ML21265A042
| ML21265A042 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 09/21/2021 |
| From: | Jim Barstow Tennessee Valley Authority |
| To: | Luke Haeg NRC/NRR/DORL/LPL2-2 |
| Haeg L | |
| References | |
| Download: ML21265A042 (14) | |
Text
License Amendment Request Revise Browns Ferry Technical Specifications to Adopt TSTF-205, Revision of Channel Calibration, Channel Functional Test, and Related Definitions, TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program, and Rescind Surveillance Requirement Changes September 22, 2021
Agenda Describe future license amendment request (LAR)
Scope of the Request Variations from TSTF-205 Variations from TSTF-563 LAR Schedule Summary Questions/Comments?
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Scope of the Request The scope of the LAR is:
Adopt TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program Adopt TSTF-205, Revision of Channel Calibration, Channel Functional Test, and Related Definitions Rescind the consolidations of 18 SRs approved under Amendments 315, 338, and 298 for each unit 3
Scope of the Request (continued)
TSTF-563 allows the use of the Surveillance Frequency Control Program (SFCP) to different components within an instrument loop with different surveillance frequencies, rather than a single frequency for the loop as a whole. Revises the TS definitions for Channel Calibration and Channel Functional Test in NUREG-1433 Rev. 4 TSTF-205 revised the TS definitions of Channel Calibration, Channel Functional Test, and Logic System Functional Test in NUREG-1433 Rev. 1.
Accordingly, in order to adopt TSTF-563, TSTF-205 needs to be in the scope of the LAR.
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Scope of the Request (continued) 5
Scope of the Request (continued)
TSTF-425 SR Consolidation Rescissions In Amendments 315, 338, and 298 the NRC approved TSTF-425 for use of the SFCP for the three Browns Ferry units. As part of the associated LAR, TVA proposed to consolidate 18 SRs for Channel Checks, Channel Calibrations, Channel Functional Tests, and Logic System Functional Tests, as they now had the common Frequency of In accordance with the Surveillance Frequency Control Program.
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Scope of the Request (continued)
TSTF-425 SR Consolidation Rescissions 7
Scope of the Request (continued)
TSTF-425 SR Consolidation Rescissions This was viewed as a simplification that would promote consistency with the ITS Writers Guide.
Under-estimated the magnitude of effort to change Surveillance Instructions and Maintenance Plans that referenced the deleted SRs.
Increased likelihood for human error for TS Instrument Functions that had different Frequencies within the SFCP, but now had the same SR number designation.
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Scope of the Request (continued)
TSTF-425 SR Consolidation Rescissions LAR proposes to restore the SR numbers to their pre-TSTF-425 LAR status, but with Frequencies In accordance with the Surveillance Frequency Control Program. This aspect of the LAR is considered to be administrative in nature.
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Variations TSTF-563 -
No variations being taken.
TSTF-205 -
No variations being taken for the TS changes.
Minor variations being taken for associated Bases changes.
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Schedule
- Projected submittal in October 2021 with a requested approval within one year
- A 30-day implementation period is proposed 11
Summary LAR requests approval of adopting TSTF-205 and TSTF-563, and rescinding the SR consolidations made with the TSTF-425 LAR LAR is scheduled to be submitted in October 2021 with approval requested in one year, with implementation in 30 days 12
Questions/
Comments
???
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