During certification, MCAS was eventually given so much control authority that pilots could not overpower it (trim controls the full horizontal tail, and elevator only a tab on it. At higher speeds, elevator cannot over power the tail)

• During certification, MCAS was eventually given so much control authority that pilots could not overpower it (trim controls the full horizontal tail, and elevator only a tab on it. At higher speeds, elevator cannot over power the tail)
• A single AOA failure would cause the plane to pitch down to a crash
• The only way to recover was to turn on the autopilot, something no pilot should never do in an emergency, or pull the correct fuse quickly enough
• But pilots were not told about MCAS, how it worked, how it could fail, or how to disable it
• End results: 2 planes crashed with everyone dead before all planes were grounded.

737 Max, how many things went wrong?