![Adobe MAX 7 stylized](https://flightsafety.org/wp-content/uploads/2019/10/safetyregulation_oct19_featured.jpg)
The U.S. Federal Aviation Administration (FAA) fully understood Boeing’s safety assessments of new flight control software on the Boeing 737 MAX only after the first of two fatal crashes involving the airplane, a U.S. government oversight agency says. The software was cited for contributing to both crashes, which killed a total of 346 people.