How the FAA Decides When to Ground a Jet Like Boeing’s 737 MAX 8

When an Ethiopian Airlines Boeing 737 MAX 8 jet crashed shortly after takeoff from Addis Ababa on Sunday morning, killing all 157 people aboard, observers quickly noted that the circumstances resembled those of another flight. In October, Lion Air Flight 610 crashed into the Java Sea, killing all 181 passengers and eight crew. Both flights …