ML20197H203
| ML20197H203 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah |
| Issue date: | 12/11/1997 |
| From: | Lesser M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Zeringue O TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 9712310218 | |
| Download: ML20197H203 (48) | |
Text
{{#Wiki_filter:' December 11, 1997 y b 'b Tennessee Valley Authority y ATTN: Mr. O. J. Zeringue Chief Nuclear Officer and Executive Vice President 6A Lookout Place 1101 Market Street Chattanooga. TN 37402-2801
SUBJECT:
MEETING
SUMMARY
SEQUOYAH NUCLEAR PLANT. DOCKET NOS. 50-327 N4D 50 328
Dear Mr. Zeringue:
On ucember 2, 1997, the NRC staff met at the Sequoyah Nuclear Plant Training Center with represcntatives of Tennessee Valley Authority Management. The purpose of this meeting was to discuss the operational performance of the Sequoyah Units. including performance improvement initiatives. 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. pf in accordance with Section 2.790 of the NRC's " Rules of Practice." Part 2. f Title 10 Cooe of Federal Regulations, a co)y 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. OriginalSigned by M.S. Lesser Mark S. Lesser. Chief Reactor Projects Branch 6 Division of Reactor Projects Docket Nos. 50-327, 50 328 License Nos. OPR-77. DPR-79
Enclosures:
- 1. List of Attendees
- 2. Handout Material cc w/er.cis:
(See page 2) \\ \\ \\ j7d" 283 Ma@g7 11,ll,1( D J p xr
7 Li TVA - l2 cc w/sncls:
- Senior Vice President
--Mr. P. Salas, Manager Nuclear Operations Licensing and. Industry Tennessee Valley Authority Sequoyah Nuclear Plant 6A Lookout Place P. O. Box 2000' 1101: Market Street Soddy Daisy. TN' 37379 Chattanooga, TN 37402 2801-Mr. J. T. Herron Plant Manager- ~ - Mr. J.-A. Bailey Sequoyah Nuclear Plant 'Vice President Tennessee Valley Authority Engineering and Technical Services P. O. Box 2000 .6A Lookout Place-Soddy Daisy. TN 37379 .1101 Market Street Chattanooga, TN 37402 2801 -Director Division of Radiological Health
- Mr. M. Bajestani.
3rd Floor. L and C Annex Site Vice President 401 Church Street Sequoyah Nuclear Plant Nashville. TN 37243 1253 Tennessee Valley Authority P -0. Box-2000 County Executive Soddy Daisy. IN 37379 Hamilton County Courthouse Chattanooga TN 37402 2801 General Counsel Tennessee Valley Authority Distribution w/encls: (See page 3) ET 10H 1400 West Summit Hill Drive Knoxville.:TN 37902 Mr. R. R. Baron General Manager huc W r Assurance-4J Blue Ridge-1101 Market Street Chattanooga, TN 37402 2801 Mr. M. J, Burzynski. Manager Nuclear Licensing Tennessee Valle 4J Blue Ridge y Authority -1101 Market Street-
- Chattanooga. TN 37402-2801--
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TVA 3 [istribution w/encls: .J.-R. Johnson, Ril M. S. Lesser. Ril S. E. Sparks. RII F. J. Hebdon, NRR R. W. Hernan. NRR W. C. Bearden, i:11 C. F. Smith. Ril D. H. Thompson. Ri! L. S. Mellen. Ri! E. D. Testa. Rll PUBLIC NRC Resident inspector U. S. Nuclear Regulatory Comission 2600 Igou Ferry Soddy Daisy. TN 37379 NRC Resident inspector U. S. Nuclear Regulatory Comission 1260 Nuclear Plant Road Spring City. TN 37381 i I or rim surfull H"'" - ?E&g)q s--. ' yvyi uun AU & IVT TU 17T 1Z: /VT "l/ IVT 12/ 17T 11/ IVT 1U IVT wv r W5 up M5 up R5 up us up M5 up R5 m ns up 0FilCIAL REC W (DPY DX18ENT WAIE: Gr\\lh6.99WUO2.RSI or s---w m
