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 serious airport positioned a brief distance from downtown Washington, the White Home and the Pentagon.
The airspace is extraordinarily busy, with civilian and navy plane virtually consistently transferring within the space.
“I feel there are a number of speculations at this stage, and the investigation hasn’t actually begun,” Hassan Shahidi, chief government of the unbiased 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.
“Typically air site visitors controllers deal with one frequency. Typically they deal with two frequencies. Typically they deal with greater than two frequencies.
“That’s all depending on the state of affairs, on the site visitors stage, and the time of day. This was at evening, at 9pm, when the site visitors is subsiding.”