Letter Sequence Meeting |
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MONTHYEARML20126E5351992-12-11011 December 1992 Forwards for Info,Draft Guidelines Developed by NRC Contractors for Conducting Audits of Safety Sys Software Verification & Validation Programs Project stage: Draft Other ML20126K4431992-12-30030 December 1992 Summary of 921216 Meeting W/Util in Rockville,Md Re Discussions on Design & Operation of Plant Hardened Wetwell Vent.List of Attendees & Meeting Agenda Encl Project stage: Meeting ML20126K4291992-12-30030 December 1992 Summary of 921201 Meeting W/Util in Rockville,Md Re Discussions on Proposed Upgrade of Refueling Floor & RB Radiation Monitoring Equipment,Including Proposed Revs to Plants TS Submitted in Ltr Project stage: Meeting ML20116C3541996-07-25025 July 1996 Responds to Verbal Requests by J Williams During 960118 Telephone Conference Concerning Rbvrm Equipment Project stage: Other 1992-12-30
[Table View] |
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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20205K4781999-04-0707 April 1999 Summary of 990204 Meeting with TVA Re Util Proposed risk-informed Inservice Insp Program for Browns Ferry Nuclear Plant,Unit 2 Piping & Solicit NRC Preliminary Comments on TVA Proposed Program ML20236Q6591998-07-10010 July 1998 Summary of 980709 Meeting W/Tva Re Browns Ferry Nuclear Plant License Amend Request for Power Uprate.List of Attendees & Request for Addl Info,Encl ML20248F1581998-05-27027 May 1998 Summary of 980520 Meeting W/Tva Re Browns Ferry Nuclear Plant License Amend Request for Power Uprate & Primarily Focused on Instrumentation Issues ML20247M9251998-05-18018 May 1998 Summary of 980508 Meeting W/Tva Re Operation of Plant, Status of Several Licensing Actions & Activities Including TVA Plan to Implement Improved STS by 980701 ML20217D4741998-04-20020 April 1998 Summary of 980414 Meeting W/Participants to Discuss Licensee Amend Request for Conversion of Custom TS to Improved Std TS ML20216E8591998-04-14014 April 1998 Summary of 980326 & 27 Meeting W/Util to Discuss Technical & Working Level Nature Re Conversion of Custom TS to Improved Std Ts.List of Attendees Encl IR 05000259/19970041998-02-0606 February 1998 Summary of 980126 Meeting W/Tennessee Valley Authority Re Resolution of Unresolved Issue 50-290/97-04-01 Identified in Insp Rept 50-259/97-04.List of Attendees Encl ML20141H9321997-07-29029 July 1997 Summary of 970722 Meeting W/Tva in Rockville,Md Re Plans for Submittal of License Amends Supporting Power Uprate & 24 Month Fuel Cycles for Mentioned Plant.List of Attendees & TVA Handout Encl ML20141G4061997-06-30030 June 1997 Summary of 970521 Meeting W/Tva in Rockville,Md Re Review of Section 3.3 of Improved TS for Mentioned Plant.List of Attendance & Comments Encl ML20137P3501997-04-0707 April 1997 Summary of 970327 Meeting W/Tva in Rockville,Md Re ECCS Suction Strainers Mod for Plant,Units 1,2 & 3.List of Attendees & Handouts Encl ML20129E5901996-10-24024 October 1996 Summary of 961016 Meeting W/Tva in Rockville,Md Re Recent TVA Efforts to Validate Info in Browns Ferry Updated Final Safety Analysis Rept Prior to Submittal of Periodic Update Planned for 961022.List of Attendees & Handouts Encl ML20129H1091996-10-0202 October 1996 Summary of 960926 Meeting W/Tva in Rockville,Md Re Recent Denial of Emergency TS Amend Request for Bfn.List of Attendees Encl ML20129G7761996-08-0909 August 1996 Summary of 432nd ACRS Meeting on 960612-14 Re Severe Accident Research & Draft Reg Guide DG-1047, Std Format & Content for Application to Renew Nuclear Power Plant Operating Licensees ML20129G6021996-06-26026 June 1996 Summary of 431st ACRS Meeting on 960523-25 Re Potential Ipe/ IPEEE Results to Compare Risk of Current Population of Plants W/Safety Goals,Resolution of Multiple Sys Responses Program Issues & Proposed