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| | number = ML17276A078 | | | number = ML17276A078 |
| | issue date = 09/27/2017 | | | issue date = 09/27/2017 |
| | title = 2017/09/27 NRR E-mail Capture - Request for Additional Information Regarding TSTF-547 Supported Amendment | | | title = NRR E-mail Capture - Request for Additional Information Regarding TSTF-547 Supported Amendment |
| | author name = Wiebe J S | | | author name = Wiebe J |
| | author affiliation = NRC/NRR/DORL/LPLIII | | | author affiliation = NRC/NRR/DORL/LPLIII |
| | addressee name = Bauer J | | | addressee name = Bauer J |
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| =Text= | | =Text= |
| {{#Wiki_filter:1NRR-PMDAPEm ResourceFrom:Wiebe, JoelSent:Wednesday, September 27, 2017 12:14 PMTo:Joseph Bauer | | {{#Wiki_filter:NRR-PMDAPEm Resource From: Wiebe, Joel Sent: Wednesday, September 27, 2017 12:14 PM To: Joseph Bauer |
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| ==Subject:== | | ==Subject:== |
| Request for Additional Information Regarding TSTF-547 Supported AmendmentJoe, In reviewing the Exelon Generation Company, LLC (the licensee) letter dated June 30, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17187A191), related to a license amendment request to change the Braidwood Station, Units 1 and 2 and Byron Station, Units 1 and 2, technical specifications to incorporate changes supported by TSTF-547,"Clarification of Rod Position Requirements," the NRC staff has determined that additional information is required to complete the review. | | Request for Additional Information Regarding TSTF-547 Supported Amendment |
| A response to the below request for additional information is requested within 30 days. If a clarification call is needed, let me know within 7 days. The proposed change to the TSs would add a new Condition A to Limiting Condition for Operation (LCO) 3.1.5 and LCO 3.1.6 (shutdown and control bank insertion limits) that is applicable when one bank is inserted 16 steps below the insertion limits specified in the Core Operating Limits Report. You state in your submittal dated June 30, 2017, that, while the TSTF-547 verbiage is not adopted in its entirety, the requested changes are consistent with the changes approved by the NRC staff in its safety evaluation (SE) dated March 4, 2016, "Final Safety Evaluation of Technical Specification Task Force Traveler TSTF-547, Clarification of Rod Position Requirements," Revision 1 (ADAMS Accession No. ML15328A350). The NRC staff states in its SE that the bracketed number [16] in Condition A should be replaced with the plant-specific minimum number of steps that the rods must be moved to ensure correct performance of Surveillance Requirement (SR) 3.1.4.2. The Braidwood and Byron SR 3.1.4.2 requires movement of the control and shutdown rods a minimum of 10 steps in either direction. Provide justification for the use of 16 steps in Condition A in LCOs 3.1.5 and 3.1.6 and explain how this is consistent with that approved in the NRC staff's SE for TSTF-547. | | : Joe, In reviewing the Exelon Generation Company, LLC (the licensee) letter dated June 30, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17187A191), related to a license amendment request to change the Braidwood Station, Units 1 and 2 and Byron Station, Units 1 and 2, technical specifications to incorporate changes supported by TSTF-547,Clarification of Rod Position Requirements, the NRC staff has determined that additional information is required to complete the review. |
| | A response to the below request for additional information is requested within 30 days. If a clarification call is needed, let me know within 7 days. |
| | The proposed change to the TSs would add a new Condition A to Limiting Condition for Operation (LCO) 3.1.5 and LCO 3.1.6 (shutdown and control bank insertion limits) that is applicable when one bank is inserted 16 steps below the insertion limits specified in the Core Operating Limits Report. You state in your submittal dated June 30, 2017, that, while the TSTF-547 verbiage is not adopted in its entirety, the requested changes are consistent with the changes approved by the NRC staff in its safety evaluation (SE) dated March 4, 2016, Final Safety Evaluation of Technical Specification Task Force Traveler TSTF-547, Clarification of Rod Position Requirements, Revision 1 (ADAMS Accession No. ML15328A350). The NRC staff states in its SE that the bracketed number [16] in Condition A should be replaced with the plant-specific minimum number of steps that the rods must be moved to ensure correct performance of Surveillance Requirement (SR) 3.1.4.2. The Braidwood and Byron SR 3.1.4.2 requires movement of the control and shutdown rods a minimum of 10 steps in either direction. Provide justification for the use of 16 steps in Condition A in LCOs 3.1.5 and 3.1.6 and explain how this is consistent with that approved in the NRC staffs SE for TSTF-547. |
