The preliminary report, which was released Thursday, indicates the plane had “an erroneous angle of attack sensor input” that activated a flight control system called MCAS, for Maneuvering Characteristics Augmentation System, on the Boeing 737 Max 8, according to the release. The system pushes the 737 Max’s nose down when it determines that the aircraft is about to stall. This is similar to what investigators looking into the Lion Air crash found, according to the release.
On March 10, an Ethiopian Airlines flight crashed shortly after takeoff from Ethiopia’s capital, killing all 157 on board. It was the second deadly crash in recent months involving Boeing’s new 737 Max 8 plane.
Ethiopian authorities’ preliminary findings showed the plane’s crew followed Boeing guidance on how to operate the aircraft, including emergency procedures, but were unable to regain control, reported CBS News. (Editors’ Note: CNET is owned by CBS.)
Boeing 737 Max planes remain grounded around the world. Boeing on Thursday reiterated it’ll release a software update for the MCAS system and provide more training and education on the 737 Max.