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A comment on U.S. FAA proposes requiring key Boeing 737 MAX design changes. Parent comment

Re:U.S. FAA proposes requiring key Boeing 737 MAX design cha... by labcomputer on Monday August 03, 2020 @06:12PM (#24044083)
How do you know which one is bad?
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Re:U.S. FAA proposes requiring key Boeing 737 MAX design cha... by _ph_ on Tuesday August 04, 2020 @06:46AM (#24048613)
Strictly speaking, you cannot know which one is bad, but the correct reaction to bad AOA data is not to engage MCAS. The accidents were caused by MCAS activating on the input of a single defective AOA sensor.
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Re:U.S. FAA proposes requiring key Boeing 737 MAX design cha... by imglorp on Monday August 03, 2020 @07:15PM (#24044618)
Attitude indicators are gyroscopic and themselves redundant. If you can get the plane into level flight and then examine the AOA sensors, they should be close to a known value (see picture) if you do some math. Not saying this is a good idea.

https://orangeflighttraining.com.au/images/aviation-AoA-pitc...

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