|
---|
Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20196J2351999-06-29029 June 1999 Summary of 990617 Meeting with B&Wog & FTI Re B&Wog Emergency Operating Procedure Program.List of Meeting Attendees & Presentation Slides Encl ML20206D6031999-04-30030 April 1999 Summary of 990318 Meeting with Firstenergy Nuclear Operating Co in Rockville,Maryland Re Review Schedule & Content of Proposed QA Topical Rept for Both Davis-Besse & Perry Facilities.List of Meeting Attendees Encl ML20206D0951999-04-23023 April 1999 Summary of 990419 Meeting with Firstenergy Nuclear Operating Co in Rockville,Maryland Re Briefing New NRR Projects Personnel on History & Organization of Davis-Besse & Schedule & Priority of near-term Licensing Actions ML20195D4551998-11-10010 November 1998 Summary of Operating Reactors Events Briefing 98-07 Held on 981021.List of Attendees,Significant Elements of Discussed Events & Significant Events That Were Identified for Input Into NRC Performance Indicator Program Encl ML20236P6611998-07-10010 July 1998 Summary of 980708 Briefing 98-06 to Inform Senior Managers from Ocm,Edo,Aeod & NRR & Regional Ofcs of Selected Events That Occurred Since Last Brief on 980701.List of Attendees & Briefing Slides Encl ML20198G1721997-12-18018 December 1997 Summary of 971215 Meeting W/Util in Rockville,Md to Discuss Quality Programs at Davis-Besse Nuclear Power Station.List of Meeting Participants & Meeting Handouts Encl ML20216J9211997-09-12012 September 1997 Summary of 970821 Meeting W/Toledo Edison Co in Rockville,Md to Discuss Instrument Drift Study.List of Attendees & Handouts Encl ML20137X9341997-04-16016 April 1997 Summary of 970403 Meeting W/Licensee to Discuss plant-specific Thermo-Lag Corrective Action Programs. List of Attendees & Handouts Encl ML20134A9621997-01-22022 January 1997 Summary of 961204 Meeting W/Util in Rockville,Md to Discuss Proposed Merger Between Centerior Energy Corporation & Ohio Edison Company.List of Attendees & Info Handouts Encl ML20059G7451993-11-0101 November 1993 Summary of 931101 Meeting W/Util in Rockville,Md Re Implementation of RG 1.97 for Steam Generator (SG) Pressure Instruments at Plant.List of Mtg Attendees & Handouts 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 ML20056E2051993-08-0303 August 1993 Summary of 930729 Meeting W/Util in Rockville,Md Re Response to GL 90-06 Involving TS for Porv.List of Attendees & Handouts Encl ML20128L5271993-02-12012 February 1993 Summary of 930115 Meeting W/Util in Rockville,Md Re Containment Penetration Bellows Tests in Response to NRC Info Notice 92-20 ML20126H9221992-12-30030 December 1992 Summary of 921230 Meeting W/Util in Rockville,Md to Discuss Upcoming Refueling Outage Plans & Recent Plant Performance ML20126H9251992-12-30030 December 1992 Summary of 921215 Meeting W/Util in Rockville,Md to Discuss Proposed Amend That Would Allow Alternative to Safety Features Actuation Sys in Mode 6 ML20125A4161992-12-0202 December 1992 Summary of 921118 Meeting W/Util in Rockville,Md Re Status of Licensing Issues.Schedule for License Amend Requests Associated W/Upcoming Refueling Outage & Fire Protection Exemption Request Discussed ML20125A7991992-12-0202 December 1992 Summary of 921119 Meeting W/Util in Rockville,Md Re Local Leak Rate Testing of Containment Penetration Bellows at Plant,Per NRC Info Notice 92-020 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 ML20154N9081988-09-23023 September 1988 Summary of 880721 Meeting/Util in Rockville,Md Re Licensee App R Reappraisal Efforts.List of Meeting Attendees & Viewgraphs Encl ML20207E2961988-07-28028 July 1988 Summary of 880714 Meeting W/B&W Owners Group Re Industry & NRC Actions to Resolve Issues Raised in Generic Ltr 87-12. List of Attendees,Viewgraphs & B&W Design Differences Encl