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| Draft Requests for Additional Information for H.B. Robinson LAR Regarding the Revision to the Reactor Pressure Vessel (RPV) Material Surveillance Program Withdrawal Schedule - RPV Surveillance Capsule Removal Attachments: EPID L-2019-LLL-0021 - RAI - Robinson Capsule U Request - Staff RAIs 10-15-2019 DA.docx Mr. Zaremba, By letter dated May 2, 2019 (Agencywide Documents Access and Management System Accession No. | | Draft Requests for Additional Information for H.B. Robinson LAR Regarding the Revision to the Reactor Pressure Vessel (RPV) Material Surveillance Program Withdrawal Schedule - RPV Surveillance Capsule Removal Attachments: EPID L-2019-LLL-0021 - RAI - Robinson Capsule U Request - Staff RAIs 10-15-2019 DA.docx Mr. Zaremba, By letter dated May 2, 2019 (Agencywide Documents Access and Management System Accession No. ML19122A012), Duke Energy (the licensee) submitted a request for NRC approval of a proposed revision to the reactor pressure vessel (RPV) surveillance capsule removal schedule for the H.B. Robinson Steam Electric Plant, Unit 2 Facility (Robinson). Specifically, the licensee proposes to allow the following regulatory commitment: |
| ML19122A012), Duke Energy (the licensee) submitted a request for NRC approval of a proposed revision to the reactor pressure vessel (RPV) surveillance capsule removal schedule for the H.B. Robinson Steam Electric Plant, Unit 2 Facility (Robinson). Specifically, the licensee proposes to allow the following regulatory commitment: | |
| RPV Capsule U will be withdrawn at 41.3 effective full-power years (EFPY) or during the scheduled outage after the 80-year peak vessel fluence is reached, but prior to 57.1 EFPY. | | RPV Capsule U will be withdrawn at 41.3 effective full-power years (EFPY) or during the scheduled outage after the 80-year peak vessel fluence is reached, but prior to 57.1 EFPY. |
| to replace the existing commitment to allow the capsule to be withdrawn at 38.0 EFPY or during the scheduled outage after the 80-year peak vessel fluence is reached. To complete its review, the U.S. Nuclear Regulatory Commission (NRC) staff has prepared the attached requests for additional information (RAIs) in DRAFT form. | | to replace the existing commitment to allow the capsule to be withdrawn at 38.0 EFPY or during the scheduled outage after the 80-year peak vessel fluence is reached. To complete its review, the U.S. Nuclear Regulatory Commission (NRC) staff has prepared the attached requests for additional information (RAIs) in DRAFT form. |
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Category:E-Mail
MONTHYEARML24002A7382024-01-0202 January 2024 NRR E-mail Capture - Request for Additional Information Regarding Duke'S August 20, 2023, License Amendment Request for Robinson, Unit 2 ML23262B4502023-09-19019 September 2023 NRR E-mail Capture - H. B. Robinson Steam Electric Plant, Unit 2 - Acceptance of License Amendment Request to Exclude the Dynamic Effects of Specific Postulated Pipe Ruptures Based on Leak-Before-Break Methodology ML23220A2342023-08-0808 August 2023 NRR E-mail Capture - Robinson, Unit 2 - Acceptance Review Results for Revision to Reactor Vessel Surveillance Capsule Withdrawal Schedule ML23172A0132023-06-20020 June 2023 Duke Fleet - Correction to June 2, 2023, Request for Additional Information Proposed License Amendment Request to Revise Restrictive Surveillance Requirement Frequencies ML23153A1892023-06-0202 June 2023 Duke Fleet - Request for Additional Information Proposed License Amendment Request to Revise Restrictive Surveillance Requirement Frequencies ML23151A3482023-05-30030 May 2023 Duke Fleet - Request for Additional Information Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) ML23142A2732023-05-22022 May 2023 Duke Fleet - Request for Additional Information Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1) ML23131A4192023-05-10010 May 2023 003 Radiation Safety Baseline Inspection Information Request ML23124A1212023-05-0404 May 2023 Acceptance of Requested Licensing Action Duke