Two previous days of testimony underscored a number of factors that likely contributed to the collision that left all 67 ...

The National Transportation Safety Board will question witnesses Thursday about air traffic control training, a key part of ...

Investigators have found that a helicopter involved in a deadly crash with a passenger plane over Washington was flying above ...

The Army helicopter that collided with a plane over D.C. in January had incorrect altitude readings, contributing to the ...

The first of the National Transportation Safety Board’s three days of investigative hearings is underway to help determine ...

The head of the National Transportation Safety Board sharply criticized U.S. officials for failing to act before the January ...

The NTSB revealed that the Black Hawk helicopter may not have known its true altitude at a hearing.

NTSB members became frustrated at the U.S. Army's timeline to fix altimeter issues during the first hearing on the fatal Jan.

Federal investigators are hearing concerns about military helicopter traffic over Washington, especially at night ...