Rule on Shutdown Operations ML20217D2601996-06-10010 June 1996 Summary of 960521 Meeting W/Listed Attendees Re Completion of Post Restart Issues & Lessons Learned from Restart Process ML18038B3511995-06-0606 June 1995 Trip Rept of 950514-16 Visit to Browns Ferry Nuclear Power Stations Re Blast Evaluation & Subsequent Vehicle Barrier Location ML20058G9441993-12-0707 December 1993 Summary of 931110 Meeting W/Tva in Rockville,Md Re TVA Plans to Improve Quality of Licensing Submittals for Bfn.List of Attendees & Handouts Encl ML20057D0761993-09-27027 September 1993 Summary of 930903 Meeting W/Util in Rockville,Md Re Ways Util Might Improve Quality & Completeness of Plant Licensing Submittals.List of Meeting Attendees & List of Specific Licensing Submittals Discussed During Meeting Encl ML20056F9221993-08-26026 August 1993 Summary of 930803 Meeting W/Util in Rockville,Md Re Proposed Cost Beneficial Security Program Revs at Browns Ferry Nuclear Plant.List of Attendees & Meeting Handouts Encl ML20056D9801993-07-30030 July 1993 Summary of 930720 Meeting W/Util in Rockville,Md to Discuss Plans & Schedule to Implement Improved STS at Plant.Meeting Attendees Listed in Encl 1 ML20056D8341993-05-26026 May 1993 Summary of Operator Reactors Event Meeting 93-18 on 930519 ML20126K4291992-12-30030 December 1992 Summary of 921201 Meeting W/Util in Rockville,Md Re Discussions on Proposed Upgrade of Refueling Floor & RB Radiation Monitoring Equipment,Including Proposed Revs to Plants TS Submitted in Ltr ML20126K4431992-12-30030 December 1992 Summary of 921216 Meeting W/Util in Rockville,Md Re Discussions on Design & Operation of Plant Hardened Wetwell Vent.List of Attendees & Meeting Agenda Encl ML20125D0341992-12-0202 December 1992 Summary of 921015 Meeting W/Util in Rockville,Md Re Util Plans for Conducting Expanded IPE for Plant.List of Attendees & Meeting Handouts Encl ML20058M4491990-08-0808 August 1990 Summary of 900727 Meeting W/Util on Site Re Plant Tour. Restart Status & Condition of Unit 2 Primary Focus of Site Tour.List of Attendees Encl ML20248E0351989-08-0202 August 1989 Summary of 890710,11 & 12 Meetings W/Util at Plant Site Re Electrical Issues,Including Cable Ampacity & Ac/Dc Electrical Distribution Necessary to Support Full Power Operation.Agenda,List of Attendees & Handouts Encl IR 05000259/19890101989-06-29029 June 1989 Summary of 890606 Meeting W/Util in Rockville,Md Re Handling of Clay Pipe Issue & Condition Adverse to Quality Program, Per Findings in Insp Repts 50-259/89-10,50-260/89-10 & 50-296/89-10.List of Attendees & Presentation Slides Encl ML20245K3021989-06-22022 June 1989 Summary of 890615 Meeting W/Util in Rockville,Md Re Proposed Tech Spec Change 251 Dealing W/Table 3.7.A, Primary Containment Isolation Valves ML20247M5061989-05-26026 May 1989 Summary of 890511 Meeting W/Util & Bechtel North American Power in Rockville,Md Re Cable Separation Issue.Tva Presented Results of Reverification Effort Re Data Used in 890314 Meeting.Attendance Roster & Meeting Transcript Encl ML20247K0901989-05-23023 May 1989 Summary of 890517 Meeting W/Inpo Re Similarities & Differences Between Performance Indicator Programs.Detailed Discussion Encl ML20247K1011989-05-16016 May 1989 Summary of 890517 Meeting W/Inpo in Bethesda,Md Re Similarities & Differences Between INPO & NRC Performance Indicators ML20245F2751989-04-24024 April 1989 Summary of 890420 Meeting W/Util in Rockville,Md Re Generic Ltr 88-01 Concerning RWCU Sys Piping Outside Drywell Penetration.List of Attendees & Slides Encl ML20245E0021989-04-21021 April 1989 Summary of 890406 Meeting W/Util at Plant Re Dcrdr Human Engineering Discrepancy Closure Status ML20248G9901989-04-0303 April 1989 Summary of 890315 Meeting W/Util in Rockville,Md Re Util Safe Shutdown Tech Spec Chronology.Licensee Also Discussed App R Implementation Methodology & Outlined