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TAC:MB6436, Revise PTLR Definition and References in ISTS 5.6.6, RCS PTLR (Approved, Closed) TAC:MB6437, Revise PTLR Definition and References in ISTS 5.6.6, RCS PTLR (Approved, Closed) |
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MONTHYEARML0304503752003-02-14014 February 2003 RAI, Technical Specification Change Request No. 00-14, Pressure Temperature Limits Reports (PTLR) and Request for Exemption from the Requirements of 10 CFR Part 50, Appendix G. Project stage: RAI ML0309900142003-03-28028 March 2003 Response to Request for Additional Information (RAI) Regarding Technical Specification (TS) Change 00-14, Pressure Temperature Limits Report (PTLR) and Request for Exemption from the Requirements of 10 CFR 50, Appendix G. Project stage: Response to RAI ML0318206662003-06-24024 June 2003 Revised Responses to NRC Questions 1, 2 & 3 for Technical Specification (TS) Change 00-14 Project stage: Other ML0320403052003-07-23023 July 2003 Environmental Assessment, Related to One of Two Exemptions Dated September 6, 2002, as Supplemented by Letter Dated December 19, 2002 Project stage: Other ML0320605582003-07-30030 July 2003 Seqyoyah, Unit 2, Exemption, Requirements of Title 10 of the Code of Federal Regulations, Part 50, Appendix G Project stage: Other ML0325214782003-09-0303 September 2003 Updated Pressure Temperature Limits Report and Topical Reports for SQN Technical Specification Change No. 00-14 Project stage: Other ML0330404032003-10-22022 October 2003 Technical Specification (TS) Change No. 00-14; Supplemental Changes Project stage: Supplement ML0336305592003-12-18018 December 2003 Additional Information Regarding Technical Specification (TS) Change 00-14, Pressure Temperature Limits Report (PTLR) and Request for Exemption from the Requirements of 10 CFR 50, Appendix G Project stage: Request ML0426004652004-09-15015 September 2004 Issuance of Amendment Nos. 294 and 284, Regarding Technical Specification Change No. 00-14, Pressure Temperature Limits Report Project stage: Approval ML0426102902004-09-15015 September 2004 Issuance of Amendment Regarding, Index - Definitions 1.0 Project stage: Approval 2003-06-24
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Category:Letter
MONTHYEARIR 05000327/20240022024-07-31031 July 2024 Integrated Inspection Report 05000327/2024002 and 05000328/2024002 ML24211A0572024-07-29029 July 2024 Submittal of Emergency Plan Implementing Procedure Revision ML24211A0542024-07-29029 July 2024 Operator License Examination Report ML24211A0412024-07-26026 July 2024 Unit 1 Cycle 26 Refueling Outage - 90-Day Inservice Inspection Summary Report ML24199A0012024-07-22022 July 2024 Clarification and Correction to Exemption from Requirement of 10 CFR 37.11(c)(2) ML24172A1342024-07-15015 July 2024 Exemptions from 10 CFR 37.11(C)(2) (EPID L-2023-LLE-0024) - Letter ML24191A4652024-07-0909 July 2024 Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations ML24177A0282024-06-25025 June 2024 Emergency Plan Implementing Procedure Revisions ML24145A0852024-05-30030 May 2024 1B-B Diesel Generator Failure - Final Significance Determination Letter ML24145A1052024-05-29029 May 2024 301 Exam Approval Letter ML24134A1762024-05-13013 May 2024 Submittal of 2023 Annual Radiological Environmental Operating Report CNL-24-040, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2024-05-0808 May 2024 Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revisions ML24128A0352024-05-0707 May 2024 Providing Supplemental Information to Apparent Violation ML24120A0582024-04-26026 April 2024 10 CFR 50.46 Annual Report for Sequoyah Nuclear Plant Units 1 and 2 ML24116A2612024-04-25025 April 2024 Interim Report of a Deviation or Failure to Comply - Transducer Model 8005N ML24114A0482024-04-23023 April 2024 Annual Radioactive Effluent Release Report for 2023 Monitoring Period CNL-24-037, Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 422024-04-22022 April 2024 Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 42 ML24144A2322024-04-20020 April 2024 Tennessee Multi-Sector Permit (Tmsp), 2024 Annual Discharge Monitoring Report for Outfalls SW-3, SW-3, and SW-9 ML24144A2362024-04-20020 April 2024 Discharge Monitoring Report (Dmr), March 2024 CNL-24-024, Hydrologic Engineering Center River Analysis System Project Milestone Status Update2024-04-17017 April 2024 Hydrologic Engineering Center River Analysis System Project Milestone Status Update CNL-24-033, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2024-04-17017 April 2024 Central Emergency Control Center Emergency Plan Implementing Procedure Revisions ML24109A0272024-04-16016 April 2024 Cycle 27 Core Operating Limits Report Revision 0 ML24032A0202024-01-31031 January 2024 NPDES Biocide/Corrosion Treatment Plan Annual Report, Cy 2023 ML23319A2452024-01-29029 January 2024 Issuance of Amendment Nos. 366 and 360; 164 and 71 Regarding the Adoption of TSTF-567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues CNL-24-017, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions2024-01-17017 January 2024 Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions ML24018A0142024-01-17017 January 2024 Engine Systems, Inc., Report No. 10CFR21-0137, Rev. 1, 56913-EN 56913 ML24011A3202024-01-11011 January 2024 Submittal of Discharge Monitoring Report (Dmr), December 2023 IR 05000327/20234422024-01-11011 January 2024 95001 Supplemental Inspection Report 05000327/2023442 and 05000328/2023442 and Follow-Up Assessment Letter ML24011A3162024-01-11011 January 2024 Submittal of Discharge Monitoring Report (Dmr), August 2023 ML24011A3192024-01-11011 January 2024 Submittal of Discharge Monitoring Report (Dmr), November 2023 ML24011A3172024-01-11011 January 2024 Submittal of Discharge Monitoring Report (Dmr), September 2023 ML24011A3182024-01-11011 January 2024 Submittal of Discharge Monitoring Report (Dmr), October 2023 ML24010A2132024-01-10010 January 2024 CFR 21.21 Final Report Regarding Siemens Medium Voltage Circuit Breakers ML24018A0952024-01-0404 January 2024 Engine Systems, Inc., 10CFR21 Reporting of Defects and Non-Compliance Report No. 10CFR21-0137, Rev. 0 ML24004A0332024-01-0303 January 2024 Interim Report of a Deviation or Failure to Comply Crompton Instruments Type 077 Ammeter ML24004A0402024-01-0303 January 2024 Response to NRCs November 8, 2023, Request for Additional Information - Related to Independent Spent Fuel Storage Installation CNL-23-068, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-21021 December 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation CNL-23-036, Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08)2023-12-18018 December 2023 Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08) ML23346A1222023-12-12012 December 2023 Annual Non-Radiological Environmental Operating Report - 2023 IR 05000327/20234202023-11-28028 November 2023 Security Baseline Inspection Report 05000327/2023420 and 05000328/2023420 CNL-23-067, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-11-27027 November 2023 Central Emergency Control Center Emergency Plan Implementing Procedure Revisions ML23324A4362023-11-0909 November 2023 Exam Corporate Notification Letter Aka 210-day Letter ML23307A0822023-11-0808 November 2023 Request for Additional Information August 4, 2022, Exemption Request for Deviating from the Conditions of Certificate of Compliance No. 1032, Amendment No. 3, Related to Sequoyah Nuclear Plant Independent Spent Fuel Storage Installation IR 05000327/20230032023-11-0303 November 2023 Integrated Inspection Report 05000327/2023003 and 05000328/2023003 ML23306A1592023-11-0202 November 2023 Enforcement Action EA-22-129 Inspection Readiness Notification ML23292A0792023-10-19019 October 2023 Tennessee Valley Authority - Emergency Plan Implementing Procedure Revision, Includes EPIP-5, Revision 58, General Emergency IR 05000327/20230112023-10-16016 October 2023 Triennial Fire Protection Inspection Report 05000327/2023011 and 05000328/2023011 ML23285A0882023-10-12012 October 2023 Submittal of Sequoyah Nuclear Plant, Units 1 and 2, Submittal of Updated Final Safety Analysis Report Amendment 31 ML23284A4252023-10-11011 October 2023 10 CFR 50.59 and 10 CFR 72.48 Changes, Tests, and Experiments Summary Report; Commitment Summary Report; and Update to the Fire Protection Report ML23283A2792023-10-10010 October 2023 Revisions to the Sequoyah Nuclear Plant Units 1 and 2 Technical Requirements Manual 2024-07-09
