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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20217D4661995-12-0404 December 1995
Summary of 950911 Meeting W/Commonwealth Edison Re Util Commitment to Improving Dresden,Matl Condition at Zion, Declining Performance at Braidwood & Comed Resources
ML20059A6861993-10-0808 October 1993
Discusses 931006 Operating Reactors Events Briefing 93-38 Which Informed Senior Managers from Listed Ofcs of Selected Events That Occurred Since Last Briefing on 930929.Attendees Listed in Encl 1
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
ML20126K0451992-12-14014 December 1992
Summary of Operating Reactors Events Briefing 92-20 on 921209
ML20217D4531992-03-0606 March 1992
Summary of 920305 Meeting W/Commonwealth Edison Co Re Items of Mutual Interest Re Performance of Utilities Nuclear Power Plants.General Topics Included,Performance of Zion & Dresden Stations
ML20217C5121991-07-0303 July 1991
Summary of Operating Reactors Events Meeting 91-12 on 910626
ML20058N9711990-08-0909 August 1990
Summary of Operating Reactors Events Meeting 90-20 on 900808
ML20244D2791989-04-12012 April 1989
Summary of Operating Reactors Events Meeting 89-13 on 890329 to Discuss Events Occurring Since Last Meeting on 890322.Summary of Reactor Scrams for Wk Ending 890326 Encl
ML20235V5051989-02-27027 February 1989
Summary of 890202 Meeting W/Prof Loss Control,Util & NRC at Plant Site Re Resolution of Findings During App R Insp of out-of-svc Safe Shutdown Equipment in High Radiation Areas
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
ML20150B4671988-06-20020 June 1988
Summary of 880608 Facility Site Visit to Attend Exit Meeting for Insp of Emergency Operating Procedures (EOP) Performed by Assigned Region I EOP Team
ML20235Z5891987-10-0808 October 1987
Summary of 871006 Operating Reactor Events Meeting 87-34 Re Events Occurring Since 870929 Meeting.List of Attendees & Presentation Matl Encl
ML20237J1221987-08-20020 August 1987
Summary of Operator Reactors Events Meeting 87-27 on 870818. List of Attendees & Viewgraphs Encl
ML20214F6731987-05-18018 May 1987
Summary of 870514 Meeting W/Util Re Review of Status of Pending Licensing Actions on Util Plants.Meeting Agenda & List of Attendees Encl
ML20207A5221987-05-15015 May 1987
Summary of Operating Reactors Event Meeting 87-13 on 870507 Re Events Which Occurred Since 870428.List of Attendees, Events Discussed & Significant Elements of Events & Summary of Events Presented Encl
ML20215F0151986-12-16016 December 1986
Summary of Operating Reactor Events Meeting 86-43 on 861208. List of Attendees,Events Discussed & Significant Elements of Events Encl
ML20214P8971986-11-25025 November 1986
Summary of Operating Reactors Events Meeting 86-40 on 861117.List of Attendees,Events Discussed,Significant Events Data Sheet & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl
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
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
ML20215G0561986-10-0707 October 1986
Summary of 860911 Meeting W/Bwr Owners Group in Bethesda,Md Re Strawman Generic Requirements for Enhancing BWR Containment Performance in Severe Accident Conditions.Second Technical Exchange Meeting in mid-Nov 1986 Proposed
ML20210J0261986-03-24024 March 1986
Summary of Operating Reactor Events Meeting 86-08 on 860317 to Discuss Events Occurring Since Last Meeting on 860310
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
ML20154P0071986-03-12012 March 1986
Summary of Operating Reactor Events 860303 Meeting 86-06 W/Ornl Re Events Occurring Since 860224 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
ML20151N3021985-12-19019 December 1985
Summary of 851216 Operating Reactor Events Meeting 85-27. Attendance List,Viewgraphs of Events Discussed,Significant Event Elements,Assignment of Followup Review Responsibility & Status of Previous Assignments 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
