https://phys.org/news/2019-03-ethiopian-airlines.html

There is speculation that the software could have contributed to the crash, which killed 157 people, as well as to the crash of another Boeing 737 Max, a Lion Air flight, in October.

Regulators say both planes had similar erratic flight paths shortly after take-off, an important part of their decision to ground the roughly 370 Max planes around the world.