|
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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20198A3731997-12-0404 December 1997
Summary of 971119 Meeting W/Westinghouse Owners Group Re Completion of WOG Topical Rept WCAP-14572,rev 1,conclusions from Results of Surry Pilot Plant Submittal & Schedule for Approving Surry Submittal & Associated WCAP
ML20137F2351997-03-24024 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
ML20134M3841997-02-13013 February 1997
Summary of 970128 Meeting W/Util to Discuss Program to Dispose of Weapons Grade Pu Through Use as Mixed Oxide Fuel. List of Attendees & Matl Used in Presentation Encl
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
ML20129G5261996-07-31031 July 1996
Summary of ACRS Plant Operations Subcommittee Meeting on 960521 to Review Proposed Rule on Shutdown Operations & Associated Reg Guide as Well as Studies on Shutdown Risk at Surry & Grand Gulf Nuclear Plants
ML20059J8071994-01-19019 January 1994
Summary of Operating Reactors Events Meeting 94-02 on 940112
ML20217D4611993-12-0808 December 1993
Summary of 931206 Meeting W/Commonwealth Edison Co Re Items of Mutual Interest Re Operations at Utilities Nuclear Power Plants,W/Special Attention Devoted to Activities at Quad Cities Nuclear Station,Units 1 & 2
ML20058N7741993-12-0303 December 1993
Summary of Operating Reactors Events Meeting 93-45 on 931201
ML20058M5891993-09-27027 September 1993
Summary of Operating Reactors Events Meeting 93-36 on 930922
ML20058M1861993-09-22022 September 1993
Summary of Operating Reactors Events Meeting 93-35 on 930915
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
ML20059C9731993-09-0808 September 1993
Summary of 400th ACRS Meeting on 930805-06 in Bethesda,Md Re Proposed Resolution of GSI 57, Effects of Fire Protection Sys Actuation on Safety-Related Equipment & Lessons Learned from LaSalle Fire & Report on ABWR Fire Safety Issues
ML20057A5221993-07-28028 July 1993
Summary of Operating Reactors Events Meeting 93-27 on 930721
ML20056D7471993-07-27027 July 1993
Summary of 930617 Meeting W/Util to Discuss Steps Being Taken by Licensee to Resolve Reactor Vessel Water Level Instrumentation Degassing Issue.List of Attendees Encl
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
ML20059C7311993-01-30030 January 1993
Summary of 391st ACRS Meeting on 921105-07 in Bethesda,Md Re NRC Regulatory Analysis Guidelines & Reactor Operating Events & Occurrences,Shearon Harris Plant Loss of High Head SI & LaSalle Overfill Due to Failure of MFW Pumps to Trip
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
ML20247E3641989-09-0606 September 1989
Summary of 890717 Meeting W/Numarc,B&W Owners Group & Representatives of Lead Plants Re Status of STS Amends & Outstanding Issues Associated W/Lead Plant STS Submittals
ML20247D5291989-09-0505 September 1989
Summary of Operating Reactors Events Meeting 89-31 on 890830.Significant Event for Input Into NRC Performance Indicator Program Identified
ML20247K2471989-08-24024 August 1989
Trip Rept of Staff 890718-19,21 & 0801-02 Visits to Nuclear Power Plants to Gather Info Re Industry Actions to Address Loss of Oil Malfunctions of Rosemount Models 1153 & 1154 Transmitters
ML20246K2171989-08-24024 August 1989
Summary of Operating Reactors Events Meeting 89-30 on 890823 Re Reactor Trip W/Multiple Instrumentation & Equipment Failures at DC Cook Unit 2 on 890814 & Auxiliary Feedwater Flows at Hb Robinson
ML20248B5171989-08-0303 August 1989
Summary of 890725 Interface Meeting W/Util in Birrmingham,Al Re Sonopco/Util Corporate Organization Including Generic Activities & Initiatives Re Plants.Agenda & Viewgraphs Encl
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
