GNRO-2013/00066, Criticality Safety Analysis License Amendment Request - Supplemental Information

Criticality Safety Analysis License Amendment Request - Supplemental Information

ML13249A235
Person / Time
Site:	Grand Gulf
Issue date:	09/05/2013
From:	Ford B Entergy Operations
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
GNRO-2013/00066
Download: ML13249A235 (7)

Text

Entergy Operations, Inc.

1340 Echelon Parkway Jackson, MS 39213 Bryan S. Ford Senior Manager, Licensing Tel. (601) 368-5516 GNRO-2013/00066 September 5, 2013 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

Criticality Safety Analysis License Amendment Request -

Supplemental Information Grand Gulf Nuclear Station, Unit 1 Docket No. 50-416 License No. NPF-29

REFERENCE:

Entergy Operations, Inc. letter to the NRC (GNRO-2011/00076), License Amendment Request - Criticality Safety Analysis and Technical Specification 4.3.1, Criticality, September 9, 2011 (ADAMS Accession No.

ML1125321287)

Dear Sir or Madam:

In the referenced letter, Entergy Operations, Inc. (Entergy) submitted to the NRC a license amendment request (LAR), which proposes to: 1) revise the criticality safety analysis (CSA) for the spent fuel and new fuel storage racks; 2) impose additional requirements for the spent fuel and new fuel storage racks in Technical Specification (TS) 4.3.1, Criticality; and 3) delete the spent fuel pool loading criteria Operating License (OL) condition.

In a recent telephone call, the NRC discussed with Entergy the CSA LAR. As a result of that call, Entergy proposes the following limitation be included in the issued license amendment:

The licensee will maintain a minimum distance of 12 inches between any fuel stored in the Control Blade/Defective Fuel Storage Rack (Module H1) and in the surrounding high density spent fuel pool storage racks.

In addition to the above, Entergy is submitting an administrative change to the CSA LAR. In the referenced letter, Entergy provided in Attachment 2 a markup of the OL page that was current at the time of submittal. However, since that time, the NRC has issued TS amendments, which have revised that page. Therefore, Entergy is providing in Attachment 1 to this letter a markup of the current OL pages associated with the CSA LAR. Please replace Page 1 of 4 in Attachment 2 to the referenced letter with the marked-up pages provided in .

This letter contains one new commitment, which is identified in Attachment 2.

GNRO-2013/00066 Page 2 of 2 If you have any questions or require additional information, please contact Guy Davant at (601) 368-5756.

I declare under penalty of perjury that the foregoing is true and correct; executed on September 5, 2013.

Sincerely, BSF/ghd Attachments: 1. Marked-Up Operating License Pages

2. List of Regulatory Commitments cc: Mr. Steven A. Reynolds State Health Officer Regional Administrator (acting), Region IV Mississippi Department of Health U. S. Nuclear Regulatory Commission P. O. Box 1700 1600 East Lamar Blvd. Jackson, MS 39215-1700 Arlington, TX 76011-4511 U. S. Nuclear Regulatory Commission NRC Senior Resident Inspector ATTN: Mr. A. B. Wang, NRR/DORL (w/2) Grand Gulf Nuclear Station ATTN: ADDRESSEE ONLY Port Gibson, MS 39150 ATTN: Courier Delivery Only Mail Stop OWFN/8 B1 11555 Rockville Pike Rockville, MD 20852-2378

ATTACHMENT 1 GRAND GULF NUCLEAR STATION GNRO-2013/00066 MARKED-UP OPERATING LICENSE PAGES

to GNRO-2013/00066 Page 2 of 2 Regiell II 4X4 S LoLage eon£ig uzaLio11 (46) This license condition provides for monitoring, evaluating, and taking prompt action in response to potential adverse flow effects as a result of power uprate operation on plant structures, systems, and components (including verifying the continued structural integrity of the steam dryer) for power ascension from the CLTP (3898 MWt) to the EPU level of 4408 MWt (or 113 percent of CLTP or 11S percent of OLTP) .

(a) The following requirements are placed on operation of the facility before and during the power ascension to 3898 MWt:

1. GGNS shall provide a Power Ascens i on Test (PAT) Plan for the Steam Dryer testing. This plan shall include:

• Criteria for comparison and evaluation of projected strain and acceleration with on-dryer instrument data.

• Acceptance limits developed for each on-dryer strain gauge and accelerometer.

• Tables of predicted dryer stresses at CLTP, strain amplitudes and PSDs at strain gauge locations, acceleration amplitudes and PSDs at accelerometer locations, and maximum stresses and locations.

The PAT plan shall provide correlations between measured accelerations and strains and the corresponding maximum stresses. The PAT plan shall be submitted to the NRC Project Manager no later than 10 days before start-up.

2. GGNS shall monitor the main steam line (MSL) strain gages and on-dryer instrumentation at a minimum of three power levels up to 3898 MWt. Based on a comparison of projected and measured strains and accelerations, GGNS will assess whether the dryer acoustic and structural models have adequately captured the response significant to peak stress projections.

16b Amendment No. ~

ATTACHMENT 2 GRAND GULF NUCLEAR STATION GNRO-2013/00066 LIST OF REGULATORY COMMITMENTS to GNRO-2013/00066 Page 1 of 1 LIST OF REGULATORY COMMITMENTS This table identifies actions discussed in this letter for which Entergy commits to perform. Any other actions discussed in this submittal are described for the NRCs information and are not regulatory commitments.

TYPE SCHEDULED (Check one)

COMMITMENT COMPLETION DATE ONE-TIME CONTINUING (If Required)

ACTION COMPLIANCE Entergy will maintain a minimum distance of 12 Upon implementation inches between any fuel stored in the Control of the approved Blade/Defective Fuel Storage Rack (Module H1) license amendment and in the surrounding high density spent fuel pool storage racks.