Ok, lets spin the numbers your way.

The entire GE90 series has those 71 shutdowns in roughly 24 million flight hours. The Trent’s 88 IFSD were accumulated in only 18 million flight hours. The Trent is a lot less reliable than the GE90 series.

And in the last 12 months Trent has had 3 IFSD whereas GE90 has had 2…..even though GE90 has 4.6 million FH compared to only 1.8 million FH for the Trent. GE90 flew 2.5 times as much over the last year and had fewer total shutdowns and the -115 had none!