|
|---|
Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20207G5151999-06-0808 June 1999
Summary of 990422 Meeting with Ue & NRC Staff Re Electrosleeved Repaired SG Tubes During Beyond Design Basis Accidents.List of Meeting Attendees,Nrc Staff Meeting Presentation Matls & Ue Meeting Presentation Matls Encl
ML20205J6591999-04-0606 April 1999
Summary of 990318 Meeting with Union Electric & Framatome Technologies Re Electrosleeve Amend Application for Callaway Npp.List of Telcon Participants & Union Electric Fax with Callaway Probability Info Encl
ML20199G9871999-01-20020 January 1999
Summary of 981014 & 15 Meetings with WCNOC & Ue Re Proposed TS Amend That Supports Mod to Increase Sfp.List of Attendees & Summary of Each Topic Discussed Encl
ML20198M3111998-12-29029 December 1998
Summary of 981203 Meeting with Wolf Creek Nuclear Operating Co Re Amend Application Requesting Approval to Increase SFP Capacity at Wolf Creek & Callaway Plants.List of Attendees & Licensee Presentation Matl Encl
ML20248H0551998-06-0101 June 1998
Summary of 980513 Meeting W/Utils Re Proposed Amends to TSs to Support Planned Mods to Spent Fuel Pools at Plants
ML20217A0261998-03-18018 March 1998
Summary of 980129 Meeting W/Util to Discuss Licensee Interpretation of Allowance to Perform TS Required Shutdown Surveillance Testing While at Power.Oversize Drawings Encl
ML20198H5661997-12-31031 December 1997
Summary of 971209 Meeting W/Union Electric & Framatome Technologies,Inc in Rockville,Md Re Electrosleeving Process in Support of Union Electric Proposed TS Amend That Would Allow Electrosleeving of SG Tubes at Plant
ML20198G2211997-12-22022 December 1997
Summary of 971120 Meeting W/Util in Rockville,Md,Re Electrosleeving Process in Support of UE-proposed TS Amend That Would Allow Electrosleeving of Steam Generator Tubes at Callaway Plant.List of Attendees Encl
ML20199F2691997-11-19019 November 1997
Summary of 971008 & 09 Meetings W/Union Electric & Westinghouse Electric Corp to Discuss Effects of Axial Offset Anomaly Currently Being Experienced by Plant.List of Attendees & non-proprietary Versions of Handout Matls Encl
ML20217E0411997-09-24024 September 1997
Summary of 970813 Meeting W/Une & Framatome Technologies Re Electrosleeving Process in Support of UNE-proposed TS Amend That Would Allow Electrosleeving of SG Tubes at Plant.List of Attendees & Meeting Handout Matl Encl
ML20149G3231997-07-18018 July 1997
Summary of 970506 & 07 Meetings W/Listed Attendees in Toronto,Ontario,Canada to Discuss FTI SG Electrosleeving Process.Nonproprietary Version of Handout Matl Presented at Meeting Encl
ML20149H2751997-07-17017 July 1997
Summary of 970513-15 Meeting W/Util in Lynchburg,Va Re Licensee Steam Generator Electrosleeving Process.Meeting Attendees & Meeting Slides Encl
ML20147G8311997-03-27027 March 1997
Summary of 970220 Meeting W/Util Re June 1997 Operational Safeguards Response Evaluation at Plant
ML20133P8681997-01-22022 January 1997
Summary of 970114 Meeting W/Util Re Future Plans for Core Reload Design Analysis for Plant.List of Attendees & Matls Used in Presentation Encl
ML20059G5761994-01-12012 January 1994
Summary of 931209 Meeting W/Representatives of Util & Licensee Contractors to Discuss Planned Elimination of SG Hydraulic Snubbers at Plants.List of Attendees & Licensee Presentation Handout Encl
ML20059F9021994-01-11011 January 1994
Summary of 931208 Meeting W/Representatives of Wcnoc,Une & Licensees Contractor to Discuss TS Changes Being Considered by Licensees.List of Attendees Encl