ML20246P7771989-07-13013 July 1989
Summary of Operating Reactors Events Meeting 89-26 on 890712.Events Discussed & Significant Elements of Events Presented in Encl 2.List of Attendees Also Encl
ML20246F8691989-06-22022 June 1989
Summary of Operating Reactors Events Meeting 89-24 on 890621.On 890615,potential Unmonitored Primary Coolant Release Path to Environ Discovered at WPPSS-2.On 890617,loss of Offsite Power Occurred at Brunswick,Unit 2
ML20245G6411989-06-15015 June 1989
Summary of Operating Reactors Events Meeting 89-23 on 890614.On 890607,multiple Electrical Distribution Sys Problems Occurred at Oconee,Units 1,2 & 3.On 890610,unit Power Signal Caused Scram
ML20245F2221989-06-0808 June 1989
Summary of Operating Reactors Events Meeting 89-21 on 890531.List of Attendees & Related Info Encl
ML20245A3851989-05-30030 May 1989
Summary of Operating Reactors Events Meeting 89-20 on 890524.List of Meeting Attendees & Viewgraphs Encl
ML20247M7961989-05-24024 May 1989
Summary of 890502 Meeting W/Util,Sargent & Lundy & Rl Cloud Assoc in Rockville,Md Re Nonlinear Piping Analyses Used to Justify Removal of Snubbers & Pipe Supports.List of Attendees & Presentation by Licensee & Contractors Encl
ML20247K0901989-05-23023 May 1989
Summary of 890517 Meeting W/Inpo Re Similarities & Differences Between Performance Indicator Programs.Detailed Discussion Encl
ML20247J7051989-05-19019 May 1989
Summary of 890501 Meeting w/C-E Owners Group in Rockville,Md Re Diverse Emergency Feedwater Actuation Sys,Per 10CFR50.62 Requirements.List of Meeting Attendees & Viewgraphs Encl. Record Copy
ML20247J6991989-05-19019 May 1989
Summary of 890501 Meeting w/C-E Owners Group in Rockville,Md Re Diverse Emergency Feedwater Actuation Sys,Per 10CFR50.62 Requirements.List of Meeting Attendees & Viewgraphs Encl
ML20247K1011989-05-16016 May 1989
Summary of 890517 Meeting W/Inpo in Bethesda,Md Re Similarities & Differences Between INPO & NRC Performance Indicators
ML20247D3441989-05-16016 May 1989
Summary of Operating Reactors Events Meeting 89-19 on 890510.List of Attendees,Events Discussed & Significant Elements of Events & Rept of long-term Followup Assignments & Summary of Scrams for Wk Ending 890507 Encl
ML20246L7281989-05-0505 May 1989
Summary of 890503 Meeting W/Util in Rockville,Md Re Containment Vessel Structural Integrity Tech Specs for Plants.List of Attendees & Licensee Presentation Encl
ML20246C3261989-05-0404 May 1989
Summary of Operating Reactors Events Meeting 89-18 on 890503
ML20246B5161989-04-28028 April 1989
Summary of 890419 Operating Reactors Events Meeting 89-16. List of Attendees & Handouts 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
ML20245H8011989-02-23023 February 1989
Summary of Operating Reactors Events Meeting 89-08 on 890222.Attendee List & Events Discussed & Significant Elements of Events Encl
ML20235M1671989-02-17017 February 1989
Summary of Operating Reactors Events Meeting 89-07 on 890215.List of Attendees,List of Events Discussed,Summary of Events for Long Term Followup or Input to NRC Performance Indicator Program & Summary of Reactor Scrams Encl
ML20196B9821988-12-0101 December 1988
Summary of Operating Reactors Events Meeting 88-47 on 881129.List of Attendees,Events Discussed & Significant Elements of Events,Two Events Suggested for long-term Followup & Summary of Reactor Scrams Encl
1997-03-24
[Table view]
Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20198A3731997-12-0404 December 1997
Summary of 971119 Meeting W/Westinghouse Owners Group Re Completion of WOG Topical Rept WCAP-14572,rev 1,conclusions from Results of Surry Pilot Plant Submittal & Schedule for Approving Surry Submittal & Associated WCAP
ML20137F2351997-03-24024 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
