Originally Posted by
Heathrow Harry
Given the issues reported by the three major engine providers right now it is a brave man who'd belie any promises TBH....
The engine change decision has VERY little to do with promises from engine manufacturers. The point is that the current engines will be non supportable in less than a decade, and the plans are to keep the airframes going for another two or three decades. Without new engines the airframes will simply stop flying long before the airframe life has been reached.
It is HOPED that the engine change will pay for itself in operating savings, but this is not what is driving the decision. And the savings include reduced fuel burn AND reduced maintenance. For example, it is estimated that on average the new engines will require at most one removal during the remaining life of the airframe. And a significant number of engines will likely NEVER require an engine removal during the life of the airframe. Yes, the new engines are that much more reliable/durable.