ML20149D6051993-09-15015 September 1993
Summary of 930708 Region III Annual Training Managers Conference in Glen Ellyn,Il.Purpose of Meeting to Provide Forum for Discussion on Rev 7 of Operator Licensing Examiner Stds & to Discuss Operator Licensing Issues
ML20128F0731993-02-0808 February 1993
Summary of 921215 Meeting W/Util in Rockville,Md Re Deletion or Modification of Boron Dilution Mitigation Sys.List of Attendees & Viewgraphs Encl
ML20246J7081989-07-12012 July 1989
Trip Rept of 890619-23 Visit to Plant & Training for Unescorted Site Access to Nonradiological & Radiological Areas.Training Completed by Passing Two Exams
ML20246L7281989-05-0505 May 1989
Summary of 890503 Meeting W/Util in Rockville,Md Re Containment Vessel Structural Integrity Tech Specs for Plants.List of Attendees & Licensee Presentation Encl
ML20235R2211989-02-23023 February 1989
Summary of 890214 Meeting W/Util & Westinghouse Re Licensee Reload Application.Licensee Proposed Tech Spec Changes Include Increased Peaking Factors,Positive Moderator Temp Coefficient & Increased Boron Concentration.Viewgraphs Encl
ML20153G5481988-05-0404 May 1988
Summary of 880427 Telcon W/Utils in Region III Re Personnel Changes,Follow Up on Previous Items,Items of Interest from Sites & New Items
ML20151N4711988-04-13013 April 1988
Summary of 880407 Meeting W/Util & Westinghouse Re Reload for Cycle 4.Meeting Attendees & Nonproprietary Presentation Encl
ML20148P5881988-04-0101 April 1988
Summary of 880316 Meeting W/Utils Re Containment Tendon Tech Specs for Facilities.Attendance List & Licensees Presentation Encl
ML20148H6621988-01-15015 January 1988
Summary of Operating Reactors Events Meeting 88-02 on 880112 Re Events Which Occurred Since Last Meeting on 880105.List of Attendees,Significant Elements of Events & Tabulation of long-term Followup Assignments to Be Completed Encl
ML20236P2841987-11-0505 November 1987
Summary of Operating Reactors Events Meeting 87-38 on 871103.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20236K8011987-11-0202 November 1987
Summary of 871023 Meeting W/Util Re Stuck Reactor Vessel Head Closure Bolts at Plant.Util Requested to Submit Analysis of Three Adjacent Bolts & Listed Commitments, Including Strict Leakage Limit on Vessel Flange
ML20236A4901987-10-14014 October 1987
Summary of 871006 Meeting W/Util & Westinghouse to Discuss Transition Core Departure from Nucleate Boiling Ratio Penalty for Cycle 3 Operation.Attendee List,Util Ltr & Proprietary & Nonproprietary Viewgraphs Encl.Record Copy
ML20236A4861987-10-14014 October 1987
Summary of 871006 Meeting W/Util & Westinghouse to Discuss Transition Core Departure from Nucleate Boiling Ratio Penalty for Cycle 3 Operation.Attendee List,Util Ltr & Proprietary & Nonproprietary Viewgraphs Encl
ML20237L1111987-08-28028 August 1987
Summary of Operating Reactors Events Meeting 87-28 on 870825 Re Events Which Occurred Since 870818 Meeting.List of Attendees & Significant Elements Encl
ML20213F8021987-05-0404 May 1987
Summary of 870429 Meeting W/Util & Westinghouse Re Reload for Cycle 3 & Power Uprating Amend Requests.List of Attendees & Viewgraphs Encl
ML20212F2921986-12-30030 December 1986
Summary of Operating Reactors Events Meeting 86-45 on 861222 Re Events Which Occurred Since Last Meeting on 861215.List of Attendees & Significant Elements of Events Discussed Encl
ML20211G7781986-06-13013 June 1986
Summary of Operating Reactor Events Meeting 86-19 on 860609. List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20154K2171986-03-0505 March 1986
