ML19253E411
| ML19253E411 | |
| Person / Time | |
|---|---|
| Issue date: | 08/22/2019 |
| From: | Mike Franovich NRC/NRR/DRA/APOB |
| To: | NRC/NRR/DRA/APOB |
| Alexander Schwab | |
| Shared Package | |
| ML19253E543 | List: |
| References | |
| Download: ML19253E411 (15) | |
Text
Risk-Informed Steering Committee Meeting Mike Franovich, Director Division of Risk Assessment, Office of Nuclear Reactor Regulation August 22, 2019
Risk-Informed Review Status Update Delivering on a High Volume of Risk-Informed Licensing Requests Risk-Informed Licensing Actions Received from FY16-FY19 120 Number of Licensing Actions 103 Projected 100 TMRE NTTF R2.1 79 50.69 80 Misc AOT 60 TSTF-505, 4B 40 GSI-191 41 TSTF-411 40 RI-ISI RI TS TSTF-425, 5B 20 41 NFPA805 ILRT 0
FY16 FY17 FY18 FY19 For FY19, 41 unit amendment requests received to date. An additional 40 unit amendment requests are expected, for a total of 81 unit amendment requests in FY19.
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Status of Major Risk-Informed Initiatives
- Five license amendments issued so far this FY
- An additional six LAR approvals anticipated by September 30
- Staff presented with significant challenges in review regarding deviations from uncertainty guidance and interfacing systems guidance
- NRC staff led successful workshop on Key Assumptions/Uncertainty July 18, 2019
- TSTF-505 RI Completion Times and TSTF-425 Surveillance Frequency Control Program
- Four TSTF-505 license amendments issued so far this FY
- One TSTF-505 SE for near-term issuance
- Other License Amendments recently completed successful combined audit at Exelon (Braidwood, Byron, and Limerick)
- Received positive feedback from licensee regarding Staff conduct of audit
- Six TSTF-425 license amendments issued so far this FY
- Two TSTF-425 LAR approvals nearing issuance 44
Fire PRA Realism Significant Progress Made on Addressing Fire PRA Realism Topics Most EPRI/RES Reports are All but one Fire PRA FAQ nearly complete are closed
- Four NUREGs are in or
- Ten FAQs were resolved, post public comment withdrawn, or period consolidated into
- Staff is expected to development with provide their position on expected completion of the remaining open Fire technical work in 2019 PRA FAQ in September 6
NRC On Track to Meet Two Year Target to Address FPRA Realism Topics Hold public meetings Complete draft to resolve FPRA FAQ revisions of RG 1.205 and communicate and RG 1.189 status of activities Monitor industry Support EPRI/RES fire efforts on VEWFDS realism activities (schedule controlled by industry) 7
FPRA Milestones Review Final Prepare NUREG 1921 Draft Draft Final Draft Supp 2 Incorporate comments; Review Prep for NUREG 2178 60 day prepare final Publication Public Comment Final Vol. 2 30 day Contractor Incorporate Review Prep for NUREG 2230 Public Comment Comments comments Final Publication Complete Prep for NUREG 2232 Final Draft Publication Transient Fire Updated WG 30 day Prepare Review Complete Review Modeling Draft Draft Draft for Review Final Draft Final Public WG Comment Methods Expect to Complete NRC response to Public Mtg FAQ 18-0014 on FAQ Follow Up Actions NEI comments 8
USNRC Activities to Improve Credit for FLEX Strategies
Credit for FLEX Challenges 1
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Credit for FLEX
- Finalize IDHEAS - General Methodology Task 1
- Audit Industry FLEX Data
- Benchmark Group assess range of FLEX cases Task 2
- Incorporated Data into SPAR Models
- Issue tool and guidance April 2020 Task 3 Significance Determination Process 1
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Recent Progress and Next Steps to Resolve Issue on Newly-Developed Methods in PRA
Next Steps
- Public Meeting (8/21) to provide NRC feedback on any issues that have not adequately dispositioned in NEI-17-07, PWROG-18056 and NEIs alternative TS
- Receive revised industry products (Target: 8/30)
- Hold follow-up workshop (Target: Mid September)
- Complete modifying processes/procedures (01/31/2020) 1 4
Questions?
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