Ethiopian crew followed procedures: first official crash report

Posted April 06, 2019

He acknowledged for the first time that in certain unsafe situations, the Maneuvering Characteristics Augmentation System, known as MCAS, can cause pilots to lose control of an aircraft in response to erroneous data from the plane's external sensors.

Moges recommended that the plane's flight control system be reviewed by the manufacturer.

The latest decision comes the day after a preliminary report on the Ethiopian Airlines tragedy showed that the pilots of that plane performed all of the aircraft manufacturer's procedures, but were unable to control the jet before it crashed. Thursday's revelations raise questions about repeated assertions by Boeing and United States 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.

On behalf of Boeing, Muilenburg said, "All of us feel the huge gravity of these events across our company and recognize the devastation of the families and friends of the loved ones who perished". "We own it and we know how to do it", the statement continues.

He said Boeing would carefully review the preliminary report and take "any and all" additional steps necessary to enhance the safety of Boeing aircraft.

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The Boeing Company issued an apology Thursday and, for the first time, acknowledged its automatic flight control system played a role in the two recent plane crashes in Indonesia and Ethiopia that killed everyone on board.

Boeing says in the statement that it will issue a software update to its 737 MAX fleet worldwide to eliminate the possibility of an unintended MCAS evacuation in the future.

"This accident was not survivable", the report read.

On Thursday, the family of Samyo Stumo, a 24-year-old woman who died in the Ethiopian Airlines crash, filed a federal lawsuit in the US District Court in Chicago against Boeing and Rosemount Aerospace Inc., the Delaware-based company that made the jetliner's MCAS system.

A new 33-page report released today indicates the pilots turned off the power to the horizontal stabiliser system approximately two minutes and 35 seconds into the flight.

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Chicago-based Boeing, which is also the target of lawsuits over the October 29 Indonesia crash, has been working on a software fix and new training guidelines for the Max.

The crash killed all 157 people on board and led to a global grounding of 737 MAX jets and scrutiny of the certification process for the Boeing plane.

"We thank Ethiopia's Accident Investigation Bureau for its hard work and continuing efforts".

The Wall Street Journal reported on Wednesday that pilots had shut off the anti-stall system, but switched it back on because they could not regain control, citing people briefed on the preliminary findings.

"This is a challenging time for our industry, and we are working with our customer Boeing to support them as they focus on returning the MAX to service". Upon certifying the update, flight crews will now have the ability to override MCAS and manually control the airplane.

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