Specific Safe Shutdown Program for Unit 2.List of Attendees & Info Encl ML20247E7221989-03-24024 March 1989 Summary of 890314 Meeting W/Util in Rockville,Md Re Presentation on Plant Cable Separation Issues.Util Has Not Yet Documented Approach for Cable Separation Resolution ML20247D0131989-03-22022 March 1989 Summary of 890105 Meeting W/Util in Rockville,Md Re Civil & Seismic Issues,Including Methodology to Address IE Bulletins 79-14 & 79-02.List of Meeting Attendees & Viewgraphs Encl NUREG-1061, Summary of 890217 Meeting W/Util in Rockville,Md Re Resolution of Open Civil/Seismic Issues for Plant.List of Attendees & Slide Presentation Encl1989-03-22022 March 1989 Summary of 890217 Meeting W/Util in Rockville,Md Re Resolution of Open Civil/Seismic Issues for Plant.List of Attendees & Slide Presentation Encl ML20247B3101989-03-22022 March 1989 Summary of 890113 Meeting W/Util in Rockville,Md Re Civil/ Seismic Open Issues.List of Participants & Slides Used in Licensee Presentation Encl ML20236D2021989-03-14014 March 1989 Summary of 890307 Meeting W/Licensee in Rockville,Md to Discuss Licensee Proposed Methodology for Cable Separation. Attendance Roster Listed in Encl 1 & Licensee Viewgraphs in Encl 2 ML20235V0641989-03-0101 March 1989 Summary of 890216 Meeting W/Util in Rockville,Md Re TVA Statistical Methodology on Electrical Cable Separation. Agenda & List of Attendees Encl ML20245H8011989-02-23023 February 1989 Summary of Operating Reactors Events Meeting 89-08 on 890222.Attendee List & Events Discussed & Significant Elements of Events Encl ML20235L8491989-02-15015 February 1989 Summary of 890201-03 & 06 Meetings at Site Re Electrical Cable Installation & Ampacity Issues & Action Plan for Closure.Attendance Rosters & List of Major Items Which TVA Is to Accomplish as Part of Resolution of Cable Issue Encl ML20196E7241988-12-0606 December 1988 Summary of 881130 Meeting W/Util in Rockville,Md Re Cable Separation.Attendance Roster & Viewgraphs Encl ML20154Q5581988-09-29029 September 1988 Summary of 880913 Meeting W/Util at Sequoyah Site to Discuss Browns Ferry Unit 2 Fuel Load.List of Attendees & Viewgraphs Encl ML20207J5411988-09-19019 September 1988 Summary of 880908-09 Meetings W/Util in Rockville,Md to Discuss Resolution of Ieb 79-14 Restart Issues ML20154A7791988-09-0101 September 1988 Summary of 880810 Meeting W/Util in Decatur,Al Re Diesel Generator Concerns Resulting from Restart Test Program.List of Attendees,Agenda & Related Info Encl ML20151Y6301988-08-19019 August 1988 Summary of 880811 Meeting W/Util in Rockville,Md Re Control Room Ventilation Sys.List of Meeting Attendees & Viewgraphs Encl ML20151S8671988-08-0909 August 1988 Summary of 880707 Meeting W/Util at Plant Site Re Fuel Load Issues & Power Ascension Plans.Viewgraphs,Agenda & List of Attendees Encl ML20151R6911988-08-0404 August 1988 Summary of 880721 Meeting W/Util in Rockville,Md Re Plant Electrical Cable Installation.List of Attendees & Viewgraphs Encl ML20151L4521988-07-27027 July 1988 Summary of 880621 Meeting W/Util in Rockville,Md Re Plant Restart Test Program.Meeting Roster,Agenda & Procedures Encl 1999-04-07
[Table view] Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20205K4781999-04-0707 April 1999 Summary of 990204 Meeting with TVA Re Util Proposed risk-informed Inservice Insp Program for Browns Ferry Nuclear Plant,Unit 2 Piping & Solicit NRC Preliminary Comments on TVA Proposed Program ML20236Q6591998-07-10010 July 1998 Summary of 980709 Meeting W/Tva Re Browns Ferry Nuclear Plant License Amend Request for Power Uprate.List of Attendees & Request for Addl Info,Encl ML20248F1581998-05-27027 May 1998 Summary of 980520 Meeting W/Tva Re Browns Ferry Nuclear Plant License Amend Request for Power Uprate & Primarily Focused on Instrumentation Issues ML20247M9251998-05-18018 May 1998 Summary of 980508 Meeting W/Tva Re