Letter Sequence Other |
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Results
Other: ML20195G001, ML20196G562, ML20199G257, ML20202F772, ML20207A732, ML20217D579, ULNRC-03920, Forwards non-proprietary Rev 3 to BAW-10219, Electrosleeving Qualification for PWR Recirculating SG Tube Repair, ULNRC-04004, Forwards Proprietary Thermal Stability Background Data Along with Time/Temp Graph Requested in 990402 Telcon with NRC & Contractor,Argonne Natl Lab.Proprietary Info Withheld, ULNRC-04005, Forwards Proprietary & non-proprietary White Paper Entitled, Evaluation of Severe Accident Simulation, as Addl Info to Facilitate Approval of Requested Amend to Revise TS to Use Repair SG Tubes.Proprietary Info Withheld,Per 10CFR2.790, ULNRC-04034, Forwards Amerenues Risk Evaluation Summary & Provides Listing of Other Documents Which Have Been Previously Provided to Support Evaluation of Electrosleeves at High Temp Severe Accident Conditions
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MONTHYEARML20155B5791998-10-27027 October 1998 Proposed Tech Specs for Use of Electrosleeves on Two Cycle Basis Project stage: Request ULNRC-03920, Forwards non-proprietary Rev 3 to BAW-10219, Electrosleeving Qualification for PWR Recirculating SG Tube Repair1998-11-13013 November 1998 Forwards non-proprietary Rev 3 to BAW-10219, Electrosleeving Qualification for PWR Recirculating SG Tube Repair Project stage: Other ML20198D1271998-12-16016 December 1998 Forwards RAI Re Request for Amend to TS & Bases to Allow Installation of Framatome Electrosleeves in Plant,Unit 1 SG for Max of 2 Operating Cycles Project stage: RAI ML20199G2571999-01-11011 January 1999 Provides Responses to 981216 RAI Re 981027 Amend Request to Revise TSs to Use Electrosleeves to Repair SG Tubes. Proprietary Encl Withheld Project stage: Other ML20202F7721999-01-29029 January 1999 Provides Changes to Further Clarify That Electrosleeve Use Is Limited to 2 Cycles Following Installation of First Electrosleeve Project stage: Other ML20205J6591999-04-0606 April 1999 Summary of 990318 Meeting with Union Electric & Framatome Technologies Re Electrosleeve Amend Application for Callaway Npp.List of Telcon Participants & Union Electric Fax with Callaway Probability Info Encl Project stage: Meeting ULNRC-04005, Forwards Proprietary & non-proprietary White Paper Entitled, Evaluation of Severe Accident Simulation, as Addl Info to Facilitate Approval of Requested Amend to Revise TS to Use Repair SG Tubes.Proprietary Info Withheld,Per 10CFR2.7901999-04-0707 April 1999 Forwards Proprietary & non-proprietary White Paper Entitled, Evaluation of Severe Accident Simulation, as Addl Info to Facilitate Approval of Requested Amend to Revise TS to Use Repair SG Tubes.Proprietary Info Withheld,Per 10CFR2.790 Project stage: Other ULNRC-04004, Forwards Proprietary Thermal Stability Background Data Along with Time/Temp Graph Requested in 990402 Telcon with NRC & Contractor,Argonne Natl Lab.Proprietary Info Withheld1999-04-0707 April 1999 Forwards Proprietary Thermal Stability Background Data Along with Time/Temp Graph Requested in 990402 Telcon with NRC & Contractor,Argonne Natl Lab.Proprietary Info Withheld Project stage: Other ULNRC-04034, Forwards Amerenues Risk Evaluation Summary & Provides Listing of Other Documents Which Have Been Previously Provided to Support Evaluation of Electrosleeves at High Temp Severe Accident Conditions1999-05-17017 May 1999 Forwards Amerenues Risk Evaluation Summary & Provides Listing of Other Documents Which Have Been Previously Provided to Support Evaluation of Electrosleeves at High Temp Severe Accident Conditions Project stage: Other ML20207A7321999-05-20020 