ML21106A216

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Request to Delay Review of Relief Requests GG-ISI-020 and RBS-ISI-019
ML21106A216
Person / Time
Site: Grand Gulf, River Bend  Entergy icon.png
Issue date: 04/16/2021
From: Couture P
Entergy Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
CNRO2021-00013
Download: ML21106A216 (2)


Text

Entergy Operations, Inc.

1340 Echelon Parkway Jackson, MS 39213 Tel 601-368-5102 Phil Couture Senior Manager, Fleet Regulatory Assurance 10 CFR 50.55a(z)(1)

CNRO2021-00013 April 16, 2021 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Request to Delay Review of Relief Requests GG-ISI-020 and RBS-ISI-019 Grand Gulf Nuclear Station, Unit 1 NRC Docket No. 50-416 Renewed Facility Operating License No. NPF-29 River Bend Station, Unit 1 NRC Docket No. 50-458 Renewed Facility Operating License No. NPF-47

References:

1. Entergy Operations, Inc. (Entergy) letter to U.S. Nuclear Regulatory Commission (NRC) "Request to Update ASME Code Relief Request Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020, and RBS-ISI-019)," (ADAMS Accession No. ML20160A032),

dated June 8, 2020

2. NRC Electronic mail, "Entergy Fleet (Grand Gulf and River Bend) - Relief Request (RR) Associated with ASME Code RR Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019) (EPID L-2020-LLR-0079)," dated March 23, 2021 In Reference 1, Entergy Operations, Inc. (Entergy) requested a revision to U.S. Nuclear Regulatory Commission (NRC) Safety Evaluations (SEs) concerning the use of the Boiling Water Reactor Vessel and Internals Project (BWRVIP) Guidelines in lieu of specific American Society of Mechanical Engineer (ASME) Code requirements on Reactor Pressure Vessel internals and components inspection (i.e., Relief Request GG-ISI-020 for Grand Gulf Nuclear Station, Unit 1 (GGNS) and Relief Request RBS-ISI-019 for River Bend Station, Unit 1 (RBS)).

CNRO-2021/00013 Page 2 of 2 By email correspondence dated March 23, 2021 (Reference 2), the NRC provided guidance to Entergy concerning a proposed delay in NRC action on the subject relief request. This delay is necessary to complete the fuel sampling and verification of catalyst loading at GGNS that is required by BWRVIP-62-A, "BWR Vessel and Internals Project, Technical Basis for Inspection Relief for BWR Internal Components with Hydrogen Injection."

The purpose of this letter is to formally request this delay, as well as provide the details of Entergy's proposed plan to: 1) complete the fuel sampling at GGNS; 2) verify that the catalyst loading is greater than 0.1 g/cm2; and 3) document the verification in a supplemental letter to the NRC.

Entergy plans to complete the fuel sampling at GGNS no later than June 25, 2021, verify the catalyst loading no later than August 19, 2021, and provide the verification results to the NRC no later than August 26, 2021. Entergy will promptly notify the NRC of any changes to this schedule.

There are no regulatory commitments contained in this letter.

Should you have any questions or require additional information, please contact me at (601) 368-5102.

Respectfully, Phil Couture PC/jls cc:

NRC Region IV Regional Administrator NRC Senior Resident Inspector - Grand Gulf Nuclear Station, Unit 1 NRC Senior Resident Inspector - River Bend Station, Unit 1 NRC Project Manager - Entergy Fleet NRC Project Manager - Grand Gulf Nuclear Station, Unit 1 NRC Project Manager - River Bend Station, Unit 1