| | Joel 1 |
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| Joel Hearing Identifier: NRR_PMDA Email Number: 3748 Mail Envelope Properties (Joel.Wiebe@nrc.gov20170927121300)
| | Hearing Identifier: NRR_PMDA Email Number: 3748 Mail Envelope Properties (Joel.Wiebe@nrc.gov20170927121300) |
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| ==Subject:== | | ==Subject:== |
| Request for Additional Information Regarding TSTF-547 Supported Amendment Sent Date: 9/27/2017 12:13:43 PM Received Date: 9/27/2017 12:13:00 PM From: Wiebe, Joel Created By: Joel.Wiebe@nrc.gov Recipients: "Joseph Bauer" <Joseph.Bauer@exeloncorp.com> | | Request for Additional Information Regarding TSTF-547 Supported Amendment Sent Date: 9/27/2017 12:13:43 PM Received Date: 9/27/2017 12:13:00 PM From: Wiebe, Joel Created By: Joel.Wiebe@nrc.gov Recipients: |
| Tracking Status: None Post Office: Files Size Date & Time MESSAGE 1942 9/27/2017 12:13:00 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: | | "Joseph Bauer" <Joseph.Bauer@exeloncorp.com> |
| }} | | Tracking Status: None Post Office: |
| | Files Size Date & Time MESSAGE 1942 9/27/2017 12:13:00 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: |
| | Recipients Received:}} |
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Category:E-Mail
MONTHYEARML24282A7042024-10-0808 October 2024 NRR E-mail Capture - Acceptance Reviews of Relief Requests Associated with the Fifth Inservice Inspection Interval at Byron and Braidwood Stations ML24250A1062024-09-0606 September 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24197A0162024-07-12012 July 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591 ML24180A0042024-06-28028 June 2024 NRR E-mail Capture - Acceptance Review for Braidwood and Byron - Request for Exemption from 10 CFR 50.46 and Appendix K (L-2024-LLE-0019) ML24180A0032024-06-28028 June 2024 NRR E-mail Capture - NRC Acceptance Review of Byron/Braidwood Amendment for Transition to Framatome Gaia Fuel (L-2024-LLA-0072) ML24176A0182024-06-20020 June 2024 NRR E-mail Capture - NRC Acceptance Review of Byron/Braidwood Amendment to Remove Extraneous Detail Related to Beacon ML24170A3912024-06-18018 June 2024 NRR E-mail Capture - Revision of Estimated Hours to Complete Review of Byron/Braidwood Amendment to Revise TS 3.7.15, 3.7.16, and 4.3.1 (L-2023-LLA-0136) ML24141A2452024-05-20020 May 2024 NRR E-mail Capture - NRC Acceptance Review of Byron/Braidwood Amendment to Delete Technical Specification 5.6.5.b.5 (L-2024-LLA-0055) ML24131A0612024-05-10010 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24122B5072024-05-0101 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-591, Revision 0 ML24053A3382024-02-22022 February 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative for Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (L-2023-LLR-0062) ML24030A0022024-01-30030 January 2024 NRR E-mail Capture - NRC Acceptance Review for Braidwood Station, Units 1 and 2, Proposed Alternative to the Distribution Requirements of ASME Code Table IWC-2411-1 for the Steam Generators ML24039A0412024-01-30030 January 2024 NRR E-mail Capture - Request for Additional Information Regarding Braidwood Request for Alternative (I4R-18) ML23331A8922023-11-22022 November 2023 Supplement - Braidwood Security Rule Exemption Request ISFSI Docket No. Reference ML23321A2012023-11-17017 November 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative for Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (L-2023-LLR-0062) ML23311A1692023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Exam Categories B-B, B-D, and C-A SG Pressure Retaining Welds and Full Penetration Welded Nozzles (L-2023-LLR-0055 and L-2023-LLR-00 ML23311A1682023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections (L-2023-LLR-0053 and L-2023-LLR-005 