ML023240320
| ML023240320 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 10/31/2002 |
| From: | Tennessee Valley Authority |
| To: | Office of Nuclear Reactor Regulation |
| Hoffman ST, NRR/DRIP/RLEP, 415-3245 | |
| References | |
| Download: ML023240320 (9) | |
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m Tennessee Valley Authority Browns Ferry Nuclear Plant Units 1, 2, and 3 License Renewal Application Qft W77",T 7,
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Agenda Introduction Application Approach - Unit 1 Application Examples Application Review Schedule Closing Remarks Tim Abney Ray Alexander Gary Adkins Tim Abney Tim Abney 4
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1
Introduction
- Meeting Objectives Present TVA's approach for the preparation of a three-unit license renewal application for Browns Ferry Nuclear Plant using the latest standard application format Provide the Staff with examples that demonstrate the impact of Unit 1 restart activities on the application Obtain Staff feedback on TVA's approach
- ". Background
>' License renewal letter of intent submitted on June 1, 2000 TVA Board decision to restart Unit 1 on May 16, 2002
>' TVA/NRC meeting on July 24, 2002 to discuss plans for a three-unit license renewal application o:o License Renewal Project Status
- =. Unit 1 Restart Program Status Tim Abney
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"*l Application Approach-Unit I WTVA plans to submit using the standard application format guidance for the class of 2003 Unit I differences will be annotated in combined application format similar to previous multi-site applications from other utilities
- . Operating experience Three identical units - Units 2/3 OE applicable to Unit 1
- . AMRs - same aging management programs are credited for all three units Common aging management programs will be evaluated against the GALL and credited for all three units Ray Alexander
Application Approach Unit 1, continued
- The Unit 1 current licensing basis is well-known, documented Unit 1 elements of the SAR have been maintained Unit differences identified
>' SAR update planned just prior to LRA submittal Unit I Technical Specifications converted to Improved Standard & Unit I TRM issued in 1998
- . In addition to the SAR, the following licensing and design basis documents are currently being used for Unit 1 scoping, screening and material identification Safe Shutdown Analysis Engineering Specifications, Design Standards Design Criteria Documents System Mechanical Control and Flow Drawings (verified by walkdown)
> Bills of Material Station Blackout Calculation Vendor Manuals/Drawings Electronic Docket
Application Examples
- o Main Steam Modification - FAC resistant piping installation Results in a material change (sub-material) in the Browns Ferry license renewal database No new application commodity type No impact on scoping and screening results
- o RHR & Recirculation Systems Modification - IGSCC resistant piping installation Sub-material change in the database Scoping results - no application impact AMR results - no application impact o:o Main Steam Unit 1 Modification - Increased MSIV allowable leakage Intended function difference has minor impact on scoping results AMR results annotated based on current Unit 1 licensing basis No new aging management programs Staff review of the aging management programs credited in the application directly applicable to the ultimate Unit 1 licensing basis
- Other Examples Connection of Unit 1 piping to existing Auxiliary Decay Heat Removal System New system for Unit 1 In scope for containment isolation function Hardened Wet-Well Vent New installation for Unit 1 In scope for primary containment function Gary Adkins
Application Examples, continued
- TLAA Example - Reactor Pressure Vessel Integrity
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Unit 1 licensing basis differences annotated 52 EFPY analysis for all three units being performed by the extended power uprate project
- Appendix B Program Example - Flow Accelerated Corrosion Program Common program applied to all three units TVA responses to Staff RAIs applicable to all three units Unit 1 implementation commitment Gary Adkins 6
Application Review Schedule
- Staff review of the three-unit BFN license renewal application can be completed more efficiently than two separate applications No unique aging management programs required for Unit 1 License renewal inspections can be coordinated with Unit I restart inspection activities
- ITVA recognizes that the review may take longer than the standard review schedule
- ITVA is willing to make more frequent 10 CFR 54.21(b) updates to the application
- A Unit I license condition is acceptable to allow all three licenses to be issued concurrently
>' TVA will not restart Unit 1 without NRC approval Final closeout inspection if necessary Tim Abney 7
Closing Remarks
- o Browns Ferry three-unit application is consistent with Commission goals for license renewal Maintain safety No safety impacts associated with a three-unit application Increase effectiveness and efficiency Three-unit application is the most cost-effective use of NRC resources Shutdown/defueled condition of Unit 1 provides unique inspection opportunities Reduce regulatory burden Three-unit economies of scale for TVA resources Environmental data/conclusions review and re-work may be required if the Unit 1 application is delayed
>) Increase public confidence Tim Abney 8