The Delta aircraft received an “onboard alert” that another aircraft was nearby, and air traffic controllers issued ...

According to a preliminary report, the Delta Air Lines plane that landed belly-up at Toronto’s Pearson International Airport last month was descending at a high rate of speed as its landing gear ...

“Affirmative,” a controller responded. The alert received inside the Delta flight deck is called a “resolution advisory,” which warns pilots to make maneuvers to avoid dangerous flight path ...