Originally Posted by
1stspotter
This very detailed post has an overview of the many design failures Boeing made on the Boeing 737 MAX.
3. Using a single AOA sensor as input for MCAS
4. No alert in cockpit about AOA disagreement nor information on the angle of attack value of both sensors.
These are symptoms not faults.
Faults are:
3. Hazard and risk analysis (HARA) for STS and/or MCAS severly gone wrong.
4. Failure mode and effect analysis (FMEA) for AOA sensing highly questionable.