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| | number = ML120320214 | | | number = ML120320214 |
| | issue date = 02/01/2012 | | | issue date = 02/01/2012 |
| | title = River Bend Station - Email, Request for Additional Information, Relief Requests RBS-ISI-016 for Pressure Retaining Welds in Pumps and Valves and RBS-ISI-017 for Pressure Retaining Welds in Control Rod Housings (TAC Nos. ME6845 and ME6844) | | | title = Email, Request for Additional Information, Relief Requests RBS-ISI-016 for Pressure Retaining Welds in Pumps and Valves and RBS-ISI-017 for Pressure Retaining Welds in Control Rod Housings |
| | author name = Wang A B | | | author name = Wang A |
| | author affiliation = NRC/NRR/DORL/LPLIV | | | author affiliation = NRC/NRR/DORL/LPLIV |
| | addressee name = Burmeister B M, Clark J | | | addressee name = Burmeister B, Clark J |
| | addressee affiliation = Entergy Operations, Inc | | | addressee affiliation = Entergy Operations, Inc |
| | docket = 05000458 | | | docket = 05000458 |
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| =Text= | | =Text= |
| {{#Wiki_filter:From: Wang, Alan Sent: Wednesday, February 01, 2012 10:54 AM To: 'BURMEISTER, BARRY M'; Joseph Clark (JCLARK@entergy.com) Cc: Lent, Susan; Burkhardt, Janet | | {{#Wiki_filter:From: Wang, Alan Sent: Wednesday, February 01, 2012 10:54 AM To: 'BURMEISTER, BARRY M'; Joseph Clark (JCLARK@entergy.com) |
| | Cc: Lent, Susan; Burkhardt, Janet |
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| ==Subject:== | | ==Subject:== |
| River Bend Station Request for Additional Information Regarding RR RBS-ISI-016 and RBS-ISI-017(ME6844 and ME6845) | | River Bend Station Request for Additional Information Regarding RR RBS-ISI-016 and RBS-ISI-017(ME6844 and ME6845) |
| Joey and Barry, By letter dated August 3, 2011 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML11221A164), Entergy Operations, Inc (Entergy, the licensee) submitted Entergy Letter RBG-47166, "Requests for Relief [RR]from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Valves." The NRC staff has determined that the following additional information is needed to complete our review of these RR. This request for additional information (RAI) was discussed with Mr. | | Joey and Barry, By letter dated August 3, 2011 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML11221A164), Entergy Operations, Inc (Entergy, the licensee) submitted Entergy Letter RBG-47166, Requests for Relief [RR]from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Valves. |
| Barry Burmeister of your staff on January 31, 2012, and it was agreed that a response would be provided within 60 days from the issuance of this email. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1445 or via e-mail at Alan.Wang@nrc.gov. The following RAIs are related to your letter dated August 3, 2011: | | The NRC staff has determined that the following additional information is needed to complete our review of these RR. This request for additional information (RAI) was discussed with Mr. |
| : 1) General Question for RRs RBS-ISI-016 and RBS-ISI-017 In the licensee's submittal dated August 3, 2011, it was noted in the cover letter that RR RBS-ISI-016 and RBS ISI-17 were submitted beyond the one year time frame specified under 10 CFR 50.55a(g)(5)(iv) and that the omission had been address in the Entergy's Correction Action Process. Provide an action number, if one exists and date of the action. What was the reason for the lateness in submitting RRs RBS-ISI-016 and RBS-ISI-017 to the NRC? 2) REQUEST FOR RELEIF RBS-ISI-016 ASME CODE, SECTION XI, TABLE IWB-2500-1, EXAMINATION CATEGORY B-O, ITEM 14.10 WELDS IN CONTROL ROD DRIVE (CRD) HOUSINGS a. Since there has been an improvement in visual examinations over the past few years by remote camera, has the licensee considered visual examinations using a remote camera for future visual examinations of the control rod drive (CRD) housings? | | Barry Burmeister of your staff on January 31, 2012, and it was agreed that a response would be provided within 60 days from the issuance of this email. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1445 or via e-mail at Alan.Wang@nrc.gov. |