Operation of Plant, Status of Several Licensing Actions & Activities Including TVA Plan to Implement Improved STS by 980701 ML20217D4741998-04-20020 April 1998 Summary of 980414 Meeting W/Participants to Discuss Licensee Amend Request for Conversion of Custom TS to Improved Std TS ML20216E8591998-04-14014 April 1998 Summary of 980326 & 27 Meeting W/Util to Discuss Technical & Working Level Nature Re Conversion of Custom TS to Improved Std Ts.List of Attendees Encl IR 05000259/19970041998-02-0606 February 1998 Summary of 980126 Meeting W/Tennessee Valley Authority Re Resolution of Unresolved Issue 50-290/97-04-01 Identified in Insp Rept 50-259/97-04.List of Attendees Encl ML20141H9321997-07-29029 July 1997 Summary of 970722 Meeting W/Tva in Rockville,Md Re Plans for Submittal of License Amends Supporting Power Uprate & 24 Month Fuel Cycles for Mentioned Plant.List of Attendees & TVA Handout Encl ML20141G4061997-06-30030 June 1997 Summary of 970521 Meeting W/Tva in Rockville,Md Re Review of Section 3.3 of Improved TS for Mentioned Plant.List of Attendance & Comments Encl ML20137P3501997-04-0707 April 1997 Summary of 970327 Meeting W/Tva in Rockville,Md Re ECCS Suction Strainers Mod for Plant,Units 1,2 & 3.List of Attendees & Handouts Encl ML20129E5901996-10-24024 October 1996 Summary of 961016 Meeting W/Tva in Rockville,Md Re Recent TVA Efforts to Validate Info in Browns Ferry Updated Final Safety Analysis Rept Prior to Submittal of Periodic Update Planned for 961022.List of Attendees & Handouts Encl ML20129H1091996-10-0202 October 1996 Summary of 960926 Meeting W/Tva in Rockville,Md Re Recent Denial of Emergency TS Amend Request for Bfn.List of Attendees Encl ML20129G7761996-08-0909 August 1996 Summary of 432nd ACRS Meeting on 960612-14 Re Severe Accident Research & Draft Reg Guide DG-1047, Std Format & Content for Application to Renew Nuclear Power Plant Operating Licensees ML20129G6021996-06-26026 June 1996 Summary of 431st ACRS Meeting on 960523-25 Re Potential Ipe/ IPEEE Results to Compare Risk of Current Population of Plants W/Safety Goals,Resolution of Multiple Sys Responses Program Issues & Proposed Rule on Shutdown Operations ML20217D2601996-06-10010 June 1996 Summary of 960521 Meeting W/Listed Attendees Re Completion of Post Restart Issues & Lessons Learned from Restart Process ML20058G9441993-12-0707 December 1993 Summary of 931110 Meeting W/Tva in Rockville,Md Re TVA Plans to Improve Quality of Licensing Submittals for Bfn.List of Attendees & Handouts Encl ML20057D0761993-09-27027 September 1993 Summary of 930903 Meeting W/Util in Rockville,Md Re Ways Util Might Improve Quality & Completeness of Plant Licensing Submittals.List of Meeting Attendees & List of Specific Licensing Submittals Discussed During Meeting Encl ML20056F9221993-08-26026 August 1993 Summary of 930803 Meeting W/Util in Rockville,Md Re Proposed Cost Beneficial Security Program Revs at Browns Ferry Nuclear Plant.List of Attendees & Meeting Handouts Encl ML20056D9801993-07-30030 July 1993 Summary of 930720 Meeting W/Util in Rockville,Md to Discuss Plans & Schedule to Implement Improved STS at Plant.Meeting Attendees Listed in Encl 1 ML20056D8341993-05-26026 May 1993 Summary of Operator Reactors Event Meeting 93-18 on 930519 ML20126K4431992-12-30030 December 1992 Summary of 921216 Meeting W/Util in Rockville,Md Re Discussions on Design & Operation of Plant Hardened Wetwell Vent.List of Attendees & Meeting Agenda Encl ML20126K4291992-12-30030 December 1992 Summary of 921201 Meeting W/Util in Rockville,Md Re Discussions on Proposed Upgrade of Refueling Floor & RB Radiation Monitoring Equipment,Including Proposed Revs to Plants TS Submitted in Ltr ML20125D0341992-12-0202 December 1992 Summary of 921015 Meeting W/Util in Rockville,Md Re Util Plans for Conducting Expanded IPE for Plant.List of Attendees & Meeting Handouts