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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20137F2351997-03-24024 March 1997
Summary of 970207 Meeting W/Listed Attendees in Rockville,Md to Discuss Nuclear Energy Inst Concerns Re Graded Quality Assurance Activities W/Volunteer Plants
ML20140H5981996-11-11011 November 1996
Summary of 435th Meeting of ACRS on 961009-12 Re Capability of NRC SCDAP/RELAP5 Code to Predict Temps & Flows in SGs Under severe-accident Conditions
ML20148B5761996-10-0404 October 1996
Summary of 434th Meeting of ACRS on 960912-13 Re Capability of SCAP/RELAP5 Code to Predict SG Temps During Severe Accidents
ML20058N7741993-12-0303 December 1993
Summary of Operating Reactors Events Meeting 93-45 on 931201
ML20057A5221993-07-28028 July 1993
Summary of Operating Reactors Events Meeting 93-27 on 930721
ML20056E2031993-06-15015 June 1993
Summary of Operating Reactors Events Meeting 93-20 on 930602
ML20128P8491993-02-18018 February 1993
Summary of Operating Reactors Events Briefing 93-05 on 930210
ML20217C5121991-07-0303 July 1991
Summary of Operating Reactors Events Meeting 91-12 on 910626
ML20058B7431990-10-19019 October 1990
Summary of 901010 Meeting W/Util & Consultants in Rockville, MD Re Licensee Plan to Pursue Reload Technology.List of Attendees Also Encl
ML20127J2961990-04-0606 April 1990
Trip Rept of Commissioner Curtiss 900201 Site Visit.Facility Has Undergone Radical Change in Mgt Personnel & Experiencing Problems W/High Attrition of Licensed Operators
ML20247R0161989-09-21021 September 1989
Summary of Operating Reactors Events Meeting 89-34 on 890920 to Brief Senior Managers & Regional Offices on Selected Events That Occured Since Last Meeting
ML20245G5421989-08-0303 August 1989
Summary of Operating Reactors Events Meeting 89-28 on 890802.List of Attendees,Events Discussed & Significant Elements of Events & Summaries of Reactor Scrams for Wks Ending 890723 & 30 Encl
ML20245D3881989-04-21021 April 1989
Summary of 890413 Meeting W/Control Components,Inc in Rockville,Md Re Operation of Atmospheric Dump Valves.Agenda, Slides Used During Meeting for Valve Description & Worst Case Model Assumptions Encl
ML20248K3761989-04-10010 April 1989
Summary of Operating Reactors Events Meeting 89-014 on 890405.List of Attendees,Events Discussed & Significant Elements of Events & Summary of Reactor Scrams for Wk Ending 890402 Encl
ML20247F1991989-03-24024 March 1989
Summary of Operating Reactors Events Meeting 89-12 on 890322.List of Attendees,Events Discussed & Significant Elements,Summary of Reactor Scrams & Comparison of Weekly Statistics W/Industry Averages for Wk Ending 890319 Encl
ML20247A8971989-03-16016 March 1989
Summary of Operating Reactors Events Meeting 89-11 on 890315.List of Attendees,Events Discussed & Significant Elements of Events & Four Events Identified for Input to NRC Performance Indicator Program & Summary of Scrams Encl
ML20246N9201989-03-16016 March 1989
Summary of Operating Reactors Events Meeting 89-010 on 890308.List of Attendees,Significant Events Identified for Input to NRC Performance Indicator Program & Summary of Reactor Scrams for Wk Ending 890305 Encl
ML20207G3861988-08-12012 August 1988
Summary of 880803 Meeting W/Util in Rockville,Md Re Facility Auxiliary Transformer Fire & Reactor Trip Event Initiated by Combination of Cracked Insulating Matl & Dirt Accumulation.Briefing Slides Encl
ML20151K6901988-07-18018 July 1988
Summary of Operating Reactors Events Meeting 88-28 on 880712.Viewgraphs & List of Attendees Encl
ML20196B6471988-06-17017 June 1988
Summary of 880531 Meeting W/Licensee in Rockville,Md Re Auxiliary Feedwater Pump Degradation Events.Viewgraphs Encl
ML20154M8471988-05-17017 May 1988
Summary of 880414 Meeting W/Util & BNL in Rockville,Md Re Monitoring Program for Reactor Coolant Pump Shafts.List of Attendees & Related Documents Encl
ML20236W3951987-11-25025 November 1987
