ML060060555

Slides, Tennessee Valley Authority, Browns Ferry Nuclear Plant Unit 1 Restart Oversight Panel Meeting, December 7, 2005

ML060060555
Person / Time
Site:	Browns Ferry
Issue date:	12/07/2005
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
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ML060060553	List: ML060060554 ML060060555
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Download: ML060060555 (22)

Text

TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT UNIT 1 RESTART OVERSIGHT PANEL MEETING December 7, 2005 Enclosure 2

Introduction

• Welcome to the first public meeting for the Browns Ferry Unit 1 Restart Oversight Panel

• Purpose

- Review the project status

- Discuss upcoming activities

- Discuss challenges

- Solicit feedback Brian OGrady 2

Agenda

• Introduction B. OGrady

• BFN Site B. OGrady

• Organizational Changes B. OGrady

• Unit 1 Overview and Schedule M. Bajestani J. Valente E. Hollins

• Returning Systems to Service R.G. Jones

• Regulatory Status J. McCarthy

• Nuclear Assurance R. Baron

• Conclusion B. OGrady Brian OGrady 3

BFN Site

• Recent Organizational Change

• Three Unit Operation

- All three units operationally the same

- Site staffing plan

- New simulator

- Status of operational units

• Oversight

- Operational Readiness program

- Nuclear Safety Review Board

- Nuclear Safety Oversight Committee

• Overall Unit 1 Restart Project 73% Complete Brian OGrady 4

Organizational Changes Changes highlighted.

Brian OGrady 5

Unit 1 Overview and Schedule

• On Schedule for Start-up May 2007 Masoud Bajestani 6

Significant Milestones Masoud Bajestani 7

Unit 1 Overview and Schedule

• Engineering

- Current status Input for programmatic submittals completed Input for two Technical Specifications pending NRC SERs on Topical Reports (DSS-CD and MELLLA+)

Overall 88 percent complete

- Remaining activities Primarily in a field support role Closures System testing, Surveillance Instructions and integrated testing Completing System Plant Acceptance Evaluations (SPAE) and System Pre-operability Checklists (SPOCs)

Joe Valente 8

Inservice Vessel Visual Inspections

• Typical Vessel Diagram H10 H12 Joe Valente 9

Inservice Vessel Visual Inspections

• Core Shroud

- Ultrasonic Examination on 7 horizontal welds Indications noted on H1, H2, H3, H4, H5, H6, and H7 welds Acceptance criteria met and no modifications or repairs required

- Visual Examination on 4 remaining welds No recordable indications on H-8, H-9, H-10, and H-12 welds

• Jet Pump

- Visual Examination on all 20 Pumps

- Indications noted Set screw gaps and tack welds

- Disposition of these minor indications is in process Joe Valente 10

Inservice Vessel Visual Inspections

• Core Spray and Sparger

- Visual Examination Indications noted on sparger T-box weld Indications being evaluated

• Steam Dryer

- Visual examination of approximately 100% of the outside area Indications noted:

Drain channel welds Top panel horizontal weld Tack welds on hold down rod, gussets, and jacking bolt Drain channel weld repair in progress Disposition of other indications in progress Joe Valente 11

Inservice Vessel Visual Inspections

• Top Guide

- Visual Examination of the Top Guide Grid area

- Minor indications noted

- Disposition of minor indications is in process

• Feedwater Sparger

- Visual Examination of the sparger nozzles (per NUREG 0619)

- No Recordable Indication Joe Valente 12

Inservice Vessel Visual Inspections

• Other

- Visual Examination of reactor pressure vessel interior per ASME Code Requirements

- Access Hole Cover Modification

- Core Plate Plugs

- Shroud Head Bolts Replacement

- Jet Pump Sensing Line Clamp Modification

- Core Plate Hold Down Bolts Joe Valente 13

Unit 1 Overview and Schedule

• Current status

- Modifications are 69% complete

• Major Work Completed Since Last Meeting

- Completed Unit 1 HFA relay replacement

- Completed reactor vessel IVVI original scope

- Installed refurbished Component Cooling Water pumps and motors

- Installed refurbished Reactor Recirculation pumps and motors

- Performed stress improvement of welds

- Refurbished and reassembled the 1A Control Rod Drive pump

- Refurbished Control Rod Drive Hydraulic Control Units

- Refurbished and reassembled the inboard Main Steam Isolation Valves (MSIVs)

- Replaced Local Power Range Monitors (LPRMs)