ML23304A0222023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Braidwood 1 & 2 - Exemption from Security Rule (L-2023-LLE-0030) ML23187A0092023-07-0606 July 2023 NRR E-mail Capture - NRC Acceptance Review of Byron and Braidwood Request to Adopt TSTF-370 ML23103A4692023-04-12012 April 2023 NRR E-mail Capture - NRC Acceptance Review of Braidwood Request for Amendment to Revise TS 3.7.9 ML23069A0332023-03-0606 March 2023 Email to K. Lueshen Byron and Braidwood Commitment 10 - Request for Additional Information Set 1 ML22354A2622022-12-20020 December 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Request to Use Certain Provisions of the 2019 Edition of the ASME BPV Code, Section XI NRC-2100-2022, EN 55999 Valcor Coil Shell Assemblies Final Notification (004)2022-09-12012 September 2022 EN 55999 Valcor Coil Shell Assemblies Final Notification (004) ML22255A0132022-09-0909 September 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood, Byron, Calvert Cliffs, Ginna - License Amendment Request to Adopt TSTF-577 ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits NRC 2110-2022, EN 55999 - Valcor Engineering Corporation (009)2022-07-18018 July 2022 EN 55999 - Valcor Engineering Corporation (009) ML22189A0602022-07-0707 July 2022 NRR E-mail Capture - Draft RAI for Byron/Braidwood TSTF-501 ML22136A2722022-05-16016 May 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood and Byron Adoption of TSTF-501 ML22271A0772022-05-0606 May 2022 NRR E-mail Capture - Final RAIs 9.1.2021 Constellation Relief Request ML22129A0132022-05-0606 May 2022 NRR E-mail Capture - Draft RAIs for Requests for Alternatives I4R-17, I4R-23, ISI-05-018, I6R-10 ML22116A0242022-04-25025 April 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood, Byron, and Ginna Request to Adopt TSTF-246 ML22105A0722022-04-15015 April 2022 NRR E-mail Capture - Braidwood/Byron Verbal Authorization for Proposed Alternative I4R-15/I4R-21 ML22091A0852022-04-0101 April 2022 NRR E-mail Capture - Braidwood and Byron - Final RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036) ML22088A1562022-03-0202 March 2022 NRR E-mail Capture - Byron, Braidwood, Calvert Cliffs, and Ginna - Non-acceptance of Application to Revise Technical Specifications 5.6.5.b, the Core Operating Limits Report (COLR) ML22091A0842022-02-24024 February 2022 NRR E-mail Capture - Braidwood and Byron - Withdrawal of Draft RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036) ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML23089A0172022-01-0505 January 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood - Proposed Alternative for Examinations of Categories B-B, B-D, and C-A SG Welds and Nozzles ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21272A1492021-09-29029 September 2021 NRR E-mail Capture - NRC Acceptance Review of Braidwood and Byron - Proposed Alternative for Examinations of Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21252A0172021-09-0303 September 2021 NRR E-mail Capture - NRC Acceptance Review - Braidwood - License Amendment to Revise Technical Specification 3.7.9, Ultimate Heat Sink ML21252A0042021-08-26026 August 2021 NRR E-mail Capture - NRC Acceptance Review - Braidwood/Byron/Clinton - Adoption of TSTF-273, Safety Function Determination Program Clarifications ML21215A3502021-08-0303 August 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-554 ML21189A1602021-07-0808 July 2021 NRR E-mail Capture - Request for Additional Information - Braidwood, Byron, and Ginna - Amendment to Address the Issues in Westinghouse NSALs ML21154A0162021-06-0202 June 2021 NRR E-mail Capture - NRC Acceptance Review of Braidwood - Proposed Alternative for Exam of Pzr Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Shell Welds ML21154A0132021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0142021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0112021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21123A2442021-05-0303 May 2021 NRR E-mail Capture - NRC Acceptance Review of Braidwood/Byron/Ginna - Application to Address the Issues Identified in Westinghouse Documents NSAL-09-5 and NSAL-15-1 (L-2021-LLA-0066) 2024-09-06