| : b. In keeping of "As Low As Reasonable Achievable" (ALARA), what would have been the estimated dosage rate if the ASME Code examinations were performed in second 10-year ISI interval? | | The following RAIs are related to your letter dated August 3, 2011: |
| : c. In the staff's evaluation of RR R-004 contained in NUREG-0989, "Safety Evaluation Report Related to the Operation of River Ben Station," Supplement 3, Appendix L, dated May 1984 (ADAMS Accession Number ML09138041), it was stated that: "In the event that the CRD Housings are disassembled for inservice repair or maintenance, so that the subject welds and bolting are accessible, the staff will require that the presevice be performed at that time." Where the CRD housings ever disassembled for inservice repair or maintenance and the preservice examination performed? What were the results, if the examinations were performed? | | : 1) General Question for RRs RBS-ISI-016 and RBS-ISI-017 In the licensees submittal dated August 3, 2011, it was noted in the cover letter that RR RBS-ISI-016 and RBS ISI-17 were submitted beyond the one year time frame specified under 10 CFR 50.55a(g)(5)(iv) and that the omission had been address in the Entergys Correction Action Process. Provide an action number, if one exists and date of the action. |
| : d. Was relief given by the NRC for the ASME Code-required examinations of the CRD Housings in the first 10-year ISI interval? Provide the date of the NRC SE if relief was given. e. Will the licensee commit to perform the required ASME Code examinations in the third 10-year ISI interval if the CRD Housings are disassembled for inservice repair or maintenance, and if the subject welds and bolting are accessible. | | What was the reason for the lateness in submitting RRs RBS-ISI-016 and RBS-ISI-017 to the NRC? |
| : 3) REQUEST FOR RELEIF RBS-ISI-017 ASME Code CLASS 2 C-G, PRESSURE RETAINING WELDS IN PUMPS AND VALVES | | : 2) REQUEST FOR RELEIF RBS-ISI-016 ASME CODE, SECTION XI, TABLE IWB-2500-1, EXAMINATION CATEGORY B-O, ITEM 14.10 WELDS IN CONTROL ROD DRIVE (CRD) |
| : a. Provide materials specifications for the welds and associated components (e.g., pumps and valves) for which relief is requested. Discuss which piping systems these welds belong to. | | HOUSINGS |
| : b. Clarify whether these welds were inspected during fabrications. Provide the date of fabrication and pre-service (PSI) inspection, and inspection methods. Discuss any fabrication flaws detected and repaired. | | : a. Since there has been an improvement in visual examinations over the past few years by remote camera, has the licensee considered visual examinations using a remote camera for future visual examinations of the control rod drive (CRD) housings? |
| : c. Clarify whether these welds have ever been inspected in service in accordance with the requirements of the ASME Code, Section XI, since commercial operation. If yes, discuss the inspection results. If no, provide technical justification for the assurance of the integrity of these welds until the next scheduled inspection. | | : b. In keeping of As Low As Reasonable Achievable (ALARA), what would have been the estimated dosage rate if the ASME Code examinations were performed in second 10-year ISI interval? |
| : d. NRC Information Notice (IN) 2011-04, "Contaminants and Stagnant Conditions Affecting Stress Corrosion Cracking in Stainless Steel Piping in Pressurized water Reactors," discusses potential stress corrosion cracking (SCC) in stainless steel piping. | | : c. In the staffs evaluation of RR R-004 contained in NUREG-0989, Safety Evaluation Report Related to the Operation of River Ben Station, Supplement 3, Appendix L, dated May 1984 |