Encl ML20058M4491990-08-0808 August 1990 Summary of 900727 Meeting W/Util on Site Re Plant Tour. Restart Status & Condition of Unit 2 Primary Focus of Site Tour.List of Attendees Encl ML20248E0351989-08-0202 August 1989 Summary of 890710,11 & 12 Meetings W/Util at Plant Site Re Electrical Issues,Including Cable Ampacity & Ac/Dc Electrical Distribution Necessary to Support Full Power Operation.Agenda,List of Attendees & Handouts Encl IR 05000259/19890101989-06-29029 June 1989 Summary of 890606 Meeting W/Util in Rockville,Md Re Handling of Clay Pipe Issue & Condition Adverse to Quality Program, Per Findings in Insp Repts 50-259/89-10,50-260/89-10 & 50-296/89-10.List of Attendees & Presentation Slides Encl ML20245K3021989-06-22022 June 1989 Summary of 890615 Meeting W/Util in Rockville,Md Re Proposed Tech Spec Change 251 Dealing W/Table 3.7.A, Primary Containment Isolation Valves ML20247M5061989-05-26026 May 1989 Summary of 890511 Meeting W/Util & Bechtel North American Power in Rockville,Md Re Cable Separation Issue.Tva Presented Results of Reverification Effort Re Data Used in 890314 Meeting.Attendance Roster & Meeting Transcript Encl ML20247K0901989-05-23023 May 1989 Summary of 890517 Meeting W/Inpo Re Similarities & Differences Between Performance Indicator Programs.Detailed Discussion Encl ML20247K1011989-05-16016 May 1989 Summary of 890517 Meeting W/Inpo in Bethesda,Md Re Similarities & Differences Between INPO & NRC Performance Indicators ML20245F2751989-04-24024 April 1989 Summary of 890420 Meeting W/Util in Rockville,Md Re Generic Ltr 88-01 Concerning RWCU Sys Piping Outside Drywell Penetration.List of Attendees & Slides Encl ML20245E0021989-04-21021 April 1989 Summary of 890406 Meeting W/Util at Plant Re Dcrdr Human Engineering Discrepancy Closure Status ML20248G9901989-04-0303 April 1989 Summary of 890315 Meeting W/Util in Rockville,Md Re Util Safe Shutdown Tech Spec Chronology.Licensee Also Discussed App R Implementation Methodology & Outlined Specific Safe Shutdown Program for Unit 2.List of Attendees & Info Encl ML20247E7221989-03-24024 March 1989 Summary of 890314 Meeting W/Util in Rockville,Md Re Presentation on Plant Cable Separation Issues.Util Has Not Yet Documented Approach for Cable Separation Resolution ML20247B3101989-03-22022 March 1989 Summary of 890113 Meeting W/Util in Rockville,Md Re Civil/ Seismic Open Issues.List of Participants & Slides Used in Licensee Presentation Encl NUREG-1061, Summary of 890217 Meeting W/Util in Rockville,Md Re Resolution of Open Civil/Seismic Issues for Plant.List of Attendees & Slide Presentation Encl1989-03-22022 March 1989 Summary of 890217 Meeting W/Util in Rockville,Md Re Resolution of Open Civil/Seismic Issues for Plant.List of Attendees & Slide Presentation Encl ML20247D0131989-03-22022 March 1989 Summary of 890105 Meeting W/Util in Rockville,Md Re Civil & Seismic Issues,Including Methodology to Address IE Bulletins 79-14 & 79-02.List of Meeting Attendees & Viewgraphs Encl ML20236D2021989-03-14014 March 1989 Summary of 890307 Meeting W/Licensee in Rockville,Md to Discuss Licensee Proposed Methodology for Cable Separation. Attendance Roster Listed in Encl 1 & Licensee Viewgraphs in Encl 2 ML20235V0641989-03-0101 March 1989 Summary of 890216 Meeting W/Util in Rockville,Md Re TVA Statistical Methodology on Electrical Cable Separation. Agenda & List of Attendees Encl ML20245H8011989-02-23023 February 1989 Summary of Operating Reactors Events Meeting 89-08 on 890222.Attendee List & Events Discussed & Significant Elements of Events Encl ML20235L8491989-02-15015 February 1989 Summary of 890201-03 & 06 Meetings at Site Re Electrical Cable Installation & Ampacity Issues & Action Plan for Closure.Attendance Rosters & List of Major Items Which TVA Is to Accomplish as Part of Resolution of Cable Issue Encl ML20196E7241988-12-0606 December 1988 Summary