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| =Text= | | =Text= |
| {{#Wiki_filter:From: Surinder Arora Sent: Monday, March 4, 2024 3:24 PM To: Mathews, Mitchel A:(Constellation Nuclear) | | {{#Wiki_filter:From: Surinder Arora Sent: Monday, March 4, 2024 3:24 PM To: Mathews, Mitchel A:(Constellation Nuclear) |
| Cc: Jeff Whited | | Cc: Jeff Whited |
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| ==Subject:== | | ==Subject:== |
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| === | | === |
| Background=== | | Background=== |
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| By {{letter dated|date=November 8, 2023|text=letter dated November 8, 2023}} (ML23312A092), Constellation Energy Generation, LLC (Constellation, the licensee), submitted relief request I5R-22 to the U.S. Nuclear Regulatory Commission (NRC) regarding limited examination coverage of certain welds at the Dresden Nuclear Power Station, Units 2 and 3 (DNPS) for the fifth inservice inspection (ISI) interval. | | By {{letter dated|date=November 8, 2023|text=letter dated November 8, 2023}} (ML23312A092), Constellation Energy Generation, LLC (Constellation, the licensee), submitted relief request I5R-22 to the U.S. Nuclear Regulatory Commission (NRC) regarding limited examination coverage of certain welds at the Dresden Nuclear Power Station, Units 2 and 3 (DNPS) for the fifth inservice inspection (ISI) interval. |
| Specifically, pursuant to Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(g)(5)(iii), | | Specifically, pursuant to Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(g)(5)(iii), |
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| ===RAI 1=== | | ===RAI 1=== |
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| ===RAI 2=== | | ===RAI 2=== |
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| Clarify whether the indications detected in component IDs 3/1/RPV SHELL/3-SC3C-VERT and 3/1/RPV SHELL/3-SC4B-VERT at DNPS Unit 3 are fabrication flaws and whether they were the same indications detected in the previous (fourth) ISI interval. | | Clarify whether the indications detected in component IDs 3/1/RPV SHELL/3-SC3C-VERT and 3/1/RPV SHELL/3-SC4B-VERT at DNPS Unit 3 are fabrication flaws and whether they were the same indications detected in the previous (fourth) ISI interval. |
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| Hearing Identifier: NRR_DRMA Email Number: 2420 | | Hearing Identifier: NRR_DRMA Email Number: 2420 |
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| Mail Envelope Properties (BY3PR09MB8225789A110FDF977428992694232) | | Mail Envelope Properties (BY3PR09MB8225789A110FDF977428992694232) |
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| ==Subject:== | | ==Subject:== |
| Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 (EPID L-2023-LLR-0063) | | Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 (EPID L-2023-LLR-0063) |
| Sent Date: 3/4/2024 3:24:18 PM Received Date: 3/4/2024 3:24:00 PM From: Surinder Arora | | Sent Date: 3/4/2024 3:24:18 PM Received Date: 3/4/2024 3:24:00 PM From: Surinder Arora |
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| Created By: Surinder.Arora@nrc.gov | | Created By: Surinder.Arora@nrc.gov |
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| Recipients: | | Recipients: |
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| Tracking Status: None | | Tracking Status: None |
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| Post Office: BY3PR09MB8225.namprd09.prod.outlook.com | | Post Office: BY3PR09MB8225.namprd09.prod.outlook.com |
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| Files Size Date & Time MESSAGE 4319 3/4/2024 3:24:00 PM | | Files Size Date & Time MESSAGE 4319 3/4/2024 3:24:00 PM |
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| Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:}} | | Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:}} |
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Category:E-Mail
