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You're not Boeing to believe this, but... Another deadly 737 Max control bug found

jtaylor

Updraft102 "Airbus believes that the plane should override the pilot... to overrule him and substitute its judgment for his....This situation shows why the "Boeing" approach is superior"

This is a fundamental misunderstanding. Both manufacturers use "envelope protection" to keep the airplane within safe operating limits. Both manufacturers permit the pilots to (quickly) partially or fully disable envelope protection. Both also have the protection features cease if the safe envelope is exceeded "I can't do this automatically. Human, you have control." The differences are in how they implement this. Broadly speaking, Boeing adds physical resistance to their flight controls to give a "feel" back to the pilot, while Airbus gives less value to control inputs. Each is consistent with the respective control philosophy.

Air Inter 148...was pilot error...but analysis revealed...that there was a "safety feature" on the plane, unknown to the pilots (sound familiar?), that would cause the plane to descend faster than what the pilot had dialed in if the plane sensed a sharp increase in altitude right before the descent was selected in the autopilot.

What's your source for this? The FAA report concluded that the pilots selected to control Vertical Speed instead of Flight Path Angle, were not comfortable with the new A320 type, failed to monitor vertical speed, and were sloppy with procedures. Automation was not implicated, though pilot familiarity with control systems was. See p344 in https://lessonslearned.faa.gov/AirInter148/Accident_Report_Eng.pdf p212.

Qantas 72 in 2008, an Airbus A330, repeatedly tried to dive toward the ground, pitching down...causing a number of severe injuries.

Interesting. Yes, this was also a failure of pitch control automation, though for different reasons. One of the control CPUs had a fault, the software didn't properly handle the failure, and the result was sudden uncontrolled pitch-down. Unlike MCAS, the aircraft responded to pilot controls. Per https://www.atsb.gov.au/media/3532398/ao2008070.pdf "The occurrence was the only known example where this design limitation led to a pitch-down command in over 28 million flight hours on A330/A340 aircraft, and the aircraft manufacturer subsequently redesigned the AOA algorithm to prevent the same type of accident from occurring again."

Several aviation experts have said that if either of the Boeing 737 Max incidents had occurred with a pilot with a level of training typical of western airlines, the flights would have been recoverable.

Citation needed. Which experts have said this? Do EASA and FAA agree and if so, why did they ground the 737MAX across the western world? Ethiopian Airlines has modern equipment and a good safety reputation. It's not authoritative, but see https://aviation-safety.net/database/operator/airline.php?var=6263

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