ML20135F007

Submits Summary of 970226 Meeting W/Util Re Operation Performance of Plant.List of Attendees & Matl Used in Presentation Encl

ML20135F007
Person / Time
Site:	Sequoyah
Issue date:	02/28/1997
From:	Lesser M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:	Kingsley O TENNESSEE VALLEY AUTHORITY
References
NUDOCS 9703110116
Download: ML20135F007 (59)

Text

{{#Wiki_filter:) l l February 28, 1997 Tennessee Valley Authority ATTN: Mr. Oliver D. Kingsley, Jr. President, TVA Nuclear and Chief Nuclear Officer 6A Lookout Place 1101 Market Street Chattanooga. TN 37402 2801

SUBJECT:

MEETING

SUMMARY

SEQUOYAH NUCLEAR PLANT, DOCKET NOS. 50 327 AND 50 328

Dear Mr. Kingsley:

On February 26, 1997, the NRC staff met at the Sequoyah Nuclear Plant Training Center with representatives of the Tennessee Valley Authority's Sequoyah Nuclear Plant staff. The aurpose of this meeting was to discuss operational performance of the Sequoyal units. is a list of the individuals who attended the meeting, and Enclosure 2 contains a copy of the material supplied by the licensee at the meeting. In accordance with Section 2.790 of the NRC's " Rules of Practice." Part 2. Title 10 Code of Federal Regulations, a coay of this letter and its enclosures will be placed in the NRC Public Document loom. Should you have any questions concerning this letter, please contact us. Sincerely, (Original signed by P. K. Van Doorn) Mark S. Lesser, Chief Reactor Projects Branch 6 i Division of Reactor Projects Docket Nos. 50 327, 50 328 License Nos. DPR 77, DPR 79

Enclosures:

1. List of Attendees

2. Handout Material

/ cc w/encls: (See page 2) ) yH,

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1 l i WA 2 cc w/encls: Mr. O. J. Zeringue Mr. J. T. Herron Senior Vice President Plant Manager Nuclear Operations Sequoyah Nuclear Plant Tennessee Valley Authority Tennessee Valley Authority 6A Lookout Place P. O. Box 2000 1101 Market Street Soddy Daisy TN 37379 Chattanooga, TN 37402-2801 Mr. ' Michael H. Mobley, Director i Mr. J. A. Bailey Division of Radiological Health Vice President 3rd Floor, L and C Annex Engineering and Technical Services 401 Church Street 6A Lookout Place Nashville, TN 37243 1532 1101 Market Street Chattanooga, TN 37402 2801 County Executive Hamilton County Courthouse Mr. R. J. Adney Chattanooga, TN 37402-2801 Site Vice President Sequoyah Nuclear Plant Distribution w/encls: (See page 3) Tennessee Valley Authority P. O. Box 2000 i Soddy-Daisy, TN 37379 General Counsel Tennessee Valley Authority ET 10H 400 West Summit Hill Drive Knoxville, TN 37902 Mr. R. R. Baron General Manager Nuclear Assurance & Licensing 4J Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. P. Salas, Manager Licensing and Industry Affairs Tennessee Valley Authority 4J Blue Ridge 1101 Market Street Chattanooga, TN 37402 2801 Mr. R. H. Shell, Manager Licensing and Industry Affairs Sequoyah Nuclear Plant i Tennessee Valley Authority P. O. Box 2000 Soddy Daisy TN 37379 i

1 WA 3 i ( i Distributjpn w/encis: J. R. Johnson, RII l M. S. Lesser, RII S. E. Sparks, RII l F. J. Hebdon, NRR i R. W. Hernan, NRR H. L. Whitener, RII C. F. Smith, RII i D. H. Thompson, RII J. H. Moorman, RII E. D. Testa, RII i PUBLIC NRC Resident Inspector U. S. Nuclear Regulatory Commission 2600 Igou Ferry i Soddy Daisy, TN 37379 NRC Resident Inspector U. S. Nuclear Regulatory Commission 1260 Wuclear Plant Road Spring City, TN 37381 Orrter popipt; g oppfpt; SIGNATURE ? N M NAME $$ paris:yyg lrVanDoorn DATE 02 / 7 3 / 97 02 / # / 97 02 / / 97 02 / / 97 02 / / 97 02 / ! 97 COPY? YES NO YES A YES NO YES ND YES NO YES N0 orriur stwnu coer oocontu vm easke. sum 226. sun I 1 i )

UST OF ATTENDEES RRC L. A. Reyes, Regional Administrator, Region II (RII) J. R. Johnson, Director, Division of Reactor Projects (DRP), RII l W. E.-Holland, Acting Branch Chief, Maintenance Branch, Division of Reactor Safety RII M. C. Shannon, Senior Resident Inspector, DRP, RII D. A. Seymour, Resident Inspector, DRP, RII S. E. Sparks, Project Engineer, DRP, RII ] R. W. Hernan, Senior Licensing Project Manager, Office of Nuclear Reactor Regulation Licensee Attendees:

0. D. Kingsley, President, TVA Nuclear and Chief Nuclear Officer

0. J. Zeringue, Senior Vice President, Nuclear Operations J. A. Bailey, Vice President, Engineering and Technical Services R. Baron, General Manager, Nuclear Assurance and Licensing R. J. Adney, Site Vice President J. T. Herron, Plant Manager, Sequoyah W. Lagergren, Operations Manager R. Rausch, Maintenance and Modifications Manager T. A. Flip]o, Site Support Manager M. Burzynsci, Engineering and Materials Manager M. Skarzinski, Technical Support Manager L. Bryant, Outage Manager M. Fetch, Nuclear Assessment and Licensing Manager

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Sequoyah Nuclear Plant TVA/NRC Meeting Agenda l February 26,1997 I. Introduction IL J. Adney II. Sequoyah Performance J. T. Herron - INPO PerformanceIndicatorInder [ III. Key Focus Arcas All - CorrectiveAction - SelfAssessments l - PersonnelPerforrnance - PlantMaterialCondition IV. Outage Preparations L. S. Bryant l V. QA Perspective M. J. Fecht VI. Summary R. J. Adney m. m-m ,__m_m__- - m -,,-r- .. -,-i

Secuoyah Nuc: ear P: ant Introduction 1

4 i i I l Secuoya:11N,uc: ear Plant i l 5 Sequoyah Performance L i i t. 2 i

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- e INPO INDEX SEQUOYAII UNIT 1 i min max weight tvaluei - index Product criteria Unit Capability Factor 40 90 0.16 N 82.49 t 84.980 13.6 82.490 Unplanned Capability loss Factor 15 0 0.12 L 8.05 2 ^ 46333 5.6 8.050 Unplanned Automatic Scrams 5 1 0.08 JI.375 A 90.620 7.2 1375 11igh Pressure Injection 0.03 0.01 0.1 2 0.006 y 100.000 10.0 0.010 Auxiliary Feedwater 0.04 0.01 0.1 0.0087 100.000 10.0 0.010 Emergency AC System Availability 0.05 0.01 0.1 + 0.011u - 97.500 9.8 0.011 nennal Performance 98 100 0.06 99.711; 85.529 5.1 99.711 Fuel Reliability 0.01 0.0005 0.08 J0.000r 100.000 8.0 0.001 Chemistry Index 2.00 1.10 0.07 l.076:. 100.000 7.0 1.100 Collective Radiation Exposure 400 100 0.08

155.876" 81375 6.5 155.876 Industrial Safety Accident Rate 2

03 0.05 0.329E 98323 4.9 0329 l Weighted Index January 1997 = 87.7 SEQUOYAII UNIT 2 min mrx weight -. v alue -: index Product criteria Unit Capability Factor 40 90 0.16 3843_8 N 88.760 14.2 84380 Unplanned Capability loss Factor 15 0 0.12 1838* 44.133 53 8380 t Unplanned Automatic Scrams 5 1 0.08 .1.377c 90.572 7.2 1377 liigh Pressure Injection 0.03 0.01 0.1 0.008-" 100.000 10.0 0.010 Auxiliary Feedwater 0.04 0.01 0.1 s0.0297 - 37 667 3.8 0.029 I Emergency AC System Availability 0.05 0.01 0.1 0.0117 - 97.500 9.8 0.011 nermal Performance 98 100 0.06

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86.659 5.2 99.733 Fuel Reliability 0.01 0.0005 0.08 ' 0.0000 100.000 8.0 0.001 Chemistry Index 2.00 1.10 0.07 'C1.137i 95.859 6.7 1.137 Collective Radiation Exposure 400 100 0.08 ^ 155.876 L 81375 6.5 155.876 Industrial Safety Accident Rate 2 03 0.05 s0.3294 98J23 4.9 0329 Weighted Index January 1997 = 81.6 m m . m

Y Sequoya:1 Xuc~ ear Plant Key Focus Areas Corrective Action Self Assessments Personnel Performance Plant Material Condition 6 3 6

Sequoya a Nuc. ear Plant Coirective Action Management ownership / accountability is improving QA rejection rate decreasing (25% down to 8%) concurrent with lower threshold Meeting with operators, maintenance personnel, RadCon/ Chemistry techs, and Engineering personnel to emphasize need to write PERs, clearly describe problem, and preserve evidence Root cause quality has been improving as observed by: - Senior management reviews - Line management reviews - QA rejection rate decreasing on 100% review - Basic quality of completed evaluations RCP motor vibration RCP seal leakage issues Motor-driven auxiliary feedwater pump dark oil Repetitive gasket leaks on level indicating instruments 4 i f ....m. -... - ~ - -,.