ML20196J7851988-03-10010 March 1988 Summary of Operating Reactors Events Meeting 88-10 on 880308.List of Attendees & Significant Elements of Events Discussed Encl ML20148H6031987-12-15015 December 1987 Summary of ACRS DHR Sys Subcommittee 871117 Meeting in Washington,Dc Re Util Decision Not to Install Dedicated Blowdown Sys at Davis Besse & Implications of Diablo Canyon Loss of Shutdown Cooling Event.Viewgraphs Encl ML20239A0231987-09-10010 September 1987 Summary of Operating Reactor Events Meeting 87-30 on 870908, Re Briefing Senior Managers from Nrr,Res,Aeod & Regional Ofcs on Events Which Occurred Since 870825 Meeting.Attendees List,Summary of Reactor Scrams & Viewgraphs Encl ML20204E4951987-03-19019 March 1987 Summary of Operating Reactor Events Meeting 87-07 on 870316. List of Attendees,Events Discussed & Significant Elements of Events Presented & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl ML20214L0051987-01-16016 January 1987 Summary of 870114 Allegation Review Board Meeting to Discuss Allegation RIII-87-A-0001.Meeting Participants Listed ML20214P9371986-11-21021 November 1986 Summary of Operating Reactor Events Meeting 86-39 on 861110.List of Attendees,Events Discussed & Significant Elements of Events Encl ML20214P6911986-08-0707 August 1986 Summary of ACRS Subcommittee on Davis-Besse 860627 Meeting in Washington,Dc Re Facility Restart ML20205K2051986-07-21021 July 1986 Summary of ACRS 315th Meeting on 860710-12 in Washington,Dc Re Loss of Feedwater Event at Davis Besse Nuclear Power Station,Unit 1 & Review of Proposed Commission Policy Statement on Tech Specs ML20214Q4781986-07-11011 July 1986 Summary of ACRS Regulatory Policies & Practices Subcommittee 860626 Meeting in Washington,Dc to Discuss Incident Investigation Team Review & Regulatory Process Re 850609 Event at Facility ML20203H2181986-04-14014 April 1986 Summary of 860205 Meeting W/B&W Owners Group in Bethesda,Md Re B&W Owners Group Ongoing Programs & Activities & 850609 & 1226 Transients at Davis Besse & Rancho Seco,Respectively. Attendance List & Handout Incl ML20195B4641986-03-15015 March 1986 Summary of ACRS Subcommittee on Davis Besse (Restart) 860206 Meeting in Washington,Dc Re Restart Activities Since 850609 Loss of Feedwater Event.Fr Notice,Agenda & List of Attendees Encl ML20205J7411986-02-28028 February 1986 Summary of ACRS 310th Meeting on 860213-15 in Washington,Dc Re Review Studies Done & Procedures Proposed by Gpu Nuclear to Protect Against Inadvertent Criticality During Defueling of TMI-2 Core ML20138P8841985-12-17017 December 1985 Summary of 851209 Meeting W/Util in Bethesda,Md Re Status Rept on Course of Action.List of Meeting Attendees & Info Presented by Util Encl ML20138Q5501985-12-17017 December 1985 Summary of 851126 Meeting W/Util,Beta & Consolidated Controls Corp in Bethesda,Md Re Proposed Changes to Safety Features Actuation Sys.Viewgraphs & List of Attendees Encl ML20136E2921985-11-27027 November 1985 Summary of ACRS Subcommittee on Davis-Besse 851004 Meeting in Oak Harbor,Oh to Review Course of Action Prior to Facility Restart.List of Items Discussed at Meeting & List of Attendees & Handouts Encl ML20137Q3981985-11-21021 November 1985 Summary of 851104 Meeting W/Util,B&W & Essex Corp Re Auxiliary Feedwater Sys Mods & Changes.Viewgraphs & List of Attendees Encl ML20137P7871985-11-21021 November 1985 Summary of 851016-17 Meetings W/Util & Impell Corp Re Licensee Auxiliary Feedwater Reliability Analyses.Viewgraphs & Proposed Outline of Reliability Analysis Rept Encl ML20137P6401985-11-20020 November 1985 Summary of 851105 Meeting W/B&W Owners Group in Bethesda,Md Re Action Plan Developed in Response to Davis-Besse 850609 Loss of Feedwater Event.List of Attendees & Handouts Encl ML20137P7041985-11-20020 November 1985 