ML20134M3841997-02-13013 February 1997
Summary of 970128 Meeting W/Util to Discuss Program to Dispose of Weapons Grade Pu Through Use as Mixed Oxide Fuel. List of Attendees & Matl Used in Presentation Encl
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
ML20129G5261996-07-31031 July 1996
Summary of ACRS Plant Operations Subcommittee Meeting on 960521 to Review Proposed Rule on Shutdown Operations & Associated Reg Guide as Well as Studies on Shutdown Risk at Surry & Grand Gulf Nuclear Plants
ML20059J8071994-01-19019 January 1994
Summary of Operating Reactors Events Meeting 94-02 on 940112
ML20217D4611993-12-0808 December 1993
Summary of 931206 Meeting W/Commonwealth Edison Co Re Items of Mutual Interest Re Operations at Utilities Nuclear Power Plants,W/Special Attention Devoted to Activities at Quad Cities Nuclear Station,Units 1 & 2
ML20058N7741993-12-0303 December 1993
Summary of Operating Reactors Events Meeting 93-45 on 931201
ML20058M5891993-09-27027 September 1993
Summary of Operating Reactors Events Meeting 93-36 on 930922
ML20058M1861993-09-22022 September 1993
Summary of Operating Reactors Events Meeting 93-35 on 930915
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
ML20059C9731993-09-0808 September 1993
Summary of 400th ACRS Meeting on 930805-06 in Bethesda,Md Re Proposed Resolution of GSI 57, Effects of Fire Protection Sys Actuation on Safety-Related Equipment & Lessons Learned from LaSalle Fire & Report on ABWR Fire Safety Issues
ML20057A5221993-07-28028 July 1993
Summary of Operating Reactors Events Meeting 93-27 on 930721
ML20056D7471993-07-27027 July 1993
Summary of 930617 Meeting W/Util to Discuss Steps Being Taken by Licensee to Resolve Reactor Vessel Water Level Instrumentation Degassing Issue.List of Attendees Encl
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
ML20059C7311993-01-30030 January 1993
Summary of 391st ACRS Meeting on 921105-07 in Bethesda,Md Re NRC Regulatory Analysis Guidelines & Reactor Operating Events & Occurrences,Shearon Harris Plant Loss of High Head SI & LaSalle Overfill Due to Failure of MFW Pumps to Trip
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
ML20247E3641989-09-0606 September 1989
Summary of 890717 Meeting W/Numarc,B&W Owners Group & Representatives of Lead Plants Re Status of STS Amends & Outstanding Issues Associated W/Lead Plant STS Submittals
ML20247D5291989-09-0505 September 1989
Summary of Operating Reactors Events Meeting 89-31 on 890830.Significant Event for Input Into NRC Performance Indicator Program Identified
ML20246K2171989-08-24024 August 1989
Summary of Operating Reactors Events Meeting 89-30 on 890823 Re Reactor Trip W/Multiple Instrumentation & Equipment Failures at DC Cook Unit 2 on 890814 & Auxiliary Feedwater Flows at Hb Robinson
ML20248B5171989-08-0303 August 1989
Summary of 890725 Interface Meeting W/Util in Birrmingham,Al Re Sonopco/Util Corporate Organization Including Generic Activities & Initiatives Re Plants.Agenda & Viewgraphs Encl
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
ML20246P7771989-07-13013 July 1989
Summary of Operating Reactors Events Meeting 89-26 on 890712.Events Discussed & Significant Elements of Events Presented in Encl 2.List of Attendees Also Encl
ML20246F8691989-06-22022 June 1989
Summary of Operating Reactors Events Meeting 89-24 on 890621.On 890615,potential Unmonitored Primary Coolant Release Path to Environ Discovered at WPPSS-2.On 890617,loss of Offsite Power Occurred at Brunswick,Unit 2
ML20245G6411989-06-15015 June 1989
Summary of Operating Reactors Events Meeting 89-23 on 890614.On 890607,multiple Electrical Distribution Sys Problems Occurred at Oconee,Units 1,2 & 3.On 890610,unit Power Signal Caused Scram