of 881130 Meeting W/Util in Rockville,Md Re Cable Separation.Attendance Roster & Viewgraphs Encl ML20154Q5581988-09-29029 September 1988 Summary of 880913 Meeting W/Util at Sequoyah Site to Discuss Browns Ferry Unit 2 Fuel Load.List of Attendees & Viewgraphs Encl ML20207J5411988-09-19019 September 1988 Summary of 880908-09 Meetings W/Util in Rockville,Md to Discuss Resolution of Ieb 79-14 Restart Issues ML20154A7791988-09-0101 September 1988 Summary of 880810 Meeting W/Util in Decatur,Al Re Diesel Generator Concerns Resulting from Restart Test Program.List of Attendees,Agenda & Related Info Encl ML20151Y6301988-08-19019 August 1988 Summary of 880811 Meeting W/Util in Rockville,Md Re Control Room Ventilation Sys.List of Meeting Attendees & Viewgraphs Encl ML20151S8671988-08-0909 August 1988 Summary of 880707 Meeting W/Util at Plant Site Re Fuel Load Issues & Power Ascension Plans.Viewgraphs,Agenda & List of Attendees Encl ML20151R6911988-08-0404 August 1988 Summary of 880721 Meeting W/Util in Rockville,Md Re Plant Electrical Cable Installation.List of Attendees & Viewgraphs Encl ML20151L4521988-07-27027 July 1988 Summary of 880621 Meeting W/Util in Rockville,Md Re Plant Restart Test Program.Meeting Roster,Agenda & Procedures Encl ML20151H7341988-07-21021 July 1988 Summary of 880630 Meeting W/Util in Rockville,Md Re Criteria of IE Bulletin 79-14 Resolution at Facility 1999-04-07
[Table view] |
Text
1 3.. .eg
.$. ,,. f I% UNITED STATE s
- y b yq 1,g NUCLEAR REGULATORY COMMISSION
- . % ,-l WASHINGTON. D C. 20%$
.[.
- December 30, 1992 Docket Nos. 50-259, 50-260 and 50-296 LICENSEE: Tennessee Valley Authority FACILITY: Browns Ferry Nuclear Plant, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF THE DECEMBER 16, 1992 MEETING REGARDING DESIGN AND OPERATION OF THE BRCWNS FERRY HARDENED WETWELL VENT On December 16, 1992, representatives of the Tennessee Valley Authority (TVA) and the NRC staff met in Rockville, Maryland,to discuss the design and operation < the Browns Ferry Nuclear Plant (BFN) hardened wetwell vent.
Meeting attendees are listed in Enclosure 1. Handouts distributed by TVA are provided in Enclosure 2.
This meeting was held to follow up on a finding from a team inspection conducted at BFN which examined engineering design change packages. This finding noted that the hardened wetwell vent design included three drain valvor 41ch required local maw action when the vent is operated. The insp ,' n team was concerned these local actions may be prevented by-high radiation fields in the event of core damage, and, therefore, plant operators would be unable to perform actions called for in the Browns Ferry j emergency operating procedures.
TVA provided an outline of the vent design and plant layout, TVA plans to install the BFN Unit 2 vent during the refueling outage scheduled to begin on anuary 29, 1993. The BFN Units 1 and 3 vents will be installed prior to the restart of each reactor. TVA stated that the Browns Ferry vent is designed in L a, .ordance with the BWR Owners Group guidelines approved by the NRC. The team
! -inspection findings are consistent with this statement.
In response to the concern raised by the team inspection, TVA stated that they L will install float valves on two of the three drain lines. These float valves l will operate' passively, eliminating the need for local operator action on l these lines. The third drain valve is located within the plant stack. TVA is L evaluating whether or not this valve can be opened during an accident and left L
1 9301070125 921230 9 PDR ADOCK 0500 l P
open without increasing ground-level radiation source terms and associated doses beyond regulatory limits for design basis events. if this valve can be left open, the team's concern regarding local operator action will be resolved. TVA will inform the staff of the results of its evaluation.
