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8/12/2019 Risk-Based Oversight
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Fall 2005Nuclear Oversight Conference
Strategies forImplementing
Risk-Based Oversight
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In This Presentation:
Excerpts from the St. Lucie Nuclear
Assurance Business Plan: Department Areas of Emphasis Administrative Letter 17, Risk Based
Oversight Daily process used for assigning oversight Results
Risk -B ased Overs ig h t
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St. Lucie Nuclear Assurance Organization
Kathi ButlerStaff Technician
Ed ArmandoSRO (PWR, BWR)
Bruce ParksSRO (PWR)
Lead AuditorQC Inspector (Mech II)
John HaugerSRO (PWR)
Bob EavensonChem Tech
QC Inspector (Mech I)
VACANCYRadiation Protection
Mike SnyderAudit Supervisor
Areas = Operations,RP / CHM
Kathy GettyISI/IST, ENG
QC Inspector (Mech I)Lead Auditor
John LuchkaChem, Ops
QC Inspector (Mech II)Lead Auditor
Jim McNeySecurity
QC Inspector (Mech I)Lead Auditor
Doug MelodyQC Level III Elec/IC
QC Inspector (Mech II)Lead Auditor
Bob CarrollEngineer
Dom FucaTechnical Reviews and Assessements Supv.
Areas = Engineering,Fire Protection
George IngramQC Level III Mech
QC Inspector (Elec/IC II)Lead Auditor
Mike MeileyQC Level III Civil
QC Inspector (Mech I)
Jim NormanQC Inspector (Mech II)
QC Inspector (Elec/IC I)QC Inspector (Coatings II)
Lou PanessaQC Inspector (Elec/IC II)QC Inspector (Mech II)QC Inspector (Civil II)
VACANCYQC Inspector
Greg PustoverQuality Control Supervisor
Areas = Maintenance,Work Management
Rob De La EspriellaSite Quality Manager
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Areas of Emphasis*:
Nuclear Safety
Plant Reliability
Risk Significant ctivities
*Established in 2000
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Areas of Emphasis:
Nuclear Safety
RCS Pressure Boundary SSCs required to mitigate theconsequences of an accident
SSCs required to shutdown and maintainthe plant in a safe condition
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Areas of Emphasis:Plant Reliability
Processes and Procedures that supportequipment reliability System Health Reports Plant Health Committee Maintenance Rule Work Management Process Outage Management PM Optimization
Critical Spare Parts Program
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Areas of Emphasis:Risk Significant ctivities
Risk = Probability + Consequences(Error Rate) (Defense in Depth)
Risk -B ased Overs ig h t
Error Rate: Work Preparation Work Performance Work Feedback
KEY: Focus on CRITICAL TASKS
Defense-in-Depth: ENGd Controls
ADMIN Controls Oversight Controls
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Administrative Letter 17,Risk Based Oversight
SCOPE:
Risk-management is a fundamental component ofmaintaining safety at operating nuclear power plants. The guidance in this AL defines how theQuality Department evaluates the risk associatedwith plant activities on a daily basis, and howQuality Department Supervisors will establish theappropriate oversight plan based on relative risk,department priorities and available resources.
