T he Boeing 737 MAX has long been the most important narrowbody aircraft put on the market by manufacturer Boeing, but the type has certainly faced its fair share of challenges. Originally ...

The Boeing 737 MAX traces back to the first generation of 737s in the 1960s. It has been the best-selling commercial passenger jet of all time by cumulative sales, although that is now changing.

Boeing's 737 was great until the Max model started falling in sales, safety regulations, and out of the sky, literally. Here's why it's so troublesome.