Joseph F. Williams, Project Manager Project Directorate 11-4 Division of Reactor Projects - I/II
Enclosures:
- 1. List of Attendees
- 2. TVA Handouts cc w/ enclosures:
See next page
_ _ _ - - - -_- _____.__ - _-__-_ _ __- _ _ _ - _ _ _ - _ - . _ _ _ _ - _ - . _ --_- . _ _ . _ _ _ _ _ _ _ _ _ _ - _ _ _ - - . _ _ __.____-- _m
Vs . ..
l .
Browns Ferry Nuclear Plant CC*
Mr. John B. Waters, Chairman State Health Officer Tennessee Valley Authority Alabama Dept. of Public Health ET 12A 434 Monroe Street 400 West Summit Hill Drive Montgomery, Alabama 36130-1701 Knoxville, Tennessee 37902 Mr. J. R. Bynum, Vice President Regional Administrator Nuclear Operations U.S.N.R.C. Region II 3B Lookout Place 101 Marietta Street, N.W.
1101 Market Street Suite 2900 Chattanooga, Tennessee 37402-2801 Atlanta, Georgia 30323 Mr. Charles Patterson Site Licensing Manager Senior Resident Inspector Browns Ferry Nuclear Plant Browns Ferry Nuclear Plant
, Tennessee Valley Authority U.S.H.R.C.
P.O. Box 2000 Route 12, Box 637 Decatur, Alabama 35602 Athens, Alabama 35611 Mr. O. J. Zeringue, Vice President Site Quality Manager Browns Ferry Nuclear Plant Browns Ferry Nuclear Plant Tennessee Valley Authority Tennessee Valley Authority P.O. Box 2000 P. O. Box 2000 Decatur, Alabama 35602 Decatur, Alabama 35602 Mr. M. J. Burzynski, Manager Dr. Mark O. Medford Vice President Nuclear Licensing and Regulatory Affairs Tennessee Valley Authority SB Lookout Place Nuclear Assurance, Licensing and Fuels Chattanooga, Tennessee 37402-2801 3B Lookout Place 1101 Market Street TVA Representative Chattanooga, Tennessee 37402-2801 Tennessee Valley Authority 11921 Rockville Pike Suite 402 Rockville, Maryland 20852 General Counsel-Tennessee Valley Authority ET 11H 400 West Summit Hill Drive Knoxville, Tennessee 37902 Chairman, Limestone County Commission P.O. Box 188 Athens, Alabama 35611 1
, L .' s - .,
~
,- C ENCLOSURE 1 ATTENDEES DECEMBER 16, 1992 TVA/NRC MEETING BROWNS-FERRY. HARDENED WETWELL VENT DESIGN AND OPERATION MAM{. ORGANIZATION .
Joe Williams NRR/DRPE/PD 11-4 Joe McCarthy TVA Recovery Mechanical / Nuclear <
Engineering Manager, _
Greg Pierce TVA Browns Ferry Licensing Manager Ron Frahm NRR/DSSA/PSAB Lambros Lois NRR/DSSA/SRXB Jim Maddox TVA Browns Ferry-Engineering Manager f
Max Herrell TVA Browns Ferry Operations Manager Fred Hebdon NRR/ Director, PD 11-4 Jack Kudrick NRR/DSSA/SCSB Cheryl Beardslee NRR/DRPE/PD 11-4 Mohan Thadani NRR/DRPE/PD 11-4 Thierry' Ross NRR/DRPE/PD II-4 Matt Mueller TVA Mechanical / Nuclear Engineering Sam Malur MRR/DRIL/RSIB n
.f h
L
-' * - - - - , ,w w - __s_o--_____._.____.___.___.E_
LNCLU5URL Z. ,, .