LIST OF ATTENDEES-MC J. R. Johnson. Director. Division of Reactor Projects (DRP) Region II (Ril) F. J. Miraglia. Jr.. Deputy Director. Office of Nuclear Reactor Regulation (NRR) M. C. Shannon. Senior Resident inspector. DRP. Ril F. J. Hebdon. Director. Project Directorate 11-3. NRR R.W.Hernan.SeniorLicensingProjectManager.NRR Licensee Attendee 1:
- 0. J. Zeringue. Senior Vice President. Nuclear Operations M. Bajestani. Site Vice President P. Salas. Manager. Licensing and Industry Affairs J. T. Herron. Plant Manager M. Fecht. Nuciear Assessment and Licensing Manager J. Valente. Engineering and Materials Manager L. Bryant. Outage Manager D. L. Koehl. Assistant Plant Manager
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g i c,.., Agenda ] M. Bajestani - ] Introduction Plant Performance - .J. T. Herron. i - Unit 2 Cycle 8 Refueling. utage D. L Koehl O Department Performance H. H. Butterworth Operations Maintenance and Modifications E. E. Freeman ' Engineering . J. Valente Plant Support (RadCon, Chemistry, Fire Ops). . C. E. Kent / J. H. Casey a Material Condition - D. L. Koehl - . i System Health i Diesel Generator i Freeze Protection QA Overview . R. M. Norton Conclusion M. Bajestani - i 1 Bajestani .... ~.. h,.m_ a
1 ^ I Introduction Successful U2C8 Refueling Outage Performance - Safe continued operation of Unit 1 - Outage goals met Continuing Plant Performance Improvement - Material Condition - Human Performance } 2 Bajestani U
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Plant Performance INPO Performance Index 100 - 87.9 59 n.6 A N ** 4 se.a na 0 ,3 ';u y* * ' 80 - % ~n 333 p am 7,4 no, .3 70.4 76.4 'U o .u t su s72 74 60 - .3 4 36.3 -+-UNIT 1 -as-UNIT 2 Industry Median 40 Q1 Q2 Q3 Q4 Qi Q2 Q3 Q4 Q1 Q2 Q3 Q4 95 96 97 TD SON Unit 1 SON Unit 2 Actual Actual Perftrmance Indicator Value Weight % Mar lader Value Weight % Max Indes u, t.o 87h 14.0 _2 16 _ _.89.5 14 3,. m,83.83,,,.,_; 12;w,-,,611 J-4..;j,.,.,% 7.8 84 " l0.J 5.24;t.3 $ Umt Lapatshty Fact.or. (1)....,..... ~. ..n 6 d Unplanned Capataliiy 1.oss factor.(1).<,' _j,.-we,i; J '.i n,n,12. w.64.2z. ,7.7f ~ ~
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100. 0 ~ ,8.0.. 0.450 8.0.. ction Synen (1),,gef. ".' O.00(..~ y. 8,_ 100 0..... ag:s10 ij& 100.0 c. m.,,10.0p..L Unpla.nned Automat.ic.Sc liigh Pressure Safety Iny,.r,ams.1) ..( o_., 0.008 ;.,,.,,10,m;100.0;.. ._J10.0 .y JA L g w 100.0 0 029 10,,.- 38 3 _ 3.8 . 10 0..,,,,o.011.. n.-10; g fg 97.$,, 4 "s9.8 Emergenc,y AC Power (Site)(1)M;G,,..-- 0.007,,, ~. 10.ny;;;e.;b0.011 g;;;, W102:@97.5. _;;g;q9.8h e Aux.iliary Fr,edwn er.,Sysicm (1) ~- t AM 29 Collective Radiation Exposure./. Unit (1) 144.43 8 812 6.8 197.39 8.,. 67.5 5.4 r--,.~- --m . ~o.cn.0004ggr.g_8;w: 100.0. g.-;; 8.0 w ..c p -- rn -re..- .-r 0.0048)w; gg.t 8 ;6v.? 24.5R. tg 2.06., ...a ..t a n.w - n. - - - p I6el Reliabilitj(3)hn. y, E 'e ;.ggg,fe z; L gy. t Thermal Performance (2) 99.96 6 98.0 5.8 99.55 6 77.3 4.7 17,..l.d7. T..m au,7am^U1001 E. ^i..M. 7.0 TW E.m., 34.4.M.wn, S.I.?..-:4. 2 O 'ChemistryIddicktoi(2)E, ~1 J. *W:i? 7-[.f,337 E..nM. ~n 1 .. in 2.w c a - c ~ Industrial Safety Amident Rate (Site)(2) 0.09 5 100.0 5.0 0.09 5 100 0 5.0 INPO Performance ledex - October 1997 100 84.6 100 E.1.5 (1) based on 24 month average 5 (2) based on 12 month average (3) based on 3 nwnth average -A - u.