Summary of Allegation Review Board 860210 Meeting.Listed Actions to Close Allegations RIII-86-A-002,RIII-86-A-0007, RIII-86-A-011,RIII-85-A-0188,RIII-85-A-0208 & RIII-86-A-003 Agreed Upon
ML20138J8441985-12-12012 December 1985
Summary of 851205 Meeting W/Util & Westinghouse Re 851115 Reload Submittal for Cycle 2.Non-LOCA Transient Analysis, LOCA Analysis,Tech Spec Changes & Radiological Consequences Discussed.Viewgraphs & List of Attendees Encl
ML20136G9081985-11-15015 November 1985
Summary of 850522 Meeting W/Kansas Gas & Electric Co,Union Electric Co & Snupps in Bethesda,Md Re Snupps Spds.List of Attendees & Proposed Agenda Encl
ML20138R6711985-11-0707 November 1985
Summary of 851105 Meeting W/Util & Snupps at Site Re Proposed Mods to Low Temp Overpressure Protection Sys. Attendee List & Slides Used During Presentation Encl
ML20141E5521985-09-26026 September 1985
Summary of ACRS Subcommittee on Reactor Operations 850910 Meeting in Washington,Dc to Discuss Recent Operating Occurrences.Fr Notice,Meeting Schedule & List of Meeting Slides Encl
ML20209G6871985-09-0909 September 1985
Summary of Operating Reactor Events Meeting 85-14 on 850826 to Brief Director & Div Directors on Events Which Occurred Since 850813 Meeting.Computer Printout of 1985 Operating Reactor Events Meeting Topics to Date Encl
IA-85-160, Trip Rept of Site Visit During Wk of 831031 Re Physical Arrangement & Installation of Electrical,Instrumentation & Control Equipment.Compliance W/Nrc Design Criteria Confirmed1984-04-13013 April 1984
Trip Rept of Site Visit During Wk of 831031 Re Physical Arrangement & Installation of Electrical,Instrumentation & Control Equipment.Compliance W/Nrc Design Criteria Confirmed
ML20127B5101984-04-13013 April 1984
Trip Rept of Site Visit During Wk of 831031 Re Physical Arrangement & Installation of Electrical,Instrumentation & Control Equipment.Compliance W/Nrc Design Criteria Confirmed
ML20054J0301982-06-17017 June 1982
Summary of 820430 Meeting W/Utils & Bechtel in Bethesda,Md Re Alternate Shutdown Panel & Related Fire Protection
1999-06-08
[Table view]
Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20207G5151999-06-0808 June 1999
Summary of 990422 Meeting with Ue & NRC Staff Re Electrosleeved Repaired SG Tubes During Beyond Design Basis Accidents.List of Meeting Attendees,Nrc Staff Meeting Presentation Matls & Ue Meeting Presentation Matls Encl
ML20205J6591999-04-0606 April 1999
Summary of 990318 Meeting with Union Electric & Framatome Technologies Re Electrosleeve Amend Application for Callaway Npp.List of Telcon Participants & Union Electric Fax with Callaway Probability Info Encl
ML20199G9871999-01-20020 January 1999
Summary of 981014 & 15 Meetings with WCNOC & Ue Re Proposed TS Amend That Supports Mod to Increase Sfp.List of Attendees & Summary of Each Topic Discussed Encl
ML20198M3111998-12-29029 December 1998
Summary of 981203 Meeting with Wolf Creek Nuclear Operating Co Re Amend Application Requesting Approval to Increase SFP Capacity at Wolf Creek & Callaway Plants.List of Attendees & Licensee Presentation Matl Encl
ML20248H0551998-06-0101 June 1998
Summary of 980513 Meeting W/Utils Re Proposed Amends to TSs to Support Planned Mods to Spent Fuel Pools at Plants
ML20217A0261998-03-18018 March 1998
Summary of 980129 Meeting W/Util to Discuss Licensee Interpretation of Allowance to Perform TS Required Shutdown Surveillance Testing While at Power.Oversize Drawings Encl
ML20198H5661997-12-31031 December 1997