ML20141E9501985-11-18018 November 1985
Summary of ACRS Subcommittee on Reactor Operations 851104 Meeting in Washington,Dc to Discuss Recent Plant Operating Experience.Fr Notice,Schedule of Discussion & Agenda Encl
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
ML20133E4631985-10-0101 October 1985
Summary of Operating Reactors Events Meeting 85-17 on 850923.List of Attendees & Viewgraphs Encl
ML20141E5521985-09-26026 September 1985
Summary of ACRS Subcommittee on Reactor Operations 850910 Meeting in Washington,Dc to Discuss Recent Operating Occurrences.Fr Notice,Meeting Schedule & List of Meeting Slides Encl
ML20209G6871985-09-0909 September 1985
Summary of Operating Reactor Events Meeting 85-14 on 850826 to Brief Director & Div Directors on Events Which Occurred Since 850813 Meeting.Computer Printout of 1985 Operating Reactor Events Meeting Topics to Date Encl
ML20125C5621978-05-0101 May 1978
Summary of 780309-10 Meeting W/Mark I Owners Group in Bethesda,Md Re Changes in Long Term Program as Reflected in Rev 3 to Mark I Owners Group Program Action Plan
ML20127A4681978-03-0101 March 1978
Summary of 771129 Meeting W/Mark I Owners Group & GE in San Franciso,Ca Re Listed Topics,Including Results & Bases for long-term Program Decision Point 3.List of Attendees & Viewgraphs Encl
ML20148G7781978-01-18018 January 1978
Summary of 780105 Meeting W/Util Re SEP Review of Environ Qualification of Electrical Equipment
ML20141N3471977-05-20020 May 1977
Summary of 770411 Meeting W/Mark I Owners Group & GE to Discuss Structural Acceptance Criteria for Mark I Containment long-term Program.List of Attendees Encl
ML20125C5711976-09-0909 September 1976
Summary of 760812 Meeting W/Mark I Owners Group,Ge,Epri & Techncial Consultants Re Listed Long Term Program Tasks
ML20125C5721976-09-0909 September 1976
Summary of 760819 Meeting W/Mark I Owners Group,(Ge) in Bethesda,Md Re Discussions on Mark I Containment Ltp.List of Attendees Encl
ML20125D6581976-08-18018 August 1976
Summary of 760717-08 Meeting W/Representatives of Mark I Owners Group in Bethesda,Md Re Discussions on Reassessed Content of Mark I Containment LTP & Recently Submitted Responses to Questions on STP Final Rept
ML20235E9641975-08-0606 August 1975
Summary of 750717 Meeting W/Mark I Owners Group Re Role of Mark I Owners Group Program & Schedule for Determining Mark I Safety/Relief Valve & LOCA Dynamic Loads & Impact of Loads on Operating Mark I Plants.List of Attendees Encl
1995-12-04
[Table view]
Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20217D4661995-12-0404 December 1995
Summary of 950911 Meeting W/Commonwealth Edison Re Util Commitment to Improving Dresden,Matl Condition at Zion, Declining Performance at Braidwood & Comed Resources
ML20059A6861993-10-0808 October 1993
Discusses 931006 Operating Reactors Events Briefing 93-38 Which Informed Senior Managers from Listed Ofcs of Selected Events That Occurred Since Last Briefing on 930929.Attendees Listed in Encl 1
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
ML20126K0451992-12-14014 December 1992
Summary of Operating Reactors Events Briefing 92-20 on 921209
ML20217D4531992-03-0606 March 1992
Summary of 920305 Meeting W/Commonwealth Edison Co Re Items of Mutual Interest Re Performance of Utilities Nuclear Power Plants.General Topics Included,Performance of Zion & Dresden Stations
ML20217C5121991-07-0303 July 1991
Summary of Operating Reactors Events Meeting 91-12 on 910626
ML20058N9711990-08-0909 August 1990
Summary of Operating Reactors Events Meeting 90-20 on 900808
ML20244D2791989-04-12012 April 1989
Summary of Operating Reactors Events Meeting 89-13 on 890329 to Discuss Events Occurring Since Last Meeting on 890322.Summary of Reactor Scrams for Wk Ending 890326 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
ML20150B4671988-06-20020 June 1988
Summary of 880608 Facility Site Visit to Attend Exit Meeting for Insp of Emergency Operating Procedures (EOP) Performed by Assigned Region I EOP Team
ML20235Z5891987-10-0808 October 1987
Summary of 871006 Operating Reactor Events Meeting 87-34 Re Events Occurring Since 870929 Meeting.List of Attendees & Presentation Matl Encl
ML20237J1221987-08-20020 August 1987
Summary of Operator Reactors Events Meeting 87-27 on 870818. List of Attendees & Viewgraphs Encl
ML20214F6731987-05-18018 May 1987
Summary of 870514 Meeting W/Util Re Review of Status of Pending Licensing Actions on Util Plants.Meeting Agenda & List of Attendees Encl
ML20207A5221987-05-15015 May 1987
Summary of Operating Reactors Event Meeting 87-13 on 870507 Re Events Which Occurred Since 870428.List of Attendees, Events Discussed & Significant Elements of Events & Summary of Events Presented Encl
ML20215F0151986-12-16016 December 1986
Summary of Operating Reactor Events Meeting 86-43 on 861208. List of Attendees,Events Discussed & Significant Elements of Events Encl
ML20214P8971986-11-25025 November 1986
Summary of Operating Reactors Events Meeting 86-40 on 861117.List of Attendees,Events Discussed,Significant Events Data Sheet & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl
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
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
ML20215G0561986-10-0707 October 1986
Summary of 860911 Meeting W/Bwr Owners Group in Bethesda,Md Re Strawman Generic Requirements for Enhancing BWR Containment Performance in Severe Accident Conditions.Second Technical Exchange Meeting in mid-Nov 1986 Proposed
ML20210J0261986-03-24024 March 1986
Summary of Operating Reactor Events Meeting 86-08 on 860317 to Discuss Events Occurring Since Last Meeting on 860310
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
ML20154P0071986-03-12012 March 1986
Summary of Operating Reactor Events 860303 Meeting 86-06 W/Ornl Re Events Occurring Since 860224 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
ML20151N3021985-12-19019 December 1985
Summary of 851216 Operating Reactor Events Meeting 85-27. Attendance List,Viewgraphs of Events Discussed,Significant Event Elements,Assignment of Followup Review Responsibility & Status of Previous Assignments 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
ML20141E9501985-11-18018 November 1985
Summary of ACRS Subcommittee on Reactor Operations 851104 Meeting in Washington,Dc to Discuss Recent Plant Operating Experience.Fr Notice,Schedule of Discussion & Agenda Encl
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
ML20133E4631985-10-0101 October 1985
Summary of Operating Reactors Events Meeting 85-17 on 850923.List of Attendees & Viewgraphs Encl
ML20141E5521985-09-26026 September 1985
Summary of ACRS Subcommittee on Reactor Operations 850910 Meeting in Washington,Dc to Discuss Recent Operating Occurrences.Fr Notice,Meeting Schedule & List of Meeting Slides Encl
ML20209G6871985-09-0909 September 1985
Summary of Operating Reactor Events Meeting 85-14 on 850826 to Brief Director & Div Directors on Events Which Occurred Since 850813 Meeting.Computer Printout of 1985 Operating Reactor Events Meeting Topics to Date Encl
ML20125C5621978-05-0101 May 1978
Summary of 780309-10 Meeting W/Mark I Owners Group in Bethesda,Md Re Changes in Long Term Program as Reflected in Rev 3 to Mark I Owners Group Program Action Plan
ML20127A4681978-03-0101 March 1978
Summary of 771129 Meeting W/Mark I Owners Group & GE in San Franciso,Ca Re Listed Topics,Including Results & Bases for long-term Program Decision Point 3.List of Attendees & Viewgraphs Encl
ML20148G7781978-01-18018 January 1978
Summary of 780105 Meeting W/Util Re SEP Review of Environ Qualification of Electrical Equipment
ML20141N3471977-05-20020 May 1977
Summary of 770411 Meeting W/Mark I Owners Group & GE to Discuss Structural Acceptance Criteria for Mark I Containment long-term Program.List of Attendees Encl
ML20125C5711976-09-0909 September 1976
Summary of 760812 Meeting W/Mark I Owners Group,Ge,Epri & Techncial Consultants Re Listed Long Term Program Tasks
ML20125C5721976-09-0909 September 1976
Summary of 760819 Meeting W/Mark I Owners Group,(Ge) in Bethesda,Md Re Discussions on Mark I Containment Ltp.List of Attendees Encl
ML20125D6581976-08-18018 August 1976
Summary of 760717-08 Meeting W/Representatives of Mark I Owners Group in Bethesda,Md Re Discussions on Reassessed Content of Mark I Containment LTP & Recently Submitted Responses to Questions on STP Final Rept
ML20235E9641975-08-0606 August 1975
Summary of 750717 Meeting W/Mark I Owners Group Re Role of Mark I Owners Group Program & Schedule for Determining Mark I Safety/Relief Valve & LOCA Dynamic Loads & Impact of Loads on Operating Mark I Plants.List of Attendees Encl
1995-12-04
[Table view] |
Text
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1 1
APR13;m MENORANDUM FOR: Charles E. Rossi, Director Division of Operational Events Assessment j l
1 FROM: Wayne D. Lanning, Chief I Events Assessment Branch I Division of Operational Events Assessment
SUBJECT:
THE OPERATING REACTORS EVENTS MEETING March 29, 1989 - MEETING 89 13 j On March 29, 1989, an Operating Reactors Events meeting (89 13) was held to brief senior managers from NRR, AE0D, RES, Commission Staff, and Regional Offices on events which occurred since our last meeting on March 22, 1989.
The list of attendees is included as Enclosure 1.
The events dise_ssed and the significant elements of these events are presented in Enclosure 2. Enclosure 3 includes four significant events identified for input to NRC's performance indicator program and a sunnary of reactor scrams for the week ending 03/26/89.
Wayne . Lanning, Chief {
Events Assessment Branch Division of Operational Events Assessment
Enclosures:
As stated cc w/ Encl.:
See Next Page DISTRIBUTION centesMHet ,
EAB Reading File Circulating Copy, EAB Staff MLReardon, EAB 63 00udinot, EAB LKilgore, SECY ' P)
Wg/58
.t]$d PDR giV 0FC :EAB/ :C:pB/') GEN : :
.....:. , ...:.......t....:............:............:............:............:...........
NAME :MLReardon :WDLanning :
.....:........____:...... :04///p/89 DATE :04/0'//89 i
0FFICIAL RECORD COPY 8904210252 890412 PDR ORG NRRB PNU d
CC*
T. Hurley, NRR B. Siegel, HRR F. Miraglia, NRR D. Muller, NRR J. Sniezek, NRR E. Jordan, AE0D J. Taylor, EDO !
E. Beckjord, RES W. Russell, RI M. Ernst, RII B. Davis, RIII R. D. Martin, RIV J. B. Martin, RV W. Kane, RI L. Reyes, RII E. Greenman, RIII L. Callan, RIV D. Kirsch, RV
- 5. Varga. NRR B. Boger, hRR G. Lainas, NRR L. Shao, NRR B. Grimes, NRR F. Cor. gel, llRR E. Weiss, AE00 T. 11artin, EDO J. Lieberman, OE J. Guttmann, SECY A. Thadani, !!RR S..Pubin, AE0D J. Forsyth, INPO R. Barrett, NRR l-l . Harper, AE00 R. Newlin, GPA
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o UNITED STATES h
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- e' NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555
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APR 121283 1
{
MEMORAllDUM FOR: Charles E. Rossi, Director '
Division of Operational Events Assessment FROM: Wayne D. Lanning, Chief Events Assessment Branch Division of Operational Events Assessment
SUBJECT:
THE OPERATING REACTORS EVEliTS MEETING March 29, 1989 - MEETIllC 89-13 On March 29, 1989, an Operating Reactors Events meeting (89-13) was held to
-brief senior managers from NRR, AE00, RES, Commission Staff, and Regional Offices on events which occurred since our last meeting on March 22, 1989.
The list of attendecs is included as Enclosure 1.
The events discussed and the significant elements of these events are presented in Enclosure 2. Enclosure 3 includes four significant events identified for input to NRC's performance ir:dicator program and a summary of reactor scrams for the week ending 03/26/89.
M Wayne D. Lanning, Chief Events Assessment Branch Division of Operational Events Assessment
Enclosures:
As stated
, cc w/ Encl.:
See Ncyt Page l
l i E_ _ -- - - i
" . ENCLOSURE 1 LIST OF ATTENDEES OPERATING REACTORS EVENTS BRIEFING (89-13)
March 29, 1989 NAME ORGANIZATION NAME ORGANIZATION J. Sniezek DD:NRR K. Kniel RES/DSIR M. Fields .NRR/CPPD J. Raleigh NRR/DOEA C. Lobel. NRR/00EA J. Roe NRR/DLPQ S. Varga NRR/DRP W. Lanning NRR/D0EA M. Virgilio NRR/DRP B. Siegel NRR/PD3-2 J. Clifford OEDO A. Vietti-Cook OCM/LZ l L.J. Callan RIV J. Dyer NRR/DRIS P. Bobe AEOD/DSP D. Muller hRR/PD3-2 i
I i
- _. _ _ _ _ _ _ . _ _ _ _ . . _ _.___._____i____
^*
ENCLOSURE-2 OPERATJL1R REACTORS EVENTS BRIEFIt'G 89-13 EVEf!TS ASSESSMENT BRANCH
.LOCAT10fl: 12B-11, WHITE FLINT WEDNESDAY, MARCH 29, 1989, 11:00 A.M.
DRESCEN UNIT 3 SCRAM AND LOSS OF 0FFSITE POWER I
1 1
89-13 l DRESDEN UNIT 3 SfEAM AND LOSS OF 0FFSITE POWER MARCH 25, 1989
)
i EEDhlff THE TRIP OF AUXILIARY TRANSFORMER #T32 RESULTS IN A REACTOR SCRAM ON HIGH WATER LEVEL DUE TO THE START OF A STANDBY HAIN FEEDWATER PUMP.
ADDITIONALLY, UPON THE REACTOR TRIP, THE MAIN POWER TRANSFORMER
& AUXILIARY TRANSFORMER #T31 DEENERG12ED CAUSING THE LOSS OF ALL (NON-EMERGENCY) ONSITE E OFFSITE AC POWER FOR UNIT 3.
EhDSE THE INITIATING AUXILIARY TRANSFORMER #T32 ANCMALY RESULTING IM llS FAILURE WAS DUE TO A FAULT ON 345 KV CIRCUIT BREAKER OCB-0-1E.
SAFETY SIGH 1EliaufE THE EVENT APPEARS TO BE OF MINIMAL SAFETY SIGNIFICANCE SINCE ALL APPROPRIATE SYSTEMS WEPE AVAILABLE TO BRING THE UNIT TO COLD SHUTDOWN IN A SAFE MANNER.
