That's fine, but signing off on it just means that they were convinced that it's airworthy. Your own [1] link even says: > “While the software upgrades and ch

That's fine, but signing off on it just means that they were convinced that it's airworthy. Your own [1] link even says: > “While the software upgrades and changes are enough to get the plane back in the air, the agency is still demanding the development of a so-called synthetic sensor (that will be ready in 20 to 24 months) to reach even higher safety levels.” This seems clear that we're talking about a conditional airworthiness rather than absolute confidence, safest plane ever made, etc etc. Recall that you said "It's probably far safer now than other models". Why are you saying that given that the experts you quoted are using the paragraph above for this plane, when they don't have similar concerns and requirements for other models?