Two accidents in 6 months. What should you know about the Boeing 737 Max?

(CNN) – Boeing said the 737 Max was the fastest ever sold, but one of the new automatic security features could play a role in the recent crash.

The aircraft is equipped with advanced technologies and a single gangway. More than 5,000 of them are solicited by hundreds of airlines around the world. Many of them in China and India.

The 737 aircraft has a long history. Since the launch of the first "Baby Boeing" equipped with two engines in 1967, it has become the best selling commercial airplane model in history.

The Max 8 version was launched in 2017 and can accommodate up to 200 passengers to provide airlines with greater range and better fuel economy than previous models.

Like other aircraft chains, Boeing has introduced new technology and new features in the 737 series, including the automatic safety system. In an interview, CNN aviation safety analyst David Sussie said: "This aircraft is equipped with a modern Vimt control on how the autopilot responds. the front of the aircraft is very high, it propels the pilot, even when the system is not many pilots are not used to that. "

In the case of the fall of the "Leon Air", Indonesian investigators claim that the pilots fought several times to invalidate the system before the deadly fall of the plane last October. The initial accident report indicated that disturbed sensors had brought the system to push the front and the plane over and over again. It is unclear why the pilots did not follow known procedures to shut down the system.

Now the fall, the second of the new plane, took place shortly after the flight from Addis Ababa to Nairobi. This raises questions about the design of the aircraft and what Boeing told the airlines.