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| {{#Wiki_filter:Entergy Operations, Inc. | | {{#Wiki_filter:}} |
| 1340 Echelon Parkway Jackson, MS 39213 Tel 601-368-5102 Phil Couture Senior Manager, Fleet Regulatory Assurance 10 CFR 50.55a(g)(6)(ii)(D) 1CAN042102 April 28, 2021 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001
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| ==Subject:==
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| Relief Request ANO1-ISI-026 Arkansas Nuclear One, Unit 1 NRC Docket No. 50-313 Renewed Facility Operating License No. DPR-51
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| ==References:==
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| : 1. U.S. Nuclear Regulatory Commission (NRC) letter to Entergy Operations, Inc. (Entergy), "Arkansas Nuclear One, Unit 1 - Request for Alternative ANO1-ISI-024 from Volumetric/Surface Examination Frequency Requirements of the American Society of Mechanical Engineers Code Case N-729-1 (TAC NO. MF4022)," (1CNA121404) (ML14330A207),
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| dated December 23, 2014.
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| : 2. NRC letter to Entergy, "Arkansas Nuclear One, Unit 1 - Request for Alternative ANO1-ISI-026 from Volumetric/Surface Examination Frequency Requirements of the American Society of Mechanical Engineers Code Case N-729-1 (CAC NO. MF8007)," (1CNA021701)
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| (ML17018A283), dated February 13, 2017.
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| The American Society of Mechanical Engineers (ASME) Section XI Code Case N-729-1, "Alternative Examination Requirements for PWR Reactor Vessel Upper Heads With Nozzles Having Pressure-Retaining Partial Penetration Welds," established a frequency of 10 years for the volumetric examination of the reactor vessel upper head nozzles. Entergy Operations, Inc.
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| (Entergy) previously submitted two relief requests to extend the frequency for this examination at Arkansas Nuclear One, Unit 1 (ANO-1) to approximately 15.5 years. The NRC approved both extensions (References 1 and 2).
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| Subsequent to the approval to extend this frequency, the NRC revised 10 CFR 50.55a(g)(6)(ii)(D) to require implementation of Revision 6 of the code case (N-729-6).
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| This section of the regulation also stipulates that all previous NRC-approved alternatives from
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| 1CAN042102 Page 2 of 2 the requirements of paragraph (g)(6)(ii)(D) remain valid Entergy has updated the current ANO-1 in-service inspection program plan to include the requirements of Code Case N-729-6.
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| The purpose of this letter is to notify the NRC that Entergy is no longer using ANO-1 relief request ANO1-ISI-026. ANO-1 will comply with the requirements of Code Case N-729-6, as conditioned by 10 CFR 50.55a(g)(6)(ii)(D). This letter is provided for information only and no response is requested from the NRC.
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| This letter contains no new regulatory commitments.
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| If there are any questions or if additional information is needed, please contact Riley Keele, Manager, Regulatory Assurance, at 479-858-7826.
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| Respectfully, Digitally signed Philip by Philip Couture Date: 2021.04.28 Couture 18:45:00 -05'00' PC/rwc cc: NRC Region IV Regional Administrator NRC Senior Resident Inspector - Arkansas Nuclear One NRC Project Manager - Arkansas Nuclear One Designated State Official Arkansas}}
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