Incorrect altitude readings on the Army helicopter that collided with a passenger plane over Washington, D.C., in January ...

The details came out of the first day of National Transportation Safety Board hearings in Washington, where investigators aim ...

The head of the NTSB criticized U.S. officials for failing to act before the collision of a U.S. Army helicopter with an American Airlines jet.

According to the NTSB's investigation, the military helicopter had a faulty altimeter, which contributed to the collision ...