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24263A1272024-09-23023 September 2024 – Request for Additional Information (EPID 2023-LLA-0136) - Non-Proprietary ML24197A0162024-07-12012 July 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591 ML24142A3352024-05-21021 May 2024 Quad Cities—Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes ML24053A3382024-02-22022 February 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative for Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (L-2023-LLR-0062) ML24039A0412024-01-30030 January 2024 NRR E-mail Capture - Request for Additional Information Regarding Braidwood Request for Alternative (I4R-18) ML23339A0452023-12-0505 December 2023 Request for Information for an NRC Post-Approval Site Inspection for License Renewal Inspection Report 05000546/2024010 ML23191A8442023-07-10010 July 2023 05000456; 05000457 Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information ML23110A3202023-04-21021 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection ML23094A1352023-04-0404 April 2023 Request for Information for Nrc Commercial Grade Dedication Inspection Inspection Report 05000456/2023010 05000457/2023010 ML23069A0342023-03-0606 March 2023 Unit 1 Lr Commitment 10 RAI Set 1 - (Non-Proprietary) ML23069A0332023-03-0606 March 2023 Email to K. Lueshen Byron and Braidwood Commitment 10 - Request for Additional Information Set 1 ML23018A1632023-01-18018 January 2023 Notification of NRC Baseline Inspection and Request for Information ML22241A0522022-08-29029 August 2022 Notification of NRC Baseline Inspection and Request for Information Inspection Report 05000456/2022004 05000457/2022004 ML22129A0132022-05-0606 May 2022 NRR E-mail Capture - Draft RAIs for Requests for Alternatives I4R-17, I4R-23, ISI-05-018, I6R-10 ML22271A0772022-05-0606 May 2022 NRR E-mail Capture - Final RAIs 9.1.2021 Constellation Relief Request ML22091A0852022-04-0101 April 2022 NRR E-mail Capture - Braidwood and Byron - Final RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036) ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML22034A9862022-02-0404 February 2022 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000456/2022402 05000457/2022402 ML21350A4372021-12-16016 December 2021 Request for Information for an NRC Triennial Baseline Design Bases Assurance Inspection (Team) Inspection Report 05000456/2022010 and 05000457/2022010 ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21228A2352021-08-17017 August 2021 Notification of NRC Baseline Inspection and Request for Information Inspection Report 05000457/2021004 ML21193A0942021-07-12012 July 2021 Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information ML21189A1602021-07-0808 July 2021 NRR E-mail Capture - Request for Additional Information - Braidwood, Byron, and Ginna - Amendment to Address the Issues in Westinghouse NSALs ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21117A0342021-05-0505 May 2021 Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893 ML21062A0652021-03-0101 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21057A1022021-02-25025 February 2021 Notification of NRC Fire Protection Team Inspection Request for Information; Inspection Report 05000456/2021010; 05000457/2021010 ML21049A2572021-02-18018 February 2021 Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237) ML21029A3302021-01-29029 January 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Fleet Alternative Request to Use ASME Code Case N-885 ML21020A1292021-01-20020 January 2021 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000456/2021002; 05000457/2021002 ML21004A1452020-12-30030 December 2020 NRR E-mail Capture - Request for Additional Information Regarding Relief Requests Braidwood I4R-11 and Byron I4R-18 ML20289A1142020-10-0909 October 2020 NRR E-mail Capture - Preliminary RAIs for LAR Regarding Non-conservative TS EDG Frequency Tolerance ML20153A7042020-06-0101 June 2020 NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26 ML20104C1452020-04-10010 April 2020 NRR E-mail Capture - Preliminary RAIs for Exelon'S April 6, 2020, Application to Defer Braidwood, Unit 2, Steam Generator Inspections ML20023A0812020-01-23023 January 2020 NRR E-mail Capture - RAIs for L-2019-LLA-0201 - Braidwood, Units 1 and 2, LAR to Revise TS 3.7.9, Ultimate Heat Sink ML19350B2952019-12-16016 December 2019 NRR E-mail Capture - Draft Request for Additional Information Regarding Braidwood Station, Units 1 and 2, Impractical Inservice Inspection Requirements (L-2019-LLA-0081) ML19275H1362019-10-0202 October 2019 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879 ML19252C1542019-08-22022 