Published: August 14, 2026
Summary
Aircraft that had been grounded because of engine shortages and maintenance problems are increasingly returning to service, but airlines continue to face substantial financial consequences from the years-long disruption. Engine maintenance costs have risen sharply as carriers cope with expensive repairs, limited parts availability, long shop visits, and leases for replacement engines and aircraft.
Delayed deliveries from Boeing and Airbus have compounded the problem by forcing airlines to keep older aircraft in service longer than originally planned. Reuters found that reported engine-related maintenance spending among six large U.S. airline operations increased roughly 68% between 2019 and 2025, while flying hours rose only about 10%.
The issue is becoming an important economic consideration for fleet planners. Newer engines offer meaningful fuel-efficiency improvements, but maintenance and overhaul costs have increased, while older aircraft that airlines expected to retire are requiring additional investment to remain in service.
FREE — Investing.com (Reuters syndication):
Airlines get grounded jets flying again, but engine bills linger
Reuters:
Airlines get grounded jets flying again, but engine bills linger