ML19310A145
| ML19310A145 | |
| Person / Time | |
|---|---|
| Site: | 07106400 |
| Issue date: | 05/08/1980 |
| From: | Jefferson R SANDIA NATIONAL LABORATORIES |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML19310A146 | List: |
| References | |
| 16416, NUDOCS 8006060168 | |
| Download: ML19310A145 (4) | |
Text
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Sandia Laboratories V.*
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A;buoverque. New Meuco 87115
.,.- 3 1 May 8, 1980 LE8 Charles E.
MacDonalf
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,;. _ c NSN Transportation Certitication Branch Division of the Fuel Cycle and Material Safety U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. MacDonald:
Ref: Ltr dtd Februaruy 29, 1980, C.
E.
MacDonald to Attached List (List Attached to Original Letter)
The letter referenced above was distributed to registered users of the packaging covered by Certificate of Compliance No. 6400, The Nuclear Materials Transportation Technology Deoartment of Sanila National Laboratories has ourchased a Model No. 6400 packaging for destructive testing in FY 81.
The progr'm is a
designed to assess the validity of analytical and scale modeling techniques for determining the response of waste containment systems under extreme impact conditions.
If, for some reason, the test program should not be conducted, the plan would be to dispose of the packaging by selling it to a potential user.
Therefore, it is possible that the use of this particular pack-aging would be governed by Revision No. 8 of Certificate of Compliance No. 6400.
Consequently, its history and present condition should enter into the considerations leading to the approval of the Certificate of Compliance.
There were three bits of information requested from registered users of the packaging in the above referenced letter.
Each of these is answered in as much detail as practicable in the follow-ing text; numbers are shown to provide direct correlation to information requested.
Item 1:
The packaging Serial No. is L-1, and only one packaging is owned by Sandia.
Item 2:
Sandia National Laboratories has never delivered this, or any other, Model No. 6400 packaging to a carrier for purposes of shipping radioactive materials.
The pack-aging was transported empty from Bremerton, WA, to Albuquerque NM, and was treated as Apment of radio-active materials since there was a 0.ce there might be l
some small amount of residual cadice.ive contamination of the packaging.
l$QhhY
Charles E.
MacDonald 2
May 8, 1980 Item 3a:
A set of drawings covering the construction of the Model No. 6400 packaging was compared to measurements taken from a survey of the packaging.
The results of this survey are shown in the set of marked drawings included with this letter.
Item 3b:
The packaging does not appear to be, or to have ever been significantly dnmaged nor does its condition appear to have deteriorated in a manner which would affect its ability to meet the requirements of 10CFR Part 71 with the one possible exception noted under Item 3C.
Item 3c:
A crack was found in the inner liner during the survey and its size and location is indicated on the sketch of the left interior wall shown on sheet 1 of 9 in the set of drawings.
Other cracks that have been found on this unit and repaired in the past are documented in Attachment No. 2. There have also been sections of the inner liner removed to inspect the liner and foam conditions.
If additional information is needed concerning this particular packaging, please contact me.
S ncerely, 3,
R. MftT[ff son, Man er Nu f ar Mat rials Transportation T chnology D)partment 4550 M
TRAndeuxTATION TECHNOLOGY CENTER LER:mh
kWCf'r[ W' 2_.
KENNETH A. GABLIN CO N SU LTAN T eroe Town < tant poAo we tc4N,vmoinix maroi
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April 25,1980 To:
H. Richard Yoshimura From:
Ken Gablin
Subject:
Inspection and Field Repairs of Sandia Super Tiger Per your discussion on Friday, April 18, 1980, the following report lists the work done on-the-Super Tiger that is currently-stored at-Sandia Laboratories.
Prior to any re-work, the entire structure was completely sand blasted inside and outside for visual inspection.
It was discovered that some of the welds had cracked and were repainted.
Due to this observation, it was agreed to completely reweld all of the welds on the outside of the container body, rather than selectively repair cracked welds.
The welding on the inner package near the door also showed signs of stress-cracking, so these welds were also repaired in the same manner.
Mag particle non destructive testing was used to verify good re-work.
The entire container was then painted with an epoxy paint.
The inner box was examined at four places in an effort to indi,cate the degree of bonding of the foam to the steel, I.ndications of the two inch diameter hole saw tests showed that bonding was good in all places, except the inner end of the box opposite the door.
Some void was noticed due to the inabilicy to get good contact of the foam and the steel in the original foaming process during manufacturing, Further tests were done, making a 6 inches sample hole in the floor and the sidewall. Good foam condition was obstirved but the floor sample indicated debonding due to the use of roller bar contact stress on the floor surface during loading of casks, To get a good sample of foam bonding and a sample of the original foam, a 12 inche's by 12 inches sample of the midhigh side wall was cut out and the entire foam depth of about 10 inches was removed and sent to Sanlia Laboratories.
This original steel inner plate was re7elded and the void was refoamed using General Plastics foam of the same formulation and density.
All other plates were rewelded with the original foam being used as the replacement material.
The exterior hinge was completely reworked and replaced with a tube and shaft made from 120 schedule pipe and the original two hinges were replaced with four st.onger ones, A new gasket was also placed on the outer door.
1 1
bec w/ Attach 2 only:
4551 R.
E.
Luna 4552 R.
B.
Pope 4552 B. J. Joseph 4552 H.
R. Yoshimura 4552 L.
E.
Romesberg 4552 FILE 2001.020 4552 FILE 3003.026 l
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VIb UNITED STATES j*
NUCLEAR REGULATORY COMMISSION f
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g WASHINGTON. D. C. 20555 s %=is/pl 2 0RANDUM FOR:
TERA Corp.
FROM:
US NRC/TIDC/ Distribution Services Branch
SUBJECT:
Special Docu=ent Handling Requirements 1.
Please use the following special distribution list for the attached document.
i 2.
The attached docu=ent requires the following specisi considerations:
O Do not send oversi=e enclosure to the NRC eDR.
Only one oversi=e enclosure was received - please return f;. ' :"1-rf "il^ :::::;;.
Proprietaryinfor=at(in-sendaffidfitonly
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To Alte foot R
the NRC PDR i
Other: (specify)
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cc: DSB Files TIDC/DS3 Authorilced ignature
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