Hours of testimony and thousands of pages of documents made public Wednesday by federal accident investigators probing the deadliest U.S. airline crash in decades painted a picture of the airspace in ...

Flight instruments probably led the Black Hawk crew to believe the helicopter was lower than it actually was before the ...

US Army Black Hawk near Washington found a key instrument on the helicopter was displaying inaccurate altitude data that ...

The National Transportation Safety Board is holding hearings in Washington, D.C., this week to try to figure out what caused ...

A National Transportation Safety Board hearing revealed that the U.S. Army was aware of altitude discrepancies on Black Hawk ...

New documents from investigators reveal muffled communications during the final minutes before the helicopter collided with a ...

Pilots of an Army helicopter that collided with a passenger jet near DC airport didn't know how high they were flying because of altimeter discrepancies.

January 29 mid-air collision between passenger jet and Black Hawk helicopter near Reagan National Airport in Washington, D.C. left 67 dead ...

Dan Cooper with Sikorsky helicopters said that when the Black Hawk helicopter involved in the crash was designed in the 1970s ...