Aviation experts tell PEOPLE it's possible that the U.S. Army Black Hawk helicopter did not see the American Airlines passenger plane before the two collided on Wednesday, Jan. 29, killing 67 people.

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.

American Airlines plane crash in Washington, D.C., that killed all 67 involved, investigators have sought to understand the tragedy. Here’s everything to know so far.

Families of the victims in Wednesday’s catastrophic airline collision could receive a boost in lawsuits from high-profile ...

U.S. authorities restricted helicopter flights near Reagan Washington National Airport on Friday, after a midair collision ...

Reagan National Airport resumed flight operations Thursday morning after a tragic collision of a passenger plane and Army helicopter.

A timeline of the tragic collision between a commercial plane and a Black Hawk helicopter over the Potomac River, with ...

The Army helicopter and regional American Eagle jet that collided over Washington are both workhorse aircraft that operate around the world on a daily basis.

The father of 28-year-old PSA Airlines co-pilot Sam Lilley, who was killed in the deadly collision near Ronald Reagan ...

An Army Black Hawk helicopter collided with a regional jet near Ronald Reagan Washington National Airport on Wednesday evening, U.S. officials confirmed to ABC News.

An American Airlines flight crashed into a U.S. Army Black Hawk Helicopter over the Potomac River as it approached Ronald Reagan Washington National Airport.

The helicopter was part of the 12th Aviation Battalion which is on an operational pause following the collision. It will ...