DISCUSSIDD o ON MARCH 25, 19ES AT 01:33 HRS (CST) WHILE AT 89% POWER &
STEAEY STATE, lhE UtilT EXPERIENCED AN AUXILI ARY TRANSFORMER
(#T32) TRIP DUE TO A LINE SIDE FAULT ON 345 KV CIRCulT BREAKER OCB C-15.
o THE AUXILIARY TRANSFORMER #T32 ISOLATED RESULTING IN THE AUTC TRANSFER OF HOUSE LOADS TO THE UNIT AUXILIARY TRANSFORMER
- T31, c AT THAT TIME, 2 0F 3 MAIN FEEDWATER PUMPS (MFP) "A" & "B" WERE OPERATING WITH THE THIRD, "C" IN STANDBY.
o THE "P MFP TRIPPED ON BUS #T3: LOW VOLTAGE DURING THE AUTO-TRANSFER DUE TO A FAILED AUX 1LIARY CONTACT, CONTACT: J. RALEIGli SIGEVENT: _NO
REFERENCES:
50.72 #'s 15117, 151]E, 15119, PNG-III-89-21, MORNING l REPORT Of MARCH 27, 2005 l
l L _ - - _ - - - - - - - - _ _ - - - - - _ _ - - _ - - - _ - - _ - _ _ _ _
' DRESDEN UNIT 3 89 '
~
O. REACTOR VESSEL LEVEL REACHED 14" BELOW NORMAL AND BEGAN TO RECOVER WITl1 THE AUTO START OF THE "C" MFP.
o WITH THE "C" MFP RUNNING, THE OPERATOR BEGAN TO CLOSE THE "B" FRV T0 COMPENSATE FOR THE FULL OPEN "A" FRV, T111S WAS UNSUCCESSFUL'IN STOPPIhG LEVEL INCREASE.
o REACTOR VESSEL CONTINUED TO INCREASE TO 25" ABOVE NORMAL GENERATING A MAIN TURBINE TRIP AND TRIPPING THE OPERATING MPFs.
o Tile REACTOR TRIPFED FROM 89% POWER DUE TO MAIN TURBINE STOP VALVE CLOSURE AS EXPECTED.
O THE MAIN PCWER TRANSFORMER a AUXILIAFY TRANSFORMER #T31 DEENERG12ED NHEN THE FEACTOR SCRAMMED CAUSIllG LOSS OF BCTH (Il0N-EMERGENCY) ONSITE 8 CFFSITE AC POWER TO UNIT 3.
o UNIT 3 ANC THE UNIT 2/3 SWING DIESEL AUTO STARTED DUE TO BUS UNDERVOLTAGE CONDITIGNS AND RECOVERED ESSENTIAL BUSSES 34-1 E 33-1.
o LPCI SWING EOSSES, 39-7 AND 38-7, ATTEMPTED TO TRANSFER FROM BUS #39 T0-BUS #38.
CONSIDERED. A MALFUNCT10l! DUE TO THE FAllVRE OF A TIMED-0UT UV RELAY TO RESET.
- ADDITIONALLY, THE TRAhSFER FAILED BECAUSE OF FEEDER BREAKER Lil;KAGE BEING OUT OF ALIGNMEl:T.
LPCI WAS NOT REQUIREE THROUGHOUT THE EVENT.
c OPERATOR MAhUALLY ISOLATED THE MSIV's FOR INVENTORY CONTROL INITIATING THE ISOLATION CONCENSER FOR PRESSURE CONTROL.'
o- HPCI WAS MANUALLY INITIATED TO RESTORE REACTOR VESSEL LEVEL AND THE UNIT WAS BROUGHT TO A STABLE COLD SHUTDOWN.
c THE OPERATOR WAS ABLE TO RETURN LEVEL TO 1 INCH FROM THE NORMAL RANGE (+30 TO +35) AND MAINTAINED BETWEEN 800 AND 900 PSIG WITHOUT LIFTING ANY RELIEF VALVES.
o DURING OPERATION OF THE ISOLATION CONDENSER, MAKELlP WAS REQUIRED TO BE TRANSFERRED FROM CLEAN DEMINERALIZED WATER TO TiiE CST (APPROX. 50,00C GAL TOTAL, 10,CCO FROM Tile CST) i
4 eDRESDEtk UtilT 3 89-13 l
' 4 I
o RESULTED IN A RELEASE VIA THE ISOLATION CONDENSER VENT OF 10-20 MILL 1-CURIES OF MIXED ACTIVATION PROEUCTS'IN STEAM AND )
ENTRAINED WATER.
o LOW LEVEL CONTAMlflATION SPREAD DVER AN EXTENSIVE AREA INSIDEL THE PROTECTED AREA AND OVER A SMALLER AREA (PARKING LOT) JUST.
