Boeing has admitted that a key sensor malfunctioned on two of its 737 Max 8 planes which crashed, killing all on board in separate incidents. It came after preliminary findings from an investigation into a deadly crash in Ethiopia last month drew the strongest link yet between that incident and an October crash off the coast of Indonesia.
Both aircraft had an automated system that pushed down the nose when sensor readings detected the danger of an aerodynamic stall. A preliminary report on Thursday, based on flight data and cockpit voice recorders on the Ethiopian Airlines jet which crashed, showed the faulty sensor sparked a series of events that caused the pilots to lose control of the plane. All 157 who were on board died.