From CNN.

A fire truck involved in Sunday’s deadly collision with an Air Canada plane at New York’s LaGuardia Airport was not equipped with a transponder — technology that helps air traffic controllers identify and track vehicles on the airfield — the National Transportation Safety Board said Tuesday.

Also, the airport’s surface detection equipment – ASDE-X – didn’t generate an alert ahead of the collision “due to the close proximity of vehicles merging and unmerging near the runway,” which resulted “in the inability to create a track of high confidence,” NTSB chairwoman Jennifer Homendy said.

0:00 Only 2 ATC agents working at the time of the crash
2:52 The surface collision warning system failed
4:46 ‘This was far from a normal night’
7:47 What could the controller have done differently?
9:12 Why did the truck continue across the runway?

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