AGENDA -
DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT TOPIC SP0KESMAN ,
BACKGROUND G. D. PIERCE 4
VENT PATH J. E. McCARTHY DESIGN GUIDELINES / CRITERIA J. E. McCARTHY ISSUES J. E. McCARTHY CURRENT ACTIVITIES J. E. McCARTHY CONCLUSION J. E. MADD0X t
DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT ,
l TOPIC SP0KESMAN BACKGROUND G. D. PIERCE
- GENERIC LETTER 89-16 ENCOURAGED UTILITIES TO VOLUNTARILY INSTALL-A HARDENED VENT
- TVA COMMITTED TO INSTALL THE HARDENED VENT ON UNIT 2 DURING THE'FIRST REFUELING OUTAGE AFTER RESTART TO REDUCE RISK ASSOCIATED WITH THE LOSS OF DECAY HEAT REMOVAL-SEQUENCE-
- TVA ALSO COMMITTED TO INSTALL THE HARDENED VENT BEFORE THE RESTART OF UNITS 1 AND 3
- THE HARDENED VENT WILL BE MODELED IN THE BFN PRA IN THE'NEXT UPDATE AFTER INSTALLATION COMPLETED b
I 1
DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT TOPIC SPOKESMAN VENT PATH J. E. McCARTHY
. : PROPOSED VENT PATH SHOWN ON THE ATTACHED FIGURE
. PROVIDES A DIRECT VENT PATH FROM THE TORUS TO AN EXHAUST POINT INSIDE THE PLANT STACK (ELEVATED ,
RELEASE)
. COMMON HEADER FOR UNITS 1, 2 AND 3
. SIZED FOR ONE UNIT VENTING AT A TIME 3
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DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT TOPIC SPOKESMAN DESIGN GUIDELINES / CRITERIA J. E. McCARTHY TVA'S DESIGN MEETS THE BWROG GUIDELINES -
DESIGNED TO REMOVE.1 PERCENT OF 105 PERCENT THERMAL POWER DESIGNED TO OPERATE UP TO A MAXIMUM TEMPERATURE OF 304*F AND 56 PSIG THE BFN HARDENED VENT VALVES ARE DC POWERED, PNEUMATICALLY OPERATED, AND ARE DESIGNED TO OPERATE DURING AN STATION BLACKOUT EVENT
. THE BFN HARDENED VENT IS AN ACTIVE SYSTEM; IT WILL NOT OPERATE PASSIVELY, WITHOUT OPERATOR ACTION'
. INADVERTENT.0PERATION 0F THE BFN HARDENED VENT IS PREVENTED BY KEY LOCK SWITCHES IN THE CONTROL ROOM FOR THE' ISOLATION VALVES 5
L DECEMBER 16, 1992 3 BROWNS FERRY HARDENED WETWELL VENT TOPIC SPOKESMAN DESIGN GUIDELINES / CRITERIA-(CONTINUED) J. E. McCARTHY -
. BFN VENT IS CAPABLE OF WITHSTANDING EXPECTED CONDITIONS ASSOCIATED WITH THE "TW" SEQUENCE WITHOUT LOSS OF FUNCTIONAL CAPABILITY BWROG AND TVA DID NOT ASSUME FAILED FUEL ASSOCIATED WITH THE "TW" SEQUENCE USES EXISTING RADIATION MONITORING NO IGNITION SOURCES IN THE PIPING 6
DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT i
TOPIC SPOKESMAN ISSUES -
J. E. McCARTHY
- CURRENT DESIGN REQUIRES MANUAL OPENING OF A DRAIN VALVE IN THE STACK PRIOR TO INITIATION OF VENTING
. CURRENT DESIGN REQUIRES MANUAL CYCLING OF LOW POINT DRAIN VALVES-PRIOR TO RE-USING THE VENT
. EMERGENCY'0PERATING INSTRUCTI0I45 ARE SYHPT0MATIC AND REQUIRE VENTING AT ELEVATED CONTAINMENT PRESSURES T0' PRECLUDE CONTAINMENT FAILURE REGARDLESS OF RADIOLOGICAL-CONDITIONS b
i T
DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT TOPIC SPOKESMAN CURRENT ACTIVITIES- - J. E. McCARTHY
. CALCULATIONS BEING PERFORMED TO DETERMINE IF STACK DRAIN VALVE CAN BE LEFT OPEN FOR DESIGN BASIS ACCIDENTS (GROUND LEVEL RELEASE)
. STACK DRAIN VALVE ISSUE MUST BE RESOLVED CONCURRENT WITH NRC REVIEW 0F CONTROL ROOM EMERGENCY VENTILATION SYSTEM'S CONFORMANCE TO GOC 19
. LOW POINT ORAINS VALVES TO BE REPLACED WITH FLOAT VALVES TO PRECLUDE MANUAL OPERATOR ACTION 8
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DECEMBER 16, 1992 BROWNS FERRY HARDENED WETWELL VENT TOPIC SPOKESMAN CONCLUSION -
J. E. MADDOX
. -BFN HARDENED VENT MEETS OR EXCEEDS THE BWR0G DESIGN CRITERIA
. BFN HAS BEEN PROACTIVE IN ADDRESSING NRC CONCERNS
. BFN WILL FULFILL ITS VOLUNTARY COMMITMENT TO INSTALL THE HARDENED VENT DURING THE UNIT 2 CYCLE 6 0UTAGE 9
.