ML20245F2221989-06-0808 June 1989
Summary of Operating Reactors Events Meeting 89-21 on 890531.List of Attendees & Related Info Encl
ML20245A3851989-05-30030 May 1989
Summary of Operating Reactors Events Meeting 89-20 on 890524.List of Meeting Attendees & Viewgraphs Encl
ML20247M7961989-05-24024 May 1989
Summary of 890502 Meeting W/Util,Sargent & Lundy & Rl Cloud Assoc in Rockville,Md Re Nonlinear Piping Analyses Used to Justify Removal of Snubbers & Pipe Supports.List of Attendees & Presentation by Licensee & Contractors Encl
ML20247K0901989-05-23023 May 1989
Summary of 890517 Meeting W/Inpo Re Similarities & Differences Between Performance Indicator Programs.Detailed Discussion Encl
ML20247J7051989-05-19019 May 1989
Summary of 890501 Meeting w/C-E Owners Group in Rockville,Md Re Diverse Emergency Feedwater Actuation Sys,Per 10CFR50.62 Requirements.List of Meeting Attendees & Viewgraphs Encl. Record Copy
ML20247J6991989-05-19019 May 1989
Summary of 890501 Meeting w/C-E Owners Group in Rockville,Md Re Diverse Emergency Feedwater Actuation Sys,Per 10CFR50.62 Requirements.List of Meeting Attendees & Viewgraphs Encl
ML20247K1011989-05-16016 May 1989
Summary of 890517 Meeting W/Inpo in Bethesda,Md Re Similarities & Differences Between INPO & NRC Performance Indicators
ML20247D3441989-05-16016 May 1989
Summary of Operating Reactors Events Meeting 89-19 on 890510.List of Attendees,Events Discussed & Significant Elements of Events & Rept of long-term Followup Assignments & Summary of Scrams for Wk Ending 890507 Encl
ML20246L7281989-05-0505 May 1989
Summary of 890503 Meeting W/Util in Rockville,Md Re Containment Vessel Structural Integrity Tech Specs for Plants.List of Attendees & Licensee Presentation Encl
ML20246C3261989-05-0404 May 1989
Summary of Operating Reactors Events Meeting 89-18 on 890503
ML20246B5161989-04-28028 April 1989
Summary of 890419 Operating Reactors Events Meeting 89-16. List of Attendees & Handouts 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
ML20245H8011989-02-23023 February 1989
Summary of Operating Reactors Events Meeting 89-08 on 890222.Attendee List & Events Discussed & Significant Elements of Events Encl
ML20235M1671989-02-17017 February 1989
Summary of Operating Reactors Events Meeting 89-07 on 890215.List of Attendees,List of Events Discussed,Summary of Events for Long Term Followup or Input to NRC Performance Indicator Program & Summary of Reactor Scrams Encl
ML20196B9821988-12-0101 December 1988
Summary of Operating Reactors Events Meeting 88-47 on 881129.List of Attendees,Events Discussed & Significant Elements of Events,Two Events Suggested for long-term Followup & Summary of Reactor Scrams Encl
ML20206L9831988-11-25025 November 1988
Summary of Operating Reactors Events Meeting 88-45 on 881115.List of Attendees & Handouts Encl
ML20195H0271988-11-25025 November 1988
Summary of Operating Reactor Events Meeting 88-46 on 881122
1997-03-24
[Table view] |
Text
-
r
, JAN 12 1997
~
MEMORANDUM FOR: Harold R. D nton, Director Office of Nuclear Reactor Regulation FROM: Gary M. Holahan, Director Operating Reactors Assessment Staff
SUBJECT:
SUMMARY
OF THE OPERATING REACTORS EVENTS MEETING ON DECEMBER 29, 1986 - MEETING 86-46 On December 29, 1986, an Operating Reactor Events meeting (86-46) was held to brief the Office Director, the Division Directors and their representatives on events which occurred since our last meeting on December 22, 1986. The list of attendees is included as Enclosure 1.
The events discussed and the significant elements of these events are presented in Enclosure 2. Enclosure 3 provides a sumary of those presented events that will be input to NRC's performance indicator program as significant events.
