NASA/Goddard Space Flight Center Caption In this photo, pilots prepare for the take-off of NASA Global Hawk 872 at 7:11 a.m. EDT, Sept. 5, from the NASA's Wallops Flight Facility, Virginia.

Homendy said the Army Black Hawk crew was likely wearing night-vision goggles throughout the flight, which could have affected what they were able to see in the dark near a bright airport.

Investigators suspect the Army helicopter crew that collided with an American Airlines jet near Washington, D.C., might have ...

A preliminary analysis of the flight data and voice recorder on board a Black Hawk helicopter leading up to the collision with a commercial flight over Washington, DC, on January 29, indicated the ...

NTSB officials say they are yet unable to determine what altitude was shown on the Black Hawk’s altimeters because that data was not captured by the aircraft’s flight data recorder (FDR).