Black boxes explained: The critical role the devices play in aviation
NBC News’ Zinhle Essamuah takes a look at how black boxes work and who invented them in light of the recent mid-air collision ...
DC plane crash updates: Helicopter had advanced tracking system turned off, lawmaker says
The U.S. Army helicopter that collided with an passenger jet near Washington, D.C., had an advanced surveillance system ...
Black Hawk helicopter had important safety system turned off during collision with American Airlines jet, senator says
A key safety system was turned off on the US Army helicopter that collided with an American Airlines regional jet last week ...