Summary of 971209 Meeting W/Union Electric & Framatome Technologies,Inc in Rockville,Md Re Electrosleeving Process in Support of Union Electric Proposed TS Amend That Would Allow Electrosleeving of SG Tubes at Plant
ML20198G2211997-12-22022 December 1997
Summary of 971120 Meeting W/Util in Rockville,Md,Re Electrosleeving Process in Support of UE-proposed TS Amend That Would Allow Electrosleeving of Steam Generator Tubes at Callaway Plant.List of Attendees Encl
ML20199F2691997-11-19019 November 1997
Summary of 971008 & 09 Meetings W/Union Electric & Westinghouse Electric Corp to Discuss Effects of Axial Offset Anomaly Currently Being Experienced by Plant.List of Attendees & non-proprietary Versions of Handout Matls Encl
ML20217E0411997-09-24024 September 1997
Summary of 970813 Meeting W/Une & Framatome Technologies Re Electrosleeving Process in Support of UNE-proposed TS Amend That Would Allow Electrosleeving of SG Tubes at Plant.List of Attendees & Meeting Handout Matl Encl
ML20149G3231997-07-18018 July 1997
Summary of 970506 & 07 Meetings W/Listed Attendees in Toronto,Ontario,Canada to Discuss FTI SG Electrosleeving Process.Nonproprietary Version of Handout Matl Presented at Meeting Encl
ML20149H2751997-07-17017 July 1997
Summary of 970513-15 Meeting W/Util in Lynchburg,Va Re Licensee Steam Generator Electrosleeving Process.Meeting Attendees & Meeting Slides Encl
ML20147G8311997-03-27027 March 1997
Summary of 970220 Meeting W/Util Re June 1997 Operational Safeguards Response Evaluation at Plant
ML20133P8681997-01-22022 January 1997
Summary of 970114 Meeting W/Util Re Future Plans for Core Reload Design Analysis for Plant.List of Attendees & Matls Used in Presentation Encl
ML20059G5761994-01-12012 January 1994
Summary of 931209 Meeting W/Representatives of Util & Licensee Contractors to Discuss Planned Elimination of SG Hydraulic Snubbers at Plants.List of Attendees & Licensee Presentation Handout Encl
ML20059F9021994-01-11011 January 1994
Summary of 931208 Meeting W/Representatives of Wcnoc,Une & Licensees Contractor to Discuss TS Changes Being Considered by Licensees.List of Attendees Encl
ML20149D6051993-09-15015 September 1993
Summary of 930708 Region III Annual Training Managers Conference in Glen Ellyn,Il.Purpose of Meeting to Provide Forum for Discussion on Rev 7 of Operator Licensing Examiner Stds & to Discuss Operator Licensing Issues
ML20128F0731993-02-0808 February 1993
Summary of 921215 Meeting W/Util in Rockville,Md Re Deletion or Modification of Boron Dilution Mitigation Sys.List of Attendees & Viewgraphs Encl
ML20246L7281989-05-0505 May 1989
Summary of 890503 Meeting W/Util in Rockville,Md Re Containment Vessel Structural Integrity Tech Specs for Plants.List of Attendees & Licensee Presentation Encl
ML20235R2211989-02-23023 February 1989
Summary of 890214 Meeting W/Util & Westinghouse Re Licensee Reload Application.Licensee Proposed Tech Spec Changes Include Increased Peaking Factors,Positive Moderator Temp Coefficient & Increased Boron Concentration.Viewgraphs Encl
ML20153G5481988-05-0404 May 1988
Summary of 880427 Telcon W/Utils in Region III Re Personnel Changes,Follow Up on Previous Items,Items of Interest from Sites & New Items
ML20151N4711988-04-13013 April 1988
Summary of 880407 Meeting W/Util & Westinghouse Re Reload for Cycle 4.Meeting Attendees & Nonproprietary Presentation Encl
ML20148P5881988-04-0101 April 1988
Summary of 880316 Meeting W/Utils Re Containment Tendon Tech Specs for Facilities.Attendance List & Licensees Presentation Encl
ML20148H6621988-01-15015 January 1988