May 1999 Submits Record of 990429 Telcon with Union Electric Personnel Re Electrosleeve Amend Application for Callaway Plant,Unit 1.Info Provided by Ue Included in Attachments 1 & 2.List of Personnel That Participated in Telcon Encl Project stage: Other ML20207G5151999-06-0808 June 1999 Summary of 990422 Meeting with Ue & NRC Staff Re Electrosleeved Repaired SG Tubes During Beyond Design Basis Accidents.List of Meeting Attendees,Nrc Staff Meeting Presentation Matls & Ue Meeting Presentation Matls Encl Project stage: Meeting ML20195G0011999-06-11011 June 1999 Submits Record of 990430 Telcon Re Nondestructive Exam ISI Issues,Including Increased Sensitivity of UT Exam Performed After Electrosleeve Installation Versus Eddy Current Test Performed Prior to Sleeve Installation Project stage: Other ML20196G5621999-06-21021 June 1999 Informs NRC of Implementation of Amend 132 to Callaway License NPF-30 to Allows Installation of Electrosleeves for Steam Generator Tube Repair for Two Cycles Following Installation of First Electrosleeve Project stage: Other ML20217D5791999-09-15015 September 1999 Provides Formal Documentation of Reviews & Discussions Re Technical Ltr Rept for Proprietary Info.Review of Ltr Was Discussed in Telcon & Via e-mail Messages. Summary of Telcons as Documented on 990708,included Project stage: Other 1999-04-07
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Category:INTERNAL OR EXTERNAL MEMORANDUM
MONTHYEARML20211H4441999-08-27027 August 1999 Notification of Significant Meeting with Util on 990916 & 17 in Arlington,Tx to Improve Utility & NRC Understanding of Industry & Regulatory Perspectives on Current Issues ML20195G0011999-06-11011 June 1999 Submits Record of 990430 Telcon Re Nondestructive Exam ISI Issues,Including Increased Sensitivity of UT Exam Performed After Electrosleeve Installation Versus Eddy Current Test Performed Prior to Sleeve Installation ML20207C3391999-05-26026 May 1999 Forwards NRC Approved Operator Licensing Exam Facility Outline & Initial Exam Submittal for Retake Exam Administered on 990416 ML20207A7321999-05-20020 May 1999 Submits Record of 990429 Telcon with Union Electric Personnel Re Electrosleeve Amend Application for Callaway Plant,Unit 1.Info Provided by Ue Included in Attachments 1 & 2.List of Personnel That Participated in Telcon Encl ML20205R8791999-04-20020 April 1999 Notification of 990422 Meeting with Util in Rockville,Md to Discuss NRC Staff Review of Util Amend Application Requesting Approval of Electrosleeve Steam Generator Tube Repair ML20205K5601999-04-0707 April 1999 Notification of 990422 Meeting with Util in Rockville,Md to Discuss NRC Draft Safety Evaluation for Union Electric Co Amend Application Requesting Approval of Electrosleeve SG Tube Repair ML20204B3001999-03-15015 March 1999 Notification of Licensee Meeting with Util in Steedman,Mo on 990401 to Discuss Results of Plant Performance Review Completed on 990211.Meeting Open to Public ML20196F7121998-12-0101 December 1998 Notification of 981203 Meeting with Util to Discuss Spent Fuel Pool Structural Evaluations Performed by Wolf Creek Nuclear Operating Corp & Union Electric Co in Support of Increasing Spent Fuel Pool Capacity at Plants ML20154B7031998-09-29029 September 1998 Notification of 981014-15 Meeting with Utils in Rockville,Md to Discuss Wolf Creek & Union Electric Co Proposed TS Amends to Support Mod to Increase SFP Capacity at Wolf Creek & Callaway Plants ML20249C1321998-06-23023 June 1998 Notification of 980707 Meeting W/Union Electric Co in Rockville,Md to Discuss Status of NRC Review of Util Proposed Amend to Allow Use of Framatome Electrosleeve in Callaway Plant