Why an anti-collision system might not have prevented DCA plane crash
Briefly

The crash of American Eagle Flight 5342 has renewed attention on the Traffic Alert and Collision Avoidance System (TCAS), designed to prevent midair collisions. Implemented by the FAA in 1993 for large airliners, TCAS alerts pilots of nearby aircraft and suggests maneuvers to avoid collisions. Despite its success in preventing crashes among commercial planes equipped with TCAS, the system’s limitations are apparent with military helicopters like the Black Hawk, which lack this technology, raising concerns about overall air safety.
The TCAS technology has significantly improved aviation safety since it was made mandatory, preventing midair collisions between equipped aircraft.
Despite the effectiveness of TCAS, certain aircraft, like military helicopters, may not be equipped with this life-saving technology, raising safety concerns.
Read at Washington Post
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