Ethiopian Airlines crash: Boeing reduces 737 production

First preliminary report of Ethiopian Airlines flight ET302 released

Family of American woman sues Boeing, Ethiopian Airlines over 737 Max crash

Investigators are examining two crashes that killed all 346 aboard the 737 Max 8 jets operated by Indonesia's Lion Air and Ethiopian Airlines.

The MCAS (Maneuvering Characteristics Augmentation System) is suspected of being responsible both for the Ethiopian Airlines crash and one of a 737 MAX operated by Indonesian airline Lion Air in October a year ago, in which all 189 passengers and crew were killed.

The report recommends "the aircraft flight control system shall be reviewed by the manufacturer", Dagmawit said. Thursday's revelations raise questions about repeated assertions by Boeing and USA regulators that pilots could regain control in some emergencies by following steps that include turning off an anti-stall system designed specifically for the Max, known by its acronym, MCAS. "We have the responsibility to eliminate this risk, and we know how to do it", the statement from Chief Executive Officer Dennis Muilenburg said. "This again is the case here, and we know we can break one of those chain links in these two accidents".

Boeing is now working on a software update for the 737 Max's control system that will dial back the intrusiveness of MCAS.

"We're nearing completion and anticipate its certification and implementation on the 737 Max fleet worldwide in the weeks ahead", he added.

In a separate statement, Boeing Commercial Airplanes President and CEO Kevin McAllister said the company would "carefully review" the preliminary report from Ethiopian investigators, "and will take any and all additional steps necessary to enhance the safety of our aircraft".

This comes after reports suggested pilots in both incidents followed Boeing's safety procedures before they crashed.

Boeing is already working on MCAS, found on all 737 MAX aircraft, software update since Lion Air flight 610 crash in October 2018.

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The Ethiopian Airlines flight was headed for Nairobi on a clear morning on March 10 when it plummeted nose-first into a field outside Addis Ababa just minutes after take-off.

The preliminary AIB report is available in full here.

The Ethiopian report does not specifically name that system, but its findings seem to indicate that the system pushed the plane into a dive fueled by erroneous angle of attack sensor readings.

The agency said in a statement that the investigation is still in its early stages.

The report cites one of the main causes of the accident as the so called Manoeuvring Characteristics Augmentation System (MCAS), which activated multiple times during the flight's short duration, before it crashed killing all 157 passengers and crew on board.

The 737 Max, which is Boeing's new flagship plane, has been grounded by aviation authorities around the world. But they turned the system back on 32 seconds before hitting the ground and tried unsuccessfully to use it to point the nose up. At the same time, pilots will always be able to override MCAS and control the aircraft manually, Boeing says.

"Today was a day for us to prove wrong all the speculators with false allegations", he said, adding that the airline will remain partners with Boeing.

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