Summary of 870909 Meeting W/Util in Bethesda,Md Re Proposed Changes to Organizational Structure for Plant Submitted by & Selected Issues Listed on Meeting Agenda.List of Attendees,Agenda & Licensee Viewgraphs Encl
ML20237G3891987-08-27027 August 1987
Summary of Operating Reactors Events Meeting 87-25 on 870804 Re Events That Occurred Since 870728 Meeting.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20238A1841987-08-24024 August 1987
Summary of 870812 Meeting W/Util in Phoenix,Az Re Concerns Generated During Assessment of Operating Performance of Units 1 & 2 in Consideration of Pending Licensing Decision for Unit 3.Attendee List & Viewgraphs Encl
ML20237J6901987-08-19019 August 1987
Summary of 870730 Meeting W/Util & C-E in Phoenix,Az Re Util 870629 Submittal of Cycle 2 Reload Analysis & Proposed Tech Spec Changes.List of Attendees,Licensee Draft Responses & Addl Questions Raised by NRC Encl
ML20236J7051987-07-29029 July 1987
Summary of 870707 Operating Reactors Events Meeting 87-21 W/ Nrr,Aeod,Res & Regional Ofcs Re Events Occurring Since 870630 Meeting.List of Attendees,Discussion of Events & Summary of Reactor Scrams Also Encl
ML20214T3801987-06-0303 June 1987
Summary of 870508 Meeting W/Util in Bethesda,Md Re Proposed Tech Spec Changes Re Revised Shutdown Margin Requirements & Variable Overpower Trip Setpoints.List of Attendees Encl
ML20215H7961987-05-0101 May 1987
Summary of 870422 Meeting W/Util in Bethesda,Md Re Schedules for Cycle 2 Core Reloads.List of Attendees & Viewgraphs Encl
ML20204D7201987-03-19019 March 1987
Summary of 870226 Meeting W/Util in Bethesda,Md Re Resolution of NRC 860910 Comments on Plant Emergency Operating Procedures.List of Attendees & Draft Util Response to NRC Comments Encl
ML20212J0331987-03-0202 March 1987
Summary of 870224 Meeting W/Util in Bethesda,Md Re Rept Concerning Licensee Evaluations Performed on Steam Generators at Facilities.List of Meeting Attendees Encl
ML20029A2931987-01-30030 January 1987
Trip Rept of 870120 Briefing Re Emergency Diesel Generator 3B Failure on 861223
ML20210T4031987-01-28028 January 1987
Summary of Operating Reactors Events Meeting 87-02 on 870112 of Events Which Occurred Since 870105.List of Attendees,Events Discussed & Summary of Events Encl
ML20210T3641987-01-16016 January 1987
Summary of Operating Reactors Events Meeting 87-02 on 870112 Re Events Which Occurred Since 870105.List of Attendees,Events Discussed & Summary of Events Encl
ML20207P6271987-01-12012 January 1987
Summary of Operating Reactor Events Meeting 86-46 on 861229.List of Attendees,Events Discussed & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl
ML20207B8501986-12-18018 December 1986
Summary of 861209 Meeting W/Util & Eg&G Idaho in Bethesda,Md Re SPDS Testing Program Results,Tech Spec Change Requests & Unit 3 Licensing Submittals.List of Attendees & Viewgraphs Encl
ML20211L2981986-12-0808 December 1986
Summary of 860828 Meeting W/Util,Bechtel,Drexel Univ & Franklin Research Ctr in Bethesda,Md Re Licensee Evaluation of Adequacy of Certain Masonry Walls at Plant.List of Attendees & Viewgraphs Encl
ML20214H5811986-11-19019 November 1986
Summary of 861028 Mgt Meeting W/Util in Phoeniz,Az Re NRC Concerns Generated During Assessment of Operating Performance for Units 1 & 2 & to Identify Needed Improvements Prior to Licensing of Unit 3.Viewgraphs Encl
ML20213F0641986-11-10010 November 1986
Summary of Operating Reactors Events Meeting 86-36 on 861020.List of Attendees,Events Discussed,Significant Events Data Sheet,Summary of Scrams W/Complications & Status of Previous & New Assignments Encl
ML20215E3001986-10-0606 October 1986
Summary of 860924 Meeting W/Util & C-E in Bethesda,Md Re Scope & Schedule for Reload Licensing Activities.Viewgraphs Encl
ML20215D1431986-10-0606 October 1986
Summary of 860820 Meeting W/Util in Bethesda,Md to Discuss Util 860619 Submittal Re Adequacy of Masonry Walls. List of Attendees,Agenda & Viewgraphs Encl
ML20205G9551986-08-13013 August 1986
