Tdracer,
I'm just using your numbers. So that would be IFSD of 1 per 1.4 million hours on the 787 in general.
Anyway, there have been 19 shutdown inflight since 2013, which would make it worse.
So if 400 aircraft have done 5 million hours (10 million engine hours), that would be 1 IFSD every 530000 hours on round figures taking 747-8 hours into account, or am I missing something?