CFM International's Leap engine fleet is expected to increase over the next 10 years, according to Aviation Week's 2023 Fleet & MRO Forecast. The data shows that there are approximately 6,876 Leap engines in service currently, among which 3,570 are Leap-1A engines. CFM's -1B and -1C engine variants account for 3,276 and 30, respectively. 

Aviation Week’s data shows that only 10 engines will retire from the Leap engine family over the next 10 years, reflecting the young age of the program. The most retirements will be related to the -1B engine variant, which will see eight engines retired in 2023. 

For its aftermarket, it is forecast that the Leap engine family will represent a value of $106.8 billion in MRO spending for the period 2023-32. Over the next 10 years, the engine family will see a total of 4,372 engine shop visits related to engine overhauls and 1,354 related to engine life limited parts services. The data above shows the gradual increase in shop visits over the next decade. 

The data shows that the Leap engine family will see an average of about 16,666,390 hr. this year, which is expected to increase gradually over the next decade. It shows that the Leap-1B engine variant will see the highest engine hours for the period 2023-32. 

Source: Aviation Week Intelligence Network Commercial Aviation 2023 Fleet & MRO Forecast