While MCAS became widely known for its role on the 737 MAX, the system had already appeared on another Boeing aircraft before ...

The American Airlines manual’s two-page description of trim controls ... the anti-stall system activates. MCAS then tilts the smaller wing (horizontal stabilizer) in the tail of the aircraft ...

The pilots disabled the stabilizer system and "continued flight with manual trim without auto-pilot until the end of flight," according to the preliminary report. Lion Air sent a reminder to its ...

Boeing instructed pilots to deactivate the system using procedures already in place for dealing with runaway stabilizer control systems in other 737 aircraft—flipping two stabilizer trim ...

the Ethiopian Airlines pilots had known MCAS existed and they had followed Boeing’s instructions to disable it by turning off the electric trim system that controlled the horizontal stabilizer.

“[But] it would be preferable for the system to utilize three ... meaning pilots would need to rotate a MAX’s trim wheel about 60 times to bring the stabilizer to neutral.

Anti-stall system triggered Peter Lemme ... Beside their seats a large wheel, called the stabilizer trim wheel, which rotates as the horizontal tail swivels, would have been spinning fast and ...

"It's sole function is to trim the stabilizer nose down," according to the system's description to pilots, who were learning about it for the first time this week. So, the way the system corrects ...