Both engines were shut off and there was a cockpit struggle before a China Eastern Airlines jet slammed into a mountain in 2022, killing all 132 people aboard, newly released data released by American investigators suggests. In response to a public records request, the National Transportation Safety Board released a report recently on what the Boeing 737-800’s flight data recorder revealed. The NTSB became involved in the Chinese investigation because the plane and engines were made by American companies and the U.S. investigators are regarded as the world’s leading experts on analyzing black boxes after a crash. The report offers the best explanation yet about what caused the crash and confirms news stories at the time suggesting the crew may have played a role after Chinese investigators said they did not immediately find a problem with the plane.…