The NTSB concluded three days of investigative hearings into the collision between an Army helicopter and a passenger plane ...

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

Air traffic controller failed to notify commercial plane crew about approaching Army helicopter before Washington D.C.

A long list of things went wrong in January and contributed to the collision between an Army helicopter and an American ...

At their closest points, helicopters and planes routinely flew within 75 feet near the airport, according to the NTSB.

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

Investigators found the helicopter was flying higher than it should have been over the Potomac River in Washington. Its ...

Board Chairwoman Jennifer Homendy has urged the Federal Aviation Administration to improve safety measures, pointing to ...

The NTSB showed the harrowing video of the Jan. 29 crash over the Potomac River as the agency kicked off a three-day hearing ...

The communications between pilots and air traffic control were laid out in a visual timeline in Day One of the NTSB ...