Summary of 851009 Meeting W/Util,Science Applications Intl Corp & Essex Corp in Bethesda,Md Re Issues Identified in NRC Re Preimplementation Audit Findings in Late Apr 1985.Summary of Commitments Encl ML20136E2491985-11-0707 November 1985 Proposed Summary of ACRS Subcommittee on Regulatory Policies & Practices 851101 Meeting in Washington,Dc to Discuss SECY-85-208, Incident Investigation Program & Process Used to Investigate 850609 Event at Facility ML20138P0081985-10-21021 October 1985 Summary of Operating Reactors Events Meeting 85-19 on 851007 W/Ofc Directors,Div Directors & Representatives on Events Which Occurred Since Last Meeting on 851007 ML20138M4151985-10-17017 October 1985 Summary of 851004 Meeting W/B&W Owners Group Transient Assessment & Availability Committees in Bethesda,Md Re Operating Experience of Operating Reactors & Plans to Improve Experience.Viewgraphs Encl ML20133F9941985-10-0707 October 1985 Summary of Operating Reactors Events Meeting 85-16 on 850916 Re Briefing of Director,Div Directors & Representatives on Events Occurring Since 850909 Meeting.List of Attendees & Viewgraphs Encl ML20133E4631985-10-0101 October 1985 Summary of Operating Reactors Events Meeting 85-17 on 850923.List of Attendees & Viewgraphs Encl ML20134K8521985-08-0808 August 1985 Summary of ACRS ECCS Subcommittee 850731 Meeting w/B&W,C-E & Westinghouse in Washington,Dc Re Review of 10CFR50.46 & App K,Implementation of GE App K Analysis Effort & 850609 Incident at Facility ML20128K7491985-07-12012 July 1985 Summary of Operating Reactor Events Meeting 85-11 on 850701. List of Attendees,Events Discussed,Significant Elements of Events & Assignment of Followup Review Responsibility Encl ML20127N9021985-06-24024 June 1985 Summary of Operating Reactors Events Meeting 85-10 on 850612.Only 3 of 17 Items Scheduled for Completion by 850531 Remain Incomplete.List of Attendees,Summary of Events Discussed & Status of Previous Assignments Encl ML20207N6001984-09-10010 September 1984 Summary of 840905 Meeting at NRC Region III Ofc Re Inservice Insp of HPI Sys ML20155C9641984-08-0606 August 1984 Summary of 840612 Meeting W/Util in Bethesda,Md Re Program to Correct Fire Protection Deficiencies in Facility Fire Protection Features & non-compliance W/Respect to Requirements of App R to 10CFR50.Related Info Encl 1999-06-29
[Table view] Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20196J2351999-06-29029 June 1999 Summary of 990617 Meeting with B&Wog & FTI Re B&Wog Emergency Operating Procedure Program.List of Meeting Attendees & Presentation Slides Encl ML20206D6031999-04-30030 April 1999 Summary of 990318 Meeting with Firstenergy Nuclear Operating Co in Rockville,Maryland Re Review Schedule & Content of Proposed QA Topical Rept for Both Davis-Besse & Perry Facilities.List of Meeting Attendees Encl ML20206D0951999-04-23023 April 1999 Summary of 990419 Meeting with Firstenergy Nuclear Operating Co in Rockville,Maryland Re Briefing New NRR Projects Personnel on History & Organization of Davis-Besse & Schedule & Priority of near-term Licensing Actions ML20195D4551998-11-10010 November 1998 Summary of Operating Reactors Events Briefing 98-07 Held on 981021.List of Attendees,Significant Elements of Discussed Events & Significant Events That Were Identified for Input Into NRC Performance Indicator Program Encl ML20236P6611998-07-10010 July 1998 Summary of 980708 Briefing 98-06 to Inform Senior Managers from Ocm,Edo,Aeod & NRR & Regional Ofcs of Selected Events That Occurred Since Last Brief on 980701.List of Attendees & Briefing Slides Encl ML20198G1721997-12-18018 December 1997 Summary of 971215 Meeting W/Util in Rockville,Md to Discuss Quality Programs at Davis-Besse Nuclear Power Station.List of Meeting Participants & Meeting Handouts Encl