ML20197C627

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Review of Amend Appl Re Lacrosse BWR Fuel assemblies,790922 Gen Elec Ltr to Nrc,Is in Progress.Questions Re Fuel Arrangement & Discrepancy in Calculations Are Propounded
ML20197C627
Person / Time
Site: 07001308
Issue date: 10/18/1978
From: Starostecki R
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To: Dawson D
GENERAL ELECTRIC CO.
References
NUDOCS 7811210144
Download: ML20197C627 (1)


Text

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NUCLEAR REGULATORY COMMISSION j s.l k ,j WASHINGTON, D. C 20555 OCT 181978 Docket No. 70-1308 License SNM-1265 General Electric Company Nuclear Energy Programs Division ATTN: D. M. Dawson, Manager Licensing and Tra ,sportation Mail Code 861 175 Curtner Avenue San Jose, California 95125 Gentlemen:

SUBJECT:

AMENDMENT APPLICATION REGARDING LACROSSE BWR FUEL ASSEMBLIES, GENERAL ELECTRIC LETTER TO NRC, SEPTEMBER 22, 1978 Review of the subject amendment application is in progress. The following questions have been developed:

1. The application does not address the accident condition in which a basket is accidentally dropped (or tipped) in the cask unloading pit. It was determined in the review for the major amendment of December 3,1975 that such an accident might permit fuel to extend a maximum of 42 inches out of the basket. It should be shown that this fuel arrangement is subcritical for a basket of Lacrosse assemblies.

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2. The GE application proposes that the k limit for the 10 x 10 type BWR fuel be 1.38 as compared to their consultants calculation of k,as 1.35. This discrepancy should be justified.

A prompt reply to these questions will be necessary for completion of this review by October 31, 1978.

@Richard W. Starostecki, Chief Fuel Reprocessing and Recycle Branch Division of Fuel Cycle and Material Safety 7 813 2 3 9 y p,