According to the instructions, they turned off the aircraft stabilization system.
The pilots driving the Boeing 737 MAX of Ethiopian Airlines, which crashed in March under Addis Ababa, followed the emergency instructions from the aircraft manufacturer, but still could not regain control of it. About this, as reported byThe Wall Street Journal, according to a preliminary report on the investigation of the disaster, which will be published later this week.
According to the instructions, the pilots turned off the aircraft stabilization system (MCAS), but this did not help level the aircraft, and they activated it again. Earlier, Boeing said that the pilots could have avoided a catastrophe if, in accordance with the instructions, they turned off the MCAS.
According to the authorities, it was this system that could have caused the crash of an Indonesian Lion Air plane in October 2018. It is necessary in order to stabilize the aircraft after takeoff: if the nose of the liner rises too steeply, the system automatically lowers it a little. However, according to experts, it can drop the nose of the aircraft even when it is not required. After the crash in Ethiopia, Boeing has developed an update that should prevent MCAS from failing.
March 10 Boeing 737 MAX 8 Ethiopian Airlines airlines operating flights from Addis Ababa to Nairobi, suffered a crash. On board were 157 people, they all died. After the disaster, some countries, including Russia, have banned the use of aircraft of this model.