Ethiopian Airlines Crash: Pilots not to blame

Ethiopian Airlines Crash: Pilots not to blame

Ethiopian Airlines Crash: Pilots not to blame

The FAA said it is establishing a Joint Authorities Technical Review "to ensure the safety of the Boeing 737 Max" and scrutinise the anti-stall software that has been questioned in two fatal crashes since October.

"With the release of the preliminary report of the Ethiopian Airlines Flight 302 accident investigation, it's apparent that in both flights the Maneuvering Characteristics Augmentation System, known as MCAS, activated in response to erroneous angle of attack information", said Boeing chief executive Dennis Muilenburg.

He said investigators are going to be focussed far more on the interaction between software and pilots rather than mechanical issues in future. At the same time, pilots will always be able to override MCAS and control the aircraft manually, Boeing says.

The realisation of a second software problem explains why the timeline that Boeing projected publicly last week for getting hundreds of the aircraft airborne again has slipped, the officials said.

Data from the Ethiopian Airlines flight indicates the aircraft was flying nose-heavy and not in a "neutral" attitude when pilots hit the stabilizer cutout switches to disable the MCAS system, the preliminary report showed.

After several days of blame game between Ethiopian Airlines and giant aircraft manufacturer Boeing over the plane crash that claimed 157 lives, the latter has finally apologised to the families that lost their loved ones in the tragic accident.

Boeing was "blinded by its greed" and rushed the 737 Max 8 to market with the "knowledge and tacit approval" of the U.S. Federal Aviation Administration, while hiding defects in its automated flight-control system, Stumo's parents alleged in their lawsuit, filed in federal court in Chicago.

Ethiopian Airlines had on Thursday disclosed in its preliminary report, that the pilots of the ill-fated aircraft followed instructions that Boeing recommended and FAA approved emergency procedures to handle the most hard emergency situation created on the airplane.

The crash in Ethiopia resulted in the worldwide grounding of the 737 Max, the revamped version of a plane model that accounts for a third of Boeing's operating profit. The system repeatedly fought back against the pilots, causing the plane to dive no less than four times.

Ethiopian Airlines plane crash wreckage at the site where the plane dived into the ground.

The report said that pilot-side sensor readings connected to the computer system varied wildly and affected everything from their understanding of the plane's pitch to its airspeed. One of the "angle-of-attack" gauges read 15.3 degrees, likely an accurate reading for a plane taking off.

Separately, National Transportation Safety Board (NTSB) chairman Robert Sumwalt told reporters that USA investigators were given the raw data from Ethiopian Airlines Flight 302 as soon as it was read in France last month.

Boeing has previously said when the 737 MAX returns to the skies with new software changes, it will be among the safest airplanes to ever fly.

The pilots initially followed Boeing's emergency steps by disconnecting the MCAS system by switching off power to a stabiliser on the tail, the report said.

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