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-p Tennessee Valley Authority, Post Office Box 2000, Soddy-Daisy. Tennessee 37384-2000 December 18, 2003 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:
In the Matter of Docket Nos. 50-327 Tennessee Valley Authority 50-328 SEQUOYAH NUCLEAR PLANT SQN) - ADDITIONAL INFORMATION REGARDING TECHNICAL SPECIFICATION (TS) CHANGE 00-14, "PRESSURE TEMPERATURE LIMITS REPORT (PTLR) AND REQUEST FOR EXEMPTION FROM THE REQUIREMENTS OF 10 CFR 50, APPENDIX G" (TAC NOS. MB6436 AND MB6437)-
Reference:
TVA letter to TVA dated March 28, 2003,
."Sequoyah Nuclear Plant (SQN) -- Response to Request for Additional Information (RAI)
Regarding Technical Specification (TS) Change 00-14, 'Pressure Temperature Limits Report (PTLR) and Request for Exemption From the Requirements of 10 CFR 50, Appendix G,' (TAC Nos. MB6436 and MB6437)"
Enclosed is additional-information to support NRC review of SQN TS Change 00-14. The additional information supplements the information provided in the reference letter and responds to two NRC follow-up questions from a September 16, 2003 telephone conferece call with your staff.
Prhted ar recyded per
U.S. Nuclear Regulatory Commission Page 2 December 18, 2003 There are no commitments contained in this submittal.
Please direct questions concerning this issue to me at (423) 843-7 70 or J. D. Smith at (423) 843-6672.
as Lic ng and Industry Affairs Manager I declare under penalty of perjury that t regoing.s tru and correct. Executed on this V day of Enclosure cc (Enclosure):
Framatome ANP, Inc.
P. 0. Box 10935 Lynchburg, Virginia 24506-0935 ATTN: Mr. Frank Masseth Mr. Michael J. Marshall, Jr., Senior Project Manager U.S. Nuclear Regulatory Commission Mail Stop O-8G9A One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Lawrence E. Nanney, Director Division of Radiological Health Third Floor L&C Annex 401 Church Street Nashville, Tennessee 37243-1532
- s ENCLOSURE SEQUOYAH NUCLEAR PLANT (SQN)
ADDITIONAL INFORMATION FOR TECHNICAL SPECIFICATION (TS) CHANGE NO. 00-14, DOCKET NOS. 50-327 AND 50-328 The following additional information is provided in response to NRC staff questions from review of Westinghouse Topical Report WCAP-15984-P, Revision 1, "Reactor Vessel Closure Head/Vessel Flange Requirements Evaluation for Sequoyah Units 1 and 2."
NRC Question 1 Provide a more precise estimate of when (in minutes into the heatup transient) the stress intensity factor (SIF) for the 0.1T outside diameter flaw at the location to which Figure 4-2 applies will exceed 33.2 ksi-inA0.5.
TVA Response Figure 4-2 of WCAP-15984-P, Revision 1, provides a summary of all the time steps in the heatup/cooldown transient for the governing location in the head. For a postulated flaw of depth equal to 0.1T, the stress intensity factor exceeds the value of 33.2 ksi-in^0.5 at a time of 344 minutes into the transient, which is at the end of the heatup. Other time steps where the stress intensity factor exceeds 33.2 ksi-in^0.5 include 355, 375, and 405 minutes. For these times, the reactor vessel is at least 500 degrees Fahrenheit, so the toughness is on the upper shelf, at least 200 ksi-in^0.5. This value is far above the minimum lower-shelf toughness, thus, fracture could not occur in this region.
This provides a simple and conclusive demonstration that there is no need for a flange requirement.
NRC Question 2 Identify whether or not a 0.1T outside diameter flaw at any location other than that to which Figure 4-2 applies will exceed a SIF of 33.2 ksi-inA0.5 at a time step earlier in the heatup transient. If so, provide the time (in minutes into the heatup transient) when the other location exceeds 33.2 ksi-inA0.5.
E-1
4 TVA Response As stated in the report, the location covered by Figure 4-2 of WCAP-15984, Revision 1, is the governing location for the heatup/cooldown transient. Therefore, there are no other locations in the head where the stresses could be higher at a given temperature.
E-2