Canadian authorities with the Transportation Safety Board (TSB) are investigating the crash, with assistance from U.S. stakeholders and investigators. Providing support are the National Transportation Safety Board, the Federal Aviation Administration, Delta and Mitsubishi Heavy Industries, which owns the Bombardier jet program.
TSB Senior Investigator Ken Webster, speaking from beside the wrecked plane late Tuesday afternoon, said a team of more than 20 was conducting interviews and examining…

