q t Sec uoya l Nuc.. ear Plant Se f Assessments l Operations INPO-like assessments i - Ongoing: Scope (Conduct of Ops, status control, procedures, facilities, knowledge) Observation Program (same as BFN and WBN) - Each supervisor does three per quarter in the plant and in training - 17 different areas (e.g., AUO Watchstanding, Radeon/ Safety, Procedures) ~ - Quarterly multi-site: j Use SROs from other TVA nuclear sites - Ongoing and quarterly feed Site Trend Analysis Committee (STAC) process i Results - Procedure adherence (see graph) i - Status control (see graph) - Other focus areas (e.g., ARPs, Logkeeping, RO Formality, AUO t Watchstanding Practices, Pre-Job Briefs) Corrective Action Program - Self-identification j s

Sec uoya:a N uc. ear Pia 11: Opera ~ ions Self-Assessmen: Operations Procedure Adherence Events m, l'}, E Consequential 5 O Near-Miss au5$ O Precursor 8s4 EW wau

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Secuoyan Xuc. ear P an: Opera ~: ions Se f-Assessmen: Site Status Control Events 6 m Consequential 5 > 31 O Near-Miss r = ~ c.J Dr O Precursor w 4 ~ m m ~ 5 3 w wi ~ C ?i... s - n j ,[- j ; 2 g!? p< 5 ^ # f1 ^f-f,z- @9 s 4e in 0 0 Sep-96 Oct-96 Nov-96 Dec-96 Jan-97 Feb-97

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Sequoya1 Nuc ear Plant Se f Assessments Maintenance P Assessment Process: Modeled after INPO performance objectives - Performed quarterly (feeds the STAC process) Participants - Assessment team mix (management and craft) 4 - Assessment team trained on Observation Techniques Results - Identified site weakness in EMS data - Identified training weakness and helped initiate Scenario Training - Identified weakness in Supervisor Observation and initiated Maintenance Peer Evaluation Program A Program improvements - Identified need to improve Maintenance ownership (followup) - Include members from QA, Operations, and Engineering in assessments 6

Sec uoyal Nuc.. ear P ant Se f Assessments Enginbering Assessment Process: - Modeled after INPO performance objectives, performed quarterly (feeds STAC process) - Two-year PER data reviewed annually j Participants [ - Personnel trained in Root Cause Analysis Results - Past reviews Electrical wiring diagram errors [ ] Excessive field changes for modification packages Modification closc-out completeness Return-to-service issues 7

Sequoyah Nuc. ear Plant Se f Assessments Engine'ering - Current reviews Completeness of revising affected documents Vendor interface difficulties Operations training interface - Future reviews In-depth root causes identifying human performance issues Facilitates analysis for areas ofimprovement Trends - FDCN design error rate better than established goal - PER self-identification is generally on target - Personnel error rate for PERs has increased due to heightened root cause analysis 8

i Sequoya1 Nuc. ear P ant SeiAssessments Rac con /C::lemistry Assessment Process: - INPO-like assessments, annual - STAC assessments, quarterly - Internal assessments Participants - Line personnel and technical staff based upon independence and technical needs - INPO-like assessments include multi-site personnel Results - Identified attention to detail and procedural problems, areas for improvement, efficiency issues l 1 Program improvements - Improvements in internal QA/QC program, chemical and materials i procurement, secondary chemistry program, records management, radwaste shipping documents, RWP program 9 ~-e ,m- .~w ,v-, -w,w-e v-- --inv-sw e- <s.or~r.-e-- e-- r-

Sec uoyaa Nuc.. ear Plant Personne. Performance Personnel performance - Personnel error Thresholds lowered Department self-identification improving - Ongoing actions for additional improvements STAR and QV&V training Use of a STAR simulator Front-line supenrisors, licensed and non-licensed operators and craft visits to SALP 1 sites Required management observations l INPO Operations assist visit - Challenges / problems l Attention to detail Peer challenges Procedural compliance Management follow-through on corrective actions i 10

Sequoyaa Nuclear Plant Plant Material Condition ?, Sequoyah has a plan to improve material condition Sequoyah is working that plan Completed improvements t - Replaced Unit 2 condenser with modular titanium - Unit 2 integrated computer system installation to replace obsolete P250 - Ongoing Arrow-Hart replacements - Steam generator chemical cleaning - both units - Erosion / Corrosion Program implementation - Unit 1 exciter replacement - Feedwater nozzle replacements 11 u m .1

Sec uoyan Nuc. ear Plant Plant Materia. Concition Completed improvements (cont.) - Electrical penetration replacements - MSIV upgrades - both units - MSCV removal-both units - Capacitor bank installation for improved offsite power source reliability - BOP chemistry improvement mods - Switchyard improvements - Lower compartment cooler replacements - Pro-active reactor head funnel welding - Vital inverter overhauls - Pressurizer safety valve condition improvements - 250-volt station battery replacement - No. 3 HDT LCV improved reliability 12

-l l Sequoyaa 5'uc. ear P:. ant q 4P P ant Materia. Concition l l Completed improvements (cont.) - CCW pump trip circuit mods - Improved diesel generator availability through revamped scheduling of routine work - Feedwater heater level tree reiiability improvements - Control air line reliability improvements through upgrades to flexible stain less steel lines on critical end devices i - Main transformer sudden pressure relay to. eliminate spurious actuations - Safety-related chiller refurbishments - Stator cooling water pressure and temperature sensor logic changes to I minimize spurious actuations - MFWP loss of oil pump trip circuit mods to eliminate spurious actuations 13 m

Sequoyaa Nuc. ear P; ant P ant Materia Concition Completed improvements (cont.) - Upgrades of MFWP control circuit components to eliminate premature failures - Replaced rod step demand counters with more reliable design (digital) - Revised No. 3 HDT runback control circuit to minimize spurious actuations - Improved RCS level monitoring capability for reduced inventory conditions to minimize shutdown risk [ j ~ 14 . m m...