Summary of Operating Reactors Events Meeting 86-28 on 860811 Re Briefing of Ofc Director,Div Directors & Representatives on Events Discussed at 860804 Meeting.List of Attendees & Viewgraphs Encl
ML20211Q6161986-07-23023 July 1986
Summary of Operating Reactor Events Meeting 86-25 on 860721 Re Events Since 860714 Meeting.List of Attendees,Discussion of Events & Status of Assignments Encl.Response Requested for Incomplete Assignments
ML20197F7721986-05-0808 May 1986
Summary of Operating Reactors Events Meeting 86-15 on 860505.List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20154N8751986-03-12012 March 1986
Summary of Operating Reactor Events 860310 Meeting 86-07 W/Ornl Re Events Occurring Since 860303 Meeting.Followup Review Assignments,Status of Previous Assignments,List of Attendees & Viewgraphs Encl
ML20154C9931986-02-24024 February 1986
Summary of Operating Reactors Event Meeting 86-04 on 860210.List of Attendees,Briefing & Reactor Scram Summaries Encl
ML20205J3851986-01-23023 January 1986
Summary of ACRS 309th Meeting on 860109-11 in Washington,Dc Re Final Design Approval for Gessar II Design & Proposed Rev 3 to Reg Guide 1.63, Electric Penetration Assemblies in Containment Structures for Nuclear Power Plants
ML20205H8791986-01-22022 January 1986
Summary of Operating Reactor Events Meeting 86-02 on 860116 in Bethesda,Md Re Events Since 860106 Meeting.List of Attendees,List of Significant Elements of Events,Assignments & Status of Previous Assignments Encl
ML20141F0461985-12-30030 December 1985
Summary of Operating Reactors Events Meeting 85-28 on 851223.List of Attendees & Viewgraphs Encl
ML20205J0421985-11-21021 November 1985
Summary of ACRS 307th Meeting on 851107-09 in Washington, DC Re Review of Application of Beaver Valley Power Station 2,EPA Stds for High Level Radwaste Repository & Investigation of Significant Incidents at Power Plants
ML20136C5141985-11-11011 November 1985
Summary of Operating Reactors Event Meeting 85-21 on 851028.List of Attendees,Events Discussed & Completion Dates Assigned Encl
1997-03-24
[Table view]
Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20137F2351997-03-24024 March 1997
Summary of 970207 Meeting W/Listed Attendees in Rockville,Md to Discuss Nuclear Energy Inst Concerns Re Graded Quality Assurance Activities W/Volunteer Plants
ML20140H5981996-11-11011 November 1996
Summary of 435th Meeting of ACRS on 961009-12 Re Capability of NRC SCDAP/RELAP5 Code to Predict Temps & Flows in SGs Under severe-accident Conditions
ML20148B5761996-10-0404 October 1996
Summary of 434th Meeting of ACRS on 960912-13 Re Capability of SCAP/RELAP5 Code to Predict SG Temps During Severe Accidents
ML20058N7741993-12-0303 December 1993
Summary of Operating Reactors Events Meeting 93-45 on 931201
ML20057A5221993-07-28028 July 1993
Summary of Operating Reactors Events Meeting 93-27 on 930721
ML20056E2031993-06-15015 June 1993
Summary of Operating Reactors Events Meeting 93-20 on 930602
ML20128P8491993-02-18018 February 1993
Summary of Operating Reactors Events Briefing 93-05 on 930210
ML20217C5121991-07-0303 July 1991
Summary of Operating Reactors Events Meeting 91-12 on 910626
ML20058B7431990-10-19019 October 1990
Summary of 901010 Meeting W/Util & Consultants in Rockville, MD Re Licensee Plan to Pursue Reload Technology.List of Attendees Also Encl
ML20247R0161989-09-21021 September 1989
Summary of Operating Reactors Events Meeting 89-34 on 890920 to Brief Senior Managers & Regional Offices on Selected Events That Occured Since Last Meeting
ML20245G5421989-08-0303 August 1989
Summary of Operating Reactors Events Meeting 89-28 on 890802.List of Attendees,Events Discussed & Significant Elements of Events & Summaries of Reactor Scrams for Wks Ending 890723 & 30 Encl
ML20245D3881989-04-21021 April 1989
Summary of 890413 Meeting W/Control Components,Inc in Rockville,Md Re Operation of Atmospheric Dump Valves.Agenda, Slides Used During Meeting for Valve Description & Worst Case Model Assumptions Encl
