Originally Posted by
Less Hair
How about leaving MCAS the way it was and just change the AoA-sensors to some failsafe (including wrong installation and birdstrike) system? Like LIDAR or similar?
Repeated activation is an issue.
What is required when MCAS has failed safe, and how will the crew know?
The original version used one sensor - this was because of an incorrect classification made during design.
Such a change would possibly require extra training as a minimum but also exclude the grandfather rights.
It is not a software fix.
As for the return to service of the MAX - I think the March date will not be correct.
I can not see the FAA making such a important decision without the second report being released, that is due in March and while the FAA will get an early preview. I think they will want the public reaction if such things like manual trim wheel get a detailed mention.