The Traffic Alert and Collision Avoidance System is meant to act as the last defence against mid-air collisions but has its ...

The crash late Wednesday of American Eagle Flight 5342 near Reagan National Airport has brought fresh attention to a technology known as a Traffic Alert and Collision Avoidance System, or TCAS ...

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An investigation is underway to identify the causes of the crash, but experts are already trying to pinpoint what happened with the American Airlines flight's TCAS system. Here's what we know ...

TCAS alerts pilots about a possible collision and issues a resolution advisory. (Photo: Pexels) Mid-air collisions of aircraft should have been a thing of the past with the technology that exists ...

A 3D rendering shows the approximate altitude and paths of the plane and helicopter moments before the collision.

Despite these safeguards, the two aircraft still collided. One of the biggest questions arising from the crash is whether TCAS, a system designed to prevent midair collisions such as this one ...

The role of TCAS—or Traffic Alert and Collision Avoidance Systems—is likely to be a key question for investigators as they try to determine the accident’s cause.