AJ/
Gary M. Holahan, Director Operating Reactors Assessment Staff
Enclosures:
As stated cc w/ Encl.:
See Next Page CISTRIBUTION ggg
'NRC'PDR " - d ORAS Rdg Tarnoff Rdg w/o Enclosure ORAS Members
.PWikR C:PWR:0R E C:BWR:0 RAS g D DJ11R80FL DTONDI % MJVIRG 0 GMHOLAH N
/ / 6/8ff / / fi/8 i/i/ ///2/8
/
t a h'
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W(A$, N h gef ki l
l 8701160336 870112 PDR ADOCK 05000281 S PDR _
'JAN 12 1997 Harold R. Denton cc: R. Vollmer C. Patel J. Taylor L. Rubenstein C. Heltemes E. Licitra R. Starostecki G. Knighton D. Ross A. Bournia T. Murley, Reg. I E. Adensam J. Nelson Grace, Reg. II J. Keppler, Reg. III R. D. Martin, Reg. IV J. B. Martin, Reg. V W. Kane Reg. I S. Ebneter, Reg. I R. Walker, Reg. II C. Norelius, Reg. III E. Johnson. Reg. IV D. Kirsch, Reg. V H. Thompson F. Miraglia R. Bernero
< T. Speis W. Russell T. Novak F. Schroeder W. Houston B. Sheron B. Boger D. Crutchfield E. Rossi G. Lainas V. Benaroya W. Regan D. Vassallo
,, ,E. Jordan
~J. Rosenthal R. Baer E. Weiss R. Hernan S. Showe S. Rubin G. Arlotto l
l
JAN 19 1937 ENCLOSURE 1 LIST OF ATTENDEES OPERATING REACTORS EVENTS BRIEFING (86-46)
DECEMBER 29, 1986 NAME DIVISION NAME DIVISION G. Holahan ORAS/NRR K. Wolley EPER~
C. Patel DPLA/NRR D. Basdekas RES E. Adensam DBL /NRR E. Murphy ORAS/NRR E. Tomlinson DPLB/NRR J. Calvo DPLB/NRR W. Regan DPLB/NRR D. Muller DBL /NRR l J. Kauffman AE00 R. Emch PPAS/NRR G. Dick DPLB/NRR D. Crutchfield PWRB/NRR B. Boger PHFT V. Benaroya PAF0/NRR J. Stolz BWRB/NRR H. Bailey IE/EAB M. Chiramal AEOD G. Klingler IE/0RPB J. Stone IE/VPB K. Eccleston TOSB/NRR J. Rosenthal IE/EAB R. Baer IE/DEPER C. Rossi PWRA/NRR F. Schroeder PWRB/NRR R. Houston DBL /NRR R. Scholl ORAS/NRR M. Caruso ORAS/NRR M. Licitra NRR D. Tarnoff ORAS/NRR l
ENCLOSURE 2 3
OPERATING REACTORS EVENTS BRIEFING 86-46 DECEMBER 29, 1986-i PALO VERDE UNIT 3 DAMAGED ENGINE IN EMERGENCY DIESEL GENERATOR SURRY UNIT 2 FAILURE OF MAIN FEEDWATER PIPE -
UPDATE .
LASALLE UNITS I a 2 FAILURES OF SOR DIFFERENTIAL PRESSURE SWITCHES f
. . , . . - - . , , . . - - , - - _ _ , . . . , - , .__.._.n.,_..._...__ .
1/5/87 PALO VERDE UNIT 3 - DAMAGED ENGINE IN EMERGENCY DIESEL GENERATOR DECEMBER 23, 1986 - (E. LICITRA,-NRR) '
PROBLEM: "B" EMERGENCY DIESEL GENERATOR (EDG) FAILED DURING TEST DUE TO BROKEN PARTS (COOPER ENGINE)
CAUSE: UNKNOWN AT THIS~ TIME SIGNIFICANCE:
MAY AFFECT SCHEDULED MARCH 1987 FUEL LOAD DATE ON UNIT 3 MAY HAVE' GENERIC IMPLICATIONS FOR FACILITIES USING SIMILAR ENGINES l DISCUSSION:
i ON 12/23/86 IN 3RD HOUR OF 24-H0VR TEST, "B" EDG " THREW" '
TWO RODS AND PISTONS FROM N0, 9 BANK OF THE ENGINE THROUGH INSPECTION PORTS l' ENGINE CONTINUED TO RUN FOR ABOUT ONE HOUR AFTER FUEL AND AIR WERE SECURED (PROBABLY DUE TO LEAKING LUBE OIL)
- ENGINE STOPPED BY INJECTING FIRE PROTECTION FOAM INTO ENGINE BLOCK
! BROKEN P' ARTS GATHERED FOR EXAMINATION, SAMPLES TO BE SENT OUT FOR METALLURGICAL ANALYSIS.
