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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, ... further results|Request]]
- Acceptance...
- Supplement, Supplement, Supplement, Supplement
Results
Other: ML21196A076, ML22045A053, ML22111A314, ML22193A254, ML22349A148, RA-21-0307, Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 1, RA-22-0023, Subsequent License Renewal Application - Response to NRC Requests for Confirmation of Information - Set 3, RA-22-0129, Subsequent License Renewal Application, Response to ONS SLRA 2nd Round RAI B4.1-3, RA-22-0137, Subsequent License Renewal Application Response to ONS SLRA Second Round RAI 4.6.1-1a, RA-22-0145, Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - RAI 3.5.2.2.2.6-L, RA-22-0158, Subsequent License Renewal Application - Response to ONS SLRA Second Round RAI B2.1.9-2a, RA-22-0160, Subsequent License Renewal Application: Responses to ONS SLRA - Second Round RAIs - Trp 76 (Irradiation Structural) - FE 3.5.2.2.2.6, RA-22-0192, Subsequent License Renewal Application Response to ONS SLRA Second Round RAI B2.1.7-4a
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MONTHYEARRA-21-0132, Application for Subsequent Renewed Operating Licenses. Part 7 of 82021-06-0707 June 2021 Application for Subsequent Renewed Operating Licenses. Part 7 of 8 Project stage: Request ML21158A1932021-06-0707 June 2021 Application for Subsequent Renewed Operating Licenses Project stage: Request ML21158A1952021-06-0707 June 2021 Application for Subsequent Renewed Operating Licenses. Part 2 of 8 Project stage: Request ML21196A0762021-07-23023 July 2021 Aging Management Audit Plan Regarding the Subsequent License Renewal Application Review Project stage: Other ML21271A5862021-09-21021 September 2021, 22 September 2021, 28 September 2021 SLRA - RAI B2.1.27-1 Project stage: Request ML21270A2492021-09-27027 September 2021 Beyond Nuclear and Sierra Club Hearing Request Project stage: Request ML21295A7182021-10-22022 October 2021 Applicant'S Answer Opposing Request for Hearing, Petition to Intervene, and Petition for Waiver Submitted by Beyond Nuclear and Sierra Club Project stage: Request ML21295A7172021-10-22022 October 2021 Notices of Appearance for Tracey M. Leroy, Paul M. Bessette, and Ryan K. Lighty on Behalf of Duke Energy Carolinas, LLC Project stage: Request RA-21-0281, Subsequent License Renewal Application, Response to NRC Request for Additional Information B2.1.27-12021-10-22022 October 2021 Subsequent License Renewal Application, Response to NRC Request for Additional Information B2.1.27-1 Project stage: Response to RAI RA-21-0249, Subsequent License Renewal Application Supplement 12021-10-28028 October 2021 Subsequent License Renewal Application Supplement 1 Project stage: Supplement ML21313A2342021-11-0404 November 2021 Attachment: Oconee SLRA - Final Requests for Confirmation of Information - Set 1 Project stage: Request ML21313A2322021-11-0404 November 2021 SLRA - Requests for Confirmation of Information - Set 1 Project stage: Request RA-21-0288, Subsequent License Renewal Application Supplement 22021-11-11011 November 2021 Subsequent License Renewal Application Supplement 2 Project stage: Supplement ML21327A2772021-11-23023 November 2021 SLRA - Requests for Additional Information (Set 1) + 2nd Round RAI B2.1.27-1a Project stage: Request RA-21-0307, Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 12021-12-0202 December 2021 Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 1 Project stage: Other RA-21-0316, Subsequent License Renewal Application Supplement 32021-12-15015 December 2021 Subsequent License Renewal Application Supplement 3 Project stage: Supplement RA-21-0325, Response to NRC Requests for Confirmation of Information - Set 22021-12-17017 December 2021 Response to NRC Requests for Confirmation of Information - Set 2 Project stage: Request RA-21-0332, Subsequent License Renewal Application Responses to NRC Request for Additional Information Set 1 and Second Round Request for Additional Information B2.1.27-1a2022-01-0707 January 2022 Subsequent