Assertion: siding's rail | /r/CreatedBy | defective weld
Facets:
Source sentences:
text: The other train derailed at a broken rail caused by a defective weld that was not fixed in time, despite being repeatedly reported by train crews; the report by the Transportation Safety Board of Canada called into question CN's quality assurance program for rail welds as well as the lack of detection equipment for defective wheels.
text: The other train derailed at a broken rail caused by a defective weld that was not fixed in time, despite being repeatedly reported by train crews; the report by the Transportation Safety Board of Canada called into question CN's quality assurance program for rail welds as well as the lack of detection equipment for defective wheels.