ML20315A270

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Enclosusafety Evaluation Report - Authorization for Limited Shipments
ML20315A270
Person / Time
Site: 07109372
Issue date: 11/10/2020
From: John Mckirgan
Storage and Transportation Licensing Branch
To: Travis Tate
Framatome
PSaverot - NMSS/DFM/STLB - 301.415.7505
Shared Package
ML20315A268 List:
References
EPID L-2020-LLL-0024
Download: ML20315A270 (2)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 SAFETY EVALUATION REPORT Docket No. 71-9372 Model No. TN-B1 Package Authorization for Limited Shipments BACKGROUND On June 15, 2020, Framatome (the applicant) submitted a request for authorization to ship Framatome Boiling Water Reactor (BWR) ATRIUM 10XM (FANP 10X10) fresh fuel assemblies, equipped with inert test rods, to support the development of Enhanced Accident Tolerant Fuels (eATF).

The fresh ATF lead test assemblies (LTAs) consist of modified FANP 10x10 BWR fuel assemblies, currently approved in the Certificate of Compliance (CoC), as described in Table 3 of the certificate. The modified fuel assemblies consist in replacing two full-length fuel rods on the periphery of the assembly with inert (i.e., containing no fissile material) test rods which include several inert rod segments connected via threaded joints. Each segment contains one of several different test configurations, including: Zircaloy 2 cladding with chromium/titanium coatings and containing Zircaloy 2 slugs, and perforated cladding containing silicon carbide test articles.

On October 9, 2020, the U.S. Nuclear Regulatory Commission staff (the staff) issued a letter authorization (ADAMS Accession No.: ML20283A358) to allow one shipment of all 8 test rods (4 fuel assemblies) in one transport.

On November 4, 2020, Framatome requested a change to the allowed number of shipments after identifying that, for a currently unforeseen reason, the reactor site might not be able to receive the planned shipment.

EVALUATION The applicant requested to increase the number of shipments from 1 to 3 to account for the possibility that:

- The reactor site may not be able to receive the eATF shipment and that, in such a case, being authorized to perform one shipment would not allow the return of the fresh eATF fuel assemblies to Framatome, thus leaving them stranded at the reactor site.

- If there were one or multiple non-conforming assemblies, the eATF assemblies would in any case need to be returned to Framatome to correct the non-compliance and then would be shipped back for delivery at the reactor site.

The applicant did not request any other change than increasing the number of shipments from 1 to 3. In particular, the applicant did not increase the total number of fresh fuel assemblies with eATF rods to be fabricated and shipped.

2 The safety evaluation previously performed (ADAMS Accession No.: ML20283A359) for the letter authorization dated October 9, 2020, was not predicated on any number of shipments.

The Model No. TN-B1 packaging design is not changed, from its current approval, and up to two modified FAs can be shipped in the Model No. TN-B1 package.

The staff finds that this request, which does not include any change to the package or its proposed contents, has no adverse impact on public health and safety. All conditions of the October 9, 2020, authorization shall remain the same.

Based on the discussion above, the staff found the applicants increased number of shipments for this letter authorization request does not affect the ability of the Model No. TN-B1 package to meet 10 CFR Part 71 requirements.

CONDITIONS (1) This Authorization is for a maximum of 3 shipments of all 8 test rods (4 fuel assemblies) in one transport.

(2) The ATRIUM 10XM LTR FAs include up to two test rods located on the periphery of the assembly, in locations B10 and L2. FAs contain commercial grade uranium, meet Type A contents, and shall be shipped channeled.

(3) TN-B1 packages transporting ATRIUM 10XM LTR FAs shall commingle only with other TN-B1 packages transporting fresh fuel assemblies currently approved in the CoC No.

9372.

(4) All other conditions of CoC No. 9372 shall remain the same.

(5) This authorization shall expire on October 31, 2021.

CONCLUSIONS Based on the statements and representations in the application dated June 15, 2020, supplemented on November 4, 2020, the staff agrees that the use by Framatome of the Model No. TN-B1 package meets the requirements of 10 CFR Part 71, subject to the conditions listed above.

Issued on November 10, 2020.