Sg,As Outlined in from NRC ML20248M0741998-06-0303 June 1998 Notification of Cancellation of 980611 Meeting W/Util in Rockville,Md to Discuss Status of NRC Review of Ue Proposed Amend to Allow Use of Framatome Electrosleeves in Callaway SG as Outlined in from NRC to Ue ML20248J6191998-06-0303 June 1998 Notification of 980615 Meeting W/Util in Region IV Ofc to Discuss Update on Maint Rule Program Changes & Improvements. Agenda Attached ML20248J0741998-06-0303 June 1998 Notification of 980611 Meeting W/Union Electric Co in Rockville,Maryland to Discuss Status of NRC Review of Ue Proposed Amend to Allow Use of Framatome Electrosleeves in Callaway Sgs,As Outlined in from NRC to Ue ML20248F6311998-05-29029 May 1998 Notification of Significant Licensee Meeting W/Util on 980616 in Arlington,Tx to Discuss Licensee Performance ML20217Q6011998-04-29029 April 1998 Notification of 980513 Meeting W/Wolf Creek Nuclear Operating Corp & Union Electric Co to Discuss Proposed TS Amends to Support Mod to Increase Spent Fuel Pool Capacity at Wolf Creek & Callaway ML20217F9511998-03-30030 March 1998 Notification of 980402 Meeting W/Util in Rockville,Md to Discuss NRC Staff Questions Re Changes Made to Callaway Emergency Plans ML20236N6081998-03-11011 March 1998 Responds to Task Interface Agreement Re Callaway Performance of During Shutdown Surveillance Test Requirements W/Unit at-power ML20199C1531998-01-16016 January 1998 Notification of 980129 Meeting W/Util in Rockville,Md to Discuss NRC Staff Questions Re Licensee Interpretation of TS Required Shutdown Surveillance Testing ML20198C3801998-01-0202 January 1998 Notification of Licensee Meeting W/Util on 980121 to Discuss Radiation Protection Activities ML20203C4321997-12-0505 December 1997 Notification of 971209 Meeting W/Util to Discuss NRC Staff Questions Re Recent Licensee Submittals Associated W/Use of Framatome Electrosleeves ML20202B0711997-11-21021 November 1997 Notification of 980106 Meeting W/Util in Arlington,Texas to Discuss EP Plan Activities ML20199F5021997-11-14014 November 1997 Notification of 971120 Meeting W/Union Electric Co & Framatome Technologies in Rockville,Maryland to Discuss NRC Staff Questions Re Recent Licensee Submittals Associated W/Use of Framatome Electrosleeves ML20212E8361997-10-30030 October 1997 Notification of Licensee Meeting W/Util on 971110 to Discuss Emergency Preparedness Plan Activities ML20217E0951997-09-26026 September 1997 Notification of 971007 & 08 Meeting W/Une in Monroeville,Pa to Discuss Shutdown Margin & Other Calculations Affected by Axial Offset Anomaly Being Experienced by Plant IR 05000483/19973011997-08-20020 August 1997 Forwards NRC Operator Licensing Exam Rept 50-483/97-301 (Including Completed & Graded Tests) for Tests Administered on 970627 ML20217H4351997-08-0101 August 1997 Notification of 970813 Meeting W/Listed Participants in Rockville,Md to Discuss NRC Questions Re Recent Licensee Submittals Associated W/Use of Framatome Electrosleeves ML20149G8571997-07-16016 July 1997 Notification of Licensee Meeting W/Util on 970815 to Discuss Failure to Perform SE IAW 10CFR50.59 Requirements Identified in Insp Rept 50-483/97-05 ML20141M0061997-05-30030 May 1997 Notification of Licensee Meeting W/Util in Steedman,Mo on 970702 to Discuss Results of Latest SALP ML20137X0131997-04-17017 April 1997 Notification of 970506-07 Meeting W/Une & Framatome Technologies in Toronto,Ontario,Canada to Discuss Destructive Exam Techniques Used at Ontario Hydro Technologies Pertaining to Installation of Electrosleeves ML20137W9811997-04-17017 April 1997 Notification of 970513-14 & 15 Meeting W/Une & Framatome Technologies in Lynchburg,Va