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 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.
41 79 103 40 0
20 40 60 80 100 120 FY16 FY17 FY18 FY19 Number of Licensing Actions Risk-Informed Licensing Actions Received from FY16-FY19 Projected TMRE NTTF R2.1 50.69 Misc AOT TSTF-505, 4B GSI-191 TSTF-411 RI-ISI RI TS TSTF-425, 5B NFPA805 ILRT 41 3
Status of Major Risk-Informed Initiatives 4
- 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 4
Fire PRA Realism
6 Significant Progress Made on Addressing Fire PRA Realism Topics Most EPRI/RES Reports are nearly complete
- Four NUREGs are in or post public comment period
- NUREG on transient fire PRA modeling under development with expected completion of technical work in 2019 All but one Fire PRA FAQ are closed
- Ten FAQs were resolved, withdrawn, or consolidated into research activities
7 NRC On Track to Meet Two Year Target to Address FPRA Realism Topics Hold public meetings to resolve FPRA FAQ and communicate status of activities Complete draft revisions of RG 1.205 and RG 1.189 Support EPRI/RES fire realism activities Monitor industry efforts on VEWFDS (schedule controlled by industry)
NUREG 1921 Supp 2 NUREG 2232 FAQ 18-0014 FPRA Milestones Review Draft Final Draft Prepare Final Draft Prep for Publication Complete Final Draft NUREG 2230 Review Final Prep for Publication Contractor Comments 30 day Public Comment Incorporate comments NUREG 2178 Vol. 2 Review Final Prep for Publication 60 day Public Comment Incorporate comments; prepare final NRC response to NEI comments Public Mtg on FAQ Expect to Complete Follow Up Actions Transient Fire Modeling Methods Complete Final Draft Prepare Draft Review Draft Review Final 30 day Public Comment Updated Draft for WG WG Review 8
USNRC Activities to Improve Credit for FLEX Strategies
1 0
Credit for FLEX Challenges
1 1
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Credit for FLEX Task 1
- Finalize IDHEAS - General Methodology
- Audit Industry FLEX Data Task 2
- Benchmark Group assess range of FLEX cases
- Incorporated Data into SPAR Models Task 3
- Issue tool and guidance April 2020 Significance Determination Process
Recent Progress and Next Steps to Resolve Issue on Newly-Developed Methods in PRA
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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)
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Questions?