! CRANKCASE DRAINED i
CURRENTLY PULLING HEADS OFF CYLINDER BLOCK NO, 9 (AFFECTED BLOCK) AND ADJACENT BLOCKS
!. FOLLOW-UP:
- COOPER AND 18E REPRESENTATIVES TO ARRIVE ONSITE TOMORROW
-NRR, 18E, AND REGION V CONTINUING TO FOLLOW THE EVENT i
l s
, , _ . . . . .- .e,-,,,, ,,c..m-r,y..ru_,--. % ..m.
1/5/87 l
SURRY UNIT 2 - FAILURE OF MAIN FEEDWATER PIPE - UPDATE 1 DECEMBER 9, 1986 - (C. PATEL, NRR)
PROBLEM: AN 18-INCH MAIN FEEDWATER PIPE ON THE SUCTION SIDE OF FEEDWATER PUMP "A" FAILED CATASTROPHICALLY CAUSE: PRELIMINARY INFORMATION ATTRIBUTES CAUSE OF PIPING FAILURE TO EROSION OF PIPE WALL AND A PRESSURE TRANSIENT WHICH OVERLOADED THE THINNED WALL SECTION SIGNIFICANCE:
6 WORKERS INJURED (4 DIED, 2 IN SERIOUS OR STABLE CONDITION)
DISCUSSION:
ERROR IN MAINTENANCE OF MAIN STEAM TRIP VALVE (MSTV) BELIEVED TO BE A CAUSE OF SPURIOUS MSTV CLOSURE EROSION / CORROSION CONTRIBUTED TO FAILURE OF PIPE GEOMETRY, 0XYGEN CONTENT, AND WATER TEMPERATURE AB0VE APPROX.
250*F CONTRIBUTE TO EROSION CORROSION PITTING EXISTS, CORR 0SION PATTERN SIMILAR TO S.G.
J TUBE PROBLEMS LICENSEE PLANS TO DO ANALYSIS TO DETERMINE THE METALLURGICAL DETAILS OF THE FAILURE -
, LICENSEE INSPECTED UNIT 1 MFW SUCTION AND DISCHARGE PIPING.
THINNING BELOW THE CODE MINIMUM FOUND AT ADDITIONAL LOCATIONS.
LICENSEE PLANS TO INSPECT OTHER SYSTEM PIPING AND VISUALLY l INSPECT INSIDE OF MAIN STEAM LINES l
FOLLOW-UP:
i LICENSEE CONTINUING ITS EVALUATION OF TRANSIENT AND PIPE i FAILURE AIT PREPARING THE REPORT NRR, REGION II AND LICENSEE MEETING SCHEDULED FOR 1/12/87 IE INFORMATION NOTICE ISSUED ON DECEMBER 16, 1986 SURRY UNITS 1 & 2 WILL REMAIN SHUTDOWN FOR FIVE TO SEVEN WEEKS INSPECTION RESULTS AT NORTH ANNA FOUND TO BE ACCEPTABLE BY LICENSEE
l 12/29/86 LASALLE UNITS 1 & 2 - FAILURES OF SOR DIFFERENTIAL PRESSURE SWITCHES DECEMBER 18, 1986 - (G. HOLAHAN, NRR)
PROBLEM: 5 FAILURES OF SOR DIFFERENTIAL PRESSURE SWITCHES AT LASALLE UNITS 1 8 2 OVER A 14-MONTH PERIOD SAFETY SIGNIFICANCE:
DIFFERENTIAL PRESSURE SWITCHES IN SEVERAL SAFETY-RELATED APPLICATIONS hAVE FAILED OVER A SHORT PERIOD OF TIME RAISING RELIABILITY AND DESIGN CONCERNS DISCUSSION:
12/18/86 - COMMONWEALTH EDISON REPORTED THAT 5 SOR SWITCH FAILURES HAD OCCURRED SINCE OCTOBER 1985 ALL 5 FAILURES WERE RELATED TO FAILURES OF THE DIAPHRAGM (PIN-HOLE LEAKS OR TEARS)
FAILURES PRIOR TO JUNE 1986 WERE FOUND DURING NORMAL SURVEILLANCE TESTING FAILURES AFTER JUNE 1986 HAVE BEEN FOUND DURING THE AUGMENTED TEST PROGRAM FAILURES HAVE INVOLVED:
- UNIT 2 ADS PERMISSIVE (LEVEL 3)
- UNIT 2 RCIC LINE BREAK PROTECTOR
- UNIT 1 RHR MINI-FLOW ALARM PRIOR TO 12/18/86 LASALLE CONSIDERED THE FAILURES TO BE
" RAND 0M FAILURES" CAUSE OF THE DIAPHRAGM FAILURES IS STILL UNDER INVESTIGATION BY LASALLE AND SOR FOLLOW-UE:
NRR, 18E, AND REGION III ARE CONTINUING TO REVIEW THE FAILURES AND CORRECTIVE ACTION MEETING PLANNED FOR JANUARY 22, 1987 ADDITIONAL INFORMATION ON DIAPHRAGM FAILURES TO BE SUBMITTED l BY CECO ON JANUARY 1, 1987 1
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REACTOR SCRAM
SUMMARY
WEEK ENDING 12/28/86 I. PLANT SPECIFIC DATA DATE SITE UNIT POWER RPS CAUSE COMPLI- YTD YTD YTD CATIONS ABOVE BELOW TOTAL 15% 15%.
