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Message ID: 2680     Entry time: Thursday, September 12, 2024, 14:12
Author: Adam Newsome 
Category: Waste Package/Ship 
Type: Development 
Module:  
Target/Number: SiC#44 
Subject: Failed waste emplacement at CNL: Flask #22, Pail 275 (SiC#44) 

On 2024-09-12, CNL reported difficulty with lowering Pail 275 from F-308 flask #22 into their tile hole. The four other pails associated with this shipment were successfully emplaced. It is suspected that the issue was related to a kink in the lowering cable, causing a jam during lowering. This was observed approximately 1 year ago.

Discussions with CNL to learn more about the root case are ongoing, and this e-log will be updated when more information is learned. It is expected that this flask will be shipped back to TRIUMF and the pail will need to be repacked.

 

Update 2024-09-12: email from A. Swan at CNL: "4 of the 5 flask were emplaced successfully with F308 #22 SiC#44 having an unsuccessful pull test and left within the flask."
This is the extent of the information they have provided and is not sufficiently helpful to determine what the issue is.

 

Updated 2024-10-03: an investigation was performed (work permit C2024-09-26-10). It was determined that the root cause of the issue is attributed to an assembly error - the cable was incorrectly routed through the holder part. See attached report for full details.

 

Attachment 1: Report_on_Inspection_of_Pail_275_on_2024-10-03.pdf  818 kB  Uploaded Thursday, October 03, 2024, 15:43  | Show | Show all
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