I know that the air accident rate is pretty much at its lowest since records began. I have heard a lot about grounding aircraft in recent years, though being a relatively young person, I am wondering is this new or was this always the procedure?
The only difference is an uptick in risk aversion. It took multiple serious incidents to trigger the grounding of the comet, but here we see grounding after one moderate incident. Then again, the greedy and selfish decision by Boeing executives to install only a single angle of attack sensor without redundancy as a cost cutting measure, which caused fatal crashes when paired with poorly designed software - on this very model, I believe - took multiple fatal crashes before a grounding occurred.
Note that USA has extremely safe airplanes, probably the safest in the world. But when a singular design (737 Max) has so many issues, it means we need to look at our safety process and think how Boeing could let so many mistakes through.