Plant Performance INPO Indicators El Safety Injection System suurut asund 2 W Avg etnd Med 0 04 - GOOD N 0.03 - 4 l 1 Ow-3 0 01 - 1994 1995 19G6 1997 Auxiliary Feedwater Emergency A/C Power System 0.02 - 006-soUrnt i asund 2 *W Avg *Ind Med GOOD CA)O D e S8e
- N Avg
- ins Mat 0M-0.015 -
OC4 - 0 1994 1995 1996 1997 1994 19G5 1996 1997 6 Herron a A-
w, .seis. rr a'h' Plant Performance INPO Indicators Scrams per 7000 Critical L' Turs zs - =s.. w 4 2. w ued 2-GOOD 1.5 - i 5~ m4 ms 199s m7 Chemistry Indicator Industrial Safety 4-0.7 - astht 1 mune 2 *IndMed assaa +kus Avg ekut und 0.6 - l GOOD 3 y 1 p 04-j 2-j 0.3 - S 1994 1995 1996 1997 1994 1995 1996 1997 7 Herron L
Refueling Outage U2C8 Goal Status Safe and reliable Unit 1 operation - Unit 1 operated at 10u% powerfor outage duration / No events - No significant events (e.g., ESF, loss ofshut down cooling, reactivity / management, etc. ) -/ Strong Unit 2 performance after startup-Unit 2 isperfonning well No LERs or violations - One LER on missedpressurizer PORYsurveillance requirement / No more than 1 recordable injury - Zero recordable injuries / No lost-time accidents - Zero lost time accidents in 408,000 man-hours worked Less than 230 REM exposure and no high rad violations - Actual exposure was / 140 ram exposure and no high rad violations Clear outage TACFs - 14 cleared / Clear temporary leak repairs - 23 cleared 4 / / Clear outage control room deficiencies - 34 cleared Total completion of baseline outage scope - 2,155 completed / Outage completed within schedule and budget - On schedule and within budget / 8 Koehl
O,' Refueling Outage Material Condition Improvements - Reliability / "A" LP rotor replacement - Completed s Rod control diagnostics - Completed by Westinghouse - included cleaning and refurbishing control cards and performing diagnostic testing of rod control components s 6.9kV breakers - 11 completed / ASCO SOVs on BOP - 70 completed / Rebuild primary and BOP pumps / motors - 14 completed including installation ofa new motor-driven auxiliaryfeedwaterpump / RCP motor and seal replacement (1 each) - Replaced No.1 RCP seal package and inspected No. 3 seal springs on other 3 RCPs. Installed refurbished spare motor / coolers in No. 4 position / Main bank transformer inspections - Completed inspection and modified core grounds on main bank transformers 9 Koehl e
Refueling Outage L Material Condition Improvements (Continued) - Man-machine interface / Install redundant channel Mansell RCS level monitoring - Complete; usedfor back end mid-loop / New main feed pump recirculation valves / controllers - Complete s Modify turbine steam seal system - Complete; installed new gland seal steam spilloverpressure control valves and steam supply valves / Install new pressurizer safety valves and modify tailpipe - Complete s Resolve reset wind-up issues - Complete; installed new pressurizerpressure master controller / Continue 480v motor starter (Arrow Hart) replacements in BOP - Continued with 70 buckets . replaced s New No. 2 feedwater heater bl pass to condenser - Complete; reduces startup transients / Upgrade RCP seal leakoff flow indicating loops - Complete; more reliable sealleakoffflow indication; cleared a TACF Install RHR piping new high point vents - Not completed due to cm/t avallability and - relative priority / Clear control room deficiencies T4 cleared / MSR and FWH Sightglasses - Complete; installed 28 new levelindicators with integrallevel switches 10-Koehl e
Refueling. Outage Material Condition Improvements (Continued) - Equipment performance s Install new electrical containment penetradons - Replaced 3 canister type penetmtions with modular type due to high resistance and high leakage Vital instrument power board maintenance - Completed s s Temporacy leak repairs cleared - Cleared 23 Unit 2 temporary repairs 's ' Flow-accelerated corrosion inspection / repairs - Completed 143 inspections - 6 feet large bore, 240 feet small bore, weld buildups on condensate boosterpiping s Ice condenser subfloor dewatering - Installed 35 wellpoints in 5 bays, heated thefloor, and removed 424 gallons of water. Chipped underselected doors to gain additional clearance s Steam dump system improvements - Rebuilt 12 steam dump valves and com;>leted mods to the drain system to improve water removal ability Steam generator - Sludge lanced the 4 generators (l10 pounds removed) and completed / approximately 28,000 eddy current tests. Plugged 23 tubes and performed 3 in situ pressure tests s Main turbine oil tank demister - Installed new demister to reduce oil vapors discharged to the atmosphere 11 Koehl
Refueling Outage U2C8 Modifications Main steam drain trap vibration Addition of T-drains to 17 motor-operated valves Feedwater flow sense line heat trace Stator cooling water pump isolation valves Manselllevel monitoring system No. 7 heater drain tank flow to MCR In-mast fuel sipping . Tell-tale drain hard pipe ASEA transformer cooling fans / pump contactors BOP runback circuit armed indication Electrical separation on 2-M-6 .- Flow modifier FM-3-142A Delete drains VLV-3-1101 -1102. -1103 -1104 - Replace reactor coolant pump No. I leakoff FIT. 10.-11.-23,-24,-36,-49, & -50 Replace air pack circuit breaker 2-R-14 thru 2-R-24 (11 cach) Component cooling water bearmg lube water Articulated arr.1 for RCP seals No. 2 feedwater heater bypass to condenser - Motor-driven auxiliary feedwater pump replacement No. I feedwater bypass sparger relocation Modify mirror insulation on reactor head Enlarge No. 3 heater drain tank sparger holes ' Replace obsolete Westinghouse relays Component cooling system operable modes / pipe support modifications Main turbine oil tank and main feed pump turbine turbotoc tie-ins Removal of Thermo-Lag over the reactor trip breakers Arrow Hart and Allis Chalmers replacement Pressurizer manway bolting Reactor coolant pump No. I seal insert support machining -- Main feed pump miniflow valve, orifice and controller Centrifugal charging pump speed increaser oil pump cooling Pressurizer safety valves tailpipe modifications Remove manual lift on main steam safetics Tailpipe temperature setpoint alarm B&W fuel electrical calculation /supoint and ' scaling document Obsolete recorders (only two in the outage) Remove manual lift on pressurizer safetics Replace electrical penetration X-169, -142. -134 DP test connections - System 063 Delete neutron monitoring recorders Eliminate solid state relays on contamment isolation valve Steam dump drain modi 5 cations Rework / repair cable No. 4 - accumu' 2 tor room . Replace valves on turbine seal steam system Install auxiliary feedwater injection Loric acid pump Ice condenser floor dewatering Replace LT-3-148 and LT-3-171 . - Moisture separator reheater and feedwater heater level control system 12 Koehl Note: Iri hlighted items are considered significant (utage activities E
Sequoyah Nuclear Plant 1 Refueling Outage Comparison f!!,, A"818 Mar if Jun 2 Jun 13 O gg sn .r u-a i me oa Ji i u y MM Her u Jun 11 27 i~. UIC6 2'"*> aa ragetsim$ n. wesf u ses ", ', ~ an p.y. J-u u.,.. n j w* U2C6 W i' n. au f iu o.7 s., i.. n m -l UIC7 i= = g Feb 1I 9*p 9 No Ii 23 II hp 23 Apr M Jun,, gg .b g Mee 32 Me713-19 Joe IE Aug I had 34 1 g CC Online to 100% Rs Pwr ?*1.il % RX Power Scale - 160 days (F.Acept for UIC6)
Operations Unit 2 Cycle 8 Outage Perfonnance 1 - Organization Changes .. Three Shift Managers per crew Specific coordinators and managers in the Work Control Center (WCC) Realignment of resources for bulk work activities Operations Outage Organization s.pe,, d =tsee M s==ser I I Usk 1 Unit 2 Ontap Shift Manager SM SM i i Unit 1 Unit 2 Special Servenance US USG) Frepe, M aser I i Unit 1 Unit 2 WCC FMT UO(2) L'O (2) SRO Coeremmest i i Unit 1 Unit 2 Tagging Bor AUO(5) ACO Q) Cserillaster Couremeter I4 Butterworth
L l Operations Unit 2 Cycle 8 Outage Performance - Personnel Changes .. Determination of position attributes .. Selection of key personnel in critical roles c . Providing training / overview of outage schedule and activities Development of work schedule that provided the resources .- Leadership and Ownership Unit 2 Shift Managers and supervisors Outage Shift Managers i . Tagging coordinators "Out of the box" thinking 15 Butterworth ~
Operations Unit 2 Cycle 8 Outage Performance - Command and Control . Schedule discipline Critical evolution control - Management Oversight Additional shift management and senior management in the control room (Assistant Plant Manager, Operations Manager, and Operations Superintendent) Additional WCC supervision in the field (BOP Coordinator, Surveillance Manager, Special Projects) Coi..inuous reinforcement of expectations on "doing things right"' 16 ' Butterworth .D
Operations Performance Indicators - Status Control . Identified by PER program' Past Trend of Status Control Errors reviewed by MRC, 8-statused and discussed weekly in the POD meetings 6 Manipulated and verified over } l8,000 components through y. clearances and over 3,900 ~k through lineups I j Independent third-party review lh of approximately 7,500 safety 1 and technical specification g components and identified no J ! I - W B o issues R R E E E E EEE EE E E $ ?$ 5$$"$5EE$5$ Significant improvement from the previous outage 17 l Butterworth i l a
Operations Performance Indicators - Procedure Adherence Past Trend of Procedure Adherence Errors 8~ . Identified by PER program, _r-reviewed by MRC, statused and discussed weekly 6 in the POD meetings k Significant increase in activity 4 q during an outage with 37,000 opportunities on Unit 2 and g N 35,000 on Unit 1 2 l l. r .s h h* Significant improvement from g the previous outage
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$$5$55"E5EER5E Three errors tied to i Tools left in ice condenser without notifying the control room Clearance released before all clearance holders off the clearance i '8 Discharge valve not opened before the 2B-B CCS pump started i s
4 a-*- . ~.... - -m <~ 1 .i 1 1 1 4 Operations 1 t 1 Operations PERs l j Operations Caused PERs i Human Performance Related 45 - 45 - -Trond a Adual -Tsend as Ad.sef [ 40 - 40 - as - as - i ao -- ao - 2s - 2s - t zo - 20 - f is - is - io - io - s-s- o O \\ 2 3 8 3 2 3 k 3 k' a a 2 2 3 3 2 2 3 2 3 2 3 2 2 2 2 8 5 N E $k A 8 8 8 5 N E $k A 8 l i i 1 19 Butterworth i l i i .i
( 6 4 1. A a a m u. I-h Operations-Conclusions - -Success Factors Incmased management involvement Number of management observations from July 97 through - November 97 (Use of Procedures 237; Clearance Process 127; AUO Watch Stations 71) Communication and reinforcement of expectations Self-critical culture with open lines of communication Aggressive approach to resolving issues AUO increased ownership'of plant. - Continual Focus Areas Improvements in human performance (status control, procedural [ adherence, clearances) Improvement in AUO performance - conduct and quality of rounds Improvements in the ownership and execution of the daily work schedule 20 L Butterworth s m.* a r + g g,."r g..- y n.yy y. --g-. g g gp,
4 Maintenance and Modifications Outage Performance - Human Performance . No lost time or recordable injuries QC inspection acceptance rate >98% Fewer Maintenance-caused PERs - U2C8 (74), UIC8 (203) No events - Material Condition . Total outage WOs completed was approximately 2,200 Non-outage corrective maintenance backlog was reduced Overall backlog is approximately 3,000 after U2C8 vs. 3,600 after U1C8 21 Freeman
.i Maintenance and Modifications Continuing Backlog Reduction & Material Condition Improvements - Non-outage corrective maintenance (CM) backlog reduction is on track to meet goal of 250 by end of year - Work off of CM greater than 1 year old is better than goal - Freeze protection upgrade completed NoWapComniwWmmWM > 1 yr Old u n,,.. ;,.;.-.,. n g,.,,~ m m. 7 m :.., y c y ;. -.y da - Switchyard status is now " white" ' ' + d W #p c y =:J $ = - d'" "* i" 3m-
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c -~ v w> w, pM, Q,,8,f"T - '." ; ~ 300 - J s ew . ~ w:.- Continuing Focus Areas . w m. ya 2m. ~y fff %; 4 '::,1 J i i f.a w. m & g e w, z g 2,. u - Human Performance Improvements C WMf@4 ;;" d, g i% :f; E ^ no sim : >m a m Results are being realized Y c / ' M,z. : :L. f M T. t i ~- w x.m ~.; . Management remains focused ...'.'.".. i. 74 wa JJ, W o. aaaa: asa=
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= - Troubleshooting techniques I e i i 1 e j $ A = i Ji i A 2 =i 1 e - Preventive maintenance effectiveness study 22 Freeman
