未来10年，发动机MRO需求将以4.9％的复合年增长率增长，这是所有航空收费服务类别中增长率最高的。与此同时，发动机MRO还占MRO总需求的46％。

Engine MRO demand will grow at a 4.9% CAGR over the next 10 years, the highest rate of any expense category. It also makes up 46% of total MRO demand over the same period.

涡扇发动机的大修占所有发动机维修事件的63％，而发动机中时寿件（LLP）的更换占19%，LLP更换的复合年增长率为5.6％，其美元需求的复合年增长率为6.5％。

Turbofan overhauls make up 63% of all engine event activity, while LLP replacements make up 19%. Turbofan LLP events grow at a 5.6% CAGR and their dollar demand grows at a 6.5% CAGR.  

同样，涡桨发动机的维修可能达到21300次，并且在未来十年中价值近160亿美元。

Similarly, turboprop engine events number 21,300 and are worth nearly $16B over the next decade.