Ethiopian Airlines pilots said to have followed protocol before 737 Max crash

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Pilots on the Ethiopian Airlines flight that crashed last month followed protocol set by planemaker Boeing Co. to manually disable an automated anti-stall system as they tried to save the Boeing Co. 737 Max jet, a person familiar with the situation said.

Rescuers work March 11 at the scene of an Ethiopian Airlines flight crash near Bishoftu, Ethiopia.

The Maneuvering Characteristics Augmentation System turned itself on numerous times during the short flight, the person said. MCAS, which is programmed to push down a plane’s nose to help prevent aerodynamic stalls in some situations, is a focus of concern by regulators and lawmakers after 346 people died in crashes of Boeing’s newest version of the 737 flown by Ethiopian and Lion Air, less than five months apart.

A Boeing representative in Singapore said she wasn’t able to comment, adding that the accident is under investigation and questions should be directed to the investigators in charge. An Ethiopian transportation ministry spokesman didn’t respond to requests for comment. A preliminary report into the Ethiopian Airlines crash is nearing release but the exact timing is uncertain. The two disasters have rocked the credibility of Boeing as well as U.S. regulators who approved the new plane. Regulators around the world grounded the 737 Max, Boeing’s fastest-selling plane ever, before the U.S. Federal Aviation Authority followed suit.

 

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The Pilots are not using a super high speed anti-stall system. They are using the rotor at a slightly higher speed than the main rotor. You can't do this at a gimbal or high speed.

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