September 2026 has demonstrated notable trends in narrowbody aircraft engine utilization, especially among newer engine models. The CFM International LEAP engine is operating at over 90% flown days, reflecting steady growth since 2023 and limited impact from heavy maintenance.
As summer concludes, airlines tend to schedule more maintenance, leading to reductions in flight activity. However, the data reveals that engines like the CFM LEAP maintain high operational availability during this period, driven by their fuel efficiency benefits.
In contrast, older engine types such as the CFM56 and IAE V2500 are experiencing lower utilization rates, falling below 80% flown days in September, coinciding with their heavy maintenance cycles. Meanwhile, Pratt & Whitney's PW1000G (GTF) engines have shown significant recovery, nearly 10% improvement from the previous year, thanks to efforts to enhance durability and reliability.
This analysis was compiled using data from Aviation Week’s Tracked Aircraft Utilization database, which leverages detailed flight movement records to provide insights into fleet performance. Overall, current trends suggest a cautious but optimistic outlook for engine utilization amid high fuel prices and operational considerations.
