Investigators seek cause of Amtrak crash that injured 55

HALIFAX, NC (AP) — State and federal investigators are piecing together how an oversized tractor-trailer came to be stopped on the tracks where an Amtrak passenger train derailed this week in North Carolina and why there was apparently no warning given to the engineer.

Among the evidence will be the locomotive’s “black box” recovered at the scene and the special state permit that allowed the trucking company to exceed length and weight limits.

The 127-ton tractor-trailer was about three times the size and weight of a standard 18-wheeler, so huge it required a Highway Patrol escort, and so tall it had to take back roads to avoid some Interstate overpasses.

The route taken by the truck was approved in advance by the North Carolina Department of Transportation, including the fateful left-hand turn at the railroad crossing.

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