Why has nothing been brought up as to the root cause of these disastrous crashes, that the AOA indicators are failing at an alarming rate?
Boeing offered a second AOA sensor which most airlines purchased, except that the low cost turd world airlines didn't opt for.
The Boeing 737 NG also used a version of MCAS, thought not as "intelligent" as the system used on the Max version.
There are other means to turn the crank handles for control surfaces. They could have installed a hydraulic system to operate the control surfaces
Biting the hand that feeds IT
