Air traffic control facilities at the city’s two airports, plus two other regional centers, failed to meet a working group’s target staffing levels, according to the most recent published numbers.

One person has died and three others were injured after an aircraft collision on the runway Monday afternoon at the Scottsdale Airport.

A Learjet 35A veered off the runway after landing at Scottsdale Airport and crashed into a Gulfstream 2100 business jet, ...