The crash seems to have resulted from a series of human errors that cascaded to cause a freak accident. This past week has been catastrophic for air travel and safety. A Bombardier CRJ700 regional jet operated by PSA Airline,

An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter crashed into the Potomac River after a mid-air collision near Reagan Washington National Airport on Wednesday night, officials said. Below are the details of the aircraft involved:

Army Black Hawk helicopter that collided with an American Eagle flight over the Potomac River​ late last month was flying with a safety system turned off, Sen. Ted Cruz told reporters after a briefing from the FAA and NTSB.