MONTHYEARML24271A0282024-09-26026 September 2024 E-Mail - Dresden Nuclear Power Station, Unit 1 - Site Visit Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations 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) ML24249A1362024-09-0404 September 2024 EN 57304 - Westinghouse Electric Company, LLC, Final Report - No Embedded Files. Notification of the Potential Existence of Defects Pursuant to 10 CFR Part 21 ML24233A2472024-08-20020 August 2024 Acceptance of Requested Licensing Action Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations ML24176A0232024-06-21021 June 2024 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Acceptance Review of the Amendment Request to Adopt 10 CFR 50.69 ML24159A0122024-06-0606 June 2024 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Acceptance of Licensing Amendment to Adopt TSTF-505 and TSTF-591 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) ML24066A0802024-04-0101 April 2024 Email to Christian Williams Decision on the Exemption Request for Dresden Nuclear Power Station Unit 2 and Unit 3 Independent Spent Fuel Storage Installation in Morris, Illinois ML24065A4892024-03-28028 March 2024 Email to Christian Williams Availability of Environmental Assessment for the Exemption Request for Dresden Nuclear Power Station Unit 2 and Unit 3 Independent Spent Fuel Storage Installation in Morris, Illinois ML24078A3772024-03-15015 March 2024 Email to the State of Illinois Requesting Review of the Dresden Exemption Request Environmental Assessment ML24066A0872024-03-0404 March 2024 NRR E-mail Capture - Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 ML24067A1242024-03-0101 March 2024 Email to Christian Williams: Request for Additional Information Regarding Dresden Relief Request Dated February 23, 2024 ML24065A2922024-02-28028 February 2024 2/28/24 Email from Constellation: Clarifying Information Regarding Dresden Relief Request Dated February 23, 2024 ML23339A0882023-12-0404 December 2023 NRR E-mail Capture - NRC Acceptance Review Re Dresden, Units 2 and 3 Request for Relief I5R-22 ML23328A0092023-11-22022 November 2023 Supplement - Dresden Security Rule Exemption Request ISFSI Docket No. Reference (EPID L-2023-LLE-0031) (Email) ML23304A0172023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Dresden 1, 2 & 3 - Exemption from Security Rule (L-2023-LLE-0031) ML23268A0022023-09-22022 September 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-264-A, Revision 0 ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23263A9932023-09-20020 September 2023 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Acceptance of Licensing Action Submittal Re Amendment to Adopt TSTF-564 ML23163A2292023-06-12012 June 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-580, Revision 1 ML23052A0652023-02-21021 February 2023 NRR E-mail Capture - Dresden Units 2 and 3 - Request for Additional Information for Alternative Request RV-23H ML23026A0172023-01-23023 January 2023 NRR E-mail Capture - (External_Sender) IEMA Response Action - Request for Comments on the Proposed Issuance of Amendment to Technical Specification 4.3.1 for Dresden Nuclear Power Station, Units 2 and 3 ML23019A0132023-01-12012 January 2023 NRR E-mail Capture - Final RAI Dresden 2 and 3 - License Amendment Pertaining to GNF3 Fuel Transition 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 ML22325A1212022-11-21021 November 2022 NRR E-mail Capture - NRC Acceptance Review Re Dresden, Units 2 and 3 Request for Relief RV-02D (EPID L-2022-LLR-0075), RV-03 (EPID L-2022-LLR-0076), and RV-23H ML22301A0902022-10-28028 October 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-301, Revision 2 ML22290A0842022-10-13013 October 2022 NRR E-mail Capture - Dresden 2 and 3 - RAI License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies ML22258A1882022-09-15015 September 2022 NRR E-mail Capture - Acceptance Review: Dresden 2 and 3 License Amendment Request to Revise Technical Specification 3.1.4, ML22258A1872022-09-13013 September 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3, Amendment Request - Transition to GNF3 Fuel ML22229A0752022-08-16016 August 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief 16R-09 ML22229A0762022-08-16016 August 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief 16R-10 ML22203A0442022-07-21021 July 2022 Request for Additional Information (RAI) ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22199A2412022-07-18018 July 2022 NRR E-mail Capture - Acceptance Review: Dresden Units 2 and 3 - License Amendment Request New Fuel Vault Storage and SFP Criticality Safety Analysis Methodology ML22199A2422022-07-13013 July 2022 NRR E-mail Capture - Draft RAI Dresden 2 and 3 Proposed Alternative Related to Sblc Nozzle Inspection for the Sixth Inservice Inspection Interval ML22103A2112022-04-12012 April 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief (16R-01) - EPID L-2022-LLR-0037 ML22103A2132022-04-12012 April 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief (16R-02) - EPID L-2022-LLR-0038 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 ML22039A2042022-02-0808 February 2022 NRR E-mail Capture - Public Meeting Dresden/Quad Cities - Proposed Alternative to Use ASME Code Case N-921 ML22027A3592022-01-26026 January 2022 U1: CY2022 Inspection Plan, Docket No. 05000010, License No. DPR-2 ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21321A3802021-11-17017 November 2021 NRR E-mail Capture - NRC Acceptance Review of Dresden Nuclear Power Station, Units 2 and 3, Request for Exemption from 10 CFR 2.109(b) ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21252A0482021-09-0707 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Alternative Request for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21244A4012021-08-10010 August 2021 (Final) Request for Information (RAI) Dresden, Units 1, 2, 3, and ISFSI Request for Exemptions from Portions of 10 CFR 50.47 and 10 CFR 50 Appendix E ML21215A3502021-08-0303 August 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-554 ML21190A0192021-07-0808 July 2021 NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T ML21154A0112021-05-28028 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 2024-09-06
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24142A3352024-05-21021 May 2024 Quad Cities—Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes ML24066A0872024-03-0404 March 2024 NRR E-mail Capture - Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 ML24067A1242024-03-0101 March 2024 Email to Christian Williams: Request for Additional Information Regarding Dresden Relief Request Dated February 23, 2024 ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23187A0462023-07-0606 July 2023 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000237/2023004 ML23110A3202023-04-21021 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection ML23052A0652023-02-21021 February 2023 NRR E-mail Capture - Dresden Units 2 and 3 - Request for Additional Information for Alternative Request RV-23H ML23037A9192023-02-0707 February 2023 Request for Information for the NRC Quadrennial Comprehensive Engineering Team Inspection: Inspection Report 05000237/2023011 and 05000249/2023011 ML23019A0132023-01-12012 January 2023 NRR E-mail Capture - Final RAI Dresden 2 and 3 - License Amendment Pertaining to GNF3 Fuel Transition ML22290A0842022-10-13013 October 2022 NRR E-mail Capture - Dresden 2 and 3 - RAI License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies ML22270A1032022-09-27027 September 2022 Notification of NRC Baseline Inspection and Request for Information (05000249/2022004) ML22203A0442022-07-21021 July 2022 Request for Additional Information (RAI) ML22199A2422022-07-13013 July 2022 NRR E-mail Capture - Draft RAI Dresden 2 and 3 Proposed Alternative Related to Sblc Nozzle Inspection for the Sixth Inservice Inspection Interval 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 ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21244A4012021-08-10010 August 2021 (Final) Request for Information (RAI) Dresden, Units 1, 2, 3, and ISFSI Request for Exemptions from Portions of 10 CFR 50.47 and 10 CFR 50 Appendix E ML21190A0192021-07-0808 July 2021 NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21097A2602021-04-0808 April 2021 Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information ML21096A1752021-04-0606 April 2021 Notification of NRC Fire Protection Team Inspection Request for Information: Inspection Report 05000237/2021011; 05000249/2021011 ML21063A3202021-03-0202 March 2021 RAIs for Dresden, Units 2 and 3, Proposed Defueled Technical Specifications and Revised License Conditions for Permanently Defueled Condition (EPID L-2020-LLA-0239) (E-mail) 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 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) ML20337A4242020-12-0202 December 2020 Information Request for the Cyber-Security Full Implementation Inspection, Notification to Perform Inspection 05000237/2021401 and 05000249/2021401 ML20239A7982020-08-25025 August 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet License Amendment Request to Adopt TSTF-568, Revision 2 ML20231A7432020-08-18018 August 2020 Request for Additional Information (IOLB/HFT-RAI-1) Dresden MSIV LAR ML20224A3532020-08-11011 August 2020 