Originally Posted by
Bula
Tdracer,
So with that deduction, that's 7 inflight shutdown I'm aware of...
400 Aircraft, 5 millions Hours.....
Inflight failure rate of 1 Failure every 700 000 ish hours....
That would be an ETOPS failure by the old methods. The thing never would have been certified.
Huh?
First off, IFSD rate is number of shutdowns divided by the number of
engine hours, not aircraft hours.
Baseline IFSD rate for 180 minute ETOPS is 0.02 (20/million hours.). Both GEnx and Trent 1000 are several times better than that.