Engineering Outage Performance - Timely outage support Real-time engineering inspection and evaluation in field . Design changes are responsive to plant needs - Unit 2 Cycle 8 steam generator (S/G) status .. Unit 2 steam generators in good condition for full cycle of operadon Less than 2% of the tubes plugged to date Small volume of sludge (110 pounds) removed during U2C8 RFO No detectable primary to secondary leakage n Valente
Engineering Continuing Focus Areas - Generic Letter 89-10 Program Completion . Nine activities were identified for program closure Identified activities are complete except one modification on containment spray valves for Units 1 and 2 . Maintenance of Unit 1 PORV block valves scheduled for UIC9 RFO - Quarterly System Reviews Review of control air compressors completed . Review performed by TVA multi-site team of design and system engineers . The team concluded that the Centac Compressor design was sound with long-tenn reliability expected 24 Valente ,a n .=. =
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Material Condition (Continued) Condition of Diesel Generator (D/G) - Unavailability is low - 2A-A D/G unavailability slightly above others, but well within industry goal - Low number of start failures per 25 demands - D/Gs considered strong performing system DG Start Bilures/25 Demnh DG UrzaailaNiity T 3- -r- <y. 0.03 ~ .r : .e,-.. -~; m.,,,-,. c~w,,7 ~. I
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Material Condition (Continued) ) ~ Freeze Protection Efforts l l i Modifications Completed i j . Four major DCNs implemented for heat trace, control circuits, and insulation l resulting in approximately 4.500 feet of heat trace,100 thermocouples,320 l i splices,1,500 feet of control wiring,350 feet of conduit, and 1,500 feet of insulation. Implementation required approximately 11,000 man-hours to complete i Units 1 and 2 feedwater heat trace i i l - 'Feedweer Flow Instrument Tapi ~ I 4 i p = l 's' Y-f. ~ "{ - fl' _ s y Ef 38 Koehl
l Material Condition i (Continued) i l 4 Freeze Protection Efforts (Continued) Fire Pumps } . 11 Modifications Completed ,~j', Mn (Continued) 'p' . Fire Pumps No.1 A and 2B heat trace N' '~ ^ ~ s + Units 1 and 2 RWST heat trace n ~' CCW screen heat trace i ' ', CCW ScreeiiWash Pumps' ERCW heat trace .e e 4 .~ .s f qq
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Material Condition (Continued) 1 Material Condition Improvements i i MSR Level Gauge / Sight Glassi ~~ j 3 Unit 2 ? Unit 1 . M m. 3
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\\ Material Condition l (Continued) i Material Condition Improvements i LUnit 2 Motor Driven Auxihary _ )ERCW ChemicalInjection Pumps - Feedwater Pump -{ ^ '.- l ~ ~ 7. gg I - K 33:
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QA Overview. Unit 2 Cycle 8 Outage Oversight Plan - Pre-outage coverage - Focused assessments l - Dedicated activity owners (assessors) - Key projects, critical evolution, backshift activities - Defined methodologies - Separate outage report - Special status / clearance team-Unit 2 Cycle 8 Outage Oversight Conclusions - Overall outage performance was very good - Positive management involvement l - Outage planning was excellent - Maximum QA outage oversight time with only minor issues identified 42 Norton
Material Condition Overall Plant Health - Unit 2 Outage Results . Targeted six " yellow" systems to be improved to " white" based on U2C8 outage results Main Steam - steam dump drain system improvement / Heater Drains and Vents - No. 2 feedwater bypass to main condenser / Diesel Generator-governor actuator replacement / Main bank transformers and switchyard modifications / Chemical Volume Control System / 6.9kV boards Electrical functional area changed from " yellow" to " white" based on system health improvements t RadCon/ Chemistry functional area changed from " yellow" to " white" based on system health improvements . Operator workarounds - Priority I workarounds closed on Unit 2 All scheduled temporary alterations and temporary leak repairs cleamd 33 Koehl --}}