| : 1. Provide operating pressure and temperature that these welds are exposed to. 2. Discuss the potential for SCC in these welds. | | |
| Alan Wang Project Manager (River Bend Station) Nuclear Regulatory Commission Division of Operating Reactor Licensing Alan.Wang@NRC.gov Tel: (301) 415-1445 Fax: (301) 415-1222}} | | (ADAMS Accession Number ML09138041), it was stated that: In the event that the CRD Housings are disassembled for inservice repair or maintenance, so that the subject welds and bolting are accessible, the staff will require that the presevice be performed at that time. Where the CRD housings ever disassembled for inservice repair or maintenance and the preservice examination performed? What were the results, if the examinations were performed? |
| | : d. Was relief given by the NRC for the ASME Code-required examinations of the CRD Housings in the first 10-year ISI interval? Provide the date of the NRC SE if relief was given. |
| | : e. Will the licensee commit to perform the required ASME Code examinations in the third 10-year ISI interval if the CRD Housings are disassembled for inservice repair or maintenance, and if the subject welds and bolting are accessible. |
| | : 3) REQUEST FOR RELEIF RBS-ISI-017 ASME Code CLASS 2 C-G, PRESSURE RETAINING WELDS IN PUMPS AND VALVES |
| | : a. Provide materials specifications for the welds and associated components (e.g., |
| | pumps and valves) for which relief is requested. Discuss which piping systems these welds belong to. |
| | : b. Clarify whether these welds were inspected during fabrications. Provide the date of fabrication and pre-service (PSI) inspection, and inspection methods. Discuss any fabrication flaws detected and repaired. |
| | : c. Clarify whether these welds have ever been inspected in service in accordance with the requirements of the ASME Code, Section XI, since commercial operation. If yes, discuss the inspection results. If no, provide technical justification for the assurance of the integrity of these welds until the next scheduled inspection. |
| | : d. NRC Information Notice (IN) 2011-04, Contaminants and Stagnant Conditions Affecting Stress Corrosion Cracking in Stainless Steel Piping in Pressurized water Reactors, discusses potential stress corrosion cracking (SCC) in stainless steel piping. |
| | : 1. Provide operating pressure and temperature that these welds are exposed to. |
| | : 2. Discuss the potential for SCC in these welds. |
| | Alan Wang Project Manager (River Bend Station) |
| | Nuclear Regulatory Commission Division of Operating Reactor Licensing Alan.Wang@NRC.gov Tel: (301) 415-1445 Fax: (301) 415-1222}} |
Letter Sequence RAI |
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MONTHYEARRBG-47166, Requests for Relief RBS-ISI-016 & RBS-ISI-017, Requests for Relief from ASME Code Section Xl Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps & Valves2011-08-0303 August 2011 Requests for Relief RBS-ISI-016 & RBS-ISI-017, Requests for Relief from ASME Code Section Xl Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps & Valves Project stage: Request ML1127905082011-10-0606 October 2011 Acceptance Review Email, Relief Requests RBS-ISI-016 for Pressure Retaining Welds in Pumps and Valves and RBS-ISI-017 for Pressure Retaining Welds in Control Rod Housings Project stage: Acceptance Review ML1203202142012-02-0101 February 2012 Email, Request for Additional Information, Relief Requests RBS-ISI-016 for Pressure Retaining Welds in Pumps and Valves and RBS-ISI-017 for Pressure Retaining Welds in Control Rod Housings Project stage: RAI RBG-47233, Supplement to Request for Relief RBS-ISI-016 and RBS-ISI-017 Requests for Relief from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Val2012-04-16016 April 2012 Supplement to Request for Relief RBS-ISI-016 and RBS-ISI-017 Requests for Relief from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Valv Project stage: Request RBG-47272, Supplement to RBS-ISI-016 and RBS-ISI-017, Requests for Relief from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Valves2012-08-0202 August 2012 Supplement to RBS-ISI-016 and RBS-ISI-017, Requests for Relief from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Valves Project stage: Request ML12235A3082012-08-31031 August 2012 Relief Requests RBS-ISI-016 and RBS-ISI-017 Proposed Alternative to 10 CFR 50.55A Examination Requirements for Reactor Pressure Vessel Weld Inspections Project stage: Other 2012-02-01
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Category:E-Mail
MONTHYEARML24137A2702024-05-16016 May 2024 NRR E-mail Capture - Entergy Fleet - Acceptance Review of License Amendment Request to Remove Obsolete License Conditions from Operating Licenses for GGNS, RBS, and WF3 (L-2024-LLA-0062) ML24088A0092024-03-27027 March 2024 NRR E-mail Capture - Entergy Fleet - Final Request for Confirmation of Information (RCI) Re Alternative Request EN-RR-22-001 Concerning ASME Code Case N-752 (L-2022-LLR-0054) ML23348A1222023-12-14014 December 2023 NRR E-mail Capture - Grand Gulf, River Bend, and Waterford, Unit 3 - 2nd Round of Official RAIs for RR EN-RR-22-001, Use ASME Code Case N-752, Risk Informed Categorization for Class 2 and 3 Systems ML24031A2772023-11-27027 November 2023 (05000458/2024040) IP 95001 Regarding EA-23-071 Initial Request for Information ML24102A2442023-09-22022 September 2023 NRR E-mail Capture - Audit Question TSTF-505 and 50.69 ML23240A3412023-08-28028 August 2023 NRR E-mail Capture - ANO-2, Grand Gulf, and River Bend - Acceptance Review of LAR Revising TSs to Adopt TSTF-205, Revision of Channel Calibration, Channel Functional Test, and Related Definitions ML23207A0762023-07-14014 July 2023 EN 56557 - Update to Part 21 Report Re Potential Defect with Trane External Auto/Stop Emergency Stop Relay Card Pn: XI2650728-06 ML23159A0052023-06-0505 June 2023 56557-EN 56557 - Paragon - Redlined ML23116A1462023-04-26026 April 2023 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Final RAI for Request to Update ASME Code Relief Request Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020, and RBS-ISI-019) ML23103A4662023-04-0404 April 2023 NRR E-mail Capture - River Bend Station, Unit 1 - Acceptance Review for LAR to Adopt TSTF-505, Rev. 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b ML23103A4672023-04-0404 April 2023 NRR E-mail Capture - River Bend Station, Unit 1 - Acceptance Review for LAR to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors ML23089A0702023-03-29029 March 2023 TSTF-505 Email Providing Reference for 0.3g HCLPF Value ML23072A3672023-03-0909 March 2023 NRR E-mail Capture - Entergy Fleet - Acceptance Review of Quality Assurance Program Manual Reduction in Commitment ML23009B6912023-01-0909 January 2023 NRR E-mail Capture - Grand Gulf, Unit 1 and River, Unit 1 - Acceptance of Requested Licensing Action Request to Update ASME Code RR SE with NRC-Approved Revision of BWRVIP Guidelines ML22206A0152022-07-21021 July 2022 NRR E-mail Capture - Entergy (Grand Gulf, River Bend, and Waterford-3) - Acceptance Review of the RR EN-RR-22-001, Case N-752, Risk-informed Cat & Treatment for Repair/Replacement Activities in Class 2 & 3 Systems ML22173A0372022-06-21021 June 2022 NRR E-mail Capture - Entergy (Grand Gulf and River Bend) - Acceptance Review of the License Amendment Request to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling ML21356A5882021-12-22022 December 2021 NRR E-mail Capture - Acceptance for Review: River Bend Station 1 - IST Program Relief Request for PIV Testing Frequency ML21312A4792021-11-0505 November 2021 Email: NRC Staff Preliminary Questions Regarding X Energy LLC Xe-100 Topical Report: Risk-Informed Performance-Based Licensing Basis Development ML21308A5602021-11-0404 November 2021 NRR E-mail Capture - Arkansas Nuclear One, Units 1 and 2, Grand Gulf, River Bend, and Waterford, Unit 3 - Acceptance Review of LAR to Adopt TSTF-554, Revise Reactor Coolant Leakage Requirements ML21292A0112021-10-18018 October 2021 NRR E-mail Capture - ANO, 1 and 2, Grand Gulf, River Bend, Waterford, 3 - Acceptance Review of LAR to Adopt TSTF-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position ML21218A0412021-07-19019 July 2021 NRR E-mail Capture - River Bend Unit 1 - Acceptance of License Amendment Request to Add License Condition Concerning Receipt, Possession ML21174A0342021-06-22022 June 2021 NRR E-mail Capture - Entergy Fleet (ANO, Ggulf, Rbend, & Waterford) - Acceptance Review for Relief Request to Use a Provision of a Later Edition of the ASME Code, Section XI for Periodic System Pressure Tests Exemptions ML21109A2142021-04-19019 April 2021 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Rev. Est Hours for Review of Relief Request (RR) - ASME Code RR Safety Eval with NRC-Approved Rev of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML21099A0312021-03-30030 March 2021 Email 3-30-2021 - Request for Information_ RBS EP Exercise Inspection (Week of 5_10_2021) ML21109A2132021-03-23023 March 2021 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Relief Request (RR) Associated with ASME Code RR Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML21068A4092021-03-0909 March 2021 NRR E-mail Capture - Entergy Fleet (GGNS and RBS) -Approval of TSTF-501 LAR, Relocate Sored Fuel Oil and Lube Oil Volume Values to Licensee Control ML21022A1692021-01-22022 January 2021 NRR E-mail Capture - Entergy Fleet (ANO, Grand Gulf, River Bend, and Waterford) - Acceptance Review for RR EN-20-RR-003, Proposed Alternative to Use ASME Code Case N-711-2 ML21015A3452021-01-14014 January 2021 NRR E-mail Capture - Grand Gulf and River Bend - Revised Estimated Hours for Relief Request Associated with ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML20337A1382020-11-23023 November 2020 Acceptance of License Amendment Request to Adopt GL 86-10 Standard License Condition for Fire Protection ML20329A1442020-11-20020 November 2020 Terrapower QAPD Preliminary Questions Email ML20317A2922020-10-15015 October 2020 Entergy Operations, Inc. (River Bend Station, Unit 1) - Acceptance Review of License Amendment Request to Revise Technical Specifications to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements ML20289A3542020-10-14014 October 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of TSTF-563 LAR, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program ML20255A1892020-09-0909 September 2020 Email 09Sept2020 - RFI for RBS EP Exercise Inspection ML20260H4422020-09-0808 September 2020 NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Official RAIs for RR Associated with Updating ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) ML20169A3782020-06-16016 June 2020 Email-20-0196-NRC Riv Response V. 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[Table view] Category:Request for Additional Information (RAI)
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NON-PROPRIETARY Version ML18250A3102018-08-0101 August 2018 NRR E-mail Capture - Draft RAI - RBS EP EAL Scheme Change LAR (L-2018-LLA-0130) ML18151A0822018-05-30030 May 2018 Summary of a Telephone Conference Call Held on May 21, 2018, Between NRC and Entergy Regarding the Need for Additional Information to Support the River Bend Station License Renewal Application RBG-47861, Response to License Renewal Application NRC Request for Additional Information Sets 14,15 and Operating Experience Review Clarification2018-05-29029 May 2018 Response to License Renewal Application NRC Request for Additional Information Sets 14,15 and Operating Experience Review Clarification ML18149A2882018-05-24024 May 2018 NRR E-mail Capture - River Bend Station Request for Additional Information - Reactor Core Isolation Cooling Piping Modification (L-2018-LLA-0029) ML18141A3172018-05-21021 May 2018 OE Draft RAI 3-0-5 Rogers ML18141A4882018-05-21021 May 2018 Draft Response (RAI 3.6.2.2.2.2-1a) from LRA Review Revised After the May 17, 2018 Call ML18131A2412018-05-11011 May 2018 RBS 012 Item 158a Response (RAI 3.2.2.3.2-1a) Revised - Received on 05/10/2018 ML18124A0092018-05-0303 May 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 15 ML18122A2312018-05-0202 May 2018 Draft Response to NRC Request for Additional Information (RAI) B.1.40-5 Service Water Integrity Generated from Staffs Review on the River Bend Station, Unit 1 License Renewal Application ML18122A1262018-05-0202 May 2018 RAI B.1.17-1 Revised - w- header-footer-watermark ML18121A3022018-05-0101 May 2018 Draft Response to NRC Request for Additional Information (RAI) 4.6-2a Generated from Staff'S Review on the River Bend License Renewal Application ML18121A0292018-04-30030 April 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 14 ML18115A1632018-04-25025 April 2018 Draft Response on RBS LRA RAI B.1.21-2 Flow Accelerated Corrosion ML18113A3322018-04-23023 April 2018 035 RB Buried Pipe 3rd Round RAI - Allik Holston ML18103A0152018-04-12012 April 2018 NRR E-mail Capture - Summary of Public Telephone Conference Call Held on March 27, 2018, Between the U.S. Nuclear Regulatory Commission and Entergy and Final Requests for Additional Information for the Safety Review of the River Bend Statio ML18073A0912018-03-14014 March 2018 NRC and Energy Public Meeting on Fatigue Analysis Related to River Bend License Renewal ML18068A1872018-03-0909 March 2018 Revision of Final Request for Additional Information (RAI 2.3.3.17-2) for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 11 RBG-47834, Response to License Renewal Application NRC Request for Additional Information (RAI) Set 92018-03-0808 March 2018 Response to License Renewal Application NRC Request for Additional Information (RAI) Set 9 ML18065A2132018-03-0606 March 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 12 ML18060A1532018-03-0101 March 2018 NRR E-mail Capture - River Bend Station: Request for Additional Information Concerning New Technical Specification for Control Building Air Conditioning (L-2017-LLA-0291) ML18058A0572018-02-23023 February 2018 Enclosurequest for Additional Information (Letter to J. Giddens Request for Additional Information Regarding Entergy Operations, Inc.'S Decommissioning Funding Plan Update) ML18043A3512018-02-12012 February 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 11 ML18043A0082018-02-0808 February 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 10 ML18038B4702018-02-0707 February 2018 NRR E-mail Capture - Fyi_River Bend Station RAIs Set 9 ML18022A9412018-01-22022 January 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 8 ML18011A0462018-01-10010 January 2018 Notification of Cyber Security Inspection (NRC Inspection Report 05000458/2018406) and Request for Information IR 05000458/20184062018-01-10010 January 2018 River Bend Station - Notification of Cyber Security Inspection (NRC Inspection Report 05000458/2018406) and Request for Information ML18009A9092018-01-0909 January 2018 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 7 ML17361A3962017-12-27027 December 2017 Final Requests for Additional Information for the Safety Review of the River Bend Station License Renewal Application (CAC No. MF9757) - Set 6 2024-04-11
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From: Wang, Alan Sent: Wednesday, February 01, 2012 10:54 AM To: 'BURMEISTER, BARRY M'; Joseph Clark (JCLARK@entergy.com)
Cc: Lent, Susan; Burkhardt, Janet
Subject:
River Bend Station Request for Additional Information Regarding RR RBS-ISI-016 and RBS-ISI-017(ME6844 and ME6845)
Joey and Barry, By letter dated August 3, 2011 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML11221A164), Entergy Operations, Inc (Entergy, the licensee) submitted Entergy Letter RBG-47166, Requests for Relief [RR]from ASME Code Section XI Inservice Inspection Requirements for Pressure Retaining Welds in Control Rod Housings and Pressure Retaining Welds in Pumps and Valves.