Summary of Operating Reactors Events Meeting 88-02 on 880112 Re Events Which Occurred Since Last Meeting on 880105.List of Attendees,Significant Elements of Events & Tabulation of long-term Followup Assignments to Be Completed Encl
ML20236P2841987-11-0505 November 1987
Summary of Operating Reactors Events Meeting 87-38 on 871103.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20236K8011987-11-0202 November 1987
Summary of 871023 Meeting W/Util Re Stuck Reactor Vessel Head Closure Bolts at Plant.Util Requested to Submit Analysis of Three Adjacent Bolts & Listed Commitments, Including Strict Leakage Limit on Vessel Flange
ML20236A4901987-10-14014 October 1987
Summary of 871006 Meeting W/Util & Westinghouse to Discuss Transition Core Departure from Nucleate Boiling Ratio Penalty for Cycle 3 Operation.Attendee List,Util Ltr & Proprietary & Nonproprietary Viewgraphs Encl.Record Copy
ML20236A4861987-10-14014 October 1987
Summary of 871006 Meeting W/Util & Westinghouse to Discuss Transition Core Departure from Nucleate Boiling Ratio Penalty for Cycle 3 Operation.Attendee List,Util Ltr & Proprietary & Nonproprietary Viewgraphs Encl
ML20237L1111987-08-28028 August 1987
Summary of Operating Reactors Events Meeting 87-28 on 870825 Re Events Which Occurred Since 870818 Meeting.List of Attendees & Significant Elements Encl
ML20213F8021987-05-0404 May 1987
Summary of 870429 Meeting W/Util & Westinghouse Re Reload for Cycle 3 & Power Uprating Amend Requests.List of Attendees & Viewgraphs Encl
ML20212F2921986-12-30030 December 1986
Summary of Operating Reactors Events Meeting 86-45 on 861222 Re Events Which Occurred Since Last Meeting on 861215.List of Attendees & Significant Elements of Events Discussed Encl
ML20211G7781986-06-13013 June 1986
Summary of Operating Reactor Events Meeting 86-19 on 860609. List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20154K2171986-03-0505 March 1986
Summary of Allegation Review Board 860210 Meeting.Listed Actions to Close Allegations RIII-86-A-002,RIII-86-A-0007, RIII-86-A-011,RIII-85-A-0188,RIII-85-A-0208 & RIII-86-A-003 Agreed Upon
ML20138J8441985-12-12012 December 1985
Summary of 851205 Meeting W/Util & Westinghouse Re 851115 Reload Submittal for Cycle 2.Non-LOCA Transient Analysis, LOCA Analysis,Tech Spec Changes & Radiological Consequences Discussed.Viewgraphs & List of Attendees Encl
ML20136G9081985-11-15015 November 1985
Summary of 850522 Meeting W/Kansas Gas & Electric Co,Union Electric Co & Snupps in Bethesda,Md Re Snupps Spds.List of Attendees & Proposed Agenda Encl
ML20138R6711985-11-0707 November 1985
Summary of 851105 Meeting W/Util & Snupps at Site Re Proposed Mods to Low Temp Overpressure Protection Sys. Attendee List & Slides Used During Presentation Encl
ML20141E5521985-09-26026 September 1985
Summary of ACRS Subcommittee on Reactor Operations 850910 Meeting in Washington,Dc to Discuss Recent Operating Occurrences.Fr Notice,Meeting Schedule & List of Meeting Slides Encl
ML20209G6871985-09-0909 September 1985
Summary of Operating Reactor Events Meeting 85-14 on 850826 to Brief Director & Div Directors on Events Which Occurred Since 850813 Meeting.Computer Printout of 1985 Operating Reactor Events Meeting Topics to Date Encl
ML20054J0301982-06-17017 June 1982
Summary of 820430 Meeting W/Utils & Bechtel in Bethesda,Md Re Alternate Shutdown Panel & Related Fire Protection
1999-06-08
[Table view] |
Text
. November 2,.1987
' Docket No. 50-483 LICENSEE: Union. Electric Company FACILITY: Callaway Plant
SUBJECT:
SUMMARY
OF MEETING WITH UNION ELECTRIC COMPANY REGARDING STUCK.
