ML20214V432
| ML20214V432 | |
| Person / Time | |
|---|---|
| Site: | 07109151 |
| Issue date: | 11/19/1986 |
| From: | House W CHEM-NUCLEAR SYSTEMS, INC. |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML20214V435 | List: |
| References | |
| 27521, RA-0592-6, RA-592-6, NUDOCS 8612090684 | |
| Download: ML20214V432 (4) | |
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CHEM-NUCLEAR SYSTEMS,INC.
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220 Stonerdge Drive
- Columba South Carohna 29210 November 19, 1986 RETURN TO 396-S5 RA-0592-6 o@hS},w RECEIVED 9
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2 Mr. Charles E. MacDonald q g, i
9-u,3.huc Chief, Transportation Certification BrancW
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U.S. Nuclear Regulatory Commission Washington, D.C.
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REFERENCE:
Docket No. 71-9151
Dear Mr. MacDonald:
With regard to your letter of October 2, 1986, Chem-Nuclear Systems, Inc.
submits the enclosed responses to your comments regarding our June 9, 1986 amendment request for Model No. CNS 14-170, Series III package.
The information is provided as eight copies of response pages, revised drawings and a completely revised document CNSI 9151-S1, Revision No. 2, with changes marked in the margin.
If we can be of any further assistance, please do not hesitate to contact us.
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3.Sincer.ely,A S
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sCHEM-yCLEARSYSTEMS,INC.
W& A?!n Williani, B. House Director, Licensing WBH:nhs Enclosures e
Supplement CNSI 9151-S1, Rev. 2 83NPc ~
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'9 Drawings: C-110-D-0017, Rev. C (2 sheets)
NOV2 SIS 8S) A C-110-D-0018, Rev. C (2 sheets)
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Chem-Nuclear Systems, Inc.
Model No. CNS 14-170, Series III Package Docket 140. 71 -91 51 Enclosure to Letter Dated: November 17, 1986 DRAWINGS 1.
On Drawing No. C-110-D-0017, Sheet 1, Rev. B, the 80-inch and 81-1/2-inch diameters are not compatible with the 7/8-inch plate thickness.
The 81-1/2-inch diameter reference has been changed to 81-1/2-inch diameter minimum.
2.
The nominal shell diameter shown in Detail Item 3 and Item 4, Drawing No.
C-110-D-0017, Sheet 2, Rev. B, are not compatible with the 1-3/4-inch nominal lead thickness.
On Drawing C-110-D-017, Rev. B, the I.D. of the cask 72-1/4" must be held between 72-1/4" and 72-1/2". All other dimensions are determined during fabrication in order to maintain a minimum lead thickness of 1-3/4".
Based on the minimum cask I.D. and minimum lead thickness, the minimum allowed cask 0.D. is 81-1/2" as shown on Drawing C-110-D-0017, Sheet 1, Rev. C.
The reference shell diameters on Drawing C-110-D-0017, Sheet 2, will provide a lead annulus within the required tolerance band, even when the cask I.D. is made to the maximum allowed dimension.
These dimensions are provided to assist the fabricator but are not binding.
Final determination of cask shielding integrity is based on a gamma scan, paragraph 4.1.3 of the acceptance test and maintenance program, not on cask dimensions.
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Chem-Nuclear Systems, Inc.
Model No. CNS 14-170, Series III Package DOCKET No. II-Vibi Enclosure to Letter Dated: November 17, 1986 1
ACCEPTANCE TEST AND MAINTENANCE PROGRAM I
1.
Paragraphs 4.1.2 and 4.2.2 cite nondestructive examination requirements which are different than those specified by the packaging drawings.
This inconsistency should be corrected.
Paragraphs 4.1.2 and 4.2.2 have been corrected to specify Subsection NF and Article NF-5000.
2.
The acceptance test program should address the load testing of the tie-down lugs as specified by drawing notes 7 and 10 on Drawing Nos.
C-110-D-0017, Rev. B and C-110-D-0018, Rev. B, respectively.
The tiedown lugs and lift lugs are on the same welded structure.
When the lift lugs are load tested all the welds in this structure are stressed and l
receive visual and magnetic particle examination.
Therefore, the reference to load testing of the tiedown lugs has been removed from Drawing Nos. C-110-D-0017, Rev. B, and C-110-D-0018, Rev. B.
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