The collision occurred late night on Wednesday because the airliner got here into land after a routine flight from Wichita, Kansas.
Reagan Nationwide is a significant airport situated a brief distance from downtown Washington, the White Home and the Pentagon.
The airspace is extraordinarily busy, with civilian and navy plane virtually always transferring within the space.
“I feel there are quite a lot of speculations at this stage, and the investigation hasn’t actually begun,” Hassan Shahidi, chief government of the impartial Flight Security Basis, informed AFP.
“There are totally different shifts … that are available and are put along with the suitable workers to deal with the quantity of site visitors.
“Generally air site visitors controllers deal with one frequency. Generally they deal with two frequencies. Generally they deal with greater than two frequencies.
“That’s all depending on the scenario, on the site visitors stage, and the time of day. This was at night time, at 9pm, when the site visitors is subsiding.”