ML17269A078

Response to Request for Additional Information (RAI) for Relief Request GG-ISl-021 Associated with Fourth Interval Inservice Inspection Using Code CAS N-702, Dated August 8, 2017

ML17269A078
Person / Time
Site:	Grand Gulf
Issue date:	09/22/2017
From:	Emily Larson Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CAC MF9752, GG-ISl-021, GNRO-2017-00064
Download: ML17269A078 (4)

Text

• Entergy

-=--=- Entergy Operations, Inc.

P. 0. Box756 Port Gibson, MS 39150 Eric A. Larson Vice President, Operations Grand Gulf Nuclear Station Tel. (601) 437-7500 GNR0-2017-00064 September 22, 2017 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Response to Request for Additional Information (RAI) for Relief Request GG-ISl-021 Associated with Fourth Interval lnservice Inspection Using Code Cas N-702, Dated August 8, 2017 (CAC No. MF9752)

Docket No. 50-416 License No. NPF-29

REFERENCES:

1. NRC e-mail to Entergy, Grand Gulf- Official RAI for Relief Request GG-ISl-021 Associated with Fourth Interval lnservice Inspection Using Code Cas N-702, Dated August 8, 2017 (CAC No. MF9752) (GNRl-2017/00050) (ML172358175)

2. Entergy Letter to NRC, Proposed Alternate Request for Forth Interval lnservice Inspection Program Grand Gulf Nuclear Station dated May 25, 2017 .(GNR0-2017/00034) (ML17145A321) .

Dear Sir or Madam:

In Reference 2, Entergy Operations Inc. (Entergy), requested an alternative for the Grand Gulf Nuclear Station (GGNS) lnservice Inspection Program. The request is applicable to the upcoming 4th ten-year inservice inspection interval starting December 1, 2017 and endin~ on November 1, 2024. The proposed alternative is for performing the American Society Mechanical Engineers (ASME) Code required examination on 100% of the nozzle-to-vessel welds and nozzle inner radius sections using ASME Code Case N-702. Reference 2 was a Request for Additional Information (RAI) associated with the requirements in ASME Code Case N-648-1. Attachment 1 to this letter provides the response to the RAI.

GNR0-2017-0006 4 Page 2 of 2 This letter contains no new commitments. If you have any questions or require additional information, please contact Douglas A. Neve at 601-437-2103.

Sincerely, Eric A. Larson Grand Gulf Nuclear Station Site Vice President EAUram Attachment(s): 1. GGNS Response to Request for Additional Information (RAI) for Relief Request GG-ISl-021 cc:

U. S. Nuclear Regulatory Commission ATTN: Acting - Scott Morris (w/2)

Regional Administrator, Region IV 1600 East Lamar Boulevard Arlington, TX 76011-451 U.S. Nuclear Regulatory Commission ATTN: Mr. Siva Lingam, NRR/DORL (w/2)

Mail Stop OWFN/8 81 11555 Rockville Pike Rockville, MD 20852-2738

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NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 Mr. B. J. Smith Director, Division of Radiological Health Mississippi State Department of Health Division of Radiological Health 3150 Lawson Street Jackson, MS 39213

Attachment 1 to GNR0-2017-00064 GGNS Response to Request for Additional Information (RAI) for Relief Request GG-ISl-021

Attachment 1 GNR0-20 17/00064 Page 1 of 1 Relief Request GG-ISl-22 Request for Additiona l Informatio n Question s and Response s RAl-1: If the licensee chooses to implement VT-1 in lieu of UT, please confirm that all the requirements addressed in ASME Code Case N-648-1 and the staff's condition associated with this Code Case is met for the fourth ISi interval at GGNS.

Entergy Response : If GGNS elects to perform a VT-1 visual examination in lieu of an ultrasonic examination, Code Case N-648-1 will be used. Code Case N-648-1 is incorporated into the current lnservice Inspection Program {Third Interval) and is also incorporated into the revised lnservice Inspection Program for the upcoming Fourth Interval. Code Case N-648-1 is implemented as conditioned in Regulatory Guide 1.147, Table 2.