Engine aftermarket demand is valued at $300 billion over the next 10 years, according to Aviation Week’s 2019 Fleet & MRO Forecast.
That will be the case despite declining numbers of both engine types as CFM LEAP and PW1000G engines take their place. Over the next 10 years CFM56 and V2500 numbers will fall at annualised rates of 3.8% and 3.5% respectively, Aviation Week forecasts. In contrast, by 2028 there are expected to be 24,000 LEAP-family engines in service.
Collected and summarized from the source below by Giang Tan https://www.mro-network.com/maintenance-repair-overhaul/engine-demand-over-next-decade