License Renewal Application Responses to NRC Request for Additional Information Set 1 and Second Round Request for Additional Information B2.1.27-1a Project stage: Response to RAI ML22007A0152022-01-0707 January 2022 Subsequent License Renewal Application, Appendix E Responses to Requests for Additional Information (Rai), and Request for Confirmation of Information Project stage: Response to RAI ML22024A0052022-01-19019 January 2022 Breakout Questions - Scoping and Screening - Reactor Coolant System Project stage: Request ML22024A0592022-01-19019 January 2022 ONS - Electrical On-Site and OE Audit (Virtual) - Continued Project stage: Request ML22024A0032022-01-19019 January 2022 Breakout Questions - Fire Protection Scoping and Screening Project stage: Request ML22024A0042022-01-19019 January 2022 Breakout Questions - Scoping - Letdown Cooler Project stage: Request ML22024A0122022-01-19019 January 2022 Breakout Questions - Trp 14 - Buried Piping Project stage: Request ML22024A0212022-01-19019 January 2022 Breakout Questions - Trp 26 - Fire Protection Project stage: Request ML22024A0202022-01-19019 January 2022 Breakout Questions - Trp 21 - Closed Treated Water System Project stage: Request ML22024A0182022-01-19019 January 2022 Breakout Questions - Trp 19 - Steam Generators Project stage: Request ML22024A0162022-01-19019 January 2022 Breakout Questions - Trp 17 - Flow-Accelerated Corrosion Project stage: Request ML22024A0362022-01-19019 January 2022 Breakout Questions - Trp 60 - Fatigue Monitoring Project stage: Request ML22024A0402022-01-19019 January 2022 Breakout Questions - Trp 85 - No Aging Effects Project stage: Request ML22024A0422022-01-19019 January 2022 Breakout Questions - Trp 141 - Identification of TLAAs Project stage: Request ML22024A0462022-01-19019 January 2022 Breakout Questions - Trp 143.2 - Non-Class 1 Fatigue Analyses Project stage: Request ML22024A0482022-01-19019 January 2022 Breakout Questions - Trp 143.3 - EAF - Min Project stage: Request ML22024A0492022-01-19019 January 2022 Breakout Questions - Trp 143.9 - Cycle Projections Project stage: Request ML22024A0562022-01-19019 January 2022 Breakout Questions - Trps 142.1 and 149.13 - Fluence Project stage: Request ML22024A0022022-01-19019 January 2022, 20 January 2022, 21 January 2022 SLRA - Audit Report - Audit Questions Transmitted to Duke Energy Project stage: Request ML22024A0062022-01-20020 January 2022 Breakout Questions - Structural Scoping and Screening Project stage: Request ML22024A0082022-01-20020 January 2022 Breakout Questions - Trp 2 - Water Chemistry Project stage: Request ML22024A0092022-01-20020 January 2022 Breakout Questions - Trp 3 - RPV Closure Head Studs Project stage: Request ML22024A0102022-01-20020 January 2022 Breakout Questions - Trp 10 - Boric Acid Corrosion Project stage: Request ML22024A0152022-01-20020 January 2022 Breakout Questions - Trp 17 - FAC (Continued) Project stage: Request ML22024A0332022-01-20020 January 2022 Breakout Questions - Trp 45 - Masonry Walls Project stage: Request ML22024A0342022-01-20020 January 2022 Breakout Questions - Trp 46 - Structures Monitoring Project stage: Request ML22024A0352022-01-20020 January 2022 Breakout Questions - Trp 47 - Water Control Structures Project stage: Request ML22024A0372022-01-20020 January 2022 Breakout Questions - Trp 74 - Concrete Project stage: Request ML22024A0392022-01-20020 January 2022 Breakout Questions - Trp 77 - Corrosion Structural Project stage: Request ML22024A0412022-01-20020 January 2022 Breakout Questions - Trp 140 - Secondary Shield Wall Tendon Surveillance Project stage: Request ML22024A0432022-01-20020 January 2022 Breakout Questions - Trp 142.03 - PTS Project stage: Request ML22024A0512022-01-20020 January 2022 Breakout Questions - Trp 149.4 - LBB Project stage: Request ML22024A0552022-01-20020 January 2022 Breakout Questions - Trps 62 and 145 - Tendon Prestress Project stage: Request 2021-12-02
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Category:Audit Report
