Boeing unveiled changes to its 737 MAX to regain confidence

The company has gathered hundreds of journalists, pilots and airline executives at its headquarters. Renton, USA for show the changes in your MCAS stabilization system, allegedly participated in recent attacks in Ethiopia and Indonesia, in an attempt to regain self-confidence.

"We will do everything tomake sure that such accidents do not happen againBoeing's vice president of product strategy, Mike Sinnet, told reporters.

A little later, Dan Elwell, acting president of the US Federal Aviation Agency (FAA), should explain to US senators why your agency took so long to ban flights of the Boeing 737 MAX after the accident in which 157 people died on 10 March in Ethiopia.

This delay has raised suspicions about collusion between the US agency and Boeing, especially after the Chinese and European authorities decided to quickly ban theft of these aircraft, because of the similarities between the accident in Ethiopia and that occurred October 29 in the Java Sea.

The pilot takes control

Boeing tries to convince that the Corrected version of the stabilization system The MCAS of the 737 MAX, implicated for its alleged liability in accidents, is now operational.

The intervention of the system will be more transparent for the crew, and the drivers will be able to deactivate it more easily in case of problem, explained Boeing, who was going to introduce the new MCAS to professionals this Wednesday to have their opinion on the changes.

According to the company, the new version of the program has undergone "hundreds of hours of badysis, laboratory tests, checks in a simulator and two test flights", including one with FAA representatives on board.

The goal is "reduce the workload of the crew in abnormal situations and prevents the MCAS from activating it when it receives false data"Boeing said.

The FAA and other regulators still need to certify these changessaid the company.

Boeing also plans to better train pilots in management MCAS and the 737 MAX, whose behavior has changed a lot because of changes to the engines.

Supervision and verification

The FAA, who had delegated part of the certification work of the 737 MAX at Boeing, "was directly involved"In the approval of MCAS, Etwell will badert in front of Congress, according to his speech at which the news agency had access AFP.

The FAA chief will admit, however, that in the face of increasingly complex systems, his agency is focusing "in terms of supervision must change"

At another hearing held Wednesday morning, US Secretary of Transportation, Elaine Chao, worried about "any allegation that too close relations with any business"

According to the first elements of the investigation into the accident in the Java Sea, one of the probes in the plane broke down but he continued to send erroneous information to the flight systems, including the MCAS.

In the new version of the program, the pilot will be able to see that the MCAS no longer works thanks to a light warning systema, which indicates that the two sensors of the device emit conflicting data.

Boeing informed airlines that have acquired 737 MAX that could order this option for free. This will be installed later, when he receives the approval of the authorities.

Meanwhile, the immobilization of the fleet has a significant cost. The American company Southwest Airlines down on Wednesday its forecast of first-quarter revenue, due to flight cancellations related to the ban of the 737 MAX, model that has the largest number in the world.