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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 55328 | 24 June 2021 04:00:00 | 10 CFR 50.55(e) | 10 Cfr 50.55(E) Report Regarding Electrical Construction and Measuring and Test Equipment Control | The following is a synopsis of information received via E-mail: The individual informing the Commission is Michael J. Yox, 7825 River Road, Waynesboro, GA 30830. The activities which fail to comply include construction processes including, installation of some electrical and mechanical commodities, and control of measuring and test equipment at the Vogtle 3 and 4 construction project. The primary construction firm for the Vogtle 3 and 4 construction project is Bechtel Power Corporation (Bechtel). This report is being provided based on construction nonconformances including, installation of some electrical and mechanical commodities, and control of measuring and test equipment for Vogtle Units 3 and 4. The nonconformances affect cable separation and other raceway structural elements. The extent of condition for the measuring and test equipment issue is under evaluation and may impact additional safety-related work. The identified construction nonconformances are a small fraction of the overall structures and components. There is no specifically identified substantial safety hazard (SSH) for these nonconformances. The nonconformances identified affect some safety-related components and based on this it was conservatively judged that the issues could be related to an SSH. These issues were discovered while the facility is under construction. The identified conditions will be corrected prior to completion of the facility. The evaluation for this report was completed on June 24, 2021. As stated above, there are no specifically identified basic components that have been identified to contain a defect for Vogtle Units 3 and 4. The nonconformances identified affect some safety-related components and based on this it was conservatively judged that these conditions involve a failure to comply that could be related to an SSH. The corrective action which has been, is being, or will be taken include: Comprehensive extent-of-condition reviews and correction of identified conditions are being conducted. The actions to identify and resolve the nonconforming conditions are in process and will be completed in accordance with the site corrective action program. Bechtel, and other subcontractors as needed, will implement actions to correct the identified conditions and ensure that processes are in place to avoid future occurrences. Southern Nuclear Operating Company (SNC) is the organization responsible for ensuring Bechtel and the other subcontractors complete the required actions to correct the nonconforming conditions and ensuring that processes are in place to avoid future occurrences. | ||
| ENS 50798 | 25 August 2014 13:00:00 | 10 CFR 50.55(e) | Breakdown in the Quality Assurance Program for Vogtle 3&4 Construction Project | This is a 10 CFR 50.55 initial notification for a significant breakdown in the Quality Assurance (QA) Program of Chicago Bridge & Iron (CB&I), an agent for the Licensee of the Vogtle 3&4 Construction Project. In August 2014, deviations were found in sub-modules CA03-06, -08, and -09, which initiated the discovery and evaluation processes for both Part 21 and 10 CFR 50.55 . The conditions were determined to be not reportable by CB&I under 10 CFR 21, but an evaluation of the root cause analysis results concluded that a significant QA program breakdown had occurred that could have produced a defect. No defect has been identified. This initial notification is being made in accordance with 10 CFR 50.55 (4)(iii) and 10 CFR 50.55 (5)(i). The NRC Resident Inspector will be notified. | ||
| ENS 50441 | 13 March 2014 12:00:00 | 10 CFR 50.55(e) | Welding Program Deviations During Construction | This is a 10CFR50.55(e) initial notification for a significant breakdown in the Quality Assurance (QA) Program of Chicago Bridge & Iron (CB&I) Lake Charles facility, a sub-supplier of CB&I. CB&I Lake Charles supplies safety-related structural sub-modules for the Vogtle 3 and 4 construction project. In March, 2014, CB&I Lake Charles issued a root cause analysis report for welding program deviations associated with the fabrication of sub-modules being supplied to domestic AP1000 construction projects. An evaluation of the root cause analysis results concluded that a significant QA program breakdown had occurred that could have produced a defect. No defect has been identified. This initial notification is being made in accordance with 10CFR50.55(e)(4)(iii) and 10CFR50.55(e)(5)(i). The licensee notified the NRC Resident Inspector. | ||
| ENS 49595 | 24 September 2013 13:00:00 | 10 CFR 50.55(e) | Deficiency Identified in Quality Assurance Program | This is a 10 CFR 50.55(e) initial notification for a significant breakdown in the Quality Assurance (QA) Program of Chicago Bridge & Iron (CB&I) Lake Charles facility, a sub-supplier of CB&I. CB&I Lake Charles supplies safety-related structural sub-modules for the Vogtle 3 & 4 construction project. In September 2013, CB&I Lake Charles issued a root cause analysis report for deviations associated with sub-modules being supplied to domestic AP1000 construction projects. An evaluation of the root cause analysis results concluded that a significant QA program breakdown had occurred that could have produced a defect. No defect has been identified. This initial notification is being made in accordance with 10 CFR 50.55(e)(4)(iii) and 10 CFR 50.55(e)(5)(i). The licensee will notify the NRC Resident Inspector. Reference similar Summer Event (EN#49582). | ||
| ENS 48906 | 6 December 2012 12:00:00 | 10 CFR 50.55(e) | Failure to Comply with Conditions of Construction Permit | 50.55(e) initial notification for failure to comply with requirements of 10 CFR 50 Appendix B, Criterion VII for procurement of safety-related components associated with AP1000 Nuclear Power Plant construction by CB&I (formerly Shaw Nuclear). This 50.55(e) initial notification addresses a failure to comply by CB&I, an agent of Southern Company for Vogtle 3&4, to meet the requirements of Appendix B, Criterion VII. It is concluded that the QA programmatic issues, as identified by the root cause analysis associated with NRC violation 05200025/2012-004-02, could have produced a defect and this condition is reportable in accordance with 10 CFR 50.55(e)(3)(iii)(C). The root cause of the programmatic procurement problems was that the existing Shaw Nuclear procurement and quality oversight and inspection program did not include a sufficiently strategic, integrated, and graded approach to assure the required quality of material, equipment, and services. This notification closes the interim report submitted on February 4, 2013 by Southern Company. This 50.55(e) initial notification is being submitted pursuant to the requirements of 10 CFR 50.55(e)(3)(iii)(C). The licensee has notified the NRC Resident Inspector. |