ML070120142
| ML070120142 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 01/10/2007 |
| From: | Reyes L NRC/EDO |
| To: | |
| References | |
| Download: ML070120142 (30) | |
Text
COMMISSION BRIEFING SLIDES/EXHIBITS BRIEFING ON BROWNS FERRY UNIT 1 RESTART JANUARY 10, 2007
Browns Ferry Unit 1 Restart January 10, 2007 ILuis Reyes, Executive Director for Operations
Agenda
- Licensing Status
" Inspection Status
- Summary 2
Licensing Status
" License Amendments, Relief Requests, Exemptions
" Special Programs
- Application submitted on January 6, 2004
" ACRS approval letter of March 23, 2006
" Licenses renewed for all 3 units on May 4, 2006
" Over 9,000 staff hours for Unit 1 reviews (16,000 staff hours for Units 2 & 3)
/4
License Amendments, Relief Requests, Exemptions
- 21 aimendments submitted for restart
- 17 completed, remainder are on schedule
- 12 relief requests and 3 exemptions completed
- About 13,000 staff hours 5
U Special Programs
" Review of generic letters and bulletins
- Three Mile Island action items (NUREG-0737)
- Fire protection
" About 8,000 staff hours 6
Unit I Power Uprate o Unit I uprate to 105% for restart
- Draft safety evaluation to ACRS on December 1, 2006
- ACRS subcommittee meets on January 16, 2007
- ACRS full committee meets on February 1, 2007 7
Extended Power Uprate Issues For The 3 Units
" Steam Dryer Integrity
" Large Transient Testing
" Containment Accident Pressure
" Fuel Methodology 8
Regulatory Oversight
- IMC 2509 addresses Unit I
- Requirements for inspections
- Key features used from IMC 0350
- Transition to ROP
- Reactor Oversight Process (ROP)
-4 of the 7 cornerstones already in use 9
Inspection Status
- Staff Support
- Areas of Inspection
" Remaining Inspections
- System Preoperability Checklist
- Operational Readiness Assessment Team
- Restart and Power Ascension Testing Inspections 10
Performance Assessment
- NRC to TVA letter dated 8/15/06 discussed plant performance
" Unit I Enforcement History
- Unit I Allegations 11
Restart Inspection Status E-Open Items with scheduled inspections El Open Items with field inspection complete N Closed Items 12
IMC 2509 Restart Process Panel & Regional Management briefed on ORAT Panel recommends estart I.
NRR/Rll
< Consultatio 13
Summary
" Unit I preparations continue to be performed in a safe manner
" ORAT inspection will provide insight into status of readiness
- Request authority for Unit I restart in accordance with IMC 2509 14
" ACRS-Advisory Committee on Reactor Safeguards
- IMC-Inspection Manual Chapter
" EPU-Extended Power Uprate
- NRR,- Office of Nuclear Reactor Regulation 15
- ORAT-Operational Readiness Assessment Team SRA-Regional Administrator
- SPOC-System Pre-Operability Checklist 16
TENNES ALLE AUTORI TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT UNIT 1 RESTART NRC Commission Briefing January 10, 2007
Agenda 0 Introduction Karl Singer
- Unit-1 Recovery Overview
- Recovery Process
- Operational Readiness
- Conclusion Ashok Bhatnagar Masoud Bajestani Brian O'Grady Karl Singer Karl Singer 2
Introduction AH -ft
- We are Confident that it is Safe to Operate Browns Ferry Unit 1 Identical to Units 2 & 3 restart processes o Rigorous design and modification process through turnover to operations o Extensive testing, self assessments and quality oversight o Unit 1 returns to service with improved margins Operational perspective throughout modification and testing Time and resources to do the job right Karl Singer 3
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M Control Rod Drive Accumulators Elevation 565 West side November 2006 G" 'M hf.j
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MI Reactor Water Cleanup Pump 1A Elevation 593 December 2002 N
Deeme 11 200 December 2006 5
IMI Standby Liquid Control Elevation 639 May 2002 I I 1W U
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Unit 1 Recovery
" Regulatory Framework Agreed to Between NRC and TVA
" Unit 1 Recovery Based on Lessons Learned from Units 2 & 3
" Scope of Unit 1 Restart Project Incorporated:
- The same restart programs as Units 2 & 3 The same upgrades as installed on Units 2 & 3 including Power U prate (105%)
- Unit 1 has the Same Licensing Basis as Units 2 & 3
" Unit 1 is Operationally Similar to Units 2 & 3
" Effective Recovery Process used for Units 2 & 3 Yielded a Ten Yearý Gross Capacity Factor - 91.5%
Ashok Bhatnagar 7
Rigorous Recovery Process Project is 98% Complete All design modification packages issued Bulk of design modifications implemented o Drywell work complete o Reactor Building work essentially complete o Remaining work is primarily balance of plant systems o NRC inspection of 26 of 30 Special Programs complete 38 Systems modification complete Two Phased approach to system completion o Modification and component testing complete o System and surveillance testing complete Masoud Bajestani 8
System Turnover & Test
- Restart Test Program Purpose Post-maintenance and post-modification component testing
- System testing Integrated system testing
- System Turnover Process Organizations Involved Key Elements Rigorous / Disciplined approach to demonstrating system operability Results to date Brian O'Grady 9
System Turnover & Test
- Fuel Load Completed December 22, 2006
- Power Ascension Test Program Systematic, controlled approach to full power Single pump trip tests Large transient testing o Generator load reject o Main steam line isolation valve closure Brian O'Grady 10
IIVAI Trained/Qualified Staff
" Staffed for Safe Three Unit Operation
- Successful Transition to an Operating Organizational Structure
- Operations Organization
- Experienced staff
- Licensed on all three Units Brian O'Grady 11
Comprehensive Oversight
- Self Assessments Department Self Assessments Challenge Boards Corrective Action Program
- Operational Readiness Assessment Program Nuclear Safety Review Board (with external members)
Institute of Nuclear Power Operation Review
" Nuclear Assurance Formal program audits Focused assessments Unit 1 Startup Oversight Plan
- NRC Inspection Activities Brian O'Grady 12
Conclusion IRAI
" Work is Nearly Done
- Recovery Processes are Effective and Yielding Positive Results in our Testing
" Readiness Reviews and Assessments Complete
- Plant Ownership is Imposing High Standards of Nuclear Safety
" Regulatory Process and Communications are Sound Karl Singer 13