ML20248K3761989-04-10010 April 1989
Summary of Operating Reactors Events Meeting 89-014 on 890405.List of Attendees,Events Discussed & Significant Elements of Events & Summary of Reactor Scrams for Wk Ending 890402 Encl
ML20247F1991989-03-24024 March 1989
Summary of Operating Reactors Events Meeting 89-12 on 890322.List of Attendees,Events Discussed & Significant Elements,Summary of Reactor Scrams & Comparison of Weekly Statistics W/Industry Averages for Wk Ending 890319 Encl
ML20246N9201989-03-16016 March 1989
Summary of Operating Reactors Events Meeting 89-010 on 890308.List of Attendees,Significant Events Identified for Input to NRC Performance Indicator Program & Summary of Reactor Scrams for Wk Ending 890305 Encl
ML20247A8971989-03-16016 March 1989
Summary of Operating Reactors Events Meeting 89-11 on 890315.List of Attendees,Events Discussed & Significant Elements of Events & Four Events Identified for Input to NRC Performance Indicator Program & Summary of Scrams Encl
ML20207G3861988-08-12012 August 1988
Summary of 880803 Meeting W/Util in Rockville,Md Re Facility Auxiliary Transformer Fire & Reactor Trip Event Initiated by Combination of Cracked Insulating Matl & Dirt Accumulation.Briefing Slides Encl
ML20151K6901988-07-18018 July 1988
Summary of Operating Reactors Events Meeting 88-28 on 880712.Viewgraphs & List of Attendees Encl
ML20196B6471988-06-17017 June 1988
Summary of 880531 Meeting W/Licensee in Rockville,Md Re Auxiliary Feedwater Pump Degradation Events.Viewgraphs Encl
ML20154M8471988-05-17017 May 1988
Summary of 880414 Meeting W/Util & BNL in Rockville,Md Re Monitoring Program for Reactor Coolant Pump Shafts.List of Attendees & Related Documents Encl
ML20236W3951987-11-25025 November 1987
Summary of 870909 Meeting W/Util in Bethesda,Md Re Proposed Changes to Organizational Structure for Plant Submitted by & Selected Issues Listed on Meeting Agenda.List of Attendees,Agenda & Licensee Viewgraphs Encl
ML20237G3891987-08-27027 August 1987
Summary of Operating Reactors Events Meeting 87-25 on 870804 Re Events That Occurred Since 870728 Meeting.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20238A1841987-08-24024 August 1987
Summary of 870812 Meeting W/Util in Phoenix,Az Re Concerns Generated During Assessment of Operating Performance of Units 1 & 2 in Consideration of Pending Licensing Decision for Unit 3.Attendee List & Viewgraphs Encl
ML20237J6901987-08-19019 August 1987
Summary of 870730 Meeting W/Util & C-E in Phoenix,Az Re Util 870629 Submittal of Cycle 2 Reload Analysis & Proposed Tech Spec Changes.List of Attendees,Licensee Draft Responses & Addl Questions Raised by NRC Encl
ML20236J7051987-07-29029 July 1987
Summary of 870707 Operating Reactors Events Meeting 87-21 W/ Nrr,Aeod,Res & Regional Ofcs Re Events Occurring Since 870630 Meeting.List of Attendees,Discussion of Events & Summary of Reactor Scrams Also Encl
ML20214T3801987-06-0303 June 1987
Summary of 870508 Meeting W/Util in Bethesda,Md Re Proposed Tech Spec Changes Re Revised Shutdown Margin Requirements & Variable Overpower Trip Setpoints.List of Attendees Encl
ML20215H7961987-05-0101 May 1987
Summary of 870422 Meeting W/Util in Bethesda,Md Re Schedules for Cycle 2 Core Reloads.List of Attendees & Viewgraphs Encl
ML20204D7201987-03-19019 March 1987
Summary of 870226 Meeting W/Util in Bethesda,Md Re Resolution of NRC 860910 Comments on Plant Emergency Operating Procedures.List of Attendees & Draft Util Response to NRC Comments Encl
ML20212J0331987-03-0202 March 1987
Summary of 870224 Meeting W/Util in Bethesda,Md Re Rept Concerning Licensee Evaluations Performed on Steam Generators at Facilities.List of Meeting Attendees Encl
ML20210T4031987-01-28028 January 1987
Summary of Operating Reactors Events Meeting 87-02 on 870112 of Events Which Occurred Since 870105.List of Attendees,Events Discussed & Summary of Events Encl