Sequoyaa Nuc. ear Plant Plant Materia Condition Rolling three-year Capital Projects (current Business Plan) - Fiscal Year '97 @ $63M - Fiscal Year '98 @ $37M - Fiscal Year '99 @ $26M Rolling three-year O&M Projects (current Business Plan) - Fiscal Year '97 @. $6.5M - Fiscal Year '98 @ $7.7M - Fiscal Year '99 @ $6M 15

Sec uoyaa Nuc.. ear P. ant Plant Materia Concition Future projects (see attached Project Lists - The Project Lists are subject to ch: ;ge based on overall site priorities) 16

Sequoyaa Nuc_ ear P;. ant P. ant Materia Concition Reliability Study - 23 plant reliability issues identified - 4 issues resolved - 2 issues complete on Unit 2 and scheduled for UIC8 refueling outage (RFO) 16 issues currently in progress for UIC9/U2C9 RFOs 1 issue scheduled for completion by U1C10/U2C10 RFOs Additional in-depth study of reliability significant systems 16 key BOP systems identified - Includes system walkdown and review of system unreliabilities - For Unit 2, have identified corrective / preventive maintenance and design improvements - Unit 1 in progress 17

Sequoyal Nuc.. ear P:. ant P;. ant Materia Concition SQN BOP comparison with industry - SQN BOP lessons learned from WBN ~ WBN BOP design changes since startup have been reviewed 16 determined to be applicable and reliability related I lacked implementation benefit 10 have been implemented I design change in progress,4 planned 18

Sequoyal Nuc. ear P: ant P. ant Materia Concition SQN BOP comparison with industry (cont.) 1993 Stone & Webster industry expert identified several differences Majority of differences due to original SQN design focus on efficiency Philosophy introduced complexity and reduced reliability No significaht changes were recommended One recommendation complete; one planned - Bechtel Corporation recently contracted to perform supplementary review Comparison will be to standard Bechtel BOP design Review is in progress ~ 19

Sequoyan Nuc.. ear P:. ant P: ant Material Concition ?. Steam dump system status - Evaluated condition by use ofindustry and corporate personnel - Root cause determined - Modifications planned for UIC8 and U2C8 RFOs - Interim monitoring ac; ions in place Arrow-Hart replacement status - Original population of critical components - 468 - Expedited resolution and work is on schedule - 284 complete - Remaining population - 184; scheduled for completion by end of U2C8 20

i Sequoya duc.. ear P:. ant P ant Materia Concition RHR pump discharge header gas venting condition - Voluntary LER provided root cause - Industry experts consulted - No safety impact - Partial mod completed on Unit I during November planned shutdown - Modifications scheduled for cycle 8 RFOs l Freeze Protection Program - To be placed in Al status Maintenance Rule - Compensatory measures - Engineering issued implementation schedule 21

Sequoyaa Nuc. ear P; ant P; ant Materia Concition System health - Integrates Operations, Maintenance, and Engineering - Enables aggregate effect review of open items - Equipment failure trending - Provides focus for improving system performance - Aids in work prioritization - Incorporates Maintenance Rule 22

Sec uoyaa Nuc.. ear P. ant Plant Materia Condition r Evaluating effectiveness of previous corrective actions (CA) Senior manager owns review Review is a site-wide effort - Master Issues List (approximately 500 items) - Open WRs/WOs, & PERs (approximately 5500 items) - RCM/PM basis approach (EPRI review; 3 systems) - Plant walkdowns (three 7-man teams with independent QA verification) - Closed documents PERs (approximately 8500 PERs, back to 1989) WOs (3 samplings; approximately 60 items per sample) Operating Experience Review (approximately 160 items) 23 2 =

Sequoyal Nuc. ear P~. ant Plant Materia Conc.ition ? Following December '95 breaker failure, management initiated evaluation of switchyard TVA-wide reorganization focused on switchyard ownership, and created separate organization for TVA nuclear switchyards Recent TVA accomplishments in switchyard - Replaced 500kV PCB 5054 and 5064 - Completed planned 500kV switchyard outage - Completed internal inspections and routine PMs on 500/161kV intertie transformer bank - Replaced air compressors on 161 kV PCBs 994,984, and 924 - Conducted Engineering / Design / Maintenance evaluations - Independent contractor evaluation 24