ML20216J9211997-09-12012 September 1997 Summary of 970821 Meeting W/Toledo Edison Co in Rockville,Md to Discuss Instrument Drift Study.List of Attendees & Handouts Encl ML20137X9341997-04-16016 April 1997 Summary of 970403 Meeting W/Licensee to Discuss plant-specific Thermo-Lag Corrective Action Programs. List of Attendees & Handouts Encl ML20134A9621997-01-22022 January 1997 Summary of 961204 Meeting W/Util in Rockville,Md to Discuss Proposed Merger Between Centerior Energy Corporation & Ohio Edison Company.List of Attendees & Info Handouts Encl ML20059G7451993-11-0101 November 1993 Summary of 931101 Meeting W/Util in Rockville,Md Re Implementation of RG 1.97 for Steam Generator (SG) Pressure Instruments at Plant.List of Mtg Attendees & Handouts 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 ML20056E2051993-08-0303 August 1993 Summary of 930729 Meeting W/Util in Rockville,Md Re Response to GL 90-06 Involving TS for Porv.List of Attendees & Handouts Encl ML20128L5271993-02-12012 February 1993 Summary of 930115 Meeting W/Util in Rockville,Md Re Containment Penetration Bellows Tests in Response to NRC Info Notice 92-20 ML20126H9221992-12-30030 December 1992 Summary of 921230 Meeting W/Util in Rockville,Md to Discuss Upcoming Refueling Outage Plans & Recent Plant Performance ML20126H9251992-12-30030 December 1992 Summary of 921215 Meeting W/Util in Rockville,Md to Discuss Proposed Amend That Would Allow Alternative to Safety Features Actuation Sys in Mode 6 ML20125A4161992-12-0202 December 1992 Summary of 921118 Meeting W/Util in Rockville,Md Re Status of Licensing Issues.Schedule for License Amend Requests Associated W/Upcoming Refueling Outage & Fire Protection Exemption Request Discussed ML20125A7991992-12-0202 December 1992 Summary of 921119 Meeting W/Util in Rockville,Md Re Local Leak Rate Testing of Containment Penetration Bellows at Plant,Per NRC Info Notice 92-020 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 ML20154N9081988-09-23023 September 1988 Summary of 880721 Meeting/Util in Rockville,Md Re Licensee App R Reappraisal Efforts.List of Meeting Attendees & Viewgraphs Encl ML20207E2961988-07-28028 July 1988 Summary of 880714 Meeting W/B&W Owners Group Re Industry & NRC Actions to Resolve Issues Raised in Generic Ltr 87-12. List of Attendees,Viewgraphs & B&W Design Differences Encl ML20196J7851988-03-10010 March 1988 Summary of Operating Reactors Events Meeting 88-10 on 880308.List of Attendees & Significant Elements of Events Discussed Encl ML20148H6031987-12-15015 December 1987 Summary of ACRS DHR Sys Subcommittee 871117 Meeting in Washington,Dc Re Util Decision Not to Install Dedicated Blowdown Sys at Davis Besse & Implications of Diablo Canyon Loss of Shutdown Cooling Event.Viewgraphs Encl ML20239A0231987-09-10010 September 1987 Summary of Operating Reactor Events Meeting 87-30 on 870908, Re Briefing Senior Managers from Nrr,Res,Aeod & Regional Ofcs on Events Which Occurred Since 870825 Meeting.Attendees List,Summary of Reactor Scrams & Viewgraphs Encl ML20204E4951987-03-19019 March 1987 Summary of Operating Reactor Events Meeting 87-07 on 870316. List of Attendees,Events Discussed & Significant Elements of Events Presented & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl ML20214L0051987-01-16016 January 1987 Summary of 870114 Allegation Review Board Meeting to Discuss Allegation RIII-87-A-0001.Meeting Participants Listed ML20214P9371986-11-21021 November 1986 Summary of Operating Reactor Events Meeting 86-39 on 861110.List of Attendees,Events Discussed & Significant Elements of Events Encl ML20214P6911986-08-0707 August 1986 Summary of ACRS Subcommittee on Davis-Besse 860627 Meeting in Washington,Dc Re Facility Restart ML20205K2051986-07-21021 July 1986 Summary of ACRS 315th Meeting on 