A United Airlines flight out of Dulles International Airport made an emergency landing after one of the plane's engines failed during takeoff on Saturday afternoon. One of the engines of the Boeing 777-200ER suddenly failed at takeoff around 12:20 p.m., the FAA said, producing sparks and smoke. United Airlines Flight 803, en route to Tokyo, Japan, then landed safely back at Dulles, the FAA said. There are no reports of injuries. No parts fell off of the plane, despite social media rumors. As the