>>5610955 pb

>How Boeing's 737 Max went from bestseller to safety concern.

It's called the FTS or "Flight Termination System"

Can fly the plane into an airport (or presumably into the ground/water) and the pilots cannot override it.

https://www.corbettreport.com/how-to-steal-an-airplane-from-911-to-mh370/

https://en.wikipedia.org/wiki/Boeing_Honeywell_Uninterruptible_Autopilot