MONTHYEARML23219A1402023-10-10010 October 2023 Audit Report Proposed Alternative to Use ASME Code Case N-752, Risk Informed Categorization and Treatment for Repair/Replacement Activities in Class 2 and 3 Systems XI, Division 1 ML22193A2542022-08-0505 August 2022 SLRA - Audit Report ML22046A0882022-03-11011 March 2022 Audit Summary Report in Support of the License Amendment Request for One-Time Note to Technical Specification 3.7.7, Low Pressure Service Water (LPSW) System ML22045A0532022-02-14014 February 2022 SLRA - Audit Report ML22024A0522022-01-21021 January 2022 Breakout Questions - Trp 149.11 - Rvi Ductility ML22024A0532022-01-21021 January 2022 Breakout Questions - TRP149.12, 149.2, 149.3 ML22024A0382022-01-21021 January 2022 Breakout Questions - Trp 76 - Irradiated Conc Steel ML22024A0172022-01-20020 January 2022 Breakout Questions - Trp 18 - Bolting Integrity ML22024A0222022-01-20020 January 2022 Breakout Questions - Trp 27 - Fire Water System (Continued) ML22024A0432022-01-20020 January 2022 Breakout Questions - Trp 142.03 - PTS ML22024A0412022-01-20020 January 2022 Breakout Questions - Trp 140 - Secondary Shield Wall Tendon Surveillance ML22024A0392022-01-20020 January 2022 Breakout Questions - Trp 77 - Corrosion Structural ML22024A0372022-01-20020 January 2022 Breakout Questions - Trp 74 - Concrete ML22024A0352022-01-20020 January 2022 Breakout Questions - Trp 47 - Water Control Structures ML22024A0342022-01-20020 January 2022 Breakout Questions - Trp 46 - Structures Monitoring ML22024A0332022-01-20020 January 2022 Breakout Questions - Trp 45 - Masonry Walls ML22024A0322022-01-20020 January 2022 Breakout Questions - Trp 44 - Appendix J ML22024A0302022-01-20020 January 2022 Breakout Questions - Trp 42 - ASME XI, Subsection Iwl ML22024A0292022-01-20020 January 2022 Breakout Questions - Trp 41 - IWE ML22024A0232022-01-20020 January 2022 Breakout Questions - Trp 27 - Fire Water System ML22024A0152022-01-20020 January 2022 Breakout Questions - Trp 17 - FAC (Continued) ML22024A0512022-01-20020 January 2022 Breakout Questions - Trp 149.4 - LBB ML22024A0552022-01-20020 January 2022 Breakout Questions - Trps 62 and 145 - Tendon Prestress ML22024A0142022-01-20020 January 2022 Breakout Questions - Trp 16 - PWR Internals ML22024A0572022-01-20020 January 2022 Breakout Questions - Trps 149.5 and 23 - Crane and Inspection of Load Handling ML22024A0102022-01-20020 January 2022 Breakout Questions - Trp 10 - Boric Acid Corrosion ML22024A0092022-01-20020 January 2022 Breakout Questions - Trp 3 - RPV Closure Head Studs ML22024A0082022-01-20020 January 2022 Breakout Questions - Trp 2 - Water Chemistry ML22024A0062022-01-20020 January 2022 Breakout Questions - Structural Scoping and Screening ML22024A0362022-01-19019 January 2022 Breakout Questions - Trp 60 - Fatigue Monitoring ML22024A0162022-01-19019 January 2022 Breakout Questions - Trp 17 - Flow-Accelerated Corrosion ML22024A0032022-01-19019 January 2022 Breakout Questions - Fire Protection Scoping and Screening ML22024A0042022-01-19019 January 2022 Breakout Questions - Scoping - Letdown Cooler ML22024A0052022-01-19019 January 2022 Breakout Questions - Scoping and Screening - Reactor Coolant System ML22024A0212022-01-19019 January 2022 Breakout Questions - Trp 26 - Fire Protection ML22024A0122022-01-19019 January 2022 Breakout Questions - Trp 14 - Buried Piping ML22024A0202022-01-19019 January 2022 Breakout Questions - Trp 21 - Closed Treated Water System ML22024A0182022-01-19019 January 2022 Breakout Questions - Trp 19 - Steam Generators ML22024A0402022-01-19019 January 2022 Breakout Questions - Trp 85 - No Aging Effects ML22024A0422022-01-19019 January 2022 Breakout Questions - Trp 141 - Identification of TLAAs ML22024A0462022-01-19019 January 2022 Breakout Questions - Trp 143.2 - Non-Class 1 Fatigue Analyses ML22024A0482022-01-19019 January 2022 Breakout Questions - Trp 143.3 - EAF - Min ML22024A0492022-01-19019 January 2022 Breakout Questions - Trp 143.9 - Cycle Projections ML22024A0562022-01-19019 January 2022 Breakout Questions - Trps 142.1 and 149.13 - Fluence ML22024A0592022-01-19019 January 2022 ONS - Electrical On-Site and OE Audit (Virtual) - Continued ML21323A1132021-11-23023 November 2021 Subsequent License Renewal Environmental Review Requests for Additional and Subsequent Information - Letter ML20266G2192020-11-0303 November 2020 Regulatory Audit Report Regarding License Amendment Request to Revise the Licensing Basis for High Energy Line Breaks Outside of the Containment Building ML18197A2012018-07-25025 July 2018 Staff Review of Spent Fuel Pool Evaluation Associated with Reevaluated Seismic Hazard Implementation Near- Task Force Recommendation 2.1: Seismic ML18117A2702018-05-0101 May 2018 Summary of Regulatory Audit in Support of License Amendment Request No. 2017-03 ML16067A2912016-03-21021 March 2016 Report of Regulatory Audit Regarding License Amendment Request for Alternate Fission Gas Gap Release Fractions (CAC Nos. MF6480 - MF6486) 2023-10-10
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Text
Oconee SLRA: Breakout Questions SLRA Section B2.1.9, Bolting Integrity AMP: B2.1.9 l TRP: 18 Question SLRA SLRA Background / Issue Discussion Question / Request Number Section Page (As applicable/needed) 1 B2.1.9 B - 86 SLRA Section B2.1.9, Bolting Integrity, Program
Description:
states that the AMP is an existing condition
- Clarify/confirm that the bolting monitoring program which manages loss of integrity AMP is an existing preload, cracking, and loss of material related program, except for managing to closure bolting on pressure-retaining the sampling and direct components. inspection for piping systems that are difficult to detect However, based on review of documents on leakage.
the portal, it is not clear if the existing program
- Explain/discuss how already manages leakage for systems where management of leakage for leakage is difficult to detect, or if leakage for systems where leakage is these systems will be managed through difficult to detect is being updates to an existing procedure. Based on addressed as an the documentation on the portal, it appears a enhancement or via a new procedure will be developed. completely new.
2 B2.1.9 B - 88 The GALL-SLR Report AMP XI.M18 Preventive Actions:
recommends that selection of bolting material
- Clarify how the enhancement and the use of lubricants and sealants is in will be consistent with the accordance with the guidelines of EPRI GALL-SLR Report AMP Reports 1015336 and 1015337 and the recommendation to ensure additional recommendations of NUREG-1339 that selection of bolting to prevent or mitigate stress corrosion material and the use of cracking (SCC). lubricants and sealants are in accordance with the provided
- SLRA Enhancement No. 1 seeks to guidance and not just a revise applicable procedure and reference.
specifications to include reference to EPRI Report 1015336, EPRI Report 1015337,
- Clarify how the program will and NUREG-1339, as appropriate. be consistent with the GALL-SLR report AMP However, it is not clear how just including recommendation to ensure the references will ensure that adequate that molybdenum disulfide preventive actions are implemented within
Oconee SLRA: Breakout Questions SLRA Section B2.1.9, Bolting Integrity AMP: B2.1.9 l TRP: 18 the procedures. The staff notes that the (MoS2) is not used as a intent of the recommended preventive lubricant.
actions in GALL-SLR Report XI.M18 is to implement within the procedures the
- Clarify where the existing specified preventive or mitigative actions program includes preventive from these guidelines. measures to ensure that bolting material with an actual
- The GALL-SLR Report emphasizes the measured yield strength of industry guidance recommendation to less than 150 ksi is being restrict the use of molybdenum disulfide used.
(MoS2) as a lubricant since it has been shown to be a potential contributor to SCC.
However, no restriction was identified in the program for its use. The staff noted that the AMP recommends the use of Loctite N-5000 or equivalent for lubrication, but no restriction on MoS2 was identified. The staff also noted some procedure markup addressing this, but no enhancement in the SLRA has been provided.
