ML23257A145
| ML23257A145 | |
| Person / Time | |
|---|---|
| Issue date: | 09/20/2023 |
| From: | Lundy Pressley NRC/NRR/DRA/APOB |
| To: | |
| References | |
| Download: ML23257A145 (1) | |
Text
ROP Bi-Monthly Public Meeting x
Enhancing Oversight of PRA Configuration Control x
September 20, 2023 Lundy Pressley Reliability and Risk Analyst Office of Nuclear Reactor Regulation Division of Risk Assessment PRA Oversight Branch
2 Completed Tabletops at facilities Dec 2022 Conduct public meeting Workshop with Tabletop sites/Industry Stakeholders Mar 2023 Developed Working Group recommendations for near-term path forward Feb/Jun 2023 Obtained Alignment with NRC Mgt. on PCC Proposal Mar 2023 Project Milestones Develop near-term oversight guidance (OpESS)
Summer 2023 Develop Enf./SDP strategy and Regional Panel Guidance Dec 2023 Issue Public Report on Tabletops Jun 2023 Gather feedback from near-term oversight, update as necessary 2024-2026 Develop long-term oversight process 2026
3 Key Messages Operating Experience Smart Sample (OpESS) provides maximum flexibility for regional implementation.
Cross-regional review panel process will ensure consistent application across the Regional Offices.
The WG is currently drafting the OpESS and associated guidance.
The OpESS is intended to be resource neutral and is part of the overall graded and balanced approach that will eventually determine the long-term recommendations for PRA Configuration Control (PCC),
which is targeted for implementation in the 2027 ROP inspection cycle.
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4 What is OpESS?
OpE - Operating Experience and SS - Smart Sample = OpESS The OpESS is designed as an additional tool to be used by agency staff in ROP baseline inspection preparation.
The information and trends identified from OpESS inspections may provide further indication that a specific issue warrants additional agency action.
Each OpESS has a unique and sequential identifier.
https://www.nrc.gov/reactors/operating/ops-experience/operating-experience-smart-sample.html 4
5 What will the OpESS look like?
Balanced approach will ensure that inspectors only review aspects from approved and implemented risk-informed initiatives.
Performance-based in that sampling will be reviewed and adjusted annually until issuance of final recommendations.
x
- Not all sites would get sampled each year with the OpESS, intent is to use as warranted.
- WG will provide inspectors with guidance (insights/specifics) on appropriate use/utilization of the OpESS.
OpESS SFCP NFPA 805 RICT 50.69
6 Applicable OpESS Inspections PRIMARY Inspection Procedures:
71111.21M, Comprehensive Engineering Team Inspection, (CETI) 71111.21N.05, Fire Protection Team Inspection (FTPI) 37060, 10 CFR 50.69 Risk-Informed Categorization and Treatment SSC Resident Baseline: 71111 71111.06, Flood Protection Measures, 71111.13, Maintenance Risk Assessments and Emergent Work Control 71111.18, Plant Modifications (Primary) 71111.24, Testing and Maintenance of Equipment Important to Risk.
71151, Performance Indicator Verification 71152, Problem Identification and Resolution (PI&R)
7 7
OpESS Proposed Details
- 1. Verify processes are in place to maintain risk-informed decisions, (i.e., new information and data).
- 2. Verify processes are in place to ensure the PRA is maintained with the as-built as operated plant.
- 3. Verify significant modifications to the plant screened for review and any needed updates to the PRA and the Model of Record.
Guidance can be applied in 2-stages:
- 1. Forward looking (future changes) and,
- 2. Backward looking (past completed changes, e.g., last MOR change/inspection etc.).
Intent would be to revise the OpESS for the subsequent ROP Cycle (2025) based upon observed performance (2024) and refocus, as necessary.
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OpESS Proposed details (cont.)
Inspections which would focus on completed changes (i.e., backward-looking):
1.
71111.21M, Comprehensive Engineering Team Inspection, (CETI),
2.
71111.21N.05, Fire Protection Team Inspection (FTPI),
3.
37060, 10 CFR 50.69 Risk-Informed Categorization Inspections which would focus on current in-progress changes (i.e., forward-looking):
Resident Baseline: 71111, (with latitude for possible interactions) 1.
71111.06, Flood Protection Measures, 2.
71111.13, Maintenance Risk Assessments and Emergent Work Control, 3.
71111.18, Plant Modifications (Primary),
4.
71111.24, Testing and Maintenance of Equipment Important to Risk, 5.
71151, Performance Indicator Verification, 6.
71152, Problem Identification and Resolution (PI&R)
9 Near-term Actions - OpESS Finalize OpESS guidance (Ongoing - Expected Nov/Dec 2023)
Internal Communication/Awareness (Ongoing - Fall/Winter)
Training and Communication with Inspectors (Ongoing - Fall/Winter)
Enforcement/Significance Determination Process Initiate Cross Regional Panel Process (Complete)
Develop Screening Guidance (Ongoing - Fall/Winter)
Continue External Communication/Awareness (ROP Bi-Monthly)
10 Questions