ML18057A215
| ML18057A215 | |
| Person / Time | |
|---|---|
| Issue date: | 02/26/2018 |
| From: | Isom J Division of Inspection and Regional Support |
| To: | |
| Isom J, NRR/DIRS,415-1109 | |
| References | |
| Download: ML18057A215 (23) | |
Text
USNRC Engineering Inspection Review
Engineering Inspection Review Objective Discuss recommendations of Engineering Inspection Working Group with stakeholders and seek feedback 2
Engineering Inspection Review Principal Considerations
- Consider stakeholder input
- Increase or maintain effectiveness
- Independent oversight
- Identification of latent conditions
- Increase relevance to current challenges 3
Engineering Inspection Review Principal Considerations (Contd.)
- Increase efficiency
- Eliminate overlap
- Capture advantages of holistic inspection of engineering design changes
- Knowledge gained from inspection experience
- 18+ years
- Value of independent inspection
- Credible assessment of plant design 4
Engineering Inspection Review Overall Results
- Conduct independent NRC engineering inspections annually
- New suite of engineering inspection procedures
- Holistic, agile, flexible, relevant
- Reduced overlaps and addressed gaps
- Maintain reasonable assurance of safety 5
Engineering Inspection Review Current Engineering Inspections (Triennial Period)
Year 1 Year 2 Year 3 DBAI - Programs Triennial Fire Protection BI: 192 Hours DBAI - Team Inspection BI: 240 Hours Resources: 3 Inspectors BI: 312 Hours Resources: 3-4 Inspectors Onsite Presence: 2 Weeks Resources: 4 Inspectors / 2 Contractors Onsite Presence: 2-3 Weeks Onsite Presence: 2 Weeks Heat Sink Inspection 50.59 Inspection BI: 40 Hours BI: 92 Hours Resources: 1-2 Inspectors Resources: 3 Inspectors Onsite Presence: 1 Week Onsite Presence: 1 Week Inservice Inspection Inservice Inspection BI: 30 - 100 Hours BI: 30 - 100 Hours Resources: 1-2 Inspectors Resources: 1-2 Inspectors Onsite Presence: 1-2 Week(s) Onsite Presence: 1-2 Week(s) 6
Engineering Inspection Review Proposed Engineering Inspections (Quadrennial Period)
Year 1 Year 2 Year 3 Year 4 Comprehensive Focused Engineering Focused Engineering Focused Engineering Engineering Team Inspection #1 Inspection #2 Inspection #3 BI: 210 Hours BI: 210 Hours BI: 210 Hours Inspection Resources: 3 Inspectors Resources: 3 Inspectors Resources: 3 Inspectors BI: 350 Hours Onsite Presence: 2 Weeks Onsite Presence: 2 Weeks Onsite Presence: 2 Weeks Resources: 5 Inspectors / 2 Contractors Onsite Presence: 2 Weeks Inservice Inspection Inservice Inspection BI: 30 - 100 Hours BI: 30 - 100 Hours Resources: 1-2 Inspectors Resources: 1-2 Inspectors Onsite Presence: 1-2 Week(s)
Onsite Presence: 1-2 Week(s) 7
Engineering Inspection Review Future Engineering Inspections
- Identify if latent design issues are introduced through design changes
- Verify SSCs continue to be capable of performing as designed through a emphasis on more relevant areas (aging, obsolescence, etc.)
- Verify changes do not introduce new or increased frequency of initiating events 8
Engineering Inspection Review Comprehensive Engineering Team Inspection (CETI)
- Emphasize inspection on changes, operating experience, and aging
- Incorporates elements of modifications, 10CFR50.59, and DBAI inspections
- Team makeup of five inspectors with one or two contractors for two onsite weeks 9
Engineering Inspection Review Focused Engineering Inspection (FEI)
- Independent inspection of specific engineering activities
- Areas may be identified with stakeholder input, selected by NRC
- Risk insights and operating experience considered 10
Engineering Inspection Review FEI (Contd)
- Nominally three inspectors for two onsite weeks depending on inspection (focus area dependent)
In-Service Inspection
- Added periodic oversight of 10-year program implementation
- Continue inspections during outages 11
Engineering Inspection Review Resource Implications Current 3 Year Cycle Proposed 4 Year Cycle Total Number of 7 Inspections 6 Inspections Inspections Annual Onsite Weeks 3.66 weeks/yr 2.75 weeks/yr (11 onsite weeks) (11 onsite weeks)
Average Inspection 293 Hours 245 Hours Hours per Year Overall reduction in annualized baseline inspection and associated prep/doc 12
Engineering Inspection Review Improved safety inspections
- Annual independent NRC engineering inspections
- New suite of engineering inspection procedures
- Holistic, agile, flexible, relevant
- Reduced overlaps and addressed gaps
- Maintain reasonable assurance of safety 13
Engineering Inspection Review Recap of EIWG Recommendations Implement changes to engineering inspections Increased effectiveness Increased efficiency Increased agility Increased relevance 14
Engineering Inspection Review Recap of EIWG Recommendations (Continued)
Reduce types of inspections from 6 to 3 Increase inspection cycle from 3 years to 4 years Implementation Timeline Considerations Immediate?
2019?
2020?
15
Future Considerations Licensee Self Assessments
Engineering Inspection Review EIWG Recommendations
- Continue dialog on self-assessments
- Industry develop self-assessment standard
- Consider implementation of a project demonstration with independent NRC oversight
- Establish criteria for use (e.g., licensee in Column 1 for three consecutive years?)
- Establish limitations on use 17
Engineering Inspection Review Self Assessment Standard
- Proposed by industry and reviewed/approved or endorsed by NRC
- Must address
- Independence
- Clarity and Reliability (self-critical)
- Openness
- Efficiency 18
Engineering Inspection Review Project Demonstration
- Using the industry-developed standard
- NRC to provide oversight
- Select same area as FEI
- Compare self-assessment results with NRC independent inspection 19
Engineering Inspection Review Challenges
- Industry development of a self-assessment standard
- NRC guidance for review of self-assessment
- Findings, transparency, and other issues 20
Engineering Inspection Review Self Assessment Considerations Year 1 Year 2 Year 3 Year 4 Comprehensive Focused Engineering Focused Engineering Engineering Team Inspection #1 Inspection #2 Inspection BI: 210 Hours BI: 210 Hours Licensee Self-Assessment BI: 350 Hours Resources: 3 Inspectors Resources: 3 Inspectors Resources: 5 Inspectors / 2 Contractors Onsite Presence: 2 Weeks Onsite Presence: 2 Weeks Onsite Presence: 2 Weeks Inservice Inspection Inservice Inspection NRC Inspector Oversight BI: 30 - 100 Hours BI: 30 - 100 Hours BI: TBD Resources: 1-2 Inspectors Resources: 1-2 Inspectors Resources: TBD Onsite Presence: 1-2 Week(s) Onsite Presence: 1-2 Week(s) Onsite Presence: TBD 21
Engineering Inspection Review Next Steps/Milestones
- March 14 RIC Session on Engineering Inspection Working Group
- Finalize Engineering Inspection Working Group recommendations (EIWG)
- Develop SECY (DIRS)
- Industry self-assessment standard engagement (DIRS)
- Project demonstration 22
Recap Additional Feedback Questions?