ML20210T3641987-01-16016 January 1987
Summary of Operating Reactors Events Meeting 87-02 on 870112 Re Events Which Occurred Since 870105.List of Attendees,Events Discussed & Summary of Events Encl
ML20207P6271987-01-12012 January 1987
Summary of Operating Reactor Events Meeting 86-46 on 861229.List of Attendees,Events Discussed & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl
ML20207B8501986-12-18018 December 1986
Summary of 861209 Meeting W/Util & Eg&G Idaho in Bethesda,Md Re SPDS Testing Program Results,Tech Spec Change Requests & Unit 3 Licensing Submittals.List of Attendees & Viewgraphs Encl
ML20211L2981986-12-0808 December 1986
Summary of 860828 Meeting W/Util,Bechtel,Drexel Univ & Franklin Research Ctr in Bethesda,Md Re Licensee Evaluation of Adequacy of Certain Masonry Walls at Plant.List of Attendees & Viewgraphs Encl
ML20214H5811986-11-19019 November 1986
Summary of 861028 Mgt Meeting W/Util in Phoeniz,Az Re NRC Concerns Generated During Assessment of Operating Performance for Units 1 & 2 & to Identify Needed Improvements Prior to Licensing of Unit 3.Viewgraphs Encl
ML20213F0641986-11-10010 November 1986
Summary of Operating Reactors Events Meeting 86-36 on 861020.List of Attendees,Events Discussed,Significant Events Data Sheet,Summary of Scrams W/Complications & Status of Previous & New Assignments Encl
ML20215D1431986-10-0606 October 1986
Summary of 860820 Meeting W/Util in Bethesda,Md to Discuss Util 860619 Submittal Re Adequacy of Masonry Walls. List of Attendees,Agenda & Viewgraphs Encl
ML20215E3001986-10-0606 October 1986
Summary of 860924 Meeting W/Util & C-E in Bethesda,Md Re Scope & Schedule for Reload Licensing Activities.Viewgraphs Encl
ML20205G9551986-08-13013 August 1986
Summary of Operating Reactors Events Meeting 86-28 on 860811 Re Briefing of Ofc Director,Div Directors & Representatives on Events Discussed at 860804 Meeting.List of Attendees & Viewgraphs Encl
ML20211Q6161986-07-23023 July 1986
Summary of Operating Reactor Events Meeting 86-25 on 860721 Re Events Since 860714 Meeting.List of Attendees,Discussion of Events & Status of Assignments Encl.Response Requested for Incomplete Assignments
ML20197F7721986-05-0808 May 1986
Summary of Operating Reactors Events Meeting 86-15 on 860505.List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20154N8751986-03-12012 March 1986
Summary of Operating Reactor Events 860310 Meeting 86-07 W/Ornl Re Events Occurring Since 860303 Meeting.Followup Review Assignments,Status of Previous Assignments,List of Attendees & Viewgraphs Encl
ML20154C9931986-02-24024 February 1986
Summary of Operating Reactors Event Meeting 86-04 on 860210.List of Attendees,Briefing & Reactor Scram Summaries Encl
ML20205J3851986-01-23023 January 1986
Summary of ACRS 309th Meeting on 860109-11 in Washington,Dc Re Final Design Approval for Gessar II Design & Proposed Rev 3 to Reg Guide 1.63, Electric Penetration Assemblies in Containment Structures for Nuclear Power Plants
ML20205H8791986-01-22022 January 1986
Summary of Operating Reactor Events Meeting 86-02 on 860116 in Bethesda,Md Re Events Since 860106 Meeting.List of Attendees,List of Significant Elements of Events,Assignments & Status of Previous Assignments Encl
ML20141F0461985-12-30030 December 1985
Summary of Operating Reactors Events Meeting 85-28 on 851223.List of Attendees & Viewgraphs Encl
ML20205J0421985-11-21021 November 1985
Summary of ACRS 307th Meeting on 851107-09 in Washington, DC Re Review of Application of Beaver Valley Power Station 2,EPA Stds for High Level Radwaste Repository & Investigation of Significant Incidents at Power Plants
ML20136C5141985-11-11011 November 1985
Summary of Operating Reactors Event Meeting 85-21 on 851028.List of Attendees,Events Discussed & Completion Dates Assigned Encl
ML20141D3991985-11-0606 November 1985
Summary of ACRS Subcommittees on C-E Plants & Palo Verde 851105 Meeting in Washington,Dc to Review Operating Experience at Palo Verde Unit 1 in Consideration of Unit 2 License & Discuss Depressurization of C-E Plants