Fleet Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) ML23073A2282023-03-13013 March 2023 Duke Fleet- Adoption of TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements - Acceptance Review ML23058A0562023-02-27027 February 2023 Acceptance of Amendment to Revise Surveillance Frequencies for RCS Pressure Isolation Valve Operational Leakage Testing and Reactor Trip System Instrumentation ML23048A1512023-02-16016 February 2023 Acceptance Review - Proposed Alternative for Steam Generator Welds (L-2023-LLR-0003) ML23011A0152023-01-11011 January 2023 NRR E-mail Capture - Request for Additional Information to Duke'S Request for Robinson to Add Feedwater Isolation Function to TS 3.3.2 and Remove Obsolete Content from TSs 2.1.1.1 and 5.6.5.b ML22285A1552022-10-12012 October 2022 NRR E-mail Capture - H. B. Robinson, Unit 2 - Acceptance of License Amendment Request Regarding the Addition of Feedwater Isolation Function to TS 3.3.2 and Removal of Obsolete Content from TS 2.1.1.1 and TS 5.6.5.b ML22222A1082022-08-10010 August 2022 NRR E-mail Capture - Request for Additional Information Regarding Duke'S Request to Remove 4.160 Kv Bus 2 from Surveillance Requirement 3.8.1.16 ML22146A3652022-05-25025 May 2022 Acceptance of Requested Licensing Action License Amendment Request for Application to Revise Surveillance Requirement 3.8.1.16 ML22115A1412022-04-25025 April 2022 NRR E-mail Capture - Duke Common EOF Relocation - Request for Addition Information ML22112A1482022-04-22022 April 2022 Correction_H. B. Robinson Steam Electric Plant, Unit 2 - Request for Additional Information Regarding Supplemental Response to Generic Letter 2004-02 ML22080A0042022-03-18018 March 2022 Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Adopt TSTF-577, Revised Frequencies for Steam Generator Tube Inspections ML22038A1572022-02-0707 February 2022 NRR E-mail Capture - Duke Energy Fleet - Acceptance of License Amendment Request Regarding Adoption of TSTF-541, Revision 2 ML22018A0272022-01-18018 January 2022 2022 All RFI Responses - Exercise and Program Inspections - Revl ML22012A3662022-01-12012 January 2022 Acceptance of Requested Licensing Action License Amendment Re2uest for Application to Revise Technical Specification to Adopt TSTF-577, Revised Frequencies for Steam Generating Tube Inspections ML22005A0872022-01-0505 January 2022 Acceptance of Requested Licensing Action Correction to Non-Conservative Technical Specifications Figure 3.4.3-2, Pressure/Temperature Limit Cooldown Curves ML21361A0122021-12-23023 December 2021 NRR E-mail Capture - Accepted for Review - Duke Energy Fleet License Amendment Request to Relocate Emergency Operations Facility ML21295A2992021-10-22022 October 2021 Document Request for Robinson Nuclear Plant - Radiation Protection Inspection - Inspection Report 2021004 ML21286A6612021-10-13013 October 2021 Acceptance for Review of Proposed Alternative ISI-05-017 for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections ML21119A2272021-04-29029 April 2021 NRR E-mail Capture - Robinson Relief Request Acceptance Review Results; IST-RR-9, EPID: L-2021-LLR-0024 ML21116A2592021-04-26026 April 2021 NRR E-mail Capture - Robinson Relief Request Acceptance Review Results; IST-RR-8, EPID: L-2021-LLR-0023 ML21116A2582021-04-26026 April 2021 NRR E-mail Capture - Robinson Relief Request Acceptance Review Results; IST-RR-3, EPID: L-2021-LLR-0020 ML21113A1312021-04-23023 April 2021 NRR E-mail Capture - Robinson Relief Request Acceptance Review Results; IST-RR-5, EPID: L-2021-LLR-0021 ML21110A1462021-04-20020 April 2021 NRR E-mail Capture - Robinson Relief Request Acceptance Review Results: IST-RR-7, EPID: L-2021-LLR-0022 ML21049A2632021-02-0404 February 2021 NRR E-mail Capture - Request for Additional Information - Duke Energy Fleet License Amendment Request to Revise Emergency Plan ML20353A1302020-12-18018 December 2020 2021 Hbr 50.59 Info Request - E-mail Request- Upcoming 50.59 Inspection (IP71111.17T)- Week of March 1-5, 2021 ML20323A4072020-11-18018 November 2020 NRR E-mail Capture - Request for Additional Information - Brunswick License Exemption Request from 10CFR73 Annual Force on Force Exercise Requirements (EPIC L-2020-LLE-0180) ML20297A3102020-10-13013 October 2020 NRR E-mail Capture - Acceptance Review - Duke Fleet - RA-20-0191 - Request to Use a Provision of a Later Edition of the ASME B&PV Code, Section XI - IWA-5120, IWA-5213, IWA-5241, IWA-5242, and IWA-5250 (L-2020-LLR-0126) ML20297A3082020-10-0707 October 2020 NRR E-mail Capture - Acceptance Review - Duke Fleet - RA-20-0263 - Request to Use a Provision of a Later Edition of the ASME B&PV Code, Section XI for Repair/Replacement (L-2020-LLR-0124) ML20297A3092020-10-0606 October 2020 NRR E-mail Capture - Acceptance Review - Duke Fleet - RA-20-0262 - Request to Use a Provision of a Later Edition of the ASME B&PV Code, Section XI - IWA-4540(b) (L-2020-LLR-0125) ML20063M1942020-02-21021 February 2020 NRR E-mail Capture - Accepted for Review - Robinson Unit 2 One-Time Pressure Relief Valve Test Frequency Extension EPID: L-2020-LLR-0019 ML20085F9312020-02-20020 February 2020 SPRA - Spr Audit Questions - 2nd Batch ML20049A0342020-02-16016 February 2020 NRR E-mail Capture - Accepted for Review - Robinson Unit 2 to Correct Administrative Renewed Facility Operating License Error in the 50.69 LAR EPID: L-2020-LLL-0000 ML20063L4562020-02-0404 February 2020 NRR E-mail Capture - RAI - Robinson Relief Req Rx Vessel Cold Leg Nozzle Dissimilar Meter Butt Weld Inspection Interval EPID L-2019-LLR-0072 ML20087N6632020-02-0303 February 2020 SPRA - Spr Audit Questions Redacted ML20027C2042020-01-27027 January 2020 Audit Documents Needed for the Robinson Seismic Probabilistic Risk Assessment Review - FLEX and HRA References ML20015A1892020-01-13013 January 2020 Audit Documents Needed for the Robinson SPRA Review - Fragility Analysis ML20009C0922020-01-0808 January 2020 Audit Documents Needed for the Robinson SPRA Review - Seismic Hazard Analysis ML19365A0482019-12-30030 December 2019 Request for Eportal Access for Audit Review of the Robinson SPRA Supporting Documents ML19365A0462019-12-18018 December 2019 Audit Documents Needed for the Robinson SPRA Review ML19288A2942019-10-15015 October 2019 NRR E-mail Capture - RAIs for Robinson Revision to RPV Surveillance Program Withdrawal Schedule ML19283A0372019-09-26026 September 2019 Draft Requests for Additional Information for H.B. Robinson LAR to Revise TS 3.8.2, AC Sources - Shutdown, SR 3.8.2.1 ML19235A1202019-08-21021 August 2019 Acceptance Review for Robinson LAR to Add Feedwater Bypass Valve to TS 3.7.3 (L-2019-LLA-0170) 2024-01-02
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24002A7382024-01-0202 January 2024 NRR E-mail Capture - Request for Additional Information Regarding Duke'S August 20, 2023, License Amendment Request for Robinson, Unit 2 ML23235A0552023-08-23023 August 2023 Notification of an Fire Protection Team Inspection (FPTI) (NRC Inspection Report 05000261/2023010) and Request for Information (RFI) ML23151A3482023-05-30030 May 2023 Duke Fleet - Request for Additional Information Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) ML23142A2732023-05-22022 May 2023 Duke Fleet - Request for Additional Information Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1) ML23047A4512023-02-21021 February 2023 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000261/2023402 ML23011A0152023-01-11011 January 2023 NRR E-mail Capture - Request for Additional Information to Duke'S Request for Robinson to Add Feedwater Isolation Function to TS 3.3.2 and Remove Obsolete Content from TSs 2.1.1.1 and 5.6.5.b ML22222A1082022-08-10010 August 2022 NRR E-mail Capture - Request for Additional Information Regarding Duke'S Request to Remove 4.160 Kv Bus 2 from Surveillance Requirement 3.8.1.16 ML22115A1412022-04-25025 April 2022 NRR E-mail Capture - Duke Common EOF Relocation - Request for Addition Information ML22112A1482022-04-22022 April 2022 Correction_H. B. Robinson Steam Electric Plant, Unit 2 - Request for Additional Information Regarding Supplemental Response to Generic Letter 2004-02 ML22080A0042022-03-18018 March 2022 Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Adopt TSTF-577, Revised Frequencies for Steam Generator Tube Inspections ML21049A2632021-02-0404 February 2021 NRR E-mail Capture - Request for Additional Information - Duke Energy Fleet License Amendment Request to Revise Emergency Plan ML20353A1312020-12-18018 December 2020 2021 Hbr 50.59 Info Request ML20323A4072020-11-18018 November 2020 NRR E-mail Capture - Request for Additional Information - Brunswick License Exemption Request from 10CFR73 Annual Force on Force Exercise Requirements (EPIC L-2020-LLE-0180) ML20191A2122020-07-0909 July 2020 012 FPTI Notification Letter ML20063L4562020-02-0404 February 2020 NRR E-mail Capture - RAI - Robinson Relief Req Rx Vessel Cold Leg Nozzle Dissimilar Meter Butt Weld Inspection Interval EPID L-2019-LLR-0072 ML20022A1942020-01-22022 January 2020 Emergency Preparedness Program Inspection Request for Information ML19365A0462019-12-18018 December 2019 Audit Documents Needed for the Robinson SPRA Review ML19288A2942019-10-15015 October 2019 NRR E-mail Capture - RAIs for Robinson Revision to RPV Surveillance Program Withdrawal Schedule ML19288A2462019-09-26026 September 2019 Request for Additional Information Regarding Change to Surveillance Requirement 3.8.2.1 H.B. Robinson Unit No. 2 ML19283A0372019-09-26026 September 2019 Draft Requests for Additional Information for H.B. Robinson LAR to Revise TS 3.8.2, AC Sources - Shutdown, SR 3.8.2.1 ML19072A0292019-03-13013 March 2019 50.69 LAR RAIs ML19011A1372019-01-10010 January 2019 NRR E-mail Capture - Duke Energy Fleet RAIs - Relief Request 18-GO-001 - Proposed Alternative for Depth Sizing Qualification Examination of Welds (L-2018-LLR-0117) ML19007A3422018-12-21021 December 2018 NRR E-mail Capture - Duke Energy Fleet Draft RAIs - Relief Request 18-GO-001 - Proposed Alternative for Depth Sizing Qualification Examination of Welds (L-2018-LLR-0117) ML18291A6442018-10-17017 October 2018 NRR E-mail Capture - Robinson RAIs - Duke Energy 10 CFR 50.46 Annual Report ML18288A0192018-10-12012 October 2018 NRR E-mail Capture - Robinson RAIs - LAR to Allow Implementation of the Provisions 10 CFR 50.69 (EPID L 2018-LLA-0095) and LAR to Adopt TSTF-425 ML18274A2632018-09-28028 September 2018 NRR E-mail Capture - Robinson Draft RAIs - LAR to Allow Implementation of the Provisions 10 CFR 50.69 (EPID L 2018-LLA-0095) and LAR to Adopt TSTF-425 ML18211A6042018-07-30030 July 2018 NRR E-mail Capture - Robinson Supplemental RAI - LAR to Revise TS to Add a 2nd Qualified Offsite Power Circuit and Revise UFSAR to Operate LTCs in Automatic Mode (CAC No. MG0276; L-2017-LLA-0308) ML18206B0612018-07-25025 July 2018 NRR E-mail Capture - Draft Robinson Supplemental RAI - LAR to Revise TS to Add a 2nd Qualified Offsite Power Circuit and Revise UFSAR to Operate LTCs in Automatic Mode (CAC No. MG0276; L 2017-LLA-0308) ML18116A1052018-04-25025 April 2018 NRR E-mail Capture - Harris/Robinson RAIs - Change Technical Specifications to Support Performance of Core Reload Design and Safety Analyses (L-2017-LLA-0356) ML18108A7602018-04-18018 April 2018 NRR E-mail Capture - Harris/Robinson Draft RAIs - Change Technical Specifications to Support Performance of Core Reload Design and Safety Analyses (L-2017-LLA-0356) ML18108A7592018-04-18018 April 2018 NRR E-mail Capture - Robinson RAIs - LAR to Revise TS to Add a 2nd Qualified Offsite Power Circuit and Revise UFSAR to Operate LTCs in Automatic Mode (CAC No. MG0276; L 2017-LLA-0308) ML18102B0812018-04-12012 April 2018 NRR E-mail Capture - Draft Robinson RAIs - LAR to Revise TS to Add a 2nd Qualified Offsite Power Circuit and Revise UFSAR to Operate LTCs in Automatic Mode (CAC No. MG0276; L 2017-LLA-0308) ML18074A0052018-03-15015 March 2018 Heat Sink Emailed Heat Sink RFI Request 2018 ML17345A8772017-12-11011 December 2017 NRR E-mail Capture - Harris and Robinson Supplemental RAI - LAR to Adopt DPC-NE-3009-P, Revision 0, Thermal-Hydraulic Models for Transient Analysis, (L-2016-LLA-0012) ML17339A0722017-12-0404 December 2017 NRR E-mail Capture - Subject: Harris and Robinson Draft Supplemental RAIs - LAR to Adopt DPC-NE-3009-P, Revision 0, Thermal-Hydraulic Models for Transient Analysis, (L-2016-LLA-0012) ML17248A0182017-08-31031 August 2017 NRR E-mail Capture - Robinson RAIs - Change Technical Specification Surveillance Requirement Frequencies to Support 24-Month Fuel Cycles (MF9544) ML17235A2612017-08-22022 August 2017 NRR E-mail Capture - Robinson RAIs - Change Technical Specification Surveillance Requirement Frequencies to Support 24-Month Fuel Cycles (MF9544) ML17192A4842017-07-11011 July 2017 NRR E-mail Capture - Duke Energy Fleet RAIs Alternative for Reactor Pressure Vessel Flange Threads Examination (MF9513 to MF9521) ML17114A0462017-04-21021 April 2017 Notification of Inspection and Request for Information ML16288A0782016-10-26026 October 2016 Shearon Harris Nuclear Power Plant, Unit 1, and H.B. Robinson Steam Electric Plant, Unit No. 2 - Redacted, Request for Additional Information Re: Request to Adopt DPC-NF-2010 and DPC-NF-2011 Nuclear Design Methodology (CAC Nos. MF7693 and MF7694) ML16130A5982016-05-0505 May 2016 Notification of Inspection and Request for Information ML16048A3492016-03-0202 March 2016 RAI Regarding License Amendment Request to Adopt National Fire Protection Association Standard 805, Performance-Based Standard for Fire Protection for Light Water Reactor Electric Generating Plants ML16019A0532016-02-0808 February 2016 Request for Additional Information Related to the Pressurized Water Reactors Internals Program Plan for Aging Management of Reactor Internals ML16026A0512016-01-25025 January 2016 Robinson EP RFI 2016-001 ML15344A0302015-12-17017 December 2015 Request for Additional Information Application to Revise Technical Specifications for Methodology Report DPC-NE-2005-P, Revision 5, Thermal Hydraulic Statistical Core Design Methodology (MF5872/MF5873) ML15215A6512015-08-10010 August 2015 Duke Energy Progress, Inc., for H. B. Robinson, Unit 2 and Shearon Harris, Unit 1, Request for Additional Information Regarding Application to Revise Technical Specifications for Methodology Report DPC-NE-2005-P, Revision 5 (TAC Nos. MF5872 ML15009A3352015-01-0808 January 2015 Requalification Program Inspection - H.B. Robinson Nuclear Plant RNP-RA/14-0118, Response to Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic Re-Evaluations Related to Southeastern Catalog Changes2014-11-12012 November 2014 Response to Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic Re-Evaluations Related to Southeastern Catalog Changes ML14268A5162014-10-23023 October 2014 Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic Re-evaluation Related to Southeastern Catalog Changes ML14057A6502014-02-26026 February 2014 Notification of Inspection and Request for Information for NRC Problem Identification and Resolution Inspection 2024-01-02
[Table view] |
Text
NRR-DRMAPEm Resource From: Jordan, Natreon Sent: Tuesday, October 15, 2019 2:01 PM To: Zaremba, Arthur H.
Cc: Barillas, Martha; Gonzalez, Hipolito
Subject:
Draft Requests for Additional Information for H.B. Robinson LAR Regarding the Revision to the Reactor Pressure Vessel (RPV) Material Surveillance Program Withdrawal Schedule - RPV Surveillance Capsule Removal Attachments: EPID L-2019-LLL-0021 - RAI - Robinson Capsule U Request - Staff RAIs 10-15-2019 DA.docx Mr. Zaremba, By letter dated May 2, 2019 (Agencywide Documents Access and Management System Accession No. ML19122A012), Duke Energy (the licensee) submitted a request for NRC approval of a proposed revision to the reactor pressure vessel (RPV) surveillance capsule removal schedule for the H.B. Robinson Steam Electric Plant, Unit 2 Facility (Robinson). Specifically, the licensee proposes to allow the following regulatory commitment:
RPV Capsule U will be withdrawn at 41.3 effective full-power years (EFPY) or during the scheduled outage after the 80-year peak vessel fluence is reached, but prior to 57.1 EFPY.
to replace the existing commitment to allow the capsule to be withdrawn at 38.0 EFPY or during the scheduled outage after the 80-year peak vessel fluence is reached. To complete its review, the U.S. Nuclear Regulatory Commission (NRC) staff has prepared the attached requests for additional information (RAIs) in DRAFT form.
If a clarification call is needed by the licensee to discuss the attached draft RAIs and the due date for the RAI responses, please contact either Martha Barillas by email or at 301-415-2760, or myself at 301-415-7410. The NRC request response to the RAIs within 30 days of this email in order to support your license amendment request. If you do not believe you can meet the response date, please provide an acceptable alternate date and justification for extending the response date.
- Thanks,
-Nate Natreon (Nate) Jordan Nuclear Engineer (Project Manager)
Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop O-8B1A Washington, DC 20555 301-415-7410 natreon.jordan@nrc.gov 1
Hearing Identifier: NRR_DRMA Email Number: 266 Mail Envelope Properties (BN6PR09MB1236F367DA919754F2B4130D8A930)
Subject:
Draft Requests for Additional Information for H.B. Robinson LAR Regarding the Revision to the Reactor Pressure Vessel (RPV) Material Surveillance Program Withdrawal Schedule -
RPV Surveillance Capsule Removal Sent Date: 10/15/2019 2:00:43 PM Received Date: 10/15/2019 2:00:00 PM From: Jordan, Natreon Created By: Natreon.Jordan@nrc.gov Recipients:
"Barillas, Martha" <Martha.Barillas@nrc.gov>
Tracking Status: None "Gonzalez, Hipolito" <Hipolito.Gonzalez@nrc.gov>
Tracking Status: None "Zaremba, Arthur H." <Arthur.Zaremba@duke-energy.com>
Tracking Status: None Post Office: BN6PR09MB1236.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 1796 10/15/2019 2:00:00 PM EPID L-2019-LLL-0021 - RAI - Robinson Capsule U Request - Staff RAIs 10-15-2019 DA.docx 41737 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION 10 CFR PART 50, APPENDIX H WITHDRAWAL SCHEDULE CHANGE REQUEST DUKE ENERGY COMPANY H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT 2 DOCKET NUMBER 50-261 EPID: L-2019-LLL-0021 By letter dated May 2, 2019 (Agencywide Document Access and Management System (ADAMS) Accession No. ML19122A012), Duke Energy Company (the licensee) submitted a reactor pressure vessel (RPV) material surveillance program withdrawal schedule change for the H. B Robinson Steam Electric Plant, Unit 2. The licensee submitted its request in accordance with the reporting requirements specified in the 10 CFR Part 50, Appendix H, Reactor Vessel Material Surveillance Program Requirements (Appendix H).
Specifically, the licensee proposes to amend the time for withdrawing RPV Capsule U from the reactor from 38 effective full power years (EPFY), when the capsule is projected to achieve an approximate neutron fluence exposure (at the time of removal) of 7.84 x 1019 n/cm2 (E > 1.0 MeV), to 41.3 EFPY, when the capsule is projected to achieve an approximate neutron fluence exposure of 8.09 x 1019 n/cm2 (E > 1.0 MeV). The licensees submittal includes the following regulatory commitment (Commitment #1 in the submittal) in relation to the proposed capsule withdrawal schedule change:
Capsule U will be withdrawn at 41.3 effective full-power years (EFPY) or during the scheduled outage after the 80-year peak vessel fluence is reached, but prior to 57.1 EFPY.
Based on its review of the incoming submittal and the stated commitment, it is not clear when Capsule U will be withdrawn in accordance with the proposed withdrawal schedule for the capsule. For example, according to Section 4.0 of the licensees submittal, Capsule U will be withdrawn at either 41.3 EFPY (at a capsule fluence exposure of 8.09 x 1019 n/cm2 (E > 1.0 MeV)) or during the scheduled outage after the capsule has achieved a neutron fluence exposure equivalent to the peak neutron fluence projected in the RPV at 80 years of operation.
However, per Note 1 on the proposed capsule withdrawal schedule and the commitment statement, the withdrawal of Capsule U could be deferred out to 57.1 EFPY. Given the uncertainty in the proposed withdrawal time for Capsule U, it is not evident how the proposed schedule meets the withdrawal schedule criteria of Appendix H.
RAI-1
Please provide clarification as to how the proposed withdrawal schedule for Capsule U meets the requirements of Appendix H or modify the proposal to provide clarity concerning the proposed schedule.