The NRC staff has determined that the following additional information is needed to complete our review of these RR. This request for additional information (RAI) was discussed with Mr.
Barry Burmeister of your staff on January 31, 2012, and it was agreed that a response would be provided within 60 days from the issuance of this email. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1445 or via e-mail at Alan.Wang@nrc.gov.
The following RAIs are related to your letter dated August 3, 2011:
- 1) General Question for RRs RBS-ISI-016 and RBS-ISI-017 In the licensees submittal dated August 3, 2011, it was noted in the cover letter that RR RBS-ISI-016 and RBS ISI-17 were submitted beyond the one year time frame specified under 10 CFR 50.55a(g)(5)(iv) and that the omission had been address in the Entergys Correction Action Process. Provide an action number, if one exists and date of the action.
What was the reason for the lateness in submitting RRs RBS-ISI-016 and RBS-ISI-017 to the NRC?
- 2) REQUEST FOR RELEIF RBS-ISI-016 ASME CODE, SECTION XI, TABLE IWB-2500-1, EXAMINATION CATEGORY B-O, ITEM 14.10 WELDS IN CONTROL ROD DRIVE (CRD)
HOUSINGS
- a. Since there has been an improvement in visual examinations over the past few years by remote camera, has the licensee considered visual examinations using a remote camera for future visual examinations of the control rod drive (CRD) housings?
- b. In keeping of As Low As Reasonable Achievable (ALARA), what would have been the estimated dosage rate if the ASME Code examinations were performed in second 10-year ISI interval?
- c. In the staffs evaluation of RR R-004 contained in NUREG-0989, Safety Evaluation Report Related to the Operation of River Ben Station, Supplement 3, Appendix L, dated May 1984
(ADAMS Accession Number ML09138041), it was stated that: In the event that the CRD Housings are disassembled for inservice repair or maintenance, so that the subject welds and bolting are accessible, the staff will require that the presevice be performed at that time. Where the CRD housings ever disassembled for inservice repair or maintenance and the preservice examination performed? What were the results, if the examinations were performed?
- d. Was relief given by the NRC for the ASME Code-required examinations of the CRD Housings in the first 10-year ISI interval? Provide the date of the NRC SE if relief was given.
- e. Will the licensee commit to perform the required ASME Code examinations in the third 10-year ISI interval if the CRD Housings are disassembled for inservice repair or maintenance, and if the subject welds and bolting are accessible.
- 3) REQUEST FOR RELEIF RBS-ISI-017 ASME Code CLASS 2 C-G, PRESSURE RETAINING WELDS IN PUMPS AND VALVES
- a. Provide materials specifications for the welds and associated components (e.g.,
pumps and valves) for which relief is requested. Discuss which piping systems these welds belong to.
- b. Clarify whether these welds were inspected during fabrications. Provide the date of fabrication and pre-service (PSI) inspection, and inspection methods. Discuss any fabrication flaws detected and repaired.
- c. Clarify whether these welds have ever been inspected in service in accordance with the requirements of the ASME Code,Section XI, since commercial operation. If yes, discuss the inspection results. If no, provide technical justification for the assurance of the integrity of these welds until the next scheduled inspection.
- d. NRC Information Notice (IN) 2011-04, Contaminants and Stagnant Conditions Affecting Stress Corrosion Cracking in Stainless Steel Piping in Pressurized water Reactors, discusses potential stress corrosion cracking (SCC) in stainless steel piping.
- 1. Provide operating pressure and temperature that these welds are exposed to.
- 2. Discuss the potential for SCC in these welds.
Alan Wang Project Manager (River Bend Station)
Nuclear Regulatory Commission Division of Operating Reactor Licensing Alan.Wang@NRC.gov Tel: (301) 415-1445 Fax: (301) 415-1222