to Witness Use of Ultrasonic Testing Equipment & Review Analysis Methods Pertaining to Framatome Electrosleeving Process ML20137Y2301997-04-16016 April 1997 Informs That Operator Licensing Exams Administered on 970224 -28 at Facility.Exam Rept Encl ML20137J6701997-04-0202 April 1997 Forwards Info Obtained Form 970402 Telcon Re GL-96-06 ML20137J6451997-04-0202 April 1997 Forwards Document on Docket 05000483 for Callaway Plant, Unit 1 ML20137C9201997-03-20020 March 1997 Forwards Documentation of Meeting Conducted in Region 4 Office on 970225 to Discuss NRC Enforcement Policy as Applied to Nonescalated Enforcement ML20134A8841997-01-24024 January 1997 Notification of 970220 Meeting W/Union Electric in Rockville MD to Discuss Union Preparation for 970609-12 Operational Safeguards Response Evaluation at Callaway Plant ML20134A0141997-01-22022 January 1997 Discusses 970115 Meeting W/Ue to Discuss Proposed TS Amend That Would Allow Electrosleeving of SG Tubes at Plant.List of Attendees & Nonproprietary Version of Handout Matl Encl ML20132E2521996-12-18018 December 1996 Notification of 970114 Meeting W/Util in Rockville,Md to Discuss Union Electric Co Plans for Reload Design to Callaway Plant ML20132E5701996-12-17017 December 1996 Notification of 970115 Meeting W/Licensee in Rockville,Md to Discuss Nondestructive Exam Qualification Efforts to Date in Support of Staff Review of Amend Request That Would Allow Use of Framatome Electrosleeving Technology ML20134B5061994-04-13013 April 1994 Submits Plants Which Will Be Discussed in Categories Indicated Re Results of Screening Meetings for June 1994. Partially Deleted ML20058G5441993-11-30030 November 1993 Notification of 931208 Meeting W/Util in Rockville,Md to Discuss Proposed TS Improvement Program to Be Jointly Undertaken by Wolf Creek Nuclear Operating Corp & Union Electric Co ML20058F4391993-11-26026 November 1993 Notification of 931209 Meeting W/Util in Rockville,Md to Discuss Possible Replacement of Steam Generator Hydraulic Supports W/Other Types of Mechanical Components Supports ML20056H0061993-08-31031 August 1993 Notification of 930908 Meeting W/Union Electric Company & Westinghouse Electric Corp in Rockville,Md to Discuss Licensee Plans & Scheduled Activities Re Upcoming Callaway Sixth Refueling Outage & 7 Cycle Reload ML20056G4341992-10-20020 October 1992 Informs That AIT Being Dispatched to Plant in Accordance W/ NRC Manual Chapter 0325.Forwards Final Charter to Evaluate Events Associated w/921016-17 Plant Loss of Annunciator Events ML20245L5291989-05-0303 May 1989 Summarizes NRR Insp of Noble Gas Monitors at Plant on 890412,to Obtain Understanding of Monitor Sys Improvement ML20245H8521989-04-28028 April 1989 Notification of 890503 Meeting W/Util in Rockville,Md to Discuss Proposed Revs to Containment Vessel Structural Integrity Spec ML20245K2981989-03-0303 March 1989 Forwards FEMA Exercise Rept for 880606 partial-scale Exercise at Plant.Exercise Identified Six Deficiencies Which Have Been Adequately Corrected,Five Through Plan Revs & One Through Successful Remedial Exercise ML20195G2581988-11-0808 November 1988 Partially Deleted Memo Re Commissioner Carr 880113-15 Visit to Plant,Meeting W/State of Mo Officials & Visit to Mallinckrodt,Inc ML20154P3091988-09-27027 September 1988 Notification of 881005 Meeting W/Util in Rockville,Md to Discuss Licensee Presentation of Steam Generator Level Reactor Trip Mod for Plant ML20151H4281988-04-15015 April 1988 Informs of D Shepard Participation in Tabletop Review of Simulator Certification During Wk of 880425,per 880413 Telcon ML20151D4271988-03-24024 March 1988 Submits Summary of Actions Discussed at ACRS 335th Meeting on 880310-12 in Washington,Dc,Including ACRS Repts/ Recommendations,Other Actions,Agreements,Assignments & Requests & Future Agenda 1999-08-27