OUTSIDE'THE PROTECTED AREA FENCE.
O LICENSEE EMPLOYED PREVENTIVE MEASURES PRIOR TO RELEASE, NO PERSONNEL CONTAMINATED.
O AT 8:55, THE LICENSEE RES10 RED OFFSITE POWER, SECURED DIESELS.
AND INITIATED SHUTDOWN TO COLD CONDITIONS.
0FFSITE POWER COULD HAVE BEEN REESTABLISHED EARLIER.
LPCI SWING Bft TROUBLESHOOTING IN PROGRESS AND OCE E-15 REPAIRS COMM F ED MARCH 27, 1989.
SJMIL AR EVESIS o- ISOLATION CONDENSER USE THAT DOES NOT REOUIRE THE TRAliSFER FROM CLEAN DEMINERALIZED WATER HAS, IN THE PAST, RESULTED IN CONTAfi!NATED RELEASE DUE TO THE USE OF CST WATER IN THE MID-70's. ,
o CN JAhUARY 3, 1981, DRESDEN UNIT 2 EXPERIENCED AN EVENT IN WHICH
. CST WATER RESIDUE WAS INTRODUCED INTO THE CLEAN DEMINERALIZED WATER DUE TO A CRUD EURST IN THE.ISCLATION CONDENSER.
THIS EVENT RESULTED IN fi1XED ACTIVATION PRODUCTS BEING RELEASED ANL SPREAD INTO SIMILAR AREAS.
Ef1ATED I_SSUES o DURING THE UfIT 3 EVENT, UNIT 2 REPORTED AN ALERT DUE TO THE LOSS OF ALL ANNUNCIATORS ON CONTROL ROOM ECCS PANEL #902-3.
CAUSE DETERMINED TO BE A BLOWN FUSE DUE TO A BATTERY CHARGER TRIP DN A GROUND FAULT.
UNIT 2 8 UNIT 3 GRIDS WERE C0fiPLETELY JSOLATED FROM EACH OTHER AT TIME OF OCCURRENCE.
ALERT STATUS CIVEN WHEN ANNUNCIATOR PANEL LOST FOR MORE THAN 5 MihbTES.
DETERMJNED NCT TO BE A CONSEQUENCE OF THE UNIT 3 EVENT.
f.<
h DRESLEN UNIT:3 s ' ~89-13'
.o TliE CUESTION WAS RAISED.WHETHER THE UNIT'3 EVENT SHOULD HAVE BEEN REPORTED AS AN UNUSUAL EVENT (UE),
AN UE IS NOT ASSIGNED UNLESS THE LOSS OF THE AUXILIARY TRANSFORMER IS PROJECTED TO OR ACTUALLY EXCEEDS THE TECH i SPEC LCO REPAIR TIME OF 7 DAYS,
- NO UE~ DESIGNAT10f' IS WARRAhTED, ,
L F0LLOliUE REGIONAL PERSONNEL HAVE EEEN DISPATCHED TO SITE FOR FOLLOWU P 0F THE EVENT-ANL~.TO OBSERVE CORRECTIVE AND RESTORATIVE ACTIONS. EAB HAS LETERillfiEE THAT NO FURTHER FOLL0 HUP IS WARRANTEL, E
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f.s 04/03/89= -i FERFORMANCEINDICA70RSSIGNIFICANTEVENTS : ENCLOSURE 3
- ; PLAN 7 NAMk - EVENT EVENT DESCRIPTION. OTR SIGNIFICANCE.
DATE SIABLOCANYON1&2 01/17/89 UNREC06N!!ED INOPERABILITY Of AUI FEEDWTER SYSTEM DUE TO 0 POTEWilAL FOR OR ACTUAL DE6RADAT!DN CLOSURE OF ONE OF TWO REDUNDANT STEAM SUPPLY VALVES TO . OF SAFETY-RELATED EQUIPMENT.