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000249/2020004 ML20135H1972020-05-14014 May 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Extend Safety Relief Valve Test Interval ML20094H0292020-03-27027 March 2020 Final: Dresden, Units 2 & 3 LAR Request for Additional Information to Modify Technical Specifications to Main Steam Isolation Valve Leakage Requirements ML20071G2242020-03-11011 March 2020 Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information ML19330E1772019-11-25025 November 2019 RAI Dresden/Clinton Request for LAR to Modify TSs Following Adoption of TSTF-542 ML19226A3712019-08-14014 August 2019 Ltr. 08/14/19 Dresden Nuclear Power Station, Unit 2 - Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000237/2019004 (DRS-M.Domke) ML18330A2382018-11-21021 November 2018 Initial Information Request (Part 1) for the Upcoming Phase IV License Renewal Inspection; Inspection Report 05000237(249)/2019010; E-Mailed 11/21/18 (DRS-J.Corujo-Sandin) ML18067A1482018-03-0808 March 2018 Enclosurequest for Additional Information (Letter to P. R. Simpson Request for Additional Information Regarding Exelon Generating Company, Llc'S Decommissioning Funding Plan Update for Independent Spent Fuel Storage Installation) ML17353A9492018-01-0909 January 2018 Supplemental Information Needed for Acceptance of License Amendment Request to Revise Technical Specification Requirements for Secondary Containment ML18002A4572017-12-22022 December 2017 NRR E-mail Capture - (External_Sender) (External) Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 Primary Containment Leakage Rate Testing Program ML17360A0082017-12-22022 December 2017 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 Primary Containment Leakage Rate Testing Program ML17363A4422017-12-21021 December 2017 Supplemental Request for Information for 50.59 Inspection (DRS-A.Shaikh) ML17342A7372017-12-0808 December 2017 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Draft RAIs to Support Request to Revise TS 5.5.12 Primary Containment Leakage Rate Testing Program ML17191A2582017-07-11011 July 2017 RAI Related to License Amendment Request to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler-542, Revision 2 (CAC NOS.MF9295 and MF9296) ML17159A6292017-06-0707 June 2017 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg) ML17062A4912017-03-0303 March 2017 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Fleet Alternative to RPV Threads in Flange Examination (CAC Nos. MF8712-MF8729) ML16308A1002016-11-10010 November 2016 Request for Additional Information Regarding License Amendment Request to Revise Secondary Containment Access Opening Requirements (Cac. No. MF7325-MF7330) ML16208A0282016-07-25025 July 2016 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000249/2016004 (LAS) ML16172A1112016-06-29029 June 2016 Request for Additional Information Regarding License Amendment Request to Revise Secondary Containment Access Opening Requirements(Cac Nos.MF7325-MF7330) ML16153A2812016-06-0808 June 2016 Request for Additional Information Related to the License Amendment Request to Increase the Minimum Required Fuel Oil in Each Standby Diesel Generator Fuel Oil Day Tank (CAC Nos. MF7158 and MF7159) ML16071A2062016-03-15015 March 2016 RAI Regarding License Amendment Request to Revise the Reactor Steam Dome Pressure in Technical Specification 2.1.1, Reactor Core Sls(Cac Nos. MF6640 & MF6644) ML15329A2462016-01-19019 January 2016 Request for Additional Information Related to the License Amendment Request to Transition to Areva Fuel ML15232A6702015-09-29029 September 2015 Request for Additional Information Related to Dresden Units 2 and 3 License Amendment Request for Spent Fuel Storage Criticality Methodology 2024-05-21
[Table view] |
Text
From: Surinder Arora Sent: Monday, March 4, 2024 3:24 PM To: Mathews, Mitchel A:(Constellation Nuclear)
Cc: Jeff Whited
Subject:
Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 (EPID: L-2023-LLR-0063)
Mr. Mathews,
As we discussed in the last biweekly status meeting, the following is the request for additional information (RAI) pertaining to the Alternative Request I5R-22 submitted by Constellation for Dresden, Units 2 and 3. Thanks for your email confirming that Constellation does not need a clarification call to discuss the RAI questions. Please provide your response to the staffs questions within 30 days, by April3 from today (i.e., by April 3, 2024).
- Thanks, Surinder Arora, P. E.
