ADDIS ABABA, Ethiopia — Just two minutes after takeoff, the captain of the doomed Ethiopian Airlines Flight 302 said the plane was having problems. Pilots then began having trouble controlling the aircraft.

In the plane’s short and fatal flight, pilots initially followed safety procedures recommended by Boeing, performing actions on the emergency checklist, including cutting off electricity to an automatic system that was pushing the nose down. But they were still unable to prevent the jet from crashing, according to an initial report by Ethiopian investigators.

About six minutes after takeoff, the plane went into a fatal dive that killed all 157 people on board.

The report, released Thursday, laid out a timeline of the flight based on analysis from 18 Ethiopian and international investigators and information from the jet’s flight data recorder and cockpit voice recorder. The investigators’ initial report was released several hours after a news conference held by Ethiopia’s minister of transportation.