ML20198A4541985-10-30030 October 1985
Summary of Allegation Review Board 851029 Meeting Re Allegation RV-85-A-065.Initial Ltr Will Be Sent to Alleger Requesting Specific Safety Concerns.Allegation Will Be Considered Closed If No Response Received within 30 Days
1997-03-24
[Table view] |
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l
$ - ,'n NUCLEAR REGULATORY COMMISSION SL-0444
' '/ {o I ADVISORY COMMITTEE ON REACTOR SAFEGUARDS
- WASHINGTON, D. C. 20666 PDR4//[f)
November 11, 1996 i
i 1
The Honorable Shirley Ann Jackson Chairman U.S. Nuclear Regulatory Commission l Washington, D.C. 20555-0001
Dear Chairman Jackson:
J
SUBJECT:
SUMMARY
REPORT - FOUR HUNDRED THIRTY-FIFTH MEETING OF THE ADVISORY COMMITTEE ON REACTOR SAFEGUARDS, OCTOBER 9-12, 1 1996, AND OTHER RELATED ACTIVITIES OF THE COMMITTEE During its 435th meeting, October 9-12, 1996, the Advisory Committee on Reactor Safeguards ACRS) and completed the following repor(ts and discussed letter. several matters I REPORTS i Canability of the NRC SCDAP/REIAPS Code to Predict Temoeratures and Flows in Steam Generators Under Severe-Accident Conditions (Report to Shirley Ann Jackson, Chairman, NRC, from T.S. Kress, Chairman, ACRS, dated October 22, 1996.)
Thermal-Hydraulics Research Plan (Report to Shirley Ann Jackson, Chairman, NRC, from T.S. Kress, Chairman, ACRS, dated October 21, 1996.)
LETTER Draft Undate of Standard Review Plan. Chanter 7. " Instrumentation and Controls" (Letter to James M. Taylor, Executive Director for l Operations, NRC, from T.S. Kress, Chairman, ACRS, dated October 23, t 1996) \
HIGHLIGHTS OF KEY ISSUES CONSIDERED BY THE COMMITTEE l Meetina with the Advisory Committee on Nuclear Safety (Canada) D g
on October 9, 1996, the ACRS met with members of the Advisory Committee on Nuclear Safety (ACNS) of Canada and discussed several items of mutual interest, including the following:
63 MJ 51 4 961111 DESIGNATfD ORIGINAll N SL-0444 PDR.
M tified By _
x il.ll I.lil.III.I l.l .I.ITI.'I 'I.I.
t 1
y The Honorable Shirley Jackson 2
- 1. Risk-Informed. Performance-Based Reculation The Committee heard presentations by and held discussions with representatives of the ACNS regarding activities in the area of risk-informed, performance-based regulation. Specific discussions included definitions of risk-informed and perfor-mance-based concepts, regulatory. approaches to defense-in-depth, possible use of Safety Goals on a plant-specific basis, consideration of uncertainty in evaluating risk, differences in the levels for conducting probabilistic risk assessment (PRA) in the U.S. and Canada, and the possibility for risk evaluation to be an additional regulatory burden.
- 2. Plant Acina The Committee held discussions with the ACNS concerning plant aging issues. The Committee summarized -its reviews of NRC activities related to the aging of United States nuclear plant components. The ACNS summarized the status of the development of the Canadian regulatory document related to aging and associated industry activities.
- 3. Operator Trainina/ Simulator Use Representatives of the ACRS and Canadian ACNS discussed the issue of operator training and simulator use. It was apparent by the issues raised that both the U.S. and Canadian nuclear utilities employ similar training methods (i.e., the Systems Approach to Training -
SAT), and both are making use of simulators for operator training and licensing examinations.
ACRS member Dr. Apostolakis raised the issue of the impact of human errors on. plant safety, specifically, the concern with so-called circumvention behavior where people intentionally i violate procedures by taking "short-cuts." He noted that this behavior can be caused by the lack of a formal " safety culture." ACRS member Dr. Seale said that licensees must enforce the discipline associated with a proper safety culture.
