Investigators are scratched To find out why a military helicopter and a passenger airplane collided in the Potomac River late Wednesday at Washington DC and dipped in 16 years, the first major US air crash in 16 years.
From known, the possibility of human error played a role, which raised questions about the chronic shortage of air traffic controllers and pilots. Officers can also be seen coordination between military and citizens Aviation,
An army UH-60 Black Hawk Helicopter clearly recorded a Bombardier CRJ-700 jet's tail to carry three soldiers, as it was less than one mile than landing at Reagan National Airport. The vivid remains of both aircraft covered a distance of a few hundred feet in shallow, icy river.
Passenger jets, which were operated by the American Airlines, were operated by the regional carrier PSA Airlines, there were 64 people on the board, and police boats have already recovered 27 bodies. The last aircraft tragedy of this deadly in the United States was a collagen air accident in the state of New York in 2009.
The helicopter may have flew from a military base near the airport. In a granular Video From the Kennedy Center, a small light, possibly the helicopter, the bright light of the aircraft can be seen further, both are flying less on the ground. Both collide in a huge explosion, divided into several burning pieces.
A few minutes before the arrival, Air Traffic Control asked the American Airlines flight whether it could land on a small runway on runway 33. The pilots said yes, apparently to switch the runway during their approach. Some people have surprised whether this change in the flight path could catch the Black Hawk of Guard.
But retired Air Force Brigadier General John Techrt told Newsnation television This should not have been the cause of an accident. “I think it is not an aggressive maneuver in a regional jet when they would have been asked to switch to the runway and motivate them to regenerate and surprise for black hawk,” he said.
Eighty percent of aviation accidents worldwide can be attributed to human error, and it is a prominent candidate in this case, Marco Chan, a former pilot, who is now head of pilot programs at Buckinghamshire New University, wired Told it.
“Probably the security protocol, playing human factors,” he says. “I don't like to conclude quickly. In general, globally, after the epidemic, while the passenger number is quite back, I do not think the workforce number has been caught in every aspect of aviation. ,
Air Traffic Control asked the helicopter if it had seen the aircraft, and was said to have “passing behind the CRJ”, in which Black Hawk was not on an immediate military mission. It is not known whether the helicopter responded or not.
Military flights sometimes work on different radio frequencies compared to passenger flights, so the driver of the passenger jet would not have heard the radio to the tower. Or there may have been a jam transmission: if more than one side on a channel is radio at the same time, it can prevent others from listening to the whole conversation.