Seconds before LaGuardia crash, controller cleared the fire truck to cross the runway, NTSB says

NEW YORK (AP) — One of only two air traffic controllers on duty at LaGuardia Airport cleared a fire truck to cross a runway just 12 seconds before an Air Canada flight touched down, leaving little time to avoid the collision that killed both pilots, federal investigators said Tuesday.

The National Transportation Safety Board is working to determine which of the airport’s many layers of safety precautions failed and allowed the fire truck onto the runway Sunday night.

Among the areas...