- 4. Diaital Instrumentation and Control Systems The Committee heard Presentations by and held discussions with representatives of the ACNS regarding activities in the area of digital instrumentation and control (IEC) systems. The Committee discussed issues related to the independent studies being performed by the National Academy of Sciences / National Research Council (NAS/NRC) and expectation for integration of the NAS/NRC Phase 2 study insights into the proposed Standard Review Plan and associated regulatory guidance being developed by the NRC staff. They also discussed the history and
.i i :S ,
i f j The Honorable Shirley Jackson 3 4
experience of Canadian utilities and regulatory approaches for
- digital I&C systems.
j On October 10-12, 1996, the following topics were discussed with i the staff and other interested parties:
) 1. Status of NRC Stratacic Assessment and Rebaselinina Effort i The Deputy Executive Director for Nuclear Reactor Regulation,
, Regional. Operations and Research, briefed the Committee j regarding the status of the NRC strategic assessment and
! rebaselining effort. The strategic plan is a principal
! outcome of the strategic assessment and rebaselining initiated j by the NRC Chairman. The strategic plan will establish the framework that will guide future NRC decision-making and help
! the agency to meet its responsibility for protecting the i public health and safety and the environment. The staff i developed Direction-Setting Issue Papers on 16 issues with l Commission preliminary views, a strategic planning framework paper that explains how the issues relate to the NRC strategic plan and how the plan will be developed, and a stakeholder
- involvement process paper. All three documents have been made available to NRC internal and external stakeholders to provide j comments prior to November 15, 1996.
I
- Conclusion l This briefing was for information only; however, individual 4
ACRS Members may make comments on certain Direction-Setting l Issues prior to the closure of the comment period.
T l
i
- 2. Dioital Instrumentation and control Svsta==
i The Committee heard presentations by and held discussions with
! representatives of the NRC staff and its contractor, the i
Lawrence Livermore National Laboratory (LLNL), regarding the l draft update of Standard Review Plan (SRP) sections and Branch Technical Positions for the review of digital instrumentation and control (I&C) systems.
I t Based on this review and earlier discussions in March and May l 1996, the Committee concluded that it had no objection to the
, staff proposal to issue the draft SRP Chapter 7, Instrumen-
- tation and controls, for public comment. However, the ACRS plans to continue discussions with the NRC staff regarding issues identified in its. letter dated June 6, 1996. These i
issues include the level of detail provided in the regulatory guides, the balance in the guidance between the review of the
! design process and the assessment of the product, the linkage 3 between Chapter 7 and other SRP chapters, and graded approach-j es based on importance to safety.
i
J The Honorable Shirlay Jackson 4 Conclusion The Committee issued a letter to the Executive Director for Operations dated October 23, 1996, on this matter.
- 3. Control Room Back-Panel Fire at Palo Verde Unit 2 The Committee heard presentations by and held discussions with representatives of the NRC staff regarding the results and findings of the investigation of the April 4,1996, event that involved two related fires in a back panel of the control room at Palo Verde Unit 2.
On April 4, 1996, an alert was declared at Palo Verde Unit 2, due to two related fires in a back, panel of the main control room. These fires were associated with a voltage regulating transformer which supplied power to the train B essential lighting uninterruptible power supply panel. These fires affected one train of the essential emergency lighting distribution panel in the control room. The fires were promptly detected and extinguished and posed no safety threat to the plant, which was shut down for a refueling outage at that time.
The licensee's root-cause investigation udicated that the core of the regulating transformer coils caused a short circuit fault to station ground through the transformer's panel ground. The licensee also determined that, becaues the neutral leg of the transformer was not grounded, tN fault current propagated through the station ground into panels located in the control room. The overcurrent rerulting from the fault caused the fires in the control room.
Since the fire, the licensee has modified the circuit by grounding the transformer's neutral leg and fusing the output of the transformer's secendary to protect the circuits supplied from the transformer from fault propagation.
Conclusion This briefing was for information only. No Committee action was required.
- 4. NRC Office of Nuclear Reculatory Research Five-Year Thermal Hydraulics Research Procram Plan Representatives of the hRC Office of Nuclear Regulatory Research (RES) and the OLfice of Nuclear Reactor Regulation gave presentations to the ACRS on the scope, goals, and approach of the RES Five-Year Thermal-Hydraulics Program Plan.
