The aircraft is facing yet another setback stemming from persistent TCAS issues.

Aircraft technology that has been crucial to making big midair collisions exceptionally rare in the U.S. was limited in helping avoid Wednesday’s deadly collision between a commercial jetliner and ...

Investigators believe the prime suspect behind the loss of transponder transmissions from the Embraer Legacy involved in the Amazonian mid-air collision to be accidental deactivation while the ...