Sequoya a Nuc_ ear P. ant P ant Materia Concition Ongoing switchyard activities i - Replacement of 500 kV PCB 5048 and 161 kV PCB 974 scheduled for completion 3/97 - Systematic replacement of five high maintenance air compressors t t 25

h Sec uoya duc. ear Plant P. ant Materia. Condition l Planned switchyard activities 1 - Upgrade six oil-filled pts with SF-6 pts in 500kV yard - Upgrade CCVT with SF-6 PT in 500kV yard - Internal inspections and regask2 ting of Unit I main bank transformers - Add two pressure switches to LVBC system to improve Unit 1 transformer reliability by preventing spurious trips - Replace obsolete contactors on cooling fans and oil pumps on Unit I transformers - Routine maintenance and test activities within periodicity by end of UlC8 Results - Reliable switchyard - Strong diverse offsite power sources I Two hydro Two fossil One nuclear 2s

Secuoya:1 Nuclear P: ant t i Outage Preparations i i i 27

Sec uoyan Nuc. ear P ant Outage Preaarations Power reduction March 21, breaker close May 7 Major outage scope - 36 modifications 1,056 work orders (Mods and Maintenance) - 927 preventive maintenance orders - 460 surveillance activities - Replace 5 electrical penetrations - Replace 2 LP turbine rotors - Replace main condenser - Replace main feedwater nozzles on loop 3 & 4 steam generators 28

4 I l Sec uoyaa Nuc.. ear P ant Outage Preaarations ? Other outage scope i l 1 - Selected ASCO SOVs 1 j - Replace four S/G PORV controllers (Operations workaround) I - Refurbish 24 6.9 kV breakers - Install S&K flow rotometers on RCP seal return j - Modify main steam dump drain system i - Integrated Computer System modification - Install No. 2 feedwater heater bypass sparger (in U1C8 vs UIC9) - Replace 70 Arrow-Hart contactors i - Rod control maintenance diagnostic i l 29

SecuoyalNuc.. ear P ant Outage Preparations Other outage items - Outage safety plan developed - Defense-in-depth expanded - Independent safety review completed - Milestone managers utilized - Operations Shift Managers (outage) utilized - High impact teams utilized- - No hot midloop UIC8 30

Sequoyan Nuc.. ear Plant Outage Preparations Goals - Sequoyah Unit 1 Cycle 8 - Run Unit 2 safely and reliably - No Licensee Event Reports or regulatory violations - No more than 1 TVA recordable case injuries - No lost time accidents - Less than 225 total REM exposure and no high rad area violations - Less than 0.9 personnel contaminations per 1000 RWP hours - Outage-related Unit I temporary alterations cleared - Temporary leak repairs cleared - Outage control room deficiencies cleared - Total completion of baseline outage scope - Strong Unit 1 performance after startup 31

t Sequoya:a Nue: ear P: ant t QA Perspective i b 32 r

MA Sec uoyaa Nuc.. ear Plant QA Pers ective Recent QA initiatives - Degraded / nonconforming condition assessment (complete) - Equipment failure trending assessment (complete) - Freeze protection (complete) - M&TE (complete) - Vertical slice audit (ongoing) - Fire protection assessment (complete) - Corrective Action Program 100% review (ongoing) - QA escalations The top five focus areas: - Problem res.olution (Corrective Action Program) - Line self-assessiiients - Plant material condition - Personnel performance - Trending 33

a L 5 Secuoyah Nuclear Plant 1 i Summary i h B. 9 l i 34 i

SEQUOYAII CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 CM E R E bN O O E PROJECT TITLE N OPERATOR WORK AROUNDS UPGRADE TURBINE STEAM SEAL UNIT I UIC9 70 % 30 % UPGRADE TURDINE STEAM SEAL UNIT 2 U2C8 35 % 65 % FLOW MODIFIER l-FM-142 A TERRY TURDINE CNTRL U1C8 Apr-97 100 % FLOW MODIFIER 2-FM-142A 'mRRY TURBINE CNTRL U2C8 30 % 70 % 10 % REPLACE ICE CONDENSER GLYCOL CIELLERS POST UIC7 ARROW-ilARTISSUES Nov-96 100 % IIEAT TRACE RECORDERS FOR FREEZE PROTECTION Jan-97 100*/. U1C8 ARROW-ilART ISSUES U1C8 Apr-97 100 % U2C8 ARROW-ilARTISSUES U2C8 10 % 90*/. CVCS VENTING UIC9 70 % 30 % CVCS VENTING U2C9 15 % 85 % INSTALL NEW MFP MINIFLOW VALVE NEW ORFICE AND NEW CONTROLLERS UIC9 55 % 45% U2C8 30% 70 % INSTALL NEW MFP MINIFLOW VALVE NEW ORFICE AND NEW CONTROLLERS RllR SYSTEM DISC 11ARGE PIPING VENT UIC8 Apr-97 100 % RIIR SYSTEM DISCilARGE PIPING VENT U2C8 55 % 45% Nov-96 100 % POST U2C7 ARROW-IIART ISSUES 35 % 3I)% REPL ARROWIIART CONTACTORS REPLACEMENT OF OBSOLETE EOUIPMENT MAIN TURBINE SUPERVISORY INSTR UI UIC10 10 % MAIN TURBINE SUPERVISORY INSTR 'J2 U2C] 10 % 20 % REPLACE AUX AIR COMPRESSORS 100 % GLYCOL CillLLERS INSTRUMENTATION Page 1 of 8