860710-12 in Washington,Dc Re Loss of Feedwater Event at Davis Besse Nuclear Power Station,Unit 1 & Review of Proposed Commission Policy Statement on Tech Specs ML20214Q4781986-07-11011 July 1986 Summary of ACRS Regulatory Policies & Practices Subcommittee 860626 Meeting in Washington,Dc to Discuss Incident Investigation Team Review & Regulatory Process Re 850609 Event at Facility ML20203H2181986-04-14014 April 1986 Summary of 860205 Meeting W/B&W Owners Group in Bethesda,Md Re B&W Owners Group Ongoing Programs & Activities & 850609 & 1226 Transients at Davis Besse & Rancho Seco,Respectively. Attendance List & Handout Incl ML20195B4641986-03-15015 March 1986 Summary of ACRS Subcommittee on Davis Besse (Restart) 860206 Meeting in Washington,Dc Re Restart Activities Since 850609 Loss of Feedwater Event.Fr Notice,Agenda & List of Attendees Encl ML20205J7411986-02-28028 February 1986 Summary of ACRS 310th Meeting on 860213-15 in Washington,Dc Re Review Studies Done & Procedures Proposed by Gpu Nuclear to Protect Against Inadvertent Criticality During Defueling of TMI-2 Core ML20138Q5501985-12-17017 December 1985 Summary of 851126 Meeting W/Util,Beta & Consolidated Controls Corp in Bethesda,Md Re Proposed Changes to Safety Features Actuation Sys.Viewgraphs & List of Attendees Encl ML20138P8841985-12-17017 December 1985 Summary of 851209 Meeting W/Util in Bethesda,Md Re Status Rept on Course of Action.List of Meeting Attendees & Info Presented by Util Encl ML20136E2921985-11-27027 November 1985 Summary of ACRS Subcommittee on Davis-Besse 851004 Meeting in Oak Harbor,Oh to Review Course of Action Prior to Facility Restart.List of Items Discussed at Meeting & List of Attendees & Handouts Encl ML20137P7871985-11-21021 November 1985 Summary of 851016-17 Meetings W/Util & Impell Corp Re Licensee Auxiliary Feedwater Reliability Analyses.Viewgraphs & Proposed Outline of Reliability Analysis Rept Encl ML20137Q3981985-11-21021 November 1985 Summary of 851104 Meeting W/Util,B&W & Essex Corp Re Auxiliary Feedwater Sys Mods & Changes.Viewgraphs & List of Attendees Encl ML20137P7041985-11-20020 November 1985 Summary of 851009 Meeting W/Util,Science Applications Intl Corp & Essex Corp in Bethesda,Md Re Issues Identified in NRC Re Preimplementation Audit Findings in Late Apr 1985.Summary of Commitments Encl ML20137P6401985-11-20020 November 1985 Summary of 851105 Meeting W/B&W Owners Group in Bethesda,Md Re Action Plan Developed in Response to Davis-Besse 850609 Loss of Feedwater Event.List of Attendees & Handouts Encl ML20136E2491985-11-0707 November 1985 Proposed Summary of ACRS Subcommittee on Regulatory Policies & Practices 851101 Meeting in Washington,Dc to Discuss SECY-85-208, Incident Investigation Program & Process Used to Investigate 850609 Event at Facility ML20138P0081985-10-21021 October 1985 Summary of Operating Reactors Events Meeting 85-19 on 851007 W/Ofc Directors,Div Directors & Representatives on Events Which Occurred Since Last Meeting on 851007 ML20138M4151985-10-17017 October 1985 Summary of 851004 Meeting W/B&W Owners Group Transient Assessment & Availability Committees in Bethesda,Md Re Operating Experience of Operating Reactors & Plans to Improve Experience.Viewgraphs Encl ML20133F9941985-10-0707 October 1985 Summary of Operating Reactors Events Meeting 85-16 on 850916 Re Briefing of Director,Div Directors & Representatives on Events Occurring Since 850909 Meeting.List of Attendees & Viewgraphs Encl ML20133E4631985-10-0101 October 1985 Summary of Operating Reactors Events Meeting 85-17 on 850923.List of Attendees & Viewgraphs Encl ML20134K8521985-08-0808 August 1985 Summary of ACRS ECCS Subcommittee 850731 Meeting w/B&W,C-E & Westinghouse in Washington,Dc Re Review of 10CFR50.46 & App K,Implementation of GE App