The crashed Boeing 737 MAX 8 did not have a security system sold in addition by the American company.

The Boeing 737 MAX that crashed in Indonesia and Ethiopia, causing the death of 346 peoplethey were missing two Optional security mechanisms in part, could have helped their pilots avoid accidents, the newspaper reported The New York Times.

Boeing, who sells these systems more, decided to start including one of them as a standard after disasters, according to a source quoted by the newspaper. The company, for the moment, has not officially announced any move in this regard.

According to NYT, nor the Lion Air plane that fell last October on the Java Sea 13 minutes after taking off from Jakarta, nor that of Ethiopian Airlines that crashed on the 10th of this month just a few kilometers from Adis Ababa, from where it remained six minutes ago, they had these optional security systems, which they are not required by the authorities.

Although the causes of the accidents are still unknown, the experts stressed a software designed to improve security in the promotion phase and to a sensor failure which activates this mechanism as a possible motive, leading many countries to temporarily veto this Boeing model.

The article of NYT note that two systems sold as an option by the US company could have helped to prevent recent accidents.

One of them is an indicator of "the attack" which shows the measurements of the two sensors in question, while the other is an indicator "light of disagreement" which is activated if the measurements of these sensors do not match.

Boeing, which announced a software update, also plans to include the default "light disagreement" in all new 737 Max, according to a source told the newspaper. The "angle of attack" indicator, meanwhile, would continue to be something that airlines must order in addition.

According to experts quoted by the newspaper, both mechanisms are essential for security and very economical to install.

Aircraft manufacturers usually offer their customers a multitude of supplements that they can add to their aircraft, although they usually do not publish their prices.

According to other information published yesterday by the NYT, the pilot of the flight of Lion Air who crashed in October had consulted the technical manual of the aircraft while the aircraft was rushed to the sea, moment that was recorded in the l 39; audio recording of the cabin, found after the accident.

However, Soerjanto Tjahjono, director of the National Committee for Transport Safety (KNKT) of Indonesia, said today at a press conference in Jakarta that some of the details published by the media do not did not faithfully reflect the contents of the black box. .

The KNKT researcher, Nurcahyo Utomo, said the pilots had only panicked for a few seconds before crashing, but they refused to specify when they had revised the flight manual.

According to the preliminary investigation, the nose of the aircraft sank more than 20 times, a displacement that, according to experts, could have been caused by a sensor or software error mentioned above.

The researchers plan to release a final report on the accident in Indonesia in August or September.