Look at all the benefits that come with FADEC (https://en.wikipedia.org/wiki/FADEC https://en.wikipedia.org/wiki/FADEC), and then ask me how widespread it is.

Look at all the benefits that come with FADEC (https://en.wikipedia.org/wiki/FADEC https://en.wikipedia.org/wiki/FADEC), and then ask me how widespread it is. The aviation industry is veeeerry conservative, not to mention hesitant to retrofit perfectly functional airplanes.