SEQUOYAII CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 U AM E E R S S S PROJECT TITLE M' s s POWER SUPPLY l-PX-3-142 U1C8 Apr-97 100 % REPLACE CRD COOLER CONIROLLEP5 UI Jun-97 100 % REPLACE CRD COOLER CONTROLLERS U2 Jul-97 100 % REPLACE DUNilAM BUS 11 TIMER TMR-103 Jun-97 100 % REPLACE S&K FLOW INDICATING XMITERS UI UlC8 Apr-97 100 % REPLACE S&K FLOW INDICATING XMITTERS U2 U2C8 50 % 50 % AUXILIARY BOILER RECORDER AND CONTROLS UPGRADE 100 % OBSOLETE RECORDERS U2C8 30 % 70 % OBSOLETE RECORDERS UIC8 May-97 100 % OBSOLETE RECORDERS (UlC9, U2C9, UIC10) 40 % 30 % REPLACE MICRO R 100 RECORDERS 60 % 40 % REPLACE MICRO R 100 RECORDERS 60 % 40 % CilEMISTRY & RAD PROTECTION UPGRADES RESOLVE PAS SYS PROBLEMS Jul-97 100 % RESOLVE PAS SYS PROBLEMS Jul-97 100 % INSTALL CABLE AND CONDUIT TO POWER PLASMA SPECTROMETER 100 % SECONDARY SAMPLING AND INSTRUNENT Feb-97 100 % SECONDARY SAMPLING AND INSTRUMENT 95 % 5% INSTALL DATA ACQUISITION SYSTEM 100 % REPLACE ERCW CIILORINATION SYS 95 % 5% REPLACE RCW CIILORINATION 9YSTEM 100 % ' FIRE PROTECTION ISSUES Page 2 of H

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SEQUOYAll CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 h h h U "E PROJECT TITLE g $h ~ NN o f t CSST A OIL RETAINING CURB Jan-97 100 % UPGRADE FIRE PROTECTION SYS 95 % 5% FIRE DETECTION IN PASF Jul-97 100 % VARIOUS BUILDING UPGRADES REACTOR BLDG ROOF UPGRADE 50 % 50 % SOLAR BLDG ELEVATOR INSTALLATION Jul-97 100 % ALPINE VILLAGE UPGRADE Jul-97 100 % SOLAR BUILDING UPGRADE Jul-97 100 % PLANT OFFICE BUILDING UPGRADE Jul-97 100 % ELECTRICAL PENETRATION CIIANGEOUTS ELECTRICAL PENETRATIONS UIC8 May-97 100 % ELECTRICAL PENETRATIONS U2C8 U2C8 55 % 45 % REPLACE ELECTRICAL PENETRATIONS (UIC9 & UIC10) 20 % 50 % STEAM GENERATOR PRESERVATION RLTUBE GLAND STEAM CONDENSER UIC8 Apr-97 100 % CONDENSER RETUBE PROJECT U1C8 Jun-97 100*4 CONDENSER RETUBE PROJECT U2C7 Dec-96 100*/. INSTALL S/G Nf 6 MONITOR UIC9 70 % 30 % INSTALL S/G N16 MONITOR U2C9 20 % 80 % Page 3 of 8

SEQUOYAII CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 AM E $0 D D PROJECT TITLE b Wh D D D TURBINE GENERATOR UPGRADES 25 % 20 % TURBINE GENERATOR LONG RANGE UPGRADES UPGRADF1 REBUILD OF PLANT EOUIPMENT REBUILD J-A ERCW PUMP & MOTOR Feb-97 100 % REPLACE SCSA COMPRESSORS Jul-97 100 % REPLACE WASTE GAS ANALYZER Jul-97 100 % 60 % 40 % REPLACE IB CONTAINMENT SPRAY IIEAT EXCilANGER OUTAGEIMPROVEMENT LOWER CONTAINMENT COOLING UIC10 10 % 20 % LOWER CONTAINMENT COOLING U2C10 10 % CRDM DUCT REPLACEMENT AT RPV IIEAD U1C8 May-97 100 % PRESSURIZER SAFETY VALVES UIC9 35 % 60*A 5% PRESSURIZER SAFETY VALVES U2C8 35 % 50 % 15 % ICE COND FLOOR MODIFICATIONS ICE COND FLOOR MODIFICATION UIC8 15 % 10 % 15 % ICE COND FLOOR MODIFICATION U2C9 3% 22 % 25 % OTIIER PROJECTS TO IMPROVE RELIABILITY Page 4 of 8

