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October 3, 1985

RETURN TO 396-SS gjtU.S. Nuclear Regulatory CommissionTransportation Certification BranchDivision of Fuel Cycle and Material SupplyWashington, D.C. 20555

Attention: Charles E. MacDonald. -

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Mail Stop 396 SS -

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Subject: Model AP-300 Type A PackageDocket No. 71-9192

Gentlemen: .

'"Attached are revisions to the SAR for our AP-300 shipping container whichhas been submitted to you with our application for a Certificate ofCompliance. The revisions have beeg made to provide the additional informationrequested in your Jetter of Septembejr 24, 1985.

The responses are related to the dra .ings provided in the report and have beeAtmarked as revision 8 in the text for easy identification.

In conformance with your request, we are submitting the appropriate revisionsas part of a consolidated applicatio including. drawings.

We hope that these revisions clarify the design of-the cask and meet with yourapproval, so that we may be granted a Certificate of Compliance at your earliestconvenience. '

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Very truly yours,'

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REVISION 8 - 10/2/85

Remove Pages Insert Pages

1.2-4 7.3-1 1.2-4 7.3-1

7.1-2 8.1-1 7.1-2 8.1-1

7.1-5 8.2-1 7.1-5 8.2-1

Drawings: Drawings:

133-1 133-1

134-1 134-1

135-1 134-la136-1 135-1

138-1 136-1

138-1143-1138-la,

144-1143-1

145-1144-1

145-1

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Dockst # 71-9192 q

Page 1''Responses to Letter Dated 9/24/85

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Drawing No. 133-1, Rev. 6

1. The drawing should show the 1-inch thick x 24-inch square plate which ispart of the lift / tie-down arrangement. The plate should be given a part ,

number and listed in the Material List giving the number required and the

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material s,pecification.'

The lift / tie-down pad has been renumbered as part no. 10a and.thepad m enting plate has been given part no. 10b and is listed in the

. parts list together with dimensions, material specifications and#number required.

2. The toroidal ring is not correctly shown in the half elevation of thecask. The picture should be corrected.

The drawing has been revised to show that toroidal ring obscurestop''of cask.

3. The picture of the lift / tie-down lug does not agree with.the lug shown on-;

Drawing No. 138-1, Rev. 7 in that the lug appears to be thicker at oneend chan the other. This discrepancy should be cc-rected.

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The lift / tie-down lug is 4" thick for its entire length. The' detail-in Drawing No. 138-1 shows this fact more accurately.. Drawing No.133-1 has been revised to show the correct attachment;of the lug to

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the mounting plate and should show no discrepancy..

4. Show that a shackle having a 2.75-inch screw pin, as called for on page2.4-3, is dimensionally compatible with the. lift / tie-down. lug design- considering the hole location relative to the 1-inch thick pad and the1-inch fillet weld which joins the lug to the pad.

A nominal shackle size of 2 " will be used to lift the caskusing a~2.75 inch pin., The outside diameter of.the shackleeye is Sh"...The 1 inch fillet veld willnot interfere with theshackle as shown on Drawing 138-la, a new dsawing, which ispresented ~to show the shackle attachment..

-5. The lid gasket dimensions (haterial List, Part No. 11) do not agreewith the dimensions 'shown on Drawing No. 139-1.

Thelidgasket.dimensionshavebeenrevisedtoshowthefollow'ing,dimensions'-76.125" 1.D. x 80.875" 0.D. -x 1/8" thick . which agrees 'with the dimensions shown on Drawing;139-1.

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6. In the' Material List, Part No. L-4, delete the word " Ring" and the letter"H". Also, delete the letters "S.S." part.No. B-3 and the letter "H"

Part No. B-5.

The wor'd " Ring" and letter "H" have been-deleted from Part L-4,.theletters "S.S." have been deleted from Part B-3, and the letter "H"has been deleted from part B-5.

7. In the Material List, Part No. B-9, the 82.4 inch dimension is not inagreement with the radius dimension given on page 2.6-15.

The ditmeter dimension of part no. B-9 has been revised to82.375 inches to reflect the dimensions, given on page 2.6-15,accurately.

Drawing No. 134-1, Rev. 6

1. The detail of the bottom corner should be identified.as Detail "A" as

. referenced by Drawing No.133-1.

This revision of Drawing No. 134-1 identifies this section as Detail "A".

2. Part Nos. 41 and 34 should appear in_the Material List indicating the~

number required and the material specification.

The parts identified as Nos. 41 and 34 Rev. 6 of this. drawing are-thesame part which is actually part no. 43.-. This part is listed in theParts list of Drawing No. 146-1 where it-is shown as a plug. 1.50"'dia. x 1.25" 1 fabricated from A-516 Gr-70, three of which arerequired. This revision of the drawing identifies- this part correctly.

3. Show where Part No. 34 is used.

As indicated above,part No. 34 shown in Rev.-6 of this drawing isin error.