- Replaced Source and Intermediate Range Monitors

- Replaced the 4KV breakers Elvis Hollins 14

Unit 1 Overview and Schedule

• Major Work In-progress

- Cable tray, conduit and support installation

- Control Rod Drive exchange

- Control Room Design Review modifications

- Core Spray and Residual Heat Removal room coolers replacement

- Large and small bore pipe replacement

- LPRM hard cable replacement

- Pipe hanger installation

- Refurbishment of outboard MSIVs

- Replacement of 185 control rod blades

- Switchyard breaker replacement and additions

- Traveling water screen refurbishment

- Upgrading Madison substation Elvis Hollins 15

Unit 1 Overview and Schedule

• Status of Major Commodities INSTALLED SINCE THE 7/20/05 CURRENTLY COMMODITY TVA/NRC MEETING INSTALLED* END OF PROJECT TOTAL Piping - Large Bore 2,342 feet 11,442 feet 15,267 feet Hangers - Large Bore 168 1,136 1,741 Piping - Small Bore 2,122 feet 14,512 feet 28,136 feet Hangers - Small Bore 757 3,500 6,167 Conduit 25,645 feet 123,675 feet 177,008 feet (331/2 miles)

Conduit Supports 2,685 13,920 20,483 Cable Terminations 13,515 35,631 106,265 Cable 129,193 feet 257,759 feet 870,788 feet (165 miles)

Cable Tray 621 9,034 9,747 Cable Tray Supports 40 1,481 1,534

• Installed as of November 20, 2005 Elvis Hollins 16

Returning Systems to Service

• System Plant Acceptance Evaluations

- 34 completed

- 27 scheduled in the next six months

• System Pre-operability Checklists (SPOCs) Phase I

- 11 completed

- 1 scheduled in the next six months

• System Pre-operability Checklists (SPOCs) Phase II

- 8 completed

- 2 scheduled in the next six months

• Residual Heat Removal Service Water Testing Completed

• Unit 1 / Units 2 and 3 Interface R.G. Jones 17

Regulatory Status ACRS SUBCOM MTG RESTART NRC ACRS BFN LICENSE TS RESTART SITE VISIT RENEWAL APPROVALS APPROVAL REGULATORY MILESTONES U1 STATUS MTG U1 ACRS RESTART TS ACRS MTG LICENSE TRANSITION ATLANTA SUBCOM SUBMISSIONS LICENSE RENEWAL REMAINING MTG COMPLETE RENEWAL APPROVAL (FUEL LOAD) (MODE 2 STARTUP) CORNERSTONES TVAN TO ORR ROP PLATFORM RESTART OVERSIGHT PANEL MEETINGS PIPING LARGE AND CABLE SMALL BORE INSTALLATION SUPPORTS MAINTENANCE AMPACITY LTTIP GL 89-10 RULE NRC INSPECTIONS LARGE AND EQ FUSES ELECTRICAL RP EP TRIENNIAL SMALL BORE ELECTRICAL CONDUIT, FIRE SUPPORTS SPLICES HVAC INSPECTION SEISMIC SEISMIC CABLE II / I INSTALLATION APP R PROBLEM IDENTIFICATION & RESOLUTION GE START IN START VESSEL GE UNDER FUEL CONTROL ROD WORK VESSEL WORK & LOAD TORUS BLADE RPV FILL 6/10/05 CRD EXCHANGE NEW FILL REPLACEMENT 100%

4/05 FUEL RPV 2/20/05 POWER RECEIPT ILRT HYDRO BRKR CLOSE U1 RESTART MILESTONES ENGINEERING ISSUE RB / DW / GE PREPs GATES OUT IVVI START 7/08/05 COMPLETE CB / TB /EPU MODE 2 DCN S 5/24/05 PREPS FOR STARTUP COMPLETE 3/04 GE IN FUEL LOAD VESSEL WORK DW MECH WORK MODIFIED ECCS COMPLETE CONDENSER COMPLETE LOGIC INTEGRATION VAC TESTING ESTABLISHED LPRM & SRM DRY TUBE REPLACEMENT Joe McCarthy 18

Regulatory Status

• Unit 1 License Amendments

- 21 amendments identified

- 16 submitted to date

- 2 submittals pending NRC issuance of Topical Report SERs

- 5 approved by NRC

- 6 on hold pending resolution of Method 3 instrument setpoint methodology

• Relief Requests

- 5 relief requests submitted and approved by NRC

- Risk informed ISI to be submitted for post-restart implementation Joe McCarthy 19

Regulatory Status

• Other Unit 1 Submittals

- Regulatory Framework Submitted December 2002 Approved August 2003

- 82 programmatic and completion submittals identified 29 submitted to date 4 approved by NRR 17 closed by Inspection Report Quarterly status letter being used to notify NRC upon the completion of Bulletins, Generic Letters, TMI Action Plan Items, and Nuclear Performance Plan Special Programs

• Regulatory Challenges

- Applicability of existing BFN Appendix R/Fire Protection SERs to Unit 1 Joe McCarthy 20

Nuclear Assurance

• Focus Areas

- Areas with noted improvement and reduced Nuclear Assurance attention Welding, material control, coatings, piping/pipe supports, and Fire Protection

- Continued Nuclear Assurance attention Control of work, Mechanical and Electrical installation, testing, and system return to service Raul Baron 21

Conclusion Brian OGrady 22