ML20235W840
| ML20235W840 | |
| Person / Time | |
|---|---|
| Site: | 07109044, 07109081 |
| Issue date: | 02/24/1987 |
| From: | House W CHEM-NUCLEAR SYSTEMS, INC. |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| 27910, RA-0140-7, RA-140-7, NUDOCS 8710190054 | |
| Download: ML20235W840 (2) | |
Text
l 2ETURN TO. 396-SS 1/- 90 W 7#' 900/
CHEM-NUCLEAR SYSTEMSc INC.
220 Stoneridge Drive
- Columbia, South Carolina 29210 P
'S February 24, 1987
{
RA-0140-7 e
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n Mr. Charles E. MacDonald b
I gECEIVED l
Chief, Transportation Certification Brancht Division of Fuel Cycle and Material Safetyr N
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U.S. Nuclear Regulatory. Commission g
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(Aragy
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j Washington, D.C.
20565 g
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Dear Mr..MacDonald:
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In reference to your letter dated January 30, 1987, concerning the GE-1600 (C of C 9044) casks, we have taken our 1-13G (C of C 9044) and 1-13C (C of C 9081) casks out of service.
This letter is being submitted in accordance with 10 CFR 71.95.
The following examinations were performed on the 1-13C cask:
1.
Dye penetrant examination of all containment welds on the cask body and the cask cavity.
2.
Soap bubble leak test of the sealed cask at 5 psig for three (3) hours.
3.
Pressure decay test of the sealed cask cavity pressurized to 5 psig for three (3) hours.
The leak tests were successfully passed indicating that the sealed cask is leak tight.
Several small (rounded) dye penetrant indications were observed.
These were a maximum of 1/8 inch diameter and 1/8 inch deep.
(As such they are typically classified as non-reportable by the ASME Code).
These indications.were ground out to a maximum depth of 1/8 inch and retested by dye penetrant so that no further indications were found. The " ground-out" areas were then weld repaired to ensure a smooth surface. All exterior welds on the 1-13C have now been inspected and are acceptable..As noted previously, the 1-13C is efmilar, but has a different mechanical design than the 1-13G.
The i
testing was performed to ensure the containment and structural adequacy of j
this package. We also wanted to ensure that there were no generic problems.
j As such, we are confident that this cask. meets all the C.of C requirements 1
(C of C 9081) and request that it be allowed back into active service.
i Due to shop space limitations, we have been delayed in testing the 1-13G I
cask. A comparable testing program to that performed on the 1-13C has just 4
been initiated. We will appraise you of the results following completion of I
the 1-13G testing.
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If you have any questions, feel free to contact us.
g cylD44 Sincerely, -
Al o
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DocmED CHEM-NUCLEAR SYSTEMS, INC.
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S$o M$bCN William B. House WBH:nhs;c3 D0002 m u C/
Director, Licensing (803) 256-045o
- Telex: 216947
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