4. Clarify the' note .which states, "3 Req'd. - See Drwg. No.133-1".

As noted above in response to question 2, this error has..beendeleted. The reference of " 3 Reg'd" refers to part no. 43.

5. Consideration'should be given in the size of the fillet veld whichjoins Part No. B-9, square tube, to Part No. B-1, outer shell. Therelatively large fillet weld against the thin wall tube could causeunacceptable distortion in the tube cross-section,

y-The fillet weld requirement has been reduced to 1/8" in considerationof the thin wall of the tube. ~ ,

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6.~' Detail "B" must provide the dimensional information needed to supportthe condition stated on page 1.2-4, second paragraph, first sentence.

Drawing number 134-la, a new drawing is presented to show-lid and cask sections with clearanc'es, nominal.

Drawing No. 136-1, Rev. 3

1. The drawing refers to a Detail "A" and the plan view of the closure lid

indicates there is a Section A-A. The drawing should cite the drawingnumbers where these' details can be found.

Detail "A" and Section a-A of the lid closure are found inDrawing No. 135-1 and are so noted in this revision of Dwg.136-1.

2. 'The eye bolt specifications on page 2.~4-6 should app' ear on the drawing.It should be noted that a part number has not been assigned to thisitem and the number of eye bolts required has not been stated. Also,the locaticn of Detail "D" should be given.

The part number of the eye bolt 57 is listed in Dwg. No. 151-1revision 1 which lists the dimensions as 1k" D x 3"1 and indicatesthat 4-ere required fabricated of drop forged steel. The locationof Detail "D" has been indicated on this-revision.

3. It is noted that a Part No. 34 is called for..however, this item isdifferent than the Part No. 34 shown on Drawing No. 134-1.

The part no. 34 shown in this drawing is correct. The descripcionof this part is found in the parts list shown in Drawing 146-1.

Drawing No. 138-1, Rev. 7

1. The drawing should note the number of 24-inch x 24-inch pads' requiredand the material specification.

The number of- pads, although indicated in drawing title, has been-added. The material specification, A516 Gr 70, is noted in theparts list of Drawing 133-1.

2. Correct the discrepancy between the descriptica of the lifting. pad eyeson page 1.2-4 and the drawing dimensions.'

The drawing dimensions are correct and the description on page-1.2-4 has been revised.

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Drawing No.'143-1 Rev. 1

.It is'noted that Part No. 41 is'also' called for on Drawing No. 134-1,however the material thickness and the material. specifications of.the

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plates _into which Part No. 41 is installed are different.

' Part No. 41: shown in- this drawing is correct. As shown in ourcomments. to. Drawing No. L134-1, the part .there was identifed inerror.--Material specifications for this part are detailed inDrawing No.1 146-1.

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Material Lists-

Part< numbers and part' identifications need clarification. There are partnumbers shown-_on the' drawings with no indication as to where they are used,-how many are required, or the material. specification. In some cases, the

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same part number is used for different. items and there are items shownwith no part number given.

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There are three drawings which comprise the total materialslist. They are drawing numbers 133-1, 146-1 and 151-1. All

parts shown.on the drawf.ngs are identified in these lists asto their dimensions, material ofjfabrication and numbersrequired.

|Operating Procedures

1. Loading Procedure, Operation No. 10. Does a 2-inch shackle' provide a-2.75 -inch minimum pin as called, for on page 2.4-3.

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Operation- No.10 has been revised to show the use. of a' 2 "nominal shackle.

2. Loading Procedure, Operations Nos.139 and 40.- Prior to placing cask in~

transport ring, the 2 "' square tube, Part No. B-9, Drawing No. 134-1,should be inspected. Establish minimum. acceptable tube. conditions and~corrective action to be taken if' tube dondition does not. meet theacceptance; criteria.-

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Minimum tube conditions havelbeen established so that repairsmust be' instituted or the tube replaced if the tube is crackedor deformed to a height of 2-1/8".- ,

3. Under7.3.2, General ~Preparationsfor.Em,pty.PackageTransport.-. Reference should' be made to;the requirements.of;49.CFRT 173.4271" Empty Radioactive Materials Packaging".

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-Stepf4 in Section 7.3.2 is. revised-to. read:

~ " The _ requirements of .49 CFR 173.427 " Empty' Radioactive~

Materials Packaging" shall be complied 01th where applicable."

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~ Acceptance Tests

The pressure test and leak test procedures should cite a single specifictest pressure. .

The text has been revised so that the pressure test willbe conducted at 10 psig-and the leak test at 7h psig.

Maintenance Program

1.. Under 8.2.1.1, Structural, inspection of the square tube, Part No. B-9,Drawing No. 134-1 should be listed as a required inspection. See

discussion under Operating Procedures, Item 2.

An annual inspection of structural condition of the square tubehas been added to Section 8.2.1.1.

2. The pressure test and leak test procedures should citc a single specifictest pressure.

The pressure and leak tests have been specified and will becarried out at a pressure of 10 psig.

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