ML20206F483

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Forwards Request for Addl Info Re 860106 & 0207 Applications for Amend to Certificate of Compliance 9019 for Model BU-7, Including Identification Plate Spec Written to Ensure Identification Number Will Survive Fire Test
ML20206F483
Person / Time
Site: 07109019
Issue date: 06/18/1986
From: Macdonald C
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To: Winslow T
GENERAL ELECTRIC CO.
References
NUDOCS 8606240482
Download: ML20206F483 (3)


Text

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g-M REnlRM g d 5f30g' FCTC: RHO JtM18 W 13-g 71-9019 General Electric Conpany ATT?l: f!r. T. P. llinslow -

P.O. Box 780 lifinington, !!C 28402 Gentlenen:

This refers to your application dated January 6,1986, as supplenented February 7,1986, requesting an anendment to the 11odel flo. BU-7 package.

In connection with our review, we need the infomation identified in the enclosure to this letter.

Please advise us within 30 days from the date of this letter when this infomation will be provided. The additional infomation requested by this letter and the supplement provided on February 7,1986, should be subnitted in the fom of revised pages to your January 6,1936, application.

If you have any questions regarding this natter, we would be pleased to reet with you and your staff.

Sincerely, 0W MW g H ndasmien Charles E. MacDonald, Chief Transportation Certification Branch Division of Fuc1 Cycle and Material Safety, etSS

Enclosure:

As stated Distribution: w/ encl 1 Docket File NRC PDR .

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General Electric Conpany I'odel "o. BH-7 Package Docket Mo. 71-9019 JUN 181985 Encl to ltr 4td:

DRA'1IMG

1. General Electric Conpany Prewinn No.11?D159? should be revisrd to specifically list alternatives to the DOT Specification 171f steel drun. The "or ecuivalent" specification should be deleted fror the drawing.
2. The identification plate on the packaoe should be specified such that the "cdel "o., Identification Fo., and attachnent idll survive the fire test.

STRUCTuoAL

1. The !bdel t'o. BU-7 shipping package does not incorporate a tanperproof feature (10 CFR $71.43(b)).

?. It is noted that the application uses both the English Systen and the retric Systen in the application. Hovrver, they are not used consistently throughout the application, e.g., the gross teeight of the package and the density of the insulating nedia are given in the English Syster<, whereas test smight of the content is given in the !'etric Systen. The units should be consistent threunhout the structural section.

3. Table 4.1 indicates that the densijy of the insulating nedia id11 he linited to +1 lb/f t" of 8 lb/ft ; ho,over, Table 4.1 also ingicates that the rinirsh per71ssible density can be as Ic'+ as 4.0 lb/f t .

This discrepancy should be addressed. Furthernare, it is not apparent what density of the insulating redia was used in the prototype testing progran. The density of the insulating :<dia as used in prototype testing should be specified. (Any deviation should be addressed.)

4. The application needs to assess the effects of external pressure reduced to 3.5 psia under normal conditions of transport.

Ti!ET'5L Justify the adequacy of using four,1/4-inch diareter vent holes rather than the 1/2-inch diameter vent holes that had been previously found acceptable for the DOT Specification 6M package (49 CFR 5178.104).

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1 CRITICf.LITY The application did not establish the subcriticality of the single package (10 CFR 571.55(b)) for if02 pellets uith fuel densities between 4.5 and 9.39 cn/cc.

OPERATI"G PROCEDl'RES, Ar.CCPT/"CE TESTIllG, A"D t'AI!!TEMAf?CE PPMGRN1 The application is inccrolete in that specific sections addressing detailed operating procedures, acceptance testing, and naintenance program have not been included in the consolidated application.

DISCLAI"C" Enclosure 1C ("EDO-11277) contains a Disclainer of Responsibility on the part of the reneral Electric Conpany and the author of the nuclear criticality safety analysis for the shiprent of urantun oxide pellets.

Contents and analysis for ubich the reneral Electric Co pany does not assune responsiblility will be deleted fron the application.

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NRC FORM 318 (10-80) NRCM 0240 OFFICIR RECORD COPY