REACTOR' VESSEL HEAD CLOSURE BOLTS On October 23, 1987, the staff met with Union Electric Company regarding.the !
stuck reactor vessel head closure bolts at Callaway. . Meeting attendees are )
listed in Enclosure 1. Slides used during the presentations are in Enciosure 2. 1 At the staff's request, the licensee presented the sequence of events',. root; cause, corrective action, action to prevent ~ recurrence, and current plans.-
Included in the presentation were discussions on.the licensee'.s~ technical .
specification interpretation, 10 CFR 50.59 review and safety evaluation for Cycle 3 operation.
The staff agreed to allow the licensee to. enter modes 5, 4 and 3,. but. requested that the licensee formally submit their. safety analysis-for staff review and approval before. proceeding to criticality. In addition to the analysis regarding'.-
one closure bolt not fully tensioned, the staff requested an ~ analysis for three-adjacent closure bolts not fully tensioned. Additionally, the' staff requested that the licensee commit to: (1) a strict leakage limit on the: vessel flanger (i gpm or lower);. (2) report the results of the tensioning; and.(3) remove all>
stuck bolts at the next refueling. outage.-
. hl Thomas: WL Alexion, Project Manager:
, . Project Directorate III-3 Division'of Reactor Projects.
I
Enclosures:
As stated cc: See next page DISTRIBUTION:
(DocketrfilesdL NRC PDR Local PDR PDIII-3 r/f DWigginton
'TAlexion-
] :
! OGC-Bethesda l
! EJordan JPartlow-ACRS(10)
Office: LA/9QIII-3 PM/ PD I I-3 AD ,
Surname: PK 4zer .TA ex -DWigginton GF han 'i Datei , 10 /87 -/87 106 9 87' J6/4 /87 j' 9711090364 DR 871102 'l ADDCK 05000493 l
PDR j u
Mr. D. F. Schnell Ca'llaway Plant j Union Electric Company Unit No. I l cc:
Dr. J. O. Cermack Mr. Bart D. Withers '
CFA Inc. President and Chief I 4 Professional Dr., Suite 110 Executive Officer Gaithersburg, MD 20879 Wolf Creek Nuclear Operating Corporation Gerald Charnoff, Esq. P. O. Box 411 i gm
_._... Thomas A.,Bax_ter, .Burlington..Kansasc66839 _g.
.-m.H Potts ,Esq& W
. ... ._,... ._. . .s. ,
Shaw, Pittman, owbridge j
, 2300 N Street, N. W. Mr. Dan I. Bolef, President !
Washington, D. C. 20037 Kay Drey, Representative l Board of Directors Coalition: 1 Mr. T. P. Sharkey for the Environment Supervisor, Compliance St. Louis Region ]
Union Electric Company 6267' Delmar Boulevard j Post Office Box 620 University City, Missouri 63130 j Fulton, Missouri 65251 j
i U. S. Nuclear Regulatory Commission l l
Resident inspectors Office RR#1 j
l l Steedman, Missouri 65077 I
Mr. Alan C. Passweter, Manager Licensing and Fuels Union Electric Company f
Post Office Box 149 1 St. Louis, Missouri 63166 Manager - Electric Department j Missouri Public Service Consnission i 301 W. High Post Office Box 360 .
Jefferson City, Missouri 65102
']
Regional Administrator U. S. NRC, Region 111 l 799 Roosevelt Road l Glen Ellyn, Illinois 60137 Mr. Ronald A. Kucera, Deputy Director-Department of Natural Resources
( P. 0. Eox 176 1 Jefferson City, Missouri 65102 J
i b
-t
s &
ENCLOSURE 1 STUCK. HEAD CLOSURE BOLTS MEETING OCTOBER 22, 1987
]
ATTENDANCE LIST l
NAME ORGANIZATION ]1 D. Crutchfield NRC I
. . _ , @ Hplahan _ .. ... . -. - - - - -
- - = --NR L - - -
- i. - ww.smer num i J!s'REhirdson NRC D. Dilanni NRC L. Marsh NRC l C. Cheng NRC P. Vuo NRC-K. Wichman NRC R. Emch NRC 4 J. Hinds NRC 'l L. Wheeler NRC l T. Alexion NRC ]
' R. Johnson NRC' 1 A. Lee NRC. I C. Sellers NRC '!