SEQUOYAII CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 U CM E E R $f E E E I i PROJECT TITLE NW f STEAM DUMP DRAIN VALVES & MONITORING SYSTEM UNIT I UIC8 Apr-97 100 % STEAM DUMP DRAIN VALVES & MONITORING SYSTEM UNIT 2 U2C8 Dec-97 50 % 50 % REDUNDANT CUNO FILTER SEAL OIL SYSTEM UlC8 Apr-97 100 % INSTALL BEARING LUBE WATER UPGRADE SYSTEM (CCW) 95 % 5% MOTOR DRIVEN AUX FEEDWATER WATER LEVEL CONTROL VALVES UIC10 30 % l STATION BATTERY BANK REPLACEMENT Dec-96 100 % f STM. GEN. FEEDWATER INTERFACE PIPING UIC8 Apr-97 100 % STM. GEN. FEEDWATER INTERFACE PIPING U2C9 100 % PMP FLOODING ISSUE Jul-97 100 % j CABLE DRIVE FOR TRANSFER SYSTEM U2C9 30% 70 % UPGRADE AIRBORNE RAD MONITORS-(CAMS) 100 % NO. 2 FEEDWATER IEATER - AUTO BYPASS TO CONDENSER UIC9 60 % 40% NO. 2 FEEDWATER IEATER - AUTO BYPASS TO CONDENSER ~ U2C8 Dec-97 60 % 40 % REPLACE RAD MONITOR 0-RE-090-122 Aug-97 100 % 480V BOARD ROOM SUPPLEMENTAL COOLING ~ 60 % 40 % 480V BOARD ROOM SUPPLEhENTAL COOLING 55 % 45 % ROD POSITICN INDICATING SYSTEM UIC9 20 % 80 % ROD POSITION INDICATING SYSTEM U2C9 20 % 80 % f YARWAY ARC VALVE REPLACEMENT UIC9 70 % 20 % i YARWAY ARC VALVE REPLACEMENT U2C9 25 % 75 % i REPLACEMENT OF TIE 125V DC DIESEL GENERATOR B ATTERIES 100 % MAIN GENERATOR VOLTAGE REGULATOR REPLACEMENT U1C9 60 % 40 % MAIN GENERATOR VOLTAGE REGULATOR REPLACEMENT U2C9 50 % 50 % SUPER SIIORT CYCLE MODIFICATION UIC8 Apr-97 100 % DIGITAL T4FW CONTROL SYSTEM UIC10 20 % 25 % DIGITAL MFW CONTROL SYSTEM U2C10 20 % Page 5 of 8

O SEQUOYAII CAPITAL PROJECTS LIST FISCAL, YEARS 1997-1999 U AM E E 5 D E E PROJECT TITLE M f MANTIOLE SUMP PUMPS 55 % 45 % CIVII/ SEISMIC ISSUES CIVIL ISSUE - LARGE BORE PIPING REVIEW Jan-97 100 % CIVIL ISSUE - UNQUALIFIED PIPING IN AUX DLDG UI 100 % Cl, alISSUE - CCS DIERMAL OP MODES UI UIC9 60 % 30 % 10 % CIVIL ISSUE-CCS THERMAL OP MODES U2 U2C8 25 % 75 % CIVIL ISSUES (BALANCE OFITEMS) 65 % 35% MINOR CAPITAL PROJECTS REPLACE CAT. 2 LTS WIDI CAT. I SYSTEM 3 100 % REPLACETEMPERARJRE SWITCIIES 100 % CONTROL BLDG LOW LEAKAGE DAMPERS 100 % REDUNDANT VAPOR EXTRACTOR - MAIN TURBINE OIL TANK UNIT I U1C9 65 % 35 % REDUNDANT. VAPOR EXTRACTOR-MAIN TURBINE OIL TANK UNIT 2 U2C9 65*/. 35 % FilGil PRESSURE ALARM FOR SAFETY INJECTION UIC10 30 % REPLACE ITS ON EGTS & CONTAINMENT AIR RETURN FANS UICIO 100 % SPENT FUEL BRIDGE CRANE ilOIST 100 % EQUALIZATION VALVES ON IIIGH PRESSURE FILTERS PDS-47-12,17-4I U1C9 50 % 50 % EQUALIZATION VALVES ON IIIGli PRESSURE FILTERS PDS-47-12,17 -t1 U2C9 30% 70 % AFWirr i A-S OIL DRAIN SAMPLE VALVE UIC8 Apr-97 100 %

1. 7 IIDT OPTIMIZATION 10 %

40 % 50 % IIEAT TRACE & INSULATE 1-RE-90-106/112 LINES Feb-97 100 % IIEAT TRACE & INSULATE 2-RE-90-106/Il2 LINES Dec-96 100 % Page 6 of 8