12/22/86 WOLF CREEK 1 30 A EQUIP / ELECT NO 5 2 7 12/22/86 ROBINSON 2 100 A EQUIP / ELECT NO 8 2 10 12/22/86 DAVIS BESSE -1 15 A EQUIP / MECHAN. NO O 1 1 12/23/86 MILLSTONE 2 50 A EQUIP / ELECT. NO 4 0 4 12/23/86 SALEM 2 9A EQUIP /LO COND V NO 5 0 8 12/24/86 OYSTER CREEK 1 2A EQUIPMENT NO 1 1 2 12/24/86 PALO VERDE 2 100 A EQUIPMENT YES G 2 10 12/26/86 RIVER BEND 1 100 A EQUIPMENT NO 16 2 18 12/27/86 TURKEY POINT 3 100 M EQUIPMENT YES 6 1 7 12/28/86 SALEM 2 77 A EQUIP /FD REG VL NO 6 3 9 12/20/86 DIABLO CANYON 1 6A EQUIPMENT NO 2 1 3 1
SUMMARY
OF COMPLICATIONS
~~TE, UNIT COMPLICATIONS
- .)
TURVEY POINT 3 PRESSURIZER PORV DID NOT RESET -
PALO VERDE 2 SI PUMPS DEADHEADED l
l
i .
t II. COMPARISDN OF WEEKLY STA"ISTICS WITH INDUSTRY AVERAGES -
SCRAMS FOR WEEK ENDING 11/28/06 ,
CCRAM CAUSE POWER NUMBER 1986 1985 OF WEEKLY WEEKLY
, SCRAMS (5) AVERAGE -
AVERAGE YTD (3) (4)
\
00 POWER >15%
EQUIP. RELATED >15% 7 '
4.3 5.4 (68%)
PERS. RELATED(6) >15% 0 1.8 OTHER(7) >15%
2.0 (25%)
0 0.4 0.6 ( 7%)
oo Subtotal **
7 6.5 B.O C0 POWER <15%
EQUIP. RELATED <15% 4 PERS. RELATED <15% -
0 1.4 1.3 (54%)
0.8 0.9 (38%)
OTHER <15% 0 0.2 0.2 ( 8%)
00 Subtotal **
4 2.4 2.4 000 Total ***
11 8.9 10.4 r
NANUAL VS AUTO SCRANS TYPE NUMBER 1'996 1985 0F WEEKLY WEEKLY SCRAMS AVERAGE AVERAGE YTD MANUAL SCRAMS 1 0.9 AUTOMATIC SCRAMS 1.0 10 7.9 9.4 r
9
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_ NOTES 1.' '
PLANT SPECIFIC DATA BASED ON INITIAL REVIEW OF 50.72 REPOR 4
FOR THE WEEK OF INTEREST. PERIOD IS MIDNIGHT SUNDAY THRO HIDNIGHT SUNDAY SCRAMS ARE DEFINED AS REACTOR PROTECTIVE
.ACTUATIONS WHICH RESULT IN ROD MOTION, AND EXCLUDE PLANNED TESTS OR SCRAMS AS PART OF PLANNED SHUTDOWN IN ACCORD WITH A PLANT PROCEDURE. -
- l. 2.
