The shocking Boeing 737 Max 9 incident raises questions about deeper problems

On January 5, the door plug of a commercial Boeing 737 Max 9 came off as the plane was climbing, opening a large hole on the side of the plane, alarming passengers onboard, and raising new questions about flight safety.
The shocking incident — scary on its own — kicked off what has turned out to be a rough 2024 so far for Boeing. Specifically, it drew fresh scrutiny to the Boeing 737…