O SEQUOYAII CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 em a = g $N E D PROJECT TITLE b Mk i FIRE DETECTION @ AUX BLDG IIVAC ROOMS Jan-97 100 % I REPLACE LUNDELL ANNUNCIATOR UI Jul-97 100 % REPLACE LUNDELL ANNUNCIATOR U2 Jun-97 100 % REPLACE SECURITY B ACK-UP DIESEL FUEL TANK 90 % 10 % FIFril DIESEL SECURITY PROTECTION Nov-96 100 % l PURCIIASE OF TAGGED EOUIPMENT TAGGED EQUIPMENT 50 % 50 % i MANSEL LEVEL MONITOR SYSTEM 100 % I TORBO-TOC TURBINE OIL CONDITIONER 100 % D/G DATA ACQUISITION SYSTEM 100 % RCS VACUUM PUMP 100 % PLANT COMPUTER CIIANGEOUT INIEGRAWD COMPIJTER SYSTEM (ICS) UIC8 Apr-97 100 % INTEGRATED COMPlTTER SYSTEM (ICS) U2C7 Nov-96 100 % 1 ENVIRONMENTAL COMPLIANCE PCB RISK REDUCTION 30 % 30 % M AINTENANCE IMPROVEMENT CVCS VALVE RELOCATION IN ACCUMULATOR ROOM UIC10 35 % Page 7 of 8

SEQUOYAII CAPITAL PROJECTS LIST FISCAL YEARS 1997-1999 E QW E R E S S S PROJECT TITLE M D FOUR ADDITIONAL RCCA*S UIC10 20 % PERSONNEL SAFETY ADDITION OF PLANT ACCESS PLATTORMS FOR MSVVS U2C10 20 % Page 8 of 8

SEQUOYAH O&M PROJECTS LIST FISCAL YEARS 1997-1999 oz ~ o, E E$ b b' b PROJECT TITLE b ME C C D ECCS Throttle Valves U1 U1C9 50 % 50 % ECCS Throttle Valves U2 U2C9 50 % 50 % ASME Sect XI Containment inservice Inspection Program 10 % 20 % 40% Turbine Generator Long Range Maintenance 60% 15% Work Management System Data Bases 45% 30% 25% ISI Support U1C8 Jun-97 100 % E.osion/ Corrosion U1C8 Jun-97 100 % Coatings Sep-97 100 % Raw Water Inspection Sep-97 100 % Erosion / Corrosion U2C8 100 % ISI Suppad U2C8 100 % Drawing Backlogs 40% 35 % 25% Thermolag Enhancements 10% 45% 45% 11 SQ960654PER Resolution (Partial Mods) Sep-97 100 % DCN Closecut U1C8 70 % 30% Relief Valve issue Unit 2 & Common U2C8 40% 60 % Relief Valve issue Unit 1 U1C9 35% 65% 1

O SEQUOYAH O&M PROJECTS LIST FISCAL YEARS 1997-1999 l 5 O@ S E S 5 O O O PROJECT TITLE ' ;8 IE OE i M L j 3 Loss of Voltage Relay, Annunciator Main Bus U1C8 Apr-97 100 % Replace Flow Switches 5% 65% 30 % Control Air for ABGTS Jul-97 100 % Thermal Barrier isolation Vivs U1C8 Apr-97 100% Ecolochem Sep-97 100 % PROJECTS TO IMPROVE RELIABILITY MCR Annunciator Jul-97 100% Replace Doors C49 and C50 100 % SCWS Pump Discharge Iso Valves U1C8 Apr-97 100 % SCWS Pump Discharge Iso Valves U2C8 50 % 50% Con Demin Waste Sep-97 100 % NASH Relief Valve Drain Pipo U2C8 65 % 35% U1 Upgrade Rad Monitor Software Jul-97 100% U2 Upgrade Rad Monitor Software Sep-97 100 % Sight Glass Replacement UIC9 85 % 15% Sight Glass Replacement U2C8 55% 45% No. 7 Heater Drain Tank Flow in MCR U1C8 Apr-97 100 % No. 7 Heater Drain Tank Flow in MCR U2C8 80 % 20% U1 No. 3 HDTP SealInjection Low Delta P Alarm 20% 80% 2

SEQUOYAH O&M PROJECTS LIST FISCAL YEARS 1997-1999 o s $z$ b b^ b I PROJECT TITLE 9 8x t t t ERCW Traveling Screens 5% 95% Various Reach Rod Operated Valves 30% 35% 35% Press Conirol Vivs 77-430,431 U1C9 30% 35% 35% Press Control Vivs 77-430,431 U2C8 50 % 50 % Add T-Drains to 35 MOVs (U2C8 & U1C9) U2C8 30% 35 % 35% l Jun-97 100 % U2 AMSAC Test Switch Change Elev Benchmark Liquid Level Gauge U1C8 Apr-97 100% i U1 AMSAC Test Switch Jun-97 100 % System De,scriptions Sep-97 100 % Remove Z3 Zener Diode from SA-1 100 % MG Set Switchgear Test Jack / Digital Indication Unit 1 U1C9 60 % 4J% MG Set Switchgear Test Jack / Digital Indication Unit 2 U2C9 40% 60% Add Time Delay to CBP Low Oil Pressure Signal Unit 1 75% 25% Add Time Delay to CBP Low Oil Pressure Signal Unit 2 75 % 25% Status Indication for Aux Feedwater initiation Unit 1 U1C9 100% Status indication for Aux Feedwater Initiation Unit 2 U2C8 70% 30 % 3 -}}