The centerpiece of this Plan is the program to upgrade / revise
_ ______.._.__..~____._.__...-__..__.m _ - . _ _ ,
i q -
j j The Honorable Shirley Jackson 5 i
s l the suite of NRC thermal-hydraulic codes. Also included in I the Plan are a pilot project to explore promising means to !
j upgrade these codes, a comprehensive program of separate- and i integral-effects tests, and a plan to enhance and maintain in-l house research capabilities. l Conclusion 4
l The ACRS issued a report to Chairman Jackson dated October 21, f 1996, on this matter.
I RECONCILTATION OF ACRS COMMENTS AND RECOMMENDATIONS l i
The Committee discussed the response from the NRC Executive Director' for Operations dated September 13, 1996, responding to i' ACRS comments and recommendations included in the ACRS report dated l August 15, 1996, cone,:erning SECY-96-128, " Policy and Key Technical !
i Issues Pertaining to the Westinghouse AP600 Standardized Passive
- Reactor Design." ,
i The Committee decided that it was satisfied with the EDO's response. Since the Electric Power Research Institute (EPRI) ,
{ raised concerns related to the policy issues, the Committee !
I requested that an ACRS fellow review the EPRI concerns.
4 OTHER DRTATED ACTIVITIES OF THE COMMITTEE During the period from September 12, 1996 through October 9, 1996, the following Subcommittee meetings were held:
e Thermal Hydraulic Phennmana - September 18-19, 1996 The Subcommittee on Thermal Hydraulic Phenomena met with representatives of the NRC staff to review the status of the thermal-hydraulic research program and the associated budget.
e Human Factors - September 20, 1996 The Subcommittee on Human Factors met with the NRC staff to discuss the latest draft of the NRC Human Performance Program Plan, the collection of human performance data, the develop-ment of human factors inspection guidelines, and the human factors research program.
o Plannina and Procedures - October 8, 1996 l
The Planning and ProcSdures Subcommittee discussed proposed ACRS activities, practices, and procedures for conducting Committee business and c,rganizational and personnel matters ,
relating to ACRS and its s hff.
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a l The. Honorable Shirley Jackson 6 i e Instrumentation and Control Syst== and Comnuters/ Electrical
[ Power Systems - October 8, 1996 l The Subcommittees on Instrumen N cion and Control' systems and l_ Computers and on Electrical Ler systems held a joint meeting with the NRC staff to continue their review of the proposed Standard Review Plan sections, Regulatory Guides, and Branch l Technical Positions related to digital instrumentation and
- control systems.
PROPOSED SCHEDULE FOR THE 436TH ACRS MEETING The Crmmittee agreed to consider the following during the 436th ACM Moeting, November 7-9, 1996:
Pronosed Rule on Steam Generator InteJrity - The Committee will hear presentations by and hold discussions with representatives of r the NRC staff, Nuclear Energy Institute (NEI), and Electric Power Research Institute regarding the proposed rule on steam generator integrity and an associated regulatory guide. Other interested parties will participate, as appropriate. ;
Risk-Based Analysis of Reactor Ooeratina Ernerience - The Committee will hear presentations by and hold discussions with representa- l tivec of the NRC staff regarding the staff activities associated with risk-based analysis of reactor operating experience, the accident sequence precursor program, development of risk-based performance indicators, and related matters. Representatives of the nuclear industry will participate, as appropriate.
Revised Source Term for Operatina Reactors - The Committee will hear presentations by and hold discussions with representatives of the NRC staff, NEI, and Entergy Operations Inc., regarding the use of revised source term for operating plants and the NRC staff's proposed approach for reviewing applications for license amend-ments. Other interested parties will participate, as appropriate.
Emeraency Plannina for Advanced Reactors - The committee will hear presentations by and hold discussions with representatives of the NRC staff regarding a simplified approach to emergency planning for advanced reactors. Representatives of the nuclear industry will participate, as appropriate.
Nitroaan Bubble in the Reactor Coolant System at the Haddam Neck Nuclear Power Plant - The Committee will hear presentations by and hold discussions with representatives of the NRC staff regarding the findings and recommendations of the Augmented Inspection Team which investigated the August 28, 1996 event at the Haddam Neck
n -9 1
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I The Honorable Shirley Jackson 7 l Nuclear Power Plant thr'c involved creation of a nitrogen bubble in j the reactor coolant system.
j sincerely,
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.. .. xress 1 Chairman i
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