[Table view] Category:MEMORANDUMS-CORRESPONDENCE
MONTHYEARML20211H4441999-08-27027 August 1999 Notification of Significant Meeting with Util on 990916 & 17 in Arlington,Tx to Improve Utility & NRC Understanding of Industry & Regulatory Perspectives on Current Issues ML20195G0011999-06-11011 June 1999 Submits Record of 990430 Telcon Re Nondestructive Exam ISI Issues,Including Increased Sensitivity of UT Exam Performed After Electrosleeve Installation Versus Eddy Current Test Performed Prior to Sleeve Installation ML20207C3391999-05-26026 May 1999 Forwards NRC Approved Operator Licensing Exam Facility Outline & Initial Exam Submittal for Retake Exam Administered on 990416 ML20207A7321999-05-20020 May 1999 Submits Record of 990429 Telcon with Union Electric Personnel Re Electrosleeve Amend Application for Callaway Plant,Unit 1.Info Provided by Ue Included in Attachments 1 & 2.List of Personnel That Participated in Telcon Encl ML20205R8791999-04-20020 April 1999 Notification of 990422 Meeting with Util in Rockville,Md to Discuss NRC Staff Review of Util Amend Application Requesting Approval of Electrosleeve Steam Generator Tube Repair ML20205K5601999-04-0707 April 1999 Notification of 990422 Meeting with Util in Rockville,Md to Discuss NRC Draft Safety Evaluation for Union Electric Co Amend Application Requesting Approval of Electrosleeve SG Tube Repair ML20204B3001999-03-15015 March 1999 Notification of Licensee Meeting with Util in Steedman,Mo on 990401 to Discuss Results of Plant Performance Review Completed on 990211.Meeting Open to Public ML20196F7121998-12-0101 December 1998 Notification of 981203 Meeting with Util to Discuss Spent Fuel Pool Structural Evaluations Performed by Wolf Creek Nuclear Operating Corp & Union Electric Co in Support of Increasing Spent Fuel Pool Capacity at Plants ML20154B7031998-09-29029 September 1998 Notification of 981014-15 Meeting with Utils in Rockville,Md to Discuss Wolf Creek & Union Electric Co Proposed TS Amends to Support Mod to Increase SFP Capacity at Wolf Creek & Callaway Plants ML20249C1321998-06-23023 June 1998 Notification of 980707 Meeting W/Union Electric Co in Rockville,Md to Discuss Status of NRC Review of Util Proposed Amend to Allow Use of Framatome Electrosleeve in Callaway Plant Sg,As Outlined in from NRC ML20248J0741998-06-0303 June 1998 Notification of 980611 Meeting W/Union Electric Co in Rockville,Maryland to Discuss Status of NRC Review of Ue Proposed Amend to Allow Use of Framatome Electrosleeves in Callaway Sgs,As Outlined in from NRC to Ue ML20248J6191998-06-0303 June 1998 Notification of 980615 Meeting W/Util in Region IV Ofc to Discuss Update on Maint Rule Program Changes & Improvements. Agenda Attached ML20248M0741998-06-0303 June 1998 Notification of Cancellation of 980611 Meeting W/Util in Rockville,Md to Discuss Status of NRC Review of Ue Proposed Amend to Allow Use of Framatome Electrosleeves in Callaway SG as Outlined in from NRC to Ue ML20248F6311998-05-29029 May 1998 Notification of Significant Licensee Meeting W/Util on 980616 in Arlington,Tx to Discuss Licensee Performance ML20217Q6011998-04-29029 April 1998 Notification of 980513 Meeting W/Wolf Creek Nuclear Operating Corp & Union Electric Co to Discuss Proposed TS Amends to Support Mod to Increase Spent Fuel Pool Capacity at Wolf Creek & Callaway ML20217F9511998-03-30030 March 1998 Notification of 980402 Meeting W/Util in Rockville,Md to Discuss NRC Staff Questions Re Changes Made to Callaway Emergency Plans ML20236N6081998-03-11011 