Project Manager, Fermi 2 and Dresden 2 & 3 NRR/DORL/LPL3 surinder.arora@nrc.gov 301-415-1421
REQUEST FOR ADDITIONAL INFORMATION
BY THE OFFICE OF NUCLEAR REACTOR REGULATION
RELIEF REQUEST I5R-22
FIFTH INSERVICE INSPECTION INTERVAL
CONSTELLATION ENERGY GENERATION, LLC
DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3
DOCKET NOS. 50-237 AND 50-249
EPID NO. L-2023-LLR-0063
=
Background===
By letter dated November 8, 2023 (ML23312A092), Constellation Energy Generation, LLC (Constellation, the licensee), submitted relief request I5R-22 to the U.S. Nuclear Regulatory Commission (NRC) regarding limited examination coverage of certain welds at the Dresden Nuclear Power Station, Units 2 and 3 (DNPS) for the fifth inservice inspection (ISI) interval.
Specifically, pursuant to Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(g)(5)(iii),
the licensee requested relief due to the impracticality of satisfying the requirements of the American Society of Mechanical Engineers Boiler & Pressure Vessel Code (ASME Code),
Section XI, Rules for Inservice Inspection of Nuclear\\Power Plant Components, because of the DNPS plant design.
The NRC staff requests the response to the following request for additional information (RAI) to complete its review of relief request I5R-22.
Regulatory Basis
Adherence to Section XI of the ASME Code is mandated by 10 CFR 50.55a(g)(4), which states, in part, that ASME Code Class 1, 2, and 3 components will meet the requirements, except the design and access provisions and the pre-service examination requirements, set forth in the ASME Code,Section XI.
Inservice Inspection (ISI) of ASME Code Class 1, 2, and 3 components is to be performed in accordance with Section XI of the ASME Code and applicable edition and addenda as required by 10 CFR Section 50.55a(g), except where specific relief has been granted by the U.S. Nuclear Regulatory Commission (NRC or the Commission) pursuant to 10 CFR 50.55a(g)(6)(i). 10 CFR 50.55a(g)(5)(iii) states in part that licensees may determine that conformance with certain code requirements is impractical and that the licensee shall notify the Commission and submit information in support of the determination.
RAI 1
Issue
The licensee reported recordable indications in the Examination Category B-K welds at DNPS.
Table A in the Attachment to the submittal states that five recordable rounded indications in component ID 2/1/1506-16/M-1164D-296 (IWA) at DNPS Unit 2 were detected. Similarly, Table B in the Attachment to the submittal states that two recordable rounded indications in component ID 3/1/RPV SHELL/M-1211D-1 (IWA) at DNPS Unit 3 were detected. The acceptance standards for these indications are in IWB-3516 per Table IWB-2500-1 of ASME Code,Section XI for Examination Category B-K. The associated enclosures did not provide sufficient information on the disposition of these recordable indications.
Request
Clarify how the recordable indications in component IDs 2/1/1506-16/M-1164D-296 (IWA) and 3/1/RPV SHELL/M-1211D-1 (IWA) were dispositioned per the acceptance standards in IWB-3516 of ASME Code,Section XI.
RAI 2
Issue
The staff needs clarity on the recordable indications detected in component IDs 3/1/RPV SHELL/3-SC3C-VERT and 3/1/RPV SHELL/3-SC4B-VERT at DNPS Unit 3, as reported in Table B in the Attachment to the submittal.
Request
Clarify whether the indications detected in component IDs 3/1/RPV SHELL/3-SC3C-VERT and 3/1/RPV SHELL/3-SC4B-VERT at DNPS Unit 3 are fabrication flaws and whether they were the same indications detected in the previous (fourth) ISI interval.
Hearing Identifier: NRR_DRMA Email Number: 2420
Mail Envelope Properties (BY3PR09MB8225789A110FDF977428992694232)
Subject:
Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 (EPID L-2023-LLR-0063)
Sent Date: 3/4/2024 3:24:18 PM Received Date: 3/4/2024 3:24:00 PM From: Surinder Arora
Created By: Surinder.Arora@nrc.gov
Recipients:
"Jeff Whited" <Jeffrey.Whited@nrc.gov>
Tracking Status: None "Mathews, Mitchel A:(Constellation Nuclear)" <Mitchel.Mathews@constellation.com>
Tracking Status: None
Post Office: BY3PR09MB8225.namprd09.prod.outlook.com
Files Size Date & Time MESSAGE 4319 3/4/2024 3:24:00 PM
Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: