ML20056D715
| ML20056D715 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 05/21/1993 |
| From: | Colburn T Office of Nuclear Reactor Regulation |
| To: | Bill Dean Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9308170359 | |
| Download: ML20056D715 (27) | |
Text
{{#Wiki_filter:, C g gg7 c3 h[ 3 May 21, 1993 MEMORANDUM FOR: William Dean, Acting Director Project Directorate III-l Division of Reactor Projects III/IV/V FROM: Timothy G. Colburn, Senior Project Manager Project Directorate 111-1 Division of Reactor Projects III/IV/V
SUBJECT:
MEETING
SUMMARY
A periodic management meeting was held with managers of Detroit Edison Company (Deco), licensee for Fermi 2 and NRC managers from headquarters and Region III on April 28, 1993 in Room 13/B/9 of OWFN in Rockville, Maryland. A list of attendees and agenda is enclosed. The licensee discussed the recent independent verification program and the recent personnel reorganization at fermi 2. A copy of the licensee's slides is also enclosed. Original Signed By: Timothy G. Colburn, Senior Project Manager Project Directorate III-I Division of Reactor Projects III/IV/V
Enclosures:
As stated DISTRIBUTION Central, File NRC PDR PDIII-1 r/f k*ft$hM' bb J e J. Zwolinski T. Colburn M. Phillips W. Kropp P. Shuttleworth i LA:PDII-p(jf-PM:PDIII-1 (A)D:PDIII-I .{b PShuttleWor't TColburn:sw WDean N SfLt/13 9308170359 930521 PDR ADOCK 05000341 P PDR t a
b O O May 21, 1993 MEMORANDUM FOR: William Dean, Acting Director Project Directorate 111-1 Division of Reactor Projects III/IV/V FROM: Timothy G. Colburn, Senior Project Manager-Project Directorate 111-1 Division of Reactor Projects III/IV/V
SUBJECT:
MEETING
SUMMARY
A periodic management meeting was held with managers of Detroit Edison Company (Deco), licensee for fermi 2 and NRC managers from headquarters and Region III on April 28, 1993 in Room 13/B/9 of OWFN in Rockville, Maryland. A list of atter. dees and agenda is enclosed. The licensee discussed the recent independent verification program and the recent personnel reorganization at Fermi 2. A copy of the licensee's slides is also enclosed. Original Signed By: Timothy G. Colburn, Senior Project Manager Project Directorate 111-1 Division of Reactor Projects III/IV/V
Enclosures:
As stated DISTRIBUTION Central. File 'NRC PDR PDIII-1 r/f PDIII-1 Gray file J. Roe. 1 J. Zwolinski 'i T. Colburn M. Phillips W. Kropp P. ' Shuttleworth l LA:PDII-V/b PM:PDIII-1 (A)D:PDIII-l PShuttle9 rtn j TColburn:sw WDean N $f.uf3 f
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o 1 d I UNITED STATES 'i t 'f* 5 NUCLEAR REGULATORY COMMISSION -{ ~ Wl 1 WASHINGTON, D.C. 20NE0001 j May 21, 1993 i MEMORANDUM FOR: William Dean, Acting Director 1 Project Directorate III-I Division'of Reactor Projects III/IV/V FRCM: Timothy G. Colburn, Senior Project Manager. Project Directorate III-I J Division of Reactor Projects III/IV/V t
SUBJECT:
MEETING
SUMMARY
t I A periodic management meeting.was held with managers of Detroit Edison-1 Company (DECO), licensee for Fermi 2 and NRC managers from headquarters and l legion III on April 28, 1993 in Room 13/B/9 of OWFN in Rockville, Maryland. _A list.of attendees and agenda is enclosed. The licensee discussed the.recent. independent verification program and the recent personnel reorganization at-j .i Fermi 2. A copy of the licensee's slides is also enclosed. t -?'l f $~ Timothy G. Colburn, Senior Project Manager ' } Project Directorate III-I l Division of Reactor Projects III/IV/V
Enclosures:
i d As stated DI j i l. 1 .l l i l .. ~.
(v~') g FERMI 2 DETROIT EDISON COMPANY /NRC MANAGEMENT MEETING. APRIL 28. 1993 ATTENDANCE LIST NAME ORGANIZATION / TITLE John Zwolinski NRC Assistant Director for Region III Reactors William Dean NRC Acting Director, Project Directorate III-I Timothy Colburn NRC Project Manager, Project Directorate III-I Monte Phillips NRC Chief, Projects Section 2B, Region III Wayne Kropp NRC Fermi 2 Senior Resident Inspector Douglas R. Gipson Detroit Edison Co. Senior Vice President, Nuclear Generation Paul Fessler Detroit Edison Co. Technical Manager Robert Stafford Detroit Edison Co. Nuclear Assurance Manager Joseph H. Plona Detroit Edison Co. Superintendent, Operations William Miller Detroit Edison Co. Director Nuclear Licensing Robert Newkirk Detroit Edison Co. Licensing Supervisor N
(~'} g AGENDA NRC MANAGEMENT MEETING ONE WHITE FLINT NORTH ROCKVILLE, MD ROOM 13-B-9 10:00 a.m. - 12:00 noon o INTRODUCTION D. GIPSON (10 min.) o EXTRACTION STEAM LINE P. FESSLER (45 min.) o INDEPENDENT VERIFICATION PROGRAM J. PLONA (20 min.) o REORGANIZATION R. STAFFORD (15 min.) o CLOSING REMARKS D. GIPSON (5 min.)
Ib W $;$$$ 5 rellm9 z :. ~ L Configuration 9 Nozzle, Bellows, andPipe with elbow Ploe support welded to extraction line Na tural frequency approxima tely 9 hz Failure Analysis Pipe support design provided a high stress concentration area ~ Startup/ Shutdown cyclesproduces thermalstresses O Thermalstressesplusingh cycle fatigue causedfailure Pipe failedatpipe support Pipe failure caused bellows failure
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Pipe Support 4N Extraction Steam Line i i \\' 'i<s, -e r AY' ' A 1 a - \\ / V I g\\ g ' \\ ~l . Gusset iSupport attached to 1 & 2 Center Feedwater Heaters . t> .,... ~.,... g: s-.n .. 4 , y :- te % a, ,'g ,,, lu.e AhI ~' lN '?,. Ga* a s 4 i u - CrackPropagation Je / b AL h. N_ .. P -. y aa1 \\ ----- Crack initiation .m, Initial ranure Post Piping Layout December 1,1992 RF03 1
or F. g;.o;. \\ Center LP Turbine Center LP Turbine w w .y.., x: [ x Bellows Bellows g. -lg, x 43.c , xjj,. .xw-l1 ' A.x, s Condenser Wall l p,ggg. Tap e L 4N Extraction Steam Line 'N Modified N 6 _s Pipe Support ~. w ~ e'- (Saddle)) r T \\ / r / \\ t y] Gusset Support attached to 1 & 2 Center Feedwater Heaters g t s. Aw' Ys 'bes5? W. h t3 **) a ua,.9 {. :t
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- llTDN, Configuration Nozzle, Bellows, and Pipe with elbow Pipe support modified (saddle without attachment welds)
Upperrestraint added = Na tural frequency approxima tely 13 hz Failure Analysis Upper restrain t provide " solid " con tact poin t Modifications changed system to a resonant frequency y Pressure measurement determined line hadpressure pulse of5lbs at13 hz Cyclic stresses caused fatigue cracks in pipe = Pipe failure caused bellows failure Failure ofinner liner resulted in increased vibra tion Cracks reached critical size; Pipe and Bellows failed ~
1 F h, 1 ~. CenterLP Turbine CenterLP Turbine w a u a s h' E, /I - J / s.- i ^ ~.. u h,' i n~ 1 3 . 'g g s. s k.' v s s,s s 3g -gg -.x.< > x.n x x' ,-.X-X,X jl ux. x s s. s s. s s. i Condenser lf., \\ ll Wall lc p,ggg_ ) ^.. -. -...., Tap Stiffening Ring 4N Extraction Ste' m Line m -a y \\ 's, _,) i g ,r' s \\ / t r\\ i I / ' \\ /] Gusset Support attached to i l 1 & 2 Center .i FeedwaterHeaters "' . x ~, . ' Stiffening Ring u a; / A u.s y
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. 13 44 n-w \\' f', 1 j e / /3 i.' ..y. m- .* r ? y n + + g r Hard Pipe Layout Apr. 21, 93 J 1
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- n-O Configuration Bellows andsupport removed HardPioe configuration to Condenser wall Add stiffener to strengthen sleeve at Condenser wall Reinforcement ofwallpenetrations Steel Sleeve to condenser wall weld removed Naturalfrequencyabove 30hz
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h M h N i YlbW oneW]WBn , - _ _ - - - - - - ~.,. -. 7 Scram Event e Pressure Transducers were installed at six (6) locations to measure pressure in the extraction steam lines and moisture separatorreheater Thepipingand valves were existinginstallationsin theplant l No newpipe or valves were added At one location the assembly was incorrectlymade using l NationalPipe Thread fittings and standard thread fittings in c the wrongcombinations qp Each assembly was inspected visuallyprior to start-up and at [ 200# steam pressure, and no problems were observed The mis-assembledinstallation leaked steam and damaged l two transmitters forpressure regulation andresultedin the l plant scram
O O Transducer l T s \\ 1/8" NPT 4 / I i (Taper Exagerated) j J l n 1/2" NPT l i Y (Tapered) \\ V j i f ? U [ i I 1
$ 3IIl]$lfh ? Tt5$fS/M @! 0!b'l S Il5hi{lIS S[$(fSiS MmpsmdlReadwatnrMantarDmWm Pres Steam pressure on #3 extraction line approximately25lbs. O ^ = Approximately1/3 ofthe #4 Extraction Line Steam pressure on #1 & #2 approximatelyatmospheric Stresses at support on #3 are lower = Inspections 3 North & 3 South Extraction Lines = Inspectedlines, bellows, welds andlagging 1 & 2 Extraction Lines and Heaters = Inspected bellows andlagging g Inspections after both events indicate no changes Plant Restart L l Specific holdpoints at 50, 70, 86, and 96% power levels to monitor \\ turbine and extraction line performance l l l
b $3 J @ MEri @ h@ E m W Causes e Pressure Pulsations not a concern Technical Error - Overly Confident, Narrow Focus Corrective Actions Lessons Learned + Redesigns need to boundpotentialfailures .s . : e / ~ + Investigatenewfailuremodes i:c ' f.,, 'l ' : ReviewEDPProcess - PersonalAccountability Critique / Lessons Learned O Training + PersonnelErrorReduction TechnicalStaITandManagers + + Root Cause Training RestartData Collection andEvaluation l Independent Review t t a m m -.- a %-w4.- e,-~ r.-=-- ,~v w--,- --e.+ o-e -. -.. r c- = .-.-w,.w
Y$hYk 5 sfy Framge -.e.a-@*L 41 ._..a# ...M . - -.~ Causes FinalDesign Changes not reconciled with Field "As-Built" Communications Corrective Actions AtRisk Design Changes suspended AtRiskProcedure review 4 PersonalAccountability Critique / Lessons Learned
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== =. -... Causes e Fittingsmismatched Failure to Self-Check Corrective Actions Guidelines forinstallation ofTemporaryInstrumentation PersonalAccountability Critique / Lessons Learned O Training + PersonnelErrorReduction + TechnicalStaffandManager Trainingincludes Lessons Learned Desig Review .~ ..E m. ........-.m. ...m.,..~ e .s.
