ML24129A066
| ML24129A066 | |
| Person / Time | |
|---|---|
| Site: | Technical Specifications Task Force |
| Issue date: | 05/08/2024 |
| From: | Technical Specifications Task Force |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML24129A066 (1) | |
Text
Technical Specifications Task Force A Joint Owners Group Activity TSTF 1
Historical Review of Traveler Adoption by Licensees
Technical Specifications Task Force A Joint Owners Group Activity TSTF Introduction
- The TSTF began tracking adoption of TSTF travelers in 2000 based on a monthly review of docketed LARs.
- There are 90 tracked travelers, excluding T travelers (mostly Bases changes).
- We have recorded 1,769 adoptions (submittals and approvals).
- This does not include adoptions that are included in the 18 ITS conversions approved since 2000.
- Percent adoption is based on the number of plants to which the traveler is applicable.
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Technical Specifications Task Force A Joint Owners Group Activity TSTF High Adoption 32 Travelers (36% of travelers) Have > 75% Adoption Notable:
100%
TSTF-358, Rev. 6, Missed Surveillance Requirements 100%
TSTF-369, Rev. 1, Removal of Monthly Operating Report and Occupational Radiation Exposure Report 100%
TSTF-413, Rev. 0, Elimination of Requirements for a Post Accident Sampling System (PASS) (NEDO-3299) 100%
TSTF-425, Rev. 3, Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5b 100%
TSTF-442, Rev. 0, Elimination of Requirements for a Post Accident Sampling System (PASS) 100%
TSTF-448, Rev. 3, Control Room Habitability 100%
TSTF-449, Rev. 4, Steam Generator Tube Integrity 100%
TSTF-479, Rev. 0, Changes to Reflect Revision of 10CFR50.55a 100%
TSTF-497, Rev. 0, Limit Inservice Testing Program SR 3.0.2 Application to Frequencies of 2 Years or Less 100%
TSTF-535, Rev. 0, Revise Shutdown Margin Definition to Address Advanced Fuel Designs 100%
TSTF-542,Rev. 2, Reactor Pressure Vessel Water Inventory Control 98%
TSTF-447, Rev. 1, Elimination of Hydrogen Recombiners and Change to Hydrogen and Oxygen Monitors 97%
TSTF-366, Rev. 0, Elimination of Requirements for a Post Accident Sampling System (PASS) 95%
TSTF-404, Rev. 0, SDV Actions 95%
TSTF-564,Rev. 2, Safety Limit MCPR 95%
TSTF-359, Rev. 9, Increase Flexibility in MODE Restraints 90%
TSTF-582, Rev.0, RPV WIC Enhancements 90%
TSTF-484, Rev. 0, Use of TS 3.10.1 for Scram Time Testing Activities 58 Travelers (64% of population) have > 50% adoption 3
Technical Specifications Task Force A Joint Owners Group Activity TSTF Lower Adoption
- Of the 32 travelers with adoption by < 50% of the applicable plants:
- 4 were recently approved (2023 and 2024)
- 2 were superseded
- 4 were improvements to the NUREG that would usually only be adopted during an ITS conversion, which is not tracked.
- 5 were only applicable if a subject plant has a particular need (e.g.,
neutron absorber monitoring program for a SFP rerack)
- 9 were early risk-informed changes. Many of the early RI travelers were proof of concept with limited operational benefit.
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Technical Specifications Task Force A Joint Owners Group Activity TSTF Lessons Learned
- The Owners Groups track utilization of products, such as travelers, and periodically review lessons learned.
- In 2018, the PWROG began developing project authorizations and budgets for individual travelers, increasing selectivity and oversight.
- Considering the early risk-informed travelers, the Owners Groups are more cautious of changes that can be done versus should be done.
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Technical Specifications Task Force A Joint Owners Group Activity TSTF Conclusion
- The traveler process is robust and results in the largest category of licensee amendment requests submitted by licensees.
- Licensee decisions on when or if to adopt a traveler are dependent on many factors, such as difficulty, benefit, utility resources, and competing priorities.
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