ML20275A060

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Oklo Aurora - Step 1 Classification of Structures, Systems and Components Audit Plan
ML20275A060
Person / Time
Site: 05200049
Issue date: 10/01/2020
From: Benjamin Beasley
NRC/NRR/DANU/UARL
To:
Mazza J , NRR/DANU/UARL, 301-415-0498
Shared Package
ML20275A032 List:
References
EPID L-2020-NEW-0004
Download: ML20275A060 (4)


Text

OKLO AURORA - STEP 1 STRUCTURES, SYSTEMS, AND COMPONENTS CLASSIFICATION REQUEST FOR ADDITIONAL INFORMATION AUDIT PLAN (EPID L-2020-NEW-0004)

APPLICANT INFORMATION Applicant: Oklo Inc.

Applicant Address: 230 E Caribbean Dr. Sunnyvale, CA 94089 Plant Name(s) and Unit(s): Aurora Docket No(s).: 52-0049

Background:

By letter dated March 11, 2020 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML20075A000), Oklo Power LLC (Oklo), submitted a combined license (COL) application for one micro-reactor to be located at the Idaho National Laboratory located in Idaho. This proposed plant is to be designated as the Aurora. By letter dated June 5, 2020 (ADAMS Accession No. ML20149K616), the U.S. Nuclear Regulatory Commission (NRC) informed Oklo of their decision to accept the application for docketing and that a two-step approach will be used in order to gain alignment on four key safety and design aspects of the licensing basis prior to establishing a schedule for the licensing review. One of those key safety and design aspects is the classification of structures, systems, and components (SSCs). As part of the Step 1 review, the NRC staff drafted Request for Additional Information (RAI) 9775 (ADAMS Accession No. ML20267A529) to identify the information needed to support review of the SSC classification. The NRC staffs audit follows the guidance in Nuclear Reactor Regulation Office Instruction LIC-111, Regulatory Audits, Revision 1 (ADAMS Accession No. ML19226A274).

Purpose:

The purpose of this audit is to gain a better understanding of the basis for the information in the Oklo application for SSC classification, identify additional information that may be needed on the docket, and potentially formulate additional RAIs to aid in the closure of Step 1.

Regulatory Audit Basis:

The bases for this audit are as stated in RAI 9775.

Regulatory Audit Scope or Methodology This regulatory audit is to understand the level of quality that is applied to the design, fabrication, construction, and testing of SSCs that are relied upon to remain functional during and following design basis events and those SSCs relied on for defense in depth.

Information and Other Material Necessary for the Regulatory Audit The staff requests to review documents implementing the Quality Assurance Program (QAP),

design documents, and test reports for SSCs that are relied upon to function during and following design basis events and those SSCs relied on for defense in depth to determine the quality aspects that are specified. Quality aspects include, but are not limited to, codes and standards to which SSCs are designed, fabricated, constructed, and tested and quality assurance requirements specified via the QAP.

Team Assignments Jan Mazza Project Manager, NRR/DANU/UARL - overall audit coordination Bill Reckley Sr. Project Manager. NRR/DANU/UARP, lead - general audit coordination and audit summary development Tim Drzewiecki Reactor Systems Engineer, NRR/DANU/UART - review of implementing documents and design documents for quality aspects Ian Jung Sr. Reliability and Risk Analyst, NRR/DANU/UART - review of implementing documents and design drawings with concentration on I&C and electrical systems Tim Lupold Sr. Mechanical Engineer, NRR/DANU/UART - review of implementing documents and design drawings concentrating on major mechanical components Antonio Barrett Reactor Systems Engineer, NRR/DANU/UART - review of implementing documents and design drawings concentrating on reactor core components Andrew Yeshnik Materials Engineer, NRR/DANU/UART - review of implementing documents and design drawings concentrating on material quality aspects of major mechanical components Logistics Entrance Meeting October 2, 2020 [Time TBD]

Exit Meeting October 16, 2020 [Time TBD]

Audit meetings take place in a virtual format, using Microsoft Teams, or in a platform requested by the applicant. If needed, audit meetings will take place occasionally on dates and at times agreed to with the applicant.

Special Requests The NRC staff requests that documents be made available to the staff via an electronic media such as BOX.

Deliverables At the completion of the audit, the audit team will issue the regulatory audit summary within 90 days after the exit meeting but will strive for a shorter duration.

References Oklo Inc. Quality Assurance Program Description (QAPD): Design and Construction, OKLO-2019-14-NP, Rev. 0 Dated June 30, 2019 (ADAMS Accession No. ML19178A069)

U.S. Nuclear Regulatory Commission Final Safety Evaluation for Oklo, Inc. Topical Report OKLO-2019-14-NP, Rev 1, Quality Assurance Program Description - Design and Construction (EPID NO. L-2019-TOP-0024) Dated August 11, 2020 (ADAMS Accession No. ML20205L415)

Date: October 1, 2020

/RA/

Benjamin G. Beasley, Chief Advanced Reactor Licensing Branch Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation cc: Distribution via list serv

ML20275A060 OFFICE NRR/DANU/UARL/PM* NRR/DANU/UARL/LA* NRR/DANU/UART/BC*

NAME JMazza SLent MHayes DATE 09/29/2020 10/01/2020 09/29/2020 OFFICE NRR/DANU/UARL/BC*

NAME BBeasley DATE 10/01/2020