A United Airlines flight traveling from Washington Dulles International Airport made an emergency landing last month after the pilot declared a mayday call shortly after takeoff due to suspected engine failure.

United flight 108, bound for Munich, Germany, was forced to return to Dulles on July 25 “to address a mechanical issue,” the airline told CNN.

The plane, a Boeing 787, was carrying 219 passengers and 11 crew members, the airline said.

Minutes into its ascent and at nearly 5,000 feet, the pilot told air traffic control, “Engine failure, left engine, United 108 declaring an emergency. Mayday, mayday, mayday,” according to recorded air traffic control audio.

An air traffic controller asked the pilot, “Are you able to make your way back to the field at this time” by turning right. “There’s nobody between you and the field,” the controller said.