! RECOVERY C0f1 PLICATED BY EQUIPHENT FAILURES OR PERS UNRELA.TED TO CAUSE OF SCRAM.
- 3.
1985 INFORMATION DERIVED FROM RECENT ORAS PRELIMINAR UNPLANNED REACTOR TRIPS IN 1985. WEEKLY DATA DETERMINE TAKING TOTAL TRIPS IN A GIVEN CATEGORY AND DIVIDING BY 52 WEEK $/ YEAR.
t
,. 4.
IN 1985. TNERE WERE AN ESTIMATED TOTAL OF 541 AUTOMATIC A j
MANUAL UNPLANNED REACTOR TRIPS AT S3 REACTOR $ (NOLDING POWER LICENSES). TNIS YIELDS AN AVERAGE RATE OF 5.B TRIPS REACTOR PER YEAR AND AN AVERAGE RATE OF 10.4 TRIPS ' PER WE FOR ALL REACTORS.
l 5.
l BASED ON 100 REACTORS NOLDING A FULL POWER LICENSE.
l 6.
PERSONNEL RELATED PROBLEMS INCLUDE NUMAN ERROR, PROCEDURAL DEFICIENCIES, AND MANUAL STEAM GENERATOR LEVEL CONTROL PROBLEMS.
7.
'OTHER" INCLUDES AUTOMATIC SCRAMS ATTRIBUTED TO ENVIR I
CAUSES(L1GHTNING),5YSTEMDESIGN,ORUNKNOWNCAU$E.
1 I
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01/M/67 SIBNIFICANT EVENTS FFE9 EN:Y FEFI:F SNCE INDICATOR N:. 3 FLAN! NA"E EVENT EVE \T IES RIPi!0N S GNIFICANCE CIR DATE LASALLE : 12/19/86 FAILERES vF 5 9 D!rFEFENTIAL FFE35'JFE SWITC"ES FUTEt;TIAL FOR OR ACTUAL DE5?ADATICh C: 1
-THE FIVE FAILURES UNCOVERD Ai LASALLE OVER A SAFETY-RELATED E0V!FFENT 14-M] NTH FER:0D WERE FELATE; TO FAILUFES OF TvE DIAFHRAM (FIN 4CLE3 LEAR 1 CR TEMS)
Ui3ALLE 2 12/19/Ss FAILUREE OF SCF DIcFEFENTai FFESSURE SiliCHES - F0iEN'!at FCR CR A:T' J AL DEEWATION 0: 1 THE FIVE FAILUPES L%CCVERED DVER A 14-t] NTH SAFETY 4 ELATE 3 ECUIFFENT FERICS WERE FELATED TO FA! LURES OF TFE DIAFFR G (F:N-t0LES LERS 0; TEM 3)
FALO VEF:E 2 1:! 4/26 cA!LLEE 0: ik0 CF FOUR FFS LC31C P N E9 EUFLIES SCRAM KITH C0"FLICATICN3 1 FES'JLTED IN 14A7.ERTENT FEA TCP SCFM EITH MAIN STEAM ISO.ATION,$AFETY INJECTION ACTUAT!CN,FECIRC:1.ATICN ACTUAi!04 SYSTEM ACTUATION PAL 3 VER;E 3 1:!23/96 tJRIN3 TESTIN3,FAILUFE OF 'B'EI3.Th0 FISics F0 TENT:AL FOR 09 ACTUAL DIEU DA* ION CF 1 F:35 PROFE AND CA*E THFOUGH TwE SIDE OF TFE Sa'ETY-FELATED ECUIFMENT EN3:NE WHICH CONTIN"E2 TO RUN FUELED BV O!L IN CRAnCA!E TUDEYF0!NT; 1:/27/i! LC35 CF TUFBINE GI.EFNOR CCNTROL DIL FRE55URE - SCFA" WITH COMFLICATION3 1 CUR:NSL:AL FELUCTICN THE A'JTC"ATIC F:D INEERTICN FEATU'E OF THE F:D CONTROL SYSTEM FAILED TO IN!ERT R:03 - AFTER THE SCSA" F:EESCRIIER F RV Fa! LED TO FESET