Collision occurred just after midnight on Sunday morning
Of 1,090 railway incidentslast year, 115 involved dangerous substances, including five accidents where the substances leaked.
Cessna aircraft lost radar contact shortly after take-off from Kelowna airport.
TSB investigation determines the derailment caused by excessive truck hunting on the empty centre beam bulkhead flat car.
Report says pipeline had a crack that formed when it was built more than 50 years ago.
NEB reports gas has been shut off and is reporting no injuries.
TSB says trains have already been ordered to travel slowly in the area due to track maintenance issues.
New standards would require the cars to have a layer of thermal protection and thicker steel walls.
Transport investigator is urging Transport Canada to quickly introduce enhanced standards to reduce the risk of spills.
Blasts were much more intense than what would be expected from the petroleum product.
Recommendations include ensuring tank cars moving crude oil won’t easily rupture.
Transportation Safety Board finds welding technique increases the chances of defects.