A. Passwater R. Affolter UE UE l
W. Campbell UE T. Hermann ~UE W. Robinson UE L. Benson UE S. Abbott W W. Hielker CE
[
. . - -. . .n. !,
, ENCLOSURE 2-m.
I. INTRODUCTION II. SEQUENCE OF EVENTS A. REFUEL I OUTAGE J
, 1. STUD #7 COULD NOT BE REMOVED DURING REFUEL I. 'f !
- 2. STUD #7 WAS SEALED WITH A PROTECTIVE WATERPROOF CAP. Jf l' .,
l B. REFUEL II OUTAGE l i i n.a.mmanme - - mmmm.y. 4%gg 9g.,m.au a ,uaunmuu,.aw.w. - we muumumd e.4
- q
. ABOUT HALF THE STUDS CAME OUT VERY EASILY. ]
-q
. OF THE REMAINING HALF, ALL BUT SEVEN CAMEl0UT WITHOUT MUCH DIFFICULTY.-
. 'TWO STUDS (42, 53) CAME OUT USING'A SLUGGING' WRENCH, j
. FIVE STUDS STUCK- j
- 2 STUD WAS ATTEMPTED SUBSEQUENT TO REMOVING i f53. IT TURNED.0UT 4-5 INCHES' PRIOR TO' .
STICKING. WE DECIDED NOT TO GO FURTHER TO i PREVENT THREAD DAMAGE.- TURNED IT BACK'INTO I PRESENT POSITION.(4 INCHES OUT).
- 4, 5, 7 AND 9 ALL STUCK WHEN FIRST,TRIED TO
~
TURN OUT. . LIMITED FORCE WAS APPLIED WITH ')
SLUGGING WRENCH-BUT STUDS WOULD NOT TURN OUT. !
STUDS'WERE'LEFT IN,STUCKLPOSITION.- {
l
- 2. OPTIONS EVALUATED .j
~
l . REMOVE STUCK STUBS NOW OR LATER' 'i 1
- CONTACTED WESTINGHOUSE, CE,iB&W TO DETERMINE' 'l REMOVAL. CAPABILITIES.'ALL HAD CAPABILITY, BUT' COULD NOT SUPPORT FALL 1987 OUTAGE. ESTIMATED A SIX MONTH LEAD TIME TO PROCURE FLANGE INSERT. Lj EQUIPMENT. l
~
I l
CONTACTED OTHER PLANTS TO DETERMIFE HISTORY OR SIMILAR OCCURRENCES.- OTHERS HAVE HAD' STUCK
- STUDS. SOME HAVE CUT THEM OUT WITH SUCCESS.
SOME HAVE OR ARE OPERATING WITH STUCK STUDS
. ACTION TO. PREVENT ADDITIONAL STUCK STUDS DURING REFUEL III- ~I
- OBTAINED WESTINGHOUSE,,CE' SUPPORT TO' DETERMINE ROOT CAUSE AND CORRECTIVE' ACTIONS.NEEDED. ,
DECISION TO ADD; CLEANING; REPAIR ACTIVITY TO.
CRITICAL PATH SCHEDULE.
-- CLEANED, CAGED, TAPPED -AND.DLESSED STUD HOLES.- h
3 d
f
. .. v .
e-
.1 g- . - ~ III,.eROOT CAUSE -~~-- -- - - M " -"- *M i
i
, A. LUBRICANT l
DETERMINED TO BE EXCESSIVE. l l
B. TIGHT TIT I
- 1. GO-GAGE WAS NOT COMPLETELY EMPLOYED DURING CONSTRUCTION' E TO ELIMINATE FUTURE BINDING PROBLEMS. "
)
- 2. GO-GAGE WAS NOT VERIFIED DURING REFUEL I' OPERATIONS TO l ENSURE TOLERANCE. I
( <
C. INSTALLATION j INSTALLATION /kEMOVAL METHOD RESULTED IN TOO MUCH WEIGHT BEING APPLIED TO THE THREADS WHILE INSERTING. STUD IN
. HOLE.
