Nearly 70 people are believed to have died in the crash, which happened when an American Airlines regional jet collided with a Black Hawk Army helicopter.
The National Transportation Safety Board typically releases a preliminary report within a few weeks of an accident.
A deadly midair collision between an American Airlines jet and an Army helicopter near the nation’s capital is bringing ...
A jet with 60 passengers and four crew members collided with an Army helicopter while preparing to land at Ronald Reagan ...