ML20040F738

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Updates Info Re Unusual Markings on 15-160B Cask Lid Seating Surface.Steel Trough Bottom Had Rusted & Was Replaced.Gaskets,Lid & Cask Sealing Surfaces Not Involved
ML20040F738
Person / Time
Site: 07106144
Issue date: 01/08/1982
From: Marsh C
CHEM-NUCLEAR SYSTEMS, INC.
To: Jennifer Davis
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
Shared Package
ML20040F739 List:
References
20146, NUDOCS 8202100241
Download: ML20040F738 (1)


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CHEM-NUCLEAR SYSTEMS INC.

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P.O. Box 1866 e Benevue, Washington 98009 e (206) 827 0711

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Mr. John G. Davis, Director

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Washington, D. C. 20555 U

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RE: CNSI Letter dated 7.24.81 (attached)

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Dear Mr. Davis:

Referenced letter reported " unusual markings on the lid seating surface" had been discovered during routine unloading of the 15-160B cask at Barnwell.

A thorough inspection revealed that this was not a proper description of the problem area. The 14 gauge steel trough bottom shown in the attached figure is the area inspected and subsequently replaced. This piece of sheet metal had rusted. The gaskets, lid and cask sealing surfaces were not involved.

Quality Assurance inspections after the repairs were completed verified the gaskets and seating surfaces met the required ccnditions as specified in the certificate of compliance.

We are convinced that there was no reduction in the effectiveness of the package during its use. The 15-160B shipping cask has been returned to service.

Sincerely, CHEM-NUCLEAR SYSTEMS, INC.

/h JAN Chryl A. Marsh Licensing Coordinator CAM:slj

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,_ nM. j' h Enclosures - CNSI Letter dated 7/24/81 Drawing of 15-1608 l

cc: Charles E. MacDonald/NRC g

8202100241 820108 PDR ADOCK 07106144 C

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