K Analysis Effort & 850609 Incident at Facility ML20128K7491985-07-12012 July 1985 Summary of Operating Reactor Events Meeting 85-11 on 850701. List of Attendees,Events Discussed,Significant Elements of Events & Assignment of Followup Review Responsibility Encl ML20127N9021985-06-24024 June 1985 Summary of Operating Reactors Events Meeting 85-10 on 850612.Only 3 of 17 Items Scheduled for Completion by 850531 Remain Incomplete.List of Attendees,Summary of Events Discussed & Status of Previous Assignments Encl ML20155C9641984-08-0606 August 1984 Summary of 840612 Meeting W/Util in Bethesda,Md Re Program to Correct Fire Protection Deficiencies in Facility Fire Protection Features & non-compliance W/Respect to Requirements of App R to 10CFR50.Related Info Encl ML20126L2331981-05-0101 May 1981 Summary of 810429 Meeting W/Pwr Owners Group Re Thermal Shock to Reactor Pressure Vessels.All Parties Agree That Thermal Shock W/Subsequent Repressurization Is Safety Concern Needing Prompt Evaluation 1999-06-29
[Table view] |
Text
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November 21, 1985 hb
' Docket No. 50-346 LICENSEE: Toledo Edison Company FACILITY: Davis-Besse Unit No. 1
SUBJECT:
AUXILIARY FEEDWATER (AFW) RELIABILITY ANALYSIS MEETING, OCTOBER 16 AND 17, 1985 Introduction We met with the licensee to discuss the status and results of AFW Reliability Analyses. Copies of the view graphs are provided in Enclosure 1. Enclosure 2 presents the proposed outline of the reliability analysis report. This was a follow-on meeting to the one conducted on September 25, 1985 at the Davis-Besse site. The meeting was attended by:
TED IMPELL CORP. NRC S. Jain S. Mitra C. McCracken C. Minge A. El-Bassioni J. Ridgely F. Rosa Discussion The licensee presented a summary of their AFW unavailability results (see last two pages of Enclosure 1). Additionally, they stated that the AFW reliability results would be docketed by October 25, 1985. For a loss main feedwater event, the licensee predicts an unavailability ofs 8x10-5 for the modified AFW system, allowing for operator action to start the new motor driven feed pump. The staff requested that justification be provided for each of the assumptions in their analysis.
To evaluate single failure vulnerability of the SFRCS, the staff requested a block diagram failure modes and effects analysis (FMEA). The licensee committed to provide this analysis by October 25, 1985.
?<- W Conrad McCracken Operating Reactors Branch #4 Division of Licensing
Enclosures:
As Stated cc w/ enclosures:
See next page -
s l-8512050103 851121 PDR ORB #4:DL ADOCK 05000346 CMcCracken;cr P PDR 11p//85
Enclosure 1 l OCTOBER 16-17, 1985 MEETING WITH NRC ON AFWS RELIABILITY ANALYSES
. S. C. JAIN PURPOSE OF MEETING
, S. C. JAIN BRIEF DISCUSSION OF DB-1 AFWS d
. S. C. JAIN REVIEW 0F ONG0ING AFWS RELIABILITY ANALYSES
. S. P. MITRA SCOPE OF SRP ANALYSES
. S. P. MITRA PLANNED SHORT-TERM MODIFICATIONS TO AFWS
. NRC, S. C. JAIN DETAILED REVIEW 0F THE IMPELL SRP S. P. MITRA ANALYSES
. S. C. JAIN
SUMMARY
OF ACTION ITEMS
. S. C. JAIN PLANS FOR FUTURE INTERACTIONS O
I
l l
AUXILIARY FEEDWATER OVERVIEW
. TWO 100% CAPACITY STEAM DRIVEN PUMPS
. CAPABILITY TO PF] VIDE MOTIVE STEAM TO AUXILIARY FEED PUMP TURBINES F".0M EITHER STEAM GENERATOR
. CAPACITY TO AL'f;N AUXILIARY FEED PUMP DISCHARGE FLOW TO EITHER STEli GENERATOR
. SAFETIGRADEINITIATIONBYTHESTEAMANDFEEDWATER
. RUPTURE CONTF JL SYSTEM
. SAFETY GRAD! STEAM GENERATOR. LEVEL CONTROL SYSTEM i
. TRAIN 1 MOV'S ARE DC POWERED i l TRAIN 2 M0V'S ARE AC POWERED l _
NORMAL SUCTION ALIGNED TO CONDENSATE STORAGE TANKS.
AUTOMATIC TRANSFER TO SAFETY GRADE SERVICE WATER SYSTEM ON LOW SUCTION PRESSURE l
l AUXILIARY FEEDWATER INITIATION THE SFRCS WILL INITIATE AFW UNDER THE FOLLOWING PLANT CONDITIONS: !