- The GALL-SLR Report recommends including preventive actions which limits the use of bolting material to those with an actual measured yield strength less than 150 ksi.
However, it is not clear whether the AMP already considers this as a preventive action or if an exception was made since the staff couldnt verify it within the provided references.
3 B2.1.9 B - 86
- The GALL-SLR Report AMP XI.M18 Detection of Aging Effects:
recommends monitoring for crack
Oconee SLRA: Breakout Questions SLRA Section B2.1.9, Bolting Integrity AMP: B2.1.9 l TRP: 18 initiation, loss of preload, or loss of
- Clarify how/where the existing material as bolting degradation that may program ensures that result in leakage from the mating surfaces degradation of pressure or joint connections of pressure boundary boundary closure bolting due components. to crack initiation, loss of preload, or loss of material However, it is not clear where Oconee that may result in leakage implements these inspection criteria in from the mating surfaces or their existing procedures. joint connections of pressure boundary components is
- The GALL-SLR Report AMP recommends being detected during the SLRA to state how the aging effects inspections.
associated with closure bolting of components that are not normally
- Clarify how/where the existing pressurized will be managed. program ensures that closure bolting of components that However, it is not clear where this is are not normally pressurized addressed in the SLRA and/or how will be managed (e.g.,
Oconee will address this concern. checking the torque to the extent that the closure bolting is not loose) during the inspections.
4 B2.1.9 B - 88 The GALL-SLR Report AMP XI.M18 Monitoring and Trending:
recommends the inspections results be
- Clarify how the GALL-SLR evaluated and, when practical, degradations report AMP recommendation be projected until the next scheduled related to projection of inspection to ensure that components inspection results to the next intended function will be maintained inspection is addressed by throughout the SPEO. the existing AMP or how it will be addressed.
The staff noted AD-MN-ALL-0006 generally addresses this within the procedure for general leakages. However, it is not clear how Oconee addresses this for closure bolting in locations that preclude detection of joint
Oconee SLRA: Breakout Questions SLRA Section B2.1.9, Bolting Integrity AMP: B2.1.9 l TRP: 18 leakage, or where the piping systems contain air or gas for which leakage is difficult to detect.
5 B2.1.9 B - 88 The GALL-SLR Report AMP XI.M18, Corrective Actions:
Corrective Action program element
- Clarify if the intent of this recommends, for sampling-based inspections, enhancement is to implement to conduct additional inspections if one of the additional inspections for inspections does not meet the acceptance each inspection that did not criteria. meet the acceptance criteria or a more general approach
- SLRA AMP Enhancement No. 5 seems to of once when any sample-imply that additional inspections will be based inspection as a whole performed when sample-based does not meet the acceptance inspections, in general, not meet the criteria. Enhancement may acceptance criteria. Therefore, it is not need to be clarified, as clear if the procedure will implement this necessary.
additional inspection for each inspection that did not meet the acceptance criteria.
- Clarify if inspections of similar bolting (enhancement It is noted that the proposed draft No. 5) is intended to be procedure (Section 8.1) states that for bolting in other units having each unsat inspection result the same material, However, it is not stated as clearly in the environment, and aging effect SLRA enhancement that is being combination.
evaluated.
The GALL-SLR Report AMP also seeks to ensure that, at multi-unit sites, the additional inspections include inspections at all of the units with the same material, environment, and aging effect combination.
- SLRA Enhancement No. 5 will enhance the AMP to ensure that additional inspections of similar bolting will be performed at all three units
Oconee SLRA: Breakout Questions SLRA Section B2.1.9, Bolting Integrity AMP: B2.1.9 l TRP: 18 6 A2.9 A-10 The FSAR Supplement states, in part, that FSAR Supplement:
closure bolting on pressure-retaining
- Clarify why testing by components and mechanical bolting that are alternate means (e.g.,
submerged or closure bolting on pressure- inspected or tested) was not retaining components located in piping included as part of the FSAR systems that contain air or gas is inspected by supplement summary alternate means, However, it is not clear description.
why the testing by alternate means was omitted. It is noted that enhancement No. 4 includes the use of other testing methods (e.g., soap bubble testing) to detect cracking for this system.