ML23299A039

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U.S. Nuclear Regulatory Commission Staff Observation on Framatome White Paper, Regulatory Engagement for High Burnup Fuel Fragmentation Relocation and Dispersal (EPID L-2023-LRO-0059) - Cover Letter
ML23299A039
Person / Time
Site: 99902041, PROJ0728
Issue date: 10/27/2023
From: Gerond George
Division of Operating Reactor Licensing
To: Elliott G
Framatome
References
EPID L-2023-LRO-0059
Download: ML23299A039 (1)


Text

OFFICIAL USE ONLY - PROPRIETARY INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 27, 2023 Ms. Gayle Elliott, Director Licensing and Regulatory Affairs Framatome, Inc.

3315 Old Forest Road Lynchburg, VA 24501

SUBJECT:

U.S. NUCLEAR REGULATORY COMMISSION STAFF OBSERVATION ON FRAMATOME WHITE PAPER, REGULATORY ENGAGEMENT FOR HIGH BURNUP FUEL FRAGMENTATION, RELOCATION AND DISPERSAL (EPID NO.: L-2023-LRO-0059)

Dear Ms. Elliott:

By letter dated August 4, 2023 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML23219A031), Framatome, Inc. (Framatome) requested written feedback on issues associated with its proposed near-term approach for addressing fuel fragmentation, relocation, and dispersal (FFRD) in high burnup fuel following a postulated loss-of-coolant accident (LOCA). In the white paper, Framatome specifically requested the NRC staffs feedback to following the conceptual items.

1. It is acceptable to employ risk and safety significance to define the appropriate level of reasonable assurance of adequate protection of public health and safety.
2. A level of reasonable assurance commensurate with risk, but lower than the traditional high probability level, is justifiable for extremely low frequency of occurrence large piping breaks, and
3. It is acceptable to employ a supplemental analysis using the level of reasonable assurance defined above to demonstrate that LOCA-related Final Safety Analysis Report (FSAR) safety analyses remain applicable, and plants remain in compliance with existing regulations.

The NRC staff is providing feedback on the information provided by Framatome on the docket.

The proprietary and non-proprietary versions of the document containing NRC staffs feedback are in Enclosures 1 and 2, respectively.

NOTICE: Enclosure 1 to this letter contains Proprietary information. When separated from the, this document is DECONTROLLED.

OFFICIAL USE ONLY - PROPRIETARY INFORMATION OFFICIAL USE ONLY - PROPRIETARY INFORMATION If you have any questions about this matter, please contact Ngola Otto at 301-415-6695 or by e-mail at Ngola.Otto@nrc.gov.

Sincerely,

/RA/

Gerond A. George, Chief Licensing Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No.: 99902041 Project No. 728

Enclosures:

As stated

ML23297A057 (package)

ML23299A039 (Cover Letter)

ML23256A292 (Proprietary)

ML23297A048 (Non-proprietary)

NRC-001 OFFICE NRR/DORL/LLPB/PM NRR/DORL/LLPB/LA NRR/DSS/SFNB/BC NAME NOtto DHarrison SKrepel DATE 09/13/2023 10/26/2023 09/20/2023 OFFICE OGC NRR/DORL/LLPB/BC NRR/DORL/LLPB/PM NAME MASpencer GGeorge NOtto DATE 10/13/2023 10/19/2023 10/27/2023