The audio indicates that air traffic controllers tried to warn the Army helicopter about a nearby Canadair Regional Jet.

WASHINGTON—Just after 8:47 p.m. on Wednesday, an air-traffic controller at Reagan National Airport relayed a seemingly ordinary inquiry and instruction: “PAT25, do you have the CRJ in sight?” he asked a U.

WUSA9 spoke with Todd Yeary, who worked in air traffic control in Chicago on 9/11, about what it is like to communicate with aircraft.

The plane, which took off from Wichita, Kan., with 64 people on board, was landing at Reagan National – traveling north toward Runway 33.

Sixty-seven people died in a collision between a Bombardier CRJ700 regional jet operated by PSA Airlines and a military Black Hawk helicopter.

Air traffic control received no response from a military Black Hawk helicopter seconds before colliding with an American Airlines flight from Wichita to Washington, D.C.

Sixty passengers and four crew members from the plane and three Black Hawk helicopter personnel are feared dead as a recovery mission is underway.

If San Carlos Airport loses its air traffic controllers, and air traffic towers are forced to go unmanned, it could create safety issues.

President’s latest intervention in the investigation into the disaster comes as questions grow about air safety in the US capital

Divers return to the Potomac River as part of the recovery after the United States’ deadliest aviation disaster in almost a quarter century

More victims have been named following the mid-air collision between an American Airlines passenger jet and a military helicopter. Details are also emerging of the events around the crash - including that an air traffic controller was allowed to leave their shift early that night.