-Identified secondary leaks
-Integrity of reactor coolant system
-Replacement Reactor Vessel Head
-Incore monitoring instrument nozzles
October 7, 2003 Davis-Besse Nuclear Power Station 68 Overall NOP Test Conclusions
- Davis-Besse personnel are demonstrating a positive Safety Culture
- Davis-Besse is completing actions necessary to resume safe plant operation