ML062570002

07/25/2006 Meeting Slides Tennessee Valley Authority, Browns Ferry, Units 2 and 3 Status

ML062570002
Person / Time
Site:	Browns Ferry
Issue date:	07/25/2006
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
References
Download: ML062570002 (19)

Text

TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT UNITS 2 AND 3 STATUS Atlanta, GA July 25, 2006

Introduction

• Welcome to the status meeting for Browns Ferry Units 2 and 3

• Purpose

- Review the site status

- Discuss upcoming activities and strategy

- Solicit feedback Bill Crouch 2

Agenda

• Introduction B. Crouch

• Performance Indicators B. Aukland

• Plant Performance T. Elms

• Unit 3 Cycle 12 Outage Performance B. Aukland

• Unit 2 Cycle 14 Outage Plans B. Aukland

• Performance Improvements B. OGrady

• Three Unit Readiness B. OGrady

• Open Discussion Bill Crouch 3

Performance Indicators Browns Ferry 2 - Current Performance Summary Data through June 2006 Bruce Aukland 4

Performance Indicators Browns Ferry 3 - Current Performance Summary Data through June 2006 Bruce Aukland 5

Performance Indicators INPO Index - Old Criteria Pe rce nt 1st Qtr - CY 2006 100 80 Go od 60 40 INPO Index Top Decile Entry = 100 Top Quartile Entry = 99.81 Median = 97.17 Average = 92.42 20 0

BFN BFN 2 3 HISTORICAL INPO INDEX Browns Ferry Units 2 and 3 120 100 80 60 40 20 0

1990.03 1990.09 1991.03 1991.09 1992.03 1992.09 1993.03 1993.09 1994.03 1994.09 1995.03 1995.09 1996.03 1996.09 1997.03 1997.09 1998.03 1998.09 1999.03 1999.09 2000.03 2000.09 2001.03 2001.09 2002.03 2002.09 2003.03 2003.09 2004.03 2004.09 2005.03 2005.09 2006.03 U3 Index Value Index Best Quartile Index Median Index Worst Quartile U2 Index Value Bruce Aukland 6

Plant Performance

• Unit 2 Cycle 14

- Currently operating at 100%

- Online for 60 days

• Unit 3 Cycle 13

- Currently operating at 100%

- Online for 124 days Tony Elms 7

Plant Performance Power History Curve - Unit 2 Generation September 2005 through July 2006 4000 3500 Planned Planned Power 3000 Planned power reduction power reduction for 2500 shutdown to feedwater pump MWt 2000 for CRD exercise reduction for repair main 1500 test with Scram feedwater maintenance steam relief 1000 time testing and heater repair valve pilots 500 maintenance 0

09/01/05 09/15/05 09/29/05 10/13/05 10/27/05 11/10/05 11/24/05 12/08/05 12/22/05 01/05/06 01/19/06 02/02/06 02/16/06 03/02/06 03/16/06 03/30/06 04/13/06 04/27/06 05/11/06 05/25/06 06/08/06 06/22/06 07/06/06 Tony Elms 8

Plant Performance Power History Curve - Unit 3 Generation September 2005 through July 2006 4000 3500 3000 Planned pow er Reactor Shutdow n reduction for scram due 2500 plant for Planned MWt maintenance to load recirc pump shutdow n 2000 rejection seal for Scram due to low from 1500 replacement refueling condenser vacuum sw itchyard 1000 outage resulting f rom a problem 500 maintenance activity.

09/01/05 09/16/05 10/01/05 10/16/05 10/31/05 11/15/05 11/30/05 12/15/05 12/30/05 01/14/06 01/29/06 02/13/06 02/28/06 03/15/06 03/30/06 04/14/06 04/29/06 05/14/06 05/29/06 06/13/06 06/28/06 07/13/06 Tony Elms 9

Unit 3 Cycle 12 Outage Performance

• Duration of 22 days 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />

• Outage Performance Milestones

- 0 Recordable Accidents

- 0 Lost Time Accidents

- 0 Human Performance Events Planned Actual

- Preventive Maintenance Work Orders 822 823

- Surveillance Requirements/Instructions 649 689

- Maintenance/Modifications Work Orders 909 1322

- Work Order Backlog 836 833

- Equipment Intolerance Items All All Bruce Aukland 10

Unit 2 Cycle 14 Outage Plans

• Extended Power Uprate Implementation Outage

- Considerable modifications

- Maintaining / improving operational margin

• Condensate System

- Replace condensate pump impellers and motors

- Condensate demineralizer 10th vessel addition

- Replace condensate booster pump and motors

- Condensate demineralizer control panel digital upgrade

• Feedwater System

- Replace reactor feedwater pumps

- Modify feedwater pump turbines

- Modify feedwater heaters

• Main Steam System

- Modify high pressure turbine, cross around relief valves, and steam seal piping

- Modify main steam isolation valves internals and actuators

- Replace moisture separator internals Bruce Aukland 11

Performance Improvements

• The Hardspot

- Flat / declining performance in some areas

- Significant challenges Unit 1 restart activities Extended power uprate on Unit 2

• The Performance Improvement Plan

- Achieve measurable results in 90 days

- 7 key focus areas Brian OGrady 12

Performance Improvements

• Program Elements

- Safety/human performance

- Reactivity management

- Training

- Corrective action/self-assessment programs

- Chemistry

- Unit 1 restart readiness

- Equipment reliability

• Management Sponsors

• Plans Developed and Monitored

• Communications with TVA Staff on Program Brian OGrady 13

Performance Improvements

• Improving Results

- Personnel error rate

- Days between human performance events

- Human performance index

- Management observations of training

- Problem evaluation report initiation rate

- Level D problem evaluation reports - low threshold

- Intolerance to equipment deficiencies index

- Building inleakage

- Reactor coolant system chemistry

- Unit 1 readiness Brian OGrady 14

Performance Improvements

• Phase 2

- Teamwork

- Work management

- Extended Power Uprate

- ALARA

• Continuing To Work

- Equipment reliability

- Reactivity management

- Unit 1 restart / 3-unit operation Brian OGrady 15

Three Unit Readiness

• Unit 1 Recovery Transition from Bulk Work / Construction to System Completion Milestone

• Presently 18 Systems Have Completed System Pre-Operability Checklist Phase I Process

- Ready for restart testing

- Manager assigned to each system

- System pre-operability checklist board meetings

• Presently 14 Systems Have Completed System Pre-Operability Checklist Phase II Process

- Maintenance / Surveillance Requirements maintained

- Plant Ownership

• Nuclear Performance Program NRC Inspections Complete for Unit 1

- 16 of 30 completed

• Integration of Plant Organizations During Recovery Activities

- Engineering

- Maintenance

- Operations

• Department Readiness

- Self Assessments Initial Assessments complete Eight follow-up assessments planned

- Staffing for three unit operation Brian OGrady 16

Three Unit Readiness Brian OGrady 17

Three Unit Readiness Brian OGrady 18

Open Discussion 19