Upon exiting the FSR, while having to negotiate a road obstruction, this unit had to make a sharp left-turn. Turning the cab into the West-bound lane, the driver felt something was not right – “like something was dragging”. Immediately after the unit completely rolled over.
Investigation revealed that the reach broke within the trailer body housing. This action caused the bunk slipper to drop below the bolster plate, thus not allowing the trailer to track in its proper path, causing the trailer and truck to roll over.
Fracture lines within the reach showed the fresh break on the drivers-side of the reach, however it also showed three other fracture lines that were of an old nature.
Erik Kok, Interfor Adams Lake Division. firstname.lastname@example.org