March 1998 Responds to Task Interface Agreement Re Callaway Performance of During Shutdown Surveillance Test Requirements W/Unit at-power ML20199C1531998-01-16016 January 1998 Notification of 980129 Meeting W/Util in Rockville,Md to Discuss NRC Staff Questions Re Licensee Interpretation of TS Required Shutdown Surveillance Testing ML20198C3801998-01-0202 January 1998 Notification of Licensee Meeting W/Util on 980121 to Discuss Radiation Protection Activities ML20203C4321997-12-0505 December 1997 Notification of 971209 Meeting W/Util to Discuss NRC Staff Questions Re Recent Licensee Submittals Associated W/Use of Framatome Electrosleeves ML20202B0711997-11-21021 November 1997 Notification of 980106 Meeting W/Util in Arlington,Texas to Discuss EP Plan Activities ML20199F5021997-11-14014 November 1997 Notification of 971120 Meeting W/Union Electric Co & Framatome Technologies in Rockville,Maryland to Discuss NRC Staff Questions Re Recent Licensee Submittals Associated W/Use of Framatome Electrosleeves ML20212E8361997-10-30030 October 1997 Notification of Licensee Meeting W/Util on 971110 to Discuss Emergency Preparedness Plan Activities ML20217E0951997-09-26026 September 1997 Notification of 971007 & 08 Meeting W/Une in Monroeville,Pa to Discuss Shutdown Margin & Other Calculations Affected by Axial Offset Anomaly Being Experienced by Plant IR 05000483/19973011997-08-20020 August 1997 Forwards NRC Operator Licensing Exam Rept 50-483/97-301 (Including Completed & Graded Tests) for Tests Administered on 970627 ML20217H4351997-08-0101 August 1997 Notification of 970813 Meeting W/Listed Participants in Rockville,Md to Discuss NRC Questions Re Recent Licensee Submittals Associated W/Use of Framatome Electrosleeves ML20149G8571997-07-16016 July 1997 Notification of Licensee Meeting W/Util on 970815 to Discuss Failure to Perform SE IAW 10CFR50.59 Requirements Identified in Insp Rept 50-483/97-05 ML20141M0061997-05-30030 May 1997 Notification of Licensee Meeting W/Util in Steedman,Mo on 970702 to Discuss Results of Latest SALP ML20137X0131997-04-17017 April 1997 Notification of 970506-07 Meeting W/Une & Framatome Technologies in Toronto,Ontario,Canada to Discuss Destructive Exam Techniques Used at Ontario Hydro Technologies Pertaining to Installation of Electrosleeves ML20137W9811997-04-17017 April 1997 Notification of 970513-14 & 15 Meeting W/Une & Framatome Technologies in Lynchburg,Va to Witness Use of Ultrasonic Testing Equipment & Review Analysis Methods Pertaining to Framatome Electrosleeving Process ML20137Y2301997-04-16016 April 1997 Informs That Operator Licensing Exams Administered on 970224 -28 at Facility.Exam Rept Encl ML20137J6451997-04-0202 April 1997 Forwards Document on Docket 05000483 for Callaway Plant, Unit 1 ML20137J6701997-04-0202 April 1997 Forwards Info Obtained Form 970402 Telcon Re GL-96-06 ML20137C9201997-03-20020 March 1997 Forwards Documentation of Meeting Conducted in Region 4 Office on 970225 to Discuss NRC Enforcement Policy as Applied to Nonescalated Enforcement ML20134A8841997-01-24024 January 1997 Notification of 970220 Meeting W/Union Electric in Rockville MD to Discuss Union Preparation for 970609-12 Operational Safeguards Response Evaluation at Callaway Plant ML20134A0141997-01-22022 January 1997 Discusses 970115 Meeting W/Ue to Discuss Proposed TS Amend That Would Allow Electrosleeving of SG Tubes at Plant.List of Attendees & Nonproprietary Version of Handout Matl Encl ML20132E2521996-12-18018 December 1996 Notification of 970114 Meeting W/Util in Rockville,Md to Discuss Union Electric Co Plans for Reload Design to Callaway Plant ML20132E5701996-12-17017 December 1996 Notification of 970115 Meeting W/Licensee in Rockville,Md to Discuss Nondestructive Exam Qualification Efforts to Date in Support of Staff Review of Amend Request That Would Allow Use of Framatome Electrosleeving Technology ML20134B5061994-04-13013 April 1994 Submits Plants Which Will Be Discussed in Categories Indicated Re Results of Screening Meetings for June 1994. Partially Deleted ML20058G5441993-11-30030 November 1993 Notification of 931208 Meeting W/Util in Rockville,Md to Discuss Proposed TS Improvement Program to Be Jointly Undertaken by Wolf Creek Nuclear Operating Corp & Union Electric Co ML20058F4391993-11-26026 November 1993 Notification of 931209 Meeting W/Util in Rockville,Md to Discuss Possible Replacement of Steam Generator Hydraulic Supports W/Other Types of Mechanical Components Supports ML20056H0061993-08-31031 August 1993 Notification of 930908 Meeting W/Union Electric Company & Westinghouse Electric Corp in Rockville,Md to Discuss Licensee Plans & Scheduled Activities Re Upcoming Callaway Sixth Refueling Outage & 7 Cycle Reload ML20056G4341992-10-20020 October 1992 Informs That AIT Being Dispatched to Plant in Accordance W/ NRC Manual Chapter 0325.Forwards Final Charter to Evaluate Events Associated w/921016-17 Plant Loss of Annunciator Events ML20245L5291989-05-0303 May 1989 Summarizes NRR Insp of Noble Gas Monitors at Plant on 890412,to Obtain Understanding of Monitor Sys Improvement ML20245H8521989-04-28028 April 1989 Notification of 890503 Meeting W/Util in Rockville,Md to Discuss Proposed Revs to Containment Vessel Structural Integrity Spec ML20245K2981989-03-0303 March 1989 Forwards FEMA Exercise Rept for 880606 partial-scale Exercise at Plant.Exercise Identified Six Deficiencies Which Have Been Adequately Corrected,Five Through Plan Revs & One Through Successful Remedial Exercise ML20195G2581988-11-0808 November 1988 Partially Deleted Memo Re Commissioner Carr 880113-15 Visit to Plant,Meeting W/State of Mo Officials & Visit to Mallinckrodt,Inc ML20154P3091988-09-27027 September 1988 Notification of 881005 Meeting W/Util in Rockville,Md to Discuss Licensee Presentation of Steam Generator Level Reactor Trip Mod for Plant ML20151H4281988-04-15015 April 1988 Informs of D Shepard Participation in Tabletop Review of Simulator Certification During Wk of 880425,per 880413 Telcon ML20148G9451988-03-24024 March 1988 Advises That ACRS Review of Proposed Power Uprating for Facility Complete,Based on Evaluation of Concern Raised in 880317 Memo.License Amend Will Be Issued Shortly 1999-08-27
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30
[ -4 UNITED STATES j j NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20056-0001
.....p8 May 20,1999 MEMORANDUM TO: Docket File FROM: Mel Gray, Project Manager, Section 2 Project Directorate IV & Decommissioning d Division of Licensing Project Management Office of Nuclear Reactor Regulation
SUBJECT:
RECORD OF TELECON WITH UNION ELECTRIC PERSONNEL
- REGARDING ELECTROSLEEVE AMENDMENT APPLICATION FOR CALLAWAY PLANT, UNIT 1 (TAC NO. MA3954)
REFERENCE:
License Amendment Application, UE Letter ULNRC-03910, dated October 27,1998 The NRC staff is reviewing an amendment application submitted by Union Electric Company (UE) that requests approval to install the electrosteeve repair in Callaway Plant, Unit 1 steam generator tubes (Reference). The electrosleeve repair method has been developed by Framatome Technologies, Incorporated. On April 29,1999, NRC staff and UE personnel discussed risk information provided by UE The information provided by UE is included in Attachments 1 and 2. Personnel that participated in the telecon are listed in Attachment 3.