-t 9 9 -i \\ 5 INDEPENDENT VERIFICATION o Several recent events -l t o Significance c o Several plant organizations involved -l -i:; o Implementation errors i i i o Corrective action -I r ,a L -h I l t ~ h I
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in Q p s ~. CORRECTIVE ACTION L I o Corrective Action Associated With Each Event Accountability and work group meetings conducted. o o Equipment (field) verifications CO and Halon system actuators verified 2 properly installed. Fire Protection procedures performed were reviewed. Panet/ Rack jumper walkdown. scc /^ s. ; t., u. J t,. ,.</ c,., t,. G - > e. f. '- System lineup verifications performed. f.m#.:-. c %,rd o Corrective Action to Prevent Recurrence o Fermi documents examined for consistency. o New procedure written. Training on program requirements through new procedure. o .:l eEi a., ub L.. ./ .i,.&isp,J, a n.,., f, f' ,J $F* f5 e' y-e.Je /..i . /.., 1,, w.T ) _~. ',, w, ~ L,, ,,/ l /
O ) 4 $g D 9-e REORGAXIZATION AND RESTRUCTERIXG OF XUCLEAR GEXERATIOX e
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MISSION STATEMENT O Reorganize and restructure Nuclear Generation to facilitate best-in-class organizational effectiveness, right skilling, increase supervisory span of control and improve communication within the organization. O'
d' Y ,, y OVERVIEW OF Ricar SKILLING SELECTION PROCESS
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Develop position summary incorporating: Core skills UFSAR requirements Training' qualifications Job specific skills
- - Candidate identification
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- - Candidate selection -
L. Review of candidate selection by: ~ Review board 1 EEO. LLegal Selection process Nuclear Generation Management Team' k e....'- s..- E-.. r *.... e.. a i ,e+. w e w i #.4 .w.w.e+-
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.~ 1 EFFORTS TO ASSURE A SUCCESSFUL PROCESS Monitoring, evaluating, and updating UFSAR organization description charts Continual monitoring and updating of Management Policy and Directives Continued update of NRC Quality Assurance overview = 4 a
RESULTS of XQA OVERSIGHT of STAFFING TRANSTION PROGRAM Ongoing Specific Oversight of STP g - Performance -- Qualifications of personnel - Changes to QA Program - Position Descriptions - Interviews of Personnelin new roles- - Approxiamtely 500 Manhours devoted to this effort to date Effects of STP added to scope of all Audits 9 - SpecialReorganization Audit planned-All NQA personnel monitoring for STP-caused problems as perform inspec-tion and surveillance activities Revisions to QA Program'were made as organization and responsibilities changed
m TYPICAL PROBLEMS IDENTIFIED - Documentation of Qualification Requirements being met not in accordance g with procedure - Re\\latory Qualification Requirements established above Tech Spec and QA Program commitments and inconsister.t requirements - New supervisor not aware of responses due to NQA for Audit / Surveillance observations - Slow pace of revision to Implementing Procedures - Work phone numbers not updated in Emergency Notification Duty Roster 9 - Communication problems Problems being identified to responsible individuals and Senior Management and action is being taken. Oversight is continuing.
FINAL RESULTS of STAFFING TRANSITION
- 35 People took VSO
- One employe volunteered. for Corporate Skills Reserve g
- 67 people deselected and put in Corporate Skills Reserve effective 4/26/93 COMPLEMENT COMPARISON
- Approximately 1000 prior to Staffing Transition Program
- Approximately 200 represented employes
- Approximately 800 non-represented employes
- Less than 700 non-represented employes after Staffing Transition e
Program Staffing transition completed 4/23/93 Four weeks ahead of schedule due to some activities being completed in parallel. ..e.- e m-..
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