ML22077A076

Replacement Page for Responses to the Nuclear Regulatory Commission'S (NRC) Request for Additional Information for the Request to Renew the NAC-UMS Cask System Certificate of Compliance No. 1015

ML22077A076
Person / Time
Site:	07201015
Issue date:	03/18/2022
From:	Fowler W NAC International
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
CAC 001028, ED20220036, EPID L-2020-RNW-0031
Download: ML22077A076 (4)

Text

Atlanta Corporate Headquarters 3930 East Jones Bridge Road, Suite 200 Norcross, GA 30092 Phone 770-447-1144 www.nacintl.com March 18, 2022 U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2738 Attn: Document Control Desk

Subject:

Replacement Page for Responses to the Nuclear Regulatory Commissions (NRC)

Request for Additional Information for the Request to Renew the NAC-UMS Cask System Certificate of Compliance No. 1015 Docket No. 72-1015 CAC/EPID Nos. 001028/L-2020-RNW-0031

References:

1. ED2020120, NAC International, NAC-UMS System, 72-1015 Certificate of Compliance (CoC) Renewal Application, October 13, 2020

2. Request for Additional Information for the Technical Review of the Application for Renewal of the Certificate of Compliance No. 1015 (CAC/EPID Nos. 001028/L-2020-RNW-0031), December 21, 2021

3. Submittal of Responses to the Nuclear Regulatory Commissions (NRC) Request for Additional Information for the Request to Renew the NAC-UMS Cask System Certificate of Compliance No. 1015, March 3, 2022 NAC International Inc. (NAC) hereby submits a replacement page for our responses to the NRC Request for Additional Information (RAI) sent on March 3, 2022 (Reference 3). During the preparation of the NAC-MPC RAI responses we identified an error in our response to RAI A-6 of Reference 3. The changes to RAI A-6 for AMP-5 are highlighted for emphases. The single RAI replacement page can be found in Attachment 1 to this letter.

The replacement page is common to both the proprietary and the non-proprietary submittal. The were no change to the response that were deemed proprietary in nature. Therefore, an affidavit is not included with this submittal. In accordance with NACs administrative practices, upon final acceptance of this application, the 21A, 22A and this letter the changed pages will be reformatted and incorporated into the next revision of the NAC-UMS FSAR.

ED20220036

U.S. Nuclear Regulatory Commission March 18, 2022 Page 2 of 2 If you have any comments or questions, please contact me on my direct line at 678-328-1236.

Sincerely, Digitally signed by Wren Wren Fowler Fowler Date: 2022.03.18 09:27:38

-04'00' Wren Fowler Director, Licensing Engineering

Attachment:

- Replacement Page for NAC Responses to RAIs ED20220036 to ED20220036 NAC-UMS Page 1 of 1 Docket No.: 72-1015 CAC/EPID Nos. 001028/L-2020-RNW-0031 Attachment 1 Replacement Page for the Request for Additional Information Responses NAC-UMS CASK SYSTEM, Revision 22A

NAC International NAC-UMS Personnel performing visual examinations per this AMP shall meet the qualification requirements of IWE-2330(b) or their equivalent.

AMP-3, Element 6 has been revised to read as follows:

The acceptance criteria for the visual inspections are:

No active corrosion resulting in obvious, loss of base metal.

Areas of coating failures must remain bounded by the corrosion analysis of TLAA 30013-2002, latest revision, or are entered into the corrective action program.

No indications of loose bolts or hardware, displaced parts.

The inspected condition of the examined area is acceptable per the IWE-3511 standard or their equivalent.

AMP-5 Element 4 has been revised to read as follows:

Method or Technique Aging effects are detected and characterized by:

General visual examinations using direct methods of the TFR/Transfer Adapter steel surfaces for cracking, corrosion or wear resulting in loss of base metal or coating damage which left uncorrected could result in loss of base metal.

The extent of inspection coverage will include all normally accessible and visible TFR/Transfer Adapter interior cavity and exterior surfaces. Also inspected are the retaining ring and associated bolting, shield doors and shield door rails.

Dye penetrant (PT) examinations of accessible trunnion surfaces for the presence of fatigue cracks in accordance with ASME Code,Section III, Subsection NF, NF-5350.

Visual examinations shall comply with IWE-2311 or their equivalent.

Personnel performing visual examinations per this AMP shall meet the qualification requirements of IWE-2330(b) or their equivalent.

AMP-5 Element 6 has been revised to read as follows:

For accessible surfaces, including trunnions, acceptance criteria are:

No obvious, loss of material from the base metal.

No large areas of coating failures which could expose base metal to active corrosion.

No areas of wear resulting in obvious loss of base metal.

Successful completion of dye penetrant (PT) examinations of accessible trunnion surfaces for the presence of fatigue cracks in accordance with ASME Code,Section III, Subsection NF, NF-5350.

The inspected condition of the examined area is acceptable per the acceptance standards of IWE-3511 or their equivalent.

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