In Attachment 2, UE concluded that the additional conservatisms listed would decrease the calculated core damage frequency for induced steam generator tube ruptures to the low 10E4 range. The staff indicated that while the conservatisms listed seemed reasonable, there were
, non-conservatisms that may not have been considered. An example discussed was the turbine driven auxiliary feedwater pump failure to run probability. The probability used by UE was on the order of 10Ed and considered low by the staff. In nuclear plant individual performance assessments (IPEs), this probability ranges over several orders of magnitude. The staff also
({/
indicated that they were not sure all appropriate cutsets had been included in calculating the core damage frequency for "high dry" severe accident scenarios (high primary to secondary differential pressure and dry secondary side steam generator). The staff stated that a more l in-depth staff review of the Callaway IPE would be required to provide a basis for NRC approval of the electrosleeve amendment without a flaw length limitation.
/(M UE personnel brought item #5 in Attachment 2 to the staff's attention. With the conservatisms presented, the UE calculated core damage frequency leading to steam generator tube rupture I (SGTR) would be 1.70Ed/ year. UE indicated that only those core damage scenarios that fail electrosleeves (i.e, those severe accident scenarios that result in temperatures between 1100*F and 1400*F), should be considered in calculating the increase in risk. Using the MAAP i code, UE indicated that for dominant sequences, tube temperatures remain below 1100F.
Consequently, UE concluded the conditional probability of core damage and SGTR due to electrosleeve installation would be essentially zero. The staff indicated that to quantify the increase in core damage frequency followed by SGTR due to electrosleeve installation, the time ran 2 C J ' 4 :1 9905270237 990520 f ADOCK 05000483 PDR P PDR [
t_ _
f w ,
(~,
4 temperature history of the severe accident needs to be considered, not temperature alone.
Additionally, considering differences in MAAP code and RELAP code results for other plants, this approach may not be bounding. Agreement was not reached on this issue.
- . in conclusion, UE indicated that they did not consider the staff's evaluation of risk for the
- electrosleeve amendment to provide sufficient basis for proposing additional limitations on the electrosleeve amendment request. Altematively, the staff indicated the risk information provided by UE would require significant additional staff review before UE's conclusions regarding high-dry core damage frequency and SGTR probability due to electrosleeve installation could be accepted as the basis for approval of the electrosleeve amendment
, request.-
Docket No. 50-483 l Attachments: 1. Fax from UE on April 20,1999, Draft of " Evaluation of Risk induced Steam Generator Tube Rupture," March 1999
- 2. Fax from UE on April 27,1999, " Issues Related to Qualification of Delta-LERF Due to Installation of Electrosleeves"
- 3. List of Telecon Participants DISTRIBUTION: original ' signed by M. Gray j Docket File l PUBLIC i PlV-2 Reading RBarrett SRichards
]
MGray BBateman TSullivan - 1 EPeyton SLong-GParry OGC' ACRS DGraves. Region IV 2 l OFFICE PDIV-2/PM , PDIV-2/LA SPSB i PDIV-2/SC ,,
lNAME NU EP dab RBh SDembe M hDATE d / /99 6/11/99 [/f199 T66/9 OFFICIAL RECORD COPY l DOCUMENT NAME: MEM3954.WPD . !
I
! I
p ,
3 J
,y temperature history of the severe accident needs to be considered, not temperature alone.
Additionally, considering differences in MAAP code and RELAP code results for other plants, this approach may not be bounding. Agreement ws: not reached on this issue.
In conclusion, UE indicated that they did not consider the staffs evaluation of risk for the electrosleeve amendment to provide sufficient basis for proposing additional limitations on the electrosleeve amendment request. Altematively, the staff indicated the risk information provided by UE would require significant additional staff review before UE's conclusions ,
regarding high-dry core damage frequency and SGTR probability due to electrosleeve '
installation could be accepted as the basis for approval of the electrosleeve amendment request.
Docket No. 50-483 Attachments: 1. Fax from UE on April 20,1999, Draft of " Evaluation of Risk Induced Steam l Generator Tube Rupture," March 1999
- 2. Fax from UE on April 27,1999, " Issues Related to Qualification of Delta-LERF Due to Installation of Electrosleeves"
- 3. List of Telecon Participants l
l l-l
. e
E O
i
's Fax from Union Electric Company on April 20,1999 Draft of" Evaluation of Risk induced Steam Generator Tube Rupture,"
dated March 1999 i
I i
i l
i ATTACHMENT 1