. 1. LOW STEAM GENERATOR LEVEL
- 2. HIGH STEAM GENERATOR LEVEL
- 3. HIGH STEAM GENERATOR TO MAIN FEEDWATER DIFFERENTIAL PRESSURE
- 4. LOSS OF FOUR RCP'S
- 5. LOW STEAM GENERATOR PRESSURE ,
l I
i
e 8 9 PLANNED MODIFICATIONS TO RESOLVE HISTORICAL CONCERNS REPLACE WOODWARD PG-PL GOVERN 0R ON AFPT #1 WITH A WOODWARD PGG MODEL GOVERNOR TO RESOLVE BINDING AND CLUTCH CONCERNS. A PGG GOVERNOR WAS INSTALLED ON AFPT #2 DURING LAST REFUELING OUTAGE.
IMPROVED MAINTENANCE AND TESTING ON LIMITOROUE VALVE OPERATORS.
MOTIVE STEAM TO BE SUPPLIED DIRECTLY TO THE STEAM ADMISSION VALVES
~
ALIGNING ALL M0V'S IN THE N0RMAL PUMP DISCHARGE LINES NORMALLY OPEN. ,
INSTALLING ONE AIR OPERATED-FAIL OPEN VALVE IN THE STEAM SUPPLY LINE NEAR EACH AFPT TO RESOLVE CONDENSATION CONCERN
PLANNED MODIFICATIONS TO RESOLVE HISTORICAL CONCERNS '
(CONT'D)
. INCREASE MESH SIZE OF THE CST DISCHARGE STRAINER TO AFP TO REDUCE PRESSURE DROP IN SUCTION LINE.
. ELIMINATE BASKETS FROM THE AFP SUCTION STRAINERS.
. REVISE SUCTION TRANSFER LOGIC TO MINIMIZE SPURIOUS TRANSFER TO SERVICE WATER INSTALL NEW 800 GPM MOTOR DRIVEN FEED PUMP I
D
. . l INSTALLATION OF MOTOR DRIVEN FEED PUMP
. INSTALL NEW MOTOR DRIVEN FEED PUMP PRIOR TO STARTUP
, UEW PUMP DESIGN FEATURES:
. PROVIDES 100% CAPACITY AUXILIARY FEEDWATER FLOW
. PUMP DISCHARGE ALIGNED TO THE AUXILIARY FEEDWATER HEADERS DURING NORMAL FULL POWER OPERATION
. PUMP SUCTION NORMALLY FROM THE CONDENSATE STORAGE TANK
. PUMP CAPABLE OF BEING ST,ARTED FROM THE CONTROL ROOM e
l
l INSTALLATION OF MOTOR DRIVEN FEED PUMP PRE-STARTUP (CONT'D)
. PUMP MOTOR CAN BE SUPPLIED FROM EITHER EMERGENCY DIESEL GENERATOR FOLLOWING A LOSS OF 0FFSITE POWER CAN BE MANUALLY REALIGNED TO FEED THE MAIN FEEDWATER SYSTEM. THIS WILL BE THE NORMAL ALIGNMENT DURING LOW POWER OPERATION. PUMP SUCTION IN THIS ALIGNMENT WILL BE FROM THE DEAERATOR STORAGE TANK.
