A regional jet carrying 64 people collided with an Army Black Hawk helicopter. Reagan National Airport grounded all flights.

Preliminary data from the deadliest U.S. aviation accident in nearly 25 years showed conflicting readings about the altitudes of an airliner and Army helicopter when they collided near Washington.

Sixty passengers and four crew members from the plane and three Black Hawk helicopter personnel were killed, and a recovery ...

Transportation safety investigators are seeking to determine if the pilots of the American Airlines plane detected danger ...

There were 64 passengers aboard the plane, and three Army soldiers in the helicopter, according to officials. Here's a look ...

Questions remain over the mid-air collision between a jet, which was carrying 64 people, including the crew, and a military helicopter carrying three soldiers ...

The crash of the Jet Rescue Air Ambulance, which operated the Learjet 55, comes two days after the country’s deadliest aviation disaster in almost a quarter century, in Washington, D.C.

Seven people died and nearly two dozen more were injured when a medical jet crashed in northeast Philadelphia on Friday night ...

Here are some of the reasons why aircraft can catastrophically veer toward the ground like a medevac jet did in Philadelphia ...

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Officials in Philadelphia say seven people are now known to have died after a medical plane carrying a sick child crashed on ...

At least six people were rushed to hospital after a mid-size air ambulance plane crashed shortly after take-off on Friday.