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Administrative Letter 17Risk Based Oversight
INPUTS: St. Lucie Nuclear Plant Daily Status Reports for
both units (including operational focus items andunplanned control room annunciators)
Configuration Risk Management ProgramImplementation (ADM-17.16)
Daily Configuration Risk Management Program(CRMP) calculations (Modes 1, 2, 3) CRMP / Shutdown Safety Assessments (Modes
4,5,6, defueled) Operations control room logs for both units
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Administrative Letter 17Risk Based Oversight
INPUTS:
The Top Ten Equipment Issues list for the station The list of Operator Work-Arounds and Burdens The list of control room deficiencies for both units The list of Red and Yellow PWOs being worked for
the week The list of Maintenance Rule systems in a(1)
status The list of System Health Reports with RED
systems
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Administrative Letter 17Risk Based Oversight
Nuclear Safety Elements1. Operations
Conservative Decision Making Culture Use of OLRM/Shutdown Safety Assessments Involvement in Work Management & Equipment
Reliability2. Configuration Management
Design (e.g. TEDB, Drawings & Plant)
Operational Margin (e.g. GL 91-18 evolutions) Regulatory Control ( e.g. Tech Specs)3. Equipment Reliability
System Health Monitoring Maintenance Rule Program
4. On-site / Offsite Safety Review Committees - Oversight
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Administrative Letter 17Risk Based Oversight
Plant Reliability Elements1. Work Management
Daily Scheduling & Planning Outage Scheduling & Planning Metrics & Process Improvements
2. Maintenance Corrective Elective On-line Maintenance (CMMs) Predictive Preventative Modifications
3. Corrective Action Program Problem identification Problem resolution Self Assessments Significant Events/Root Cause
4. Chemistry Controls Primary (SG tubes) Secondary (e.g. Secondary Pipe Walls)
ODCM controls
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Administrative Letter 17Risk Based Oversight
Other Risk Significant Activities
1. Personnel Safety Industrial (e.g. PPE, Fall Protection,
Confined Space, Electrical Shock) Radiological Protection
2. Emergency Preparedness3. Security4. Fire Protection5. Training (e.g. Qualifications & Safety Culture)
Risk -B ased Overs ig h t
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Administrative Letter 17Risk Based Oversight
DAILY ASSIGNMENTS: Assessment of individual risk Assessment of aggregate risk Assignments based on skills available Tracking assignments to conclusion
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Risk -B ased Overs ig h tRisk Based Oversight for Wednesday 9/1/04
Protected Train: BC o n d i t i o no r A c t i v i t y
R i s k A g g r e g a t eR i s k
I s s u e s o r C o n c e r n s P l a n tS c h e d
ule
O v e r s i g h t Ta s k A s s i g n e e P r o d u c t s C N OD N ASQM
ReactivityManagementoversightgroupmeetings
Lack ofoversight =Potential forReactivityMgmt event
Secondarysystems thatcan affectreactivity notbeing properlymaintained
Is the ReactivityManagementOversight groupoperatingeffectively/adequately
Access station'ssensitivity toReactivityManagement
CR / DQS/ QR
RCS LeakRate -30Day LCOstarted8/23/04
Potential RCSpressureboundary leak
Problems withRCS leakdetectionequipment incontainment
Flange downstream ofV-1452 (top of Pzr)leaking
1330meeting
Leak repair activities
QR - PanessaDeveloping V1452repair plan
CR / DQS
1A ICWPedestal
SeismicIntegrity ofLevel 2Structures
Backlog andLack of fundingfor level 2PWOs
Continual long termdegradation with norepairs on correctiveactions
Meeting@ 1000
Surveillance ofStorm Action Plandevelopment
DQS
1A ECCS onlinemaintenance
ORLMcontributor
Critical MaintenanceManagement couldresult in exceedingLCO and a unitshutdown
Preps & Executionof CMM (dependentof HurricaneFrances)
DQS CNO
Fire Sealsdo not matchdesign
A fire couldspread andaffect systemsneeded forsafe (App R)shutdown
Security Firewatches werefalsifying logs
Fire seals do not meet10 CFR App R andlicensing basis
10/31 Inspect Fire Seals -LER inspectioncommitment for QCfrom QA Finding
DQS
Hurricaneapproaching- SevereWeatherPreps
EmergencyPreparedness maintainingthe ERO intact
Low number ofqualified peoplein somepositions
Hurricane FrancesHurricane Jeanne
9/19/21
Ensure storm prepsare adequatelyimplemented
DQS
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Risk -B as ed Overs ig h tResults:
Area Issues Identified
Boric Acid Corrosion
Controls
Significant weakness in process
for addressing active leaksConfigurationManagement
- Breakdowns in control of mods- Lack of control of EQ panels
ReactivityManagement
Lack of sensitivity to secondarysystems affecting reactivity
Equipment Reliability Longstanding equipmentreliability issues linked toweaknesses in corporate long-range planning
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