O o
e
._. - . . . _. -_.___-_,_,-,__.,.,y. _ . , _ _ . _
S e
OVERVIEW OF ONG0ING RELIABILITY ANALYSES l
STANDARD REVIEW PLAN /NUREG-0611 ANALYSES
. CASES ANALYZED
. LOSS OF MAIN FEEDWATER (LMFW)
. LMFW WITH LOSS OF 0FFSITE POWER
. LMFW WITH LOSS OF ONSITE AC POWER CONFIGURATIONS ANALYZED
. EXISTING AFWS CONFIGURATION h
PLANNED SHORT-TERM AFWS CONFIGURATION
. NUREG-0611 DATA BASE UTILIZED 1
OVERVIEW 0F ONG0ING RELIABILITY ANALYSES DETAILED RELIABILITY EVALUATION
. FEATURES:
. GENERAL UPDATE OF 1981 EDS (IMPELL) STUDY
. PLANT SPECIFIC DATA BASE MUCH MORE DETAILED THAN NUREG-0611 MODELS
. CONFIGURATIONS ANALYZED
~
PRE-TMI AFWS CONFIGURATION
. AFWS CONFIGURATION AS OF JUNE 9, 1985 PLANNED SHORT-TERM AFWS CONFIGURATION MODEL IS MORE PLANT SPECIFIC AND PROVIDES ADDITI0NAL INSIGHT INTO DAVIS-BESSE AFWS UNRELIABILITY
l SCOPE OF STUDY IN RESPONSE TO SRP 10,4,9 l
. RELIABILITY OF THREE (3) AFWS CONFIGURATIONS WERE STUDIED
. EXISTING (AS OF JUNE 9, 1985)
. PLANNED PLANNED WITH INCLUSION OF MOTOR DRIVEN FEED PUMP RELIABILITY ASSESSED FOR EACH CONFIGURATION IN RESPONSE TO THREE (3) INITIATING EVENTS LOSS OF MAIN FEED (LMFW)
. LOSS OF 0FFSITE POWER (LOOP)
. LOSS OF ALL A.C. (LOAC) -
\
1 l
REGULATORY PRESCRIPTION FOR DEMOSTRATING i COMPLIANCE WITH SRP 10.4.9 ACCEPTANCE CRITERIA
. SRP 10.4.9 ACCEPTANCE CRITERIA FOR AFWS
. AFWS UNRELIABILITY 10-4 TO 10-5 PER DEMAND.
OTHER METHODS FOR ACCOMPLISHING AFWS SAFETY FUNCTION OR RELIABLE METHODS FOR CORE COOLING MAY BE CONSIDERED TO JUSTIFY A HIGHER UNRELIABILITY
. PRESCRIPTION
\ .
TO BE PERFORMED IN ACCO.RDANCE WITH ITEM II.E.1.1 0F NUREG-0737 ,
i i
. IDENTIFY MAJOR CONTRIBUTORS TO AFWS SYSTEM FAILURE
. DATA AND METHODS FROM NUREG-0611 (APPENDIX III a ANNEX 1 0F APPENDIX X) -
l
_ _ _ _ _ _ ,7- -- w-- - - e -- -- g --
*z~~e w -~'
AFWS SUCCESS CRITERIA
. USED FOR SRP AFWS STUDY
, EXISTING AND PLANNED CONFIGURATIONS
. ONE (1) 0F TWO (2) STEAM GENERATORS RECEIVE AFW FROM 1 0F 2 AFW PUMPS
. PLANNED CONFIGURATION WITH MOTOR DRIVEN MAIN FEED PUMP.
. ONE (1) 0F TWO (2) STEAM GENERATORS RECEIVE AFW FROM 10F 2 TURBINE DRIVEN AFW PUMPS OF! MOTOR DRIVEN FEED PUMP AFW TO BE DELIVERED IN TIME TO AVERT STEAM GENERATOR DRYOUT CONDITION LMFW - ew 5 MINS.
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Enclosure 2 DAVIS Bess 4li. AROS ReLiAstLLTY AtJAt-MSIS
(, NURE6 o Gll[stiLP MODEL)
M SED otTLl pt::,
e lpJTRe.DU CClo N
- EA$tGROUMD, HISTom/ M
. A RifS SYST4EM Os* E4PTiop w e sys %7vssses
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. METt-toDotoGy
- pu REG o roll DATA
. success cetred2.tA
- DeVIATl005 Pfte M MVliLEG oGll METM0LoCy[IMTA e JO571F4eATtoM5 F*R. .Dt=t/lAT(ous ARUS ccOF%URATLopS 43A4.yeQD
, of sT OF McDfFleATtOOS
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. 'AffEUDie.ES
. FAULT TEEES f - MIL 6ED {
c=H rut 4d2.
- M< uLA7(04 TABLES / esuntour Wit 4.
Ss .^ceer M MOT t N e-M
- TAdk.E c/F ReLATIE (MPEom.M eJC5, tTP4 SY IM l
i MEETING
SUMMARY
DISTRIBUTION Licensee: Toledo Edison Company
- Copies also sent to those people on service (cc) list for subject plant (s).
Docket File NRC PDR L PDR ORB #4 Rdq Project Manager - C. McCracken
~
JStolz BGrimes (Emerg. Preparedness only)
OELD EJordan, IE ACRS-10 NRC Meeting
Participants:
AEl-Bassioni JRidgely FRosa l
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