TURBINE. '
- LASALLE 1 & 2 ' 1t/02/89 FAULT ON UNIT 2 SAT RESULTED IN UNIT 1 REACTOR TRIP W!iH 1 UNEIPECTED PLANT RESPONSE 10 #1tt SUBSEQUENT E3UlFMENT MALFUNCTIONS: INSTRUMENT AIR,. OFCONDIT!DNS.
F C CESS CCMPUTER, CREVAS, ALTERNATE RPS 5REAXERS, AND A RECIFC FCV. AIT TO SITE.
NINE MILE F0lNT 2 02/23/99 LOSS OF OFFSITE F0WER COMBINED WITH SINGLE FAILURE IN 1 1 POTENTIAL FOR OR ACTUAL DE6RADATION' ED6 COULD LEAD TO LCSS OF :nd BECAUSE OF A FAILURE TO' 0F SAFETY-RELATED E0VIPMENT.
I ISCLATE SW TRAINS AND SUBSEQUENT ED6 UNDERC00 LING..
CCNUSED Bf CONTROL LOGIC DESIGN FLAW WHICH SHOULD AUICMATICALLY ISOLATE THE 2 SW DIV.
SAN ONCFFE 1 03/02/59 DESISN EFICIENCY W!iH THE EDS LDAD SEQUENCER LC610. 0 POTENTIAL FOR OR ACTUAL DEGRADAi!0N OF SAFETY-RELA 15D EQU!FMENT.
- . _ _ - ____.________-_-.____.__m____ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ . _ _ _ _ _ . _ _ _ _ _ _ . _ _ _ _
+
, . REACTOR SCRAM
SUMMARY
NEEKENDING 03/26/89
- 1. PLANT SPECIFIC DATA DATE SITE UNIT POWER SIGNAL CAUSE COMPLI- -YTD YTD VfD CAT 10NS ABOVE BELOW TOTAL 151 151 03/22/89 ROBINSON 2 100 A- PERSONNEL NO 1 0 1
.03/22/89 FORT ST. VRAIN 1 0A EQUlPMENT ND 0 1 1
- 03/23/89 FORT 51. VRAIN 1. OA EQUIPMENT. NO 0 2' 2 03/23/89 FORT ST.VRAIN 1 0A- EQUlPMENT NO 0' 1 1 03/25/09 DRESDEN .3 89 A EQUIPMENT NO 1 0 1 h
9
/.-), , . . . ,. ., .
< NOTES
~
- 1. PLANT SPECIFIC: DATA BASED ON IlllTIAL REVIEll 0F 50.72 REPORTS FOR THE~ WEEK OF INTEREST. ' PERIOD IS MIDNIGHT SUNDAY THROUGH L MIDNIGHT SUNDAY.- SCRAMS ARE DEFINED AS REACTOR PROTECTIVE.
ACTUATIONS WHICH RESULT'IN.R0D MOTION, AND EXCLUDE PLANNED.-
TESTS OR~ SCRAMS AS PART OF PLANNED SHUTDOWil IN ACCORDANCE llITH A PLANT PROCEDURE. THERE ARE 111 REACTORS HOLDING AN
~
- OPERATING LICENSE.
' 2. COMPLICATIONS: REC 0VERY COMPLICATE 0 BY'EQUIPMENTIFAILURES OR:
PERSONNEL ERRORS UNRELATED TO CAU5E OF SCRAM.
- 3. . PERSONNEL RELATED PROBLEMS IfiCLUDE HUMAN ERROR, PROCEDURAL DEFICIENCIES,. AND MANUAL STEAli GENERATOR LEVEL CONTROL PROBLEMS.
4.- ' 0THER" INCLUDES- AUTOMATIC SCRAMS ATTRIBUTED T0' Et!VIRONMENTAL -
CAUSES (LIGHTNING), SYSTEM PESIGH,'OR UNKN0tlN CAUSE. l
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