All of this is my opinion. Without prejudice.
There have been two recent and fatal air crashes of a specific model of plane.
Here is what I think is the problem.
The plane was made more efficient (no problem) and similar in cockpit controls to its predecessor (almost no problem.)
So a crew used to the older plane could fly the new one.
Except for one small difference.
When the plane thinks its airspeed is too slow, it dives to avoid a stall.
On the older plane, the pilot (or co-pilot) pulled back on the control and the plane obeyed.
In the newer plane, a switch has to be turned off. Pulling back does not work as the computer overrides the pilot-copilot.
Here’s my point: if the planes are Really Similar, train the pilots about the differences.
I gleaned all of the above from open sources on the Internet. It could be true or not. If the airspeed indicator was malfunctioning, that could explain what happened.
Yes, I’m going to fly on one of these planes. No choice in Canada.