August 2019 NRR E-mail Capture - Issuance of the Remainder of Preliminary RAIs for Braidwood/Byron TSTF-505 Application ML19232A2242019-08-0707 August 2019 NRR E-mail Capture - Partial Issuance of Final RAIs for Braidwood/Byron TSTF-505 Application ML19207A0672019-07-26026 July 2019 NRR E-mail Capture - Partial Issuance of Preliminary RAIs for Braidwood/Byron TSTF-505 Application ML19179A0612019-07-19019 July 2019 Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879 ML19128A2362019-05-0202 May 2019 NON- PROPRIETARY- Request for Additional Information- Amendment Request Regarding Utilization of Tvel TVS-K Lead Test Assemblies Braidwood Station, Units 1 and 2 ML19066A0432019-03-0707 March 2019 NRR E-mail Capture - Preliminary RAIs for Quality Assurance Review of Braidwood Tvel LTA Application ML18324A8072018-12-12012 December 2018 Supplemental Information Needed for Acceptance of Requested Licensing Action One-Time Extension of Technical Specification 3.8.1, AC Sources-Operating, A2 Completion Time ML18192C1712018-07-11011 July 2018 NRR E-mail Capture - Preliminary Request for Additional Information Regarding Braidwood Station, Units 1 and 2, Relief Request IR4-03 ML18190A4072018-07-0505 July 2018 NRR E-mail Capture - Preliminary Request for Additional Information Regarding Braidwood Station, Units 1 and 2, Relief Request IR4-06 ML18150A6902018-05-30030 May 2018 NRR E-mail Capture - Preliminary RAIs Regarding Braidwood TORMIS Amendment Request ML18149A2842018-05-24024 May 2018 NRR E-mail Capture - B/B 50.69 RAI - Potential Typo ML18135A2202018-05-15015 May 2018 NRR E-mail Capture - Preliminary RAIs for Braidwood Relief Request IR4-05 ML18129A1082018-05-0909 May 2018 NRR E-mail Capture - Preliminary RAIs for Braidwood and Byron Stations 50.69 Amendment 2024-09-23
[Table view] |
Text
NRR-PMDAPEm Resource From: Wiebe, Joel Sent: Wednesday, September 27, 2017 12:14 PM To: Joseph Bauer
Subject:
Request for Additional Information Regarding TSTF-547 Supported Amendment
- Joe, In reviewing the Exelon Generation Company, LLC (the licensee) letter dated June 30, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17187A191), related to a license amendment request to change the Braidwood Station, Units 1 and 2 and Byron Station, Units 1 and 2, technical specifications to incorporate changes supported by TSTF-547,Clarification of Rod Position Requirements, the NRC staff has determined that additional information is required to complete the review.
A response to the below request for additional information is requested within 30 days. If a clarification call is needed, let me know within 7 days.
The proposed change to the TSs would add a new Condition A to Limiting Condition for Operation (LCO) 3.1.5 and LCO 3.1.6 (shutdown and control bank insertion limits) that is applicable when one bank is inserted 16 steps below the insertion limits specified in the Core Operating Limits Report. You state in your submittal dated June 30, 2017, that, while the TSTF-547 verbiage is not adopted in its entirety, the requested changes are consistent with the changes approved by the NRC staff in its safety evaluation (SE) dated March 4, 2016, Final Safety Evaluation of Technical Specification Task Force Traveler TSTF-547, Clarification of Rod Position Requirements, Revision 1 (ADAMS Accession No. ML15328A350). The NRC staff states in its SE that the bracketed number [16] in Condition A should be replaced with the plant-specific minimum number of steps that the rods must be moved to ensure correct performance of Surveillance Requirement (SR) 3.1.4.2. The Braidwood and Byron SR 3.1.4.2 requires movement of the control and shutdown rods a minimum of 10 steps in either direction. Provide justification for the use of 16 steps in Condition A in LCOs 3.1.5 and 3.1.6 and explain how this is consistent with that approved in the NRC staffs SE for TSTF-547.
Joel 1
Hearing Identifier: NRR_PMDA Email Number: 3748 Mail Envelope Properties (Joel.Wiebe@nrc.gov20170927121300)
Subject:
Request for Additional Information Regarding TSTF-547 Supported Amendment Sent Date: 9/27/2017 12:13:43 PM Received Date: 9/27/2017 12:13:00 PM From: Wiebe, Joel Created By: Joel.Wiebe@nrc.gov Recipients:
"Joseph Bauer" <Joseph.Bauer@exeloncorp.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 1942 9/27/2017 12:13:00 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received: