ML22350A029
| ML22350A029 | |
| Person / Time | |
|---|---|
| Site: | 99902078 |
| Issue date: | 12/21/2022 |
| From: | Beverly Smith NRC/NRR/DNRL |
| To: | Fosaaen C NuScale |
| References | |
| Download: ML22350A029 (3) | |
Text
December 21, 2022 Ms. Carrie A. Fosaaen Director, Regulatory Affairs NuScale Power, LLC 1100 Circle Boulevard, Suite 200 Corvallis, OR 97330
SUBJECT:
NUSCALE TOPICAL REPORT STATISTICAL SUBCHANNEL ANALYSIS METHODOLOGY, SUPPLEMENT 1 TO TR-0915-17564-P-A, REVISION 2, SUBCHANNEL ANALYSIS METHODOLOGY, TR-108601, REVISION 2, REVIEW SCHEDULE LETTER UPDATE
Dear Ms. Fosaaen:
By letter dated December 30, 2021, NuScale Power, LLC, submitted Topical Report "Statistical Subchannel Analysis Methodology, Supplement 1 to TR-0915-17564-P-A, Revision 2, Subchannel Analysis Methodology," TR-108601, Revision 0 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML21364A132) for acceptance review.
Additional supplemental data tables were also sent via compact disc and letter dated February 10, 2022 (ADAMS Accession No. ML22041A448).
On February 24, 2022, NRC staff requested supplemental information (ADAMS Accession No. ML22053A142) be submitted in order to complete the acceptance review. On April 25, 2022, NuScale submitted a response to this request with an update to: Statistical Subchannel Analysis Methodology, Supplement 1 to TR-0915-17564-P-A, Revision 2, TR-108601, Revision 1 (ADAMS Accession No. ML22115A221) which updated the revision of the topical report with the requested supplemental information. On May 4, 2022, the staff completed its acceptance review and began the detailed review via NRC Form 898 (ADAMS Accession No. ML22115A191) and committed to complete the Advanced Safety Evaluation Report by January 23, 2023, with approximately 825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br />.
On Tuesday, May 24, 2022, during a status call, the staff was informed by NuScale that they planned to provide a second revision to the Subchannel TR that would address earlier NRC staff feedback and would include applicable updates and corresponding assessments. In order to understand the details and bases for the information provided in the TR supplement, staff opened an audit (ADAMS Accession No. ML22168A086) on July 13, 2022.
By letter dated December 13, 2022, NuScale submitted Statistical Subchannel Analysis Methodology, Supplement 1 to TR-0915-17564-P-A, Revision 2, TR-108601, Revision 2. This update provides sufficient information to address the staffs prior request for supplemental information.
Taking into account the submittal date of this new information, as well as the substantially revised and updated information associated with the existing TRs content, the staff has developed a revised schedule in order to complete the associated review. This new schedule calls for the staff to provide NuScale with the advanced safety evaluation with no open items for
C. Fosaaen 2
proprietary material review by June 16, 2023, in lieu of the originally proposed January 23, 2023. In addition, the review will require an additional 250 staff-hours, including project management time (1,075 total hours).
If you have any questions regarding this matter, please contact Mr. Bruce Bavol, Project Manager, at (301) 415-6715 or Bruce.Bavol@nrc.gov.
Sincerely,
/RA/
Brian W. Smith, Director Division of New and Renewed Licenses Office of Nuclear Reactor Regulation Docket No.: 99902078 cc: NuScale DC ListServ
- via email NRR-106