CN probe finds thermal rail misalignment behind Repentigny derailment

• CN released preliminary findings from its investigation into the July 5 derailment in Repentigny, Quebec, involving 46 railcars.
• The review points to a thermal rail misalignment tied to misapplication of rail distressing standards during spring 2026 crossing work.
• CN does not see speed, train handling, or mechanical issues as causes at this stage.
• Authorities inspected the track; train movements are authorized at restricted speed while CN runs additional inspections.
• The Transportation Safety Board of Canada investigation remains ongoing; CN is limiting further comment on causation.

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