ML19017A099
| ML19017A099 | |
| Person / Time | |
|---|---|
| Site: | Holtec |
| Issue date: | 01/15/2019 |
| From: | Manzione K Holtec |
| To: | Michael Layton Division of Spent Fuel Management |
| Shared Package | |
| ML19017A100 | List: |
| References | |
| 5014863 | |
| Download: ML19017A099 (2) | |
Text
Krishna P. Singh Technology Campus, 1 Holtec Blvd., Camden, NJ 08104 Telephone (856) 797-0900 Fax (856) 797-0909 Document ID 5014863 Page 1 of 2 January 15, 2019 Mr. Michael C. Layton, Director Via Regular Mail & Email Division of Spent Fuel Management Michael.Layton@nrc.gov Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738
Subject:
Supporting Documents from Holtec International PEC Meeting Ref: 1:
USNRC INSPECTION REPORT 07201014/2018-201 NRC Docket # 72-1014
Dear Mr. Layton:
As discussed in the Pre-decisional Enforcement Conference (PEC) on the apparent violations in the NRCs Inspection Report [Ref 1], Holtec is pleased to submit some supplemental information to the NRC staff. Attached to this letter is an updated version the thermal calculation package.
Separate thermal input and output files are not included with this letter, since the design basis models were previously submitted to the NRC as an attachment to Holtec Letter 5014750 (ML13114A952, for the MPC-68M) and Holtec Letter 5018036, Attachment 4 (ML15114A423, for the MPC-37). The revised calculation packages explain how that design basis model was utilized for the SSO scenario.
Also attached to this letter is the Holtec QI containing the Root Cause Evaluation (RCE) discussed at the meeting, as well as a number of communications shared with users (both in e-mail and RRTI form) following the identification of the issue.
Since this information is considered proprietary, an affidavit in accordance with 10 CFR 2.390 is also attached requesting information be withheld from public disclosure.
If you have any questions, please contact me at (856) 797-0900 ext 3951 Sincerely, Kimberly Manzione Licensing Manager Holtec International
Krishna P. Singh Technology Campus, 1 Holtec Blvd., Camden, NJ 08104 Telephone (856) 797-0900 Fax (856) 797-0909 Document ID 5014863 Page 2 of 2 Attachments: : HI-2188123 Revision 3, Thermal analysis of a HI-STORM UMAX System with MPC-37 Under a Hypothetical Failure of Shim Standoffs (Proprietary) : HI-2188393 Revision 1, Thermal Analysis of a HI-STORM 100 System with MPC-68M at Design Basis Heat Loads Under a Hypothetical Failure of Shim Standoffs (Proprietary) : QI-2418, including Root Cause Evaluation (Proprietary) : E-mail Communications to Holtec Users Group (Proprietary) : RRTI 2719-1 (Proprietary) : RRTI-2569-17 (Proprietary) : RRTI-2529-4 (Proprietary) : RRTI-2464-043 (Proprietary) : Affidavit Pursuant to 10CFR2.390 (Non-proprietary)
Distribution: Michele Burgess, NRC Marlone Davis, NRC Earl Love, NRC John McKirgan, NRC Patricia Silva, NRC Tomeka Terry, NRC