A leading theory is that the Lion Air flight crashed because the anti-stall software received erroneous data, forcing the plane into a nose-dive. In simulations using the current software, pilots were able to disable the anti-stall software using existing procedures, and land the airplane safely. The simulations using the updated software required less intervention by the pilots. It will take data from both angle of attack sensors, instead of just one. On Sunday, Boeing also issued a statement on the equipment used to measure and display the plane’s angle of attack.

Source: New York Times March 24, 2019 23:48 UTC