At least five pilots have complained earlier in the US about problems with the control of a Boeing 737 MAX 8 during crucial moments in flight.
Some of those problems are similar to the probable cause of the crash with such a device in Indonesia in October. The pilots had difficulty keeping the nose of the device in the right direction due to problems with the so-called anti-stall system, according to American media reports.
The pilots complained to a national platform where they can report irregularities without consequences for their jobs. One of the captains reported that within a few seconds the nose of his device went down so fast that the alarm went off.
A Boeing 737 MAX 8 crashed in Ethiopia last Sunday, killing all 157 passengers.