The two air-traffic controllers were determined to have left their shifts early before an Air Canada Express plane collided with a fire truck at New York’s LaGuardia Airport in March.

Two LaGuardia Airport air traffic controllers in the control tower left work early the night an Air Canada Express flight collided with an airport fire truck on the runway,…

The March 22 collision between an Air Canada plane carrying 72 passengers and four crew and a fire truck on killed two pilots and seriously injured six others.