I D. CLEANING ;
CURRENT INSPECTION / TESTING WITH GO-GAGE INDICATED (HREAD
~
LUBRICANT WAS BAKED 0N:AND WASN'T BEING REMOVED DDRING CLEANING PROCESS.
- i
>\
1 1 4
,t d >
. w.. . . ... . .. ._
IV. . CORRECTIVE ACTION
- )
A. LUBRICANT- j
]
LESS LUBRICANT EMPLOYED FOR FUTURE OPERATIONS. -]
1 B. TIGHT FIT CORE WAS'0FFLOADED, REFUELING POOL PUMPED:DOWN,' TEMP 0kARY SHIE 1
. -.~. LDING/
.. . PARTITIONS
. .. BUILT AND.ALL RPV STUD HOLES WERE:-
-_-..x= uma., .w, 1 s
1.- CLEANED.WITH MOTOR-OPERATED WIRE BRUSH.
).!
4
- 2. VISUAI.LY INSPECTED FOR GALI.ING'AND BURRS...
- 3. .GO-GAGE TESTED F0h GALLING, BURRS AND FIT ,
' TOLERANCES. J
- 4. HOLES CHASED WITH TAP TO ENSURE FREE OF INTERFERENCES IF DETERMINED UNACCEPTABLE BY:
CO-GAGE! 1 5.. RPV STUD HOLES WERE FILLED WITH HYDRAZINE.AND . ;
' DEMIN WATER HIXTURE JUST PRIOR TO PLUGGING.'AND , 4 FLOOD UP FOR CONTINUING REFUELINGj0PERATIONS.- 'J
- 6. ENSURED RPV HEAD' FLANGE HOLES WERELCLEAN TO ELIMINATE ANY THREAD DEBRIS' ACCUMULATION DURING' STUD INSERTION..
- 7. - REMOVED L 1j THREADLOF RPV FLANGE HOLE (N3)-
h
'(50.59 EVALUATION ~ ALLOWED 6.3; THREADS TO.BE-. M REMOVED). .
C. INSTALLATION MORE PRECISION VEIGHT-SCALES WEkE PROCURED'TO: ENSURE STUD' IS NOT LOWERED ONTO FLANGE THREADS UNTIL STUD IS.. '*
COMPLETELY LOWERED INTO HOLE.
D. CLEANING STUDS, NUTS AND HOLES CLEANED WITH WIRE' BRUSH AND. !
VERIFIED ACCEPTABLE WITH G0/NO-GO' GAGE. ,
- 1
'E. REMOVAL'0F $ TUCK RPV STUDS j
1 . .
q THE 5 STUCK RPV STUDS WILL-BE REMOVED DURING: REFUEL III'.- 1 THIS WILL ALLOW PROCUREMENT'0F INSERTS-AND DEDICATION'0F' COMMERCIAL RESOURCES TO PERFORM THE~ TASK.-
F. SAFETY EVALUATION ON RPV STUD / FLANGE BORIC ACID. EXPOSURE. >
50.59 EVALUATION PERFORMED..
'. .'( 5-i r
.I- .a ; , q'
. c a
i V. ACTION TO PREVENT RECURRENCE A. MOR'E PRECISE WEIGHT SCALE FOR. STUD INSERTION / REMOVAL.WILL BE UTILIZED. .;
B. CO/NO-GO GAGE WILL BE UTILIZED TO VERIFY TOLERANCES OF STUDS..
NUTS AND RPV FLANGE HOLES.
C. HYDRAZINE-DEMIN WATER WILL BE UTILIZED TO FILL RPV FLANGE:
HOLES PRIOR TO PLUGGING AND SUBSEQUENT FLOOD UP OF THE. ;
REFUELING POOL. i i
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VI. CURRENT FLANS A. CALLAWAY MODIFICATION PACKAGE '(DESIGN CHANGE)'OEVELOPED.TO ALLOW VESSEL TENSION WITH 53 STUDS.
B. TECHNICAL SPECIFICATION INTERPRETATION THAT " FULLY TENSIONED" REFERS TO THOSE STUDS REQUIRED TO BE TENSIONED TO HEET THE DESIGN.
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