WASHINGTON, June 24 (Xinhua) -- U.S. federal accident investigators on Tuesday concluded that "mismanagement" by the pilots of Asiana Flight 214 caused the plane to crash while landing in San Francisco last year.
The U.S. National Transportation Safety Board said that there was confusion over whether one of the airliner's key controls was maintaining airspeed.
According to NTSB, the complexity of the Boeing 777's autothrottle, as well as materials provided by the aircraft maker that failed to make clear when controls don't automatically maintain speed, contributed to the accident on July 6 last year, which killed three passengers and injured about 200 others.
Meanwhile, the South Korea-based airline's pilot training program was also faulted by the NTSB investigators.
The Boeing 777, with 307 people on board, crashed and burst into flames during its landing at San Francisco International Airport.