The US Army has grounded all aircraft except those on "critical missions" after two recent fatal mid-air crashes. The "aviation stand down" order announced on Friday comes a day after two Apache ...

The crew of the Army Black Hawk helicopter involved in the deadly collision with a jetliner had thousands of hours of flight ...

Wednesday’s deadly collision between an American Airlines flight and a military helicopter outside Washington, D.C., followed the Army’s highest rate of flight mishaps in more than a decade.