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Engine age isn’t the same as airframe age, and components don’t age linearly with calendar time; they age with flight hours or pressurization cycles. Without ac
by ashtonkem 6y ago
Engine age isn’t the same as airframe age, and components don’t age linearly with calendar time; they age with flight hours or pressurization cycles. Without access to a log book, it’s impossible to know how old an engine is or when it was last overhauled.
- bluGill 6y agoThat isn't completely true. We don't know exactly, but the documented time between overhaul and the life of the airframe place upper bounds on those. Some cheap airlines might ignore those rules, but none in the US. (Only the poorest, most corrup, countires in the world will ignore those limits)
- ralph84 6y agoIndeed, for a 25-year-old airframe with the utilization it would have at a major carrier like United there's basically no way the engines hanging on it now could be the same engines it was delivered with.