Engine Reliability Issues Cost Aviation Industry $11 Billion
Global airlines faced significant financial losses in 2025 due to widespread engine durability problems.
Updated on Sept. 22, 2026 in Air Travel
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The global aviation industry incurred $11 billion in costs throughout 2025 as reliability issues grounded aircraft and forced carriers to fly less efficient planes. These challenges spanned multiple manufacturers, complicating flight schedules and increasing operational expenses worldwide.
Why it matters
Design flaws and persistent supply chain issues meant that investments in newer, fuel-efficient engines failed to deliver expected returns. Airlines were forced to rely on older, costlier aircraft to maintain service levels while grounded fleets required extensive maintenance.
Airlines spent $4.2 billion on excess fuel and $3.1 billion maintaining aircraft slated for retirement. By March 2025, 28% of the global Pratt & Whitney GTF engine fleet was grounded due to durability concerns.
The players
Pratt & Whitney
An aerospace manufacturer whose GTF engine fleet faced significant grounding issues throughout the industry.
Rolls-Royce
A global power and propulsion company that experienced specific durability issues with its Trent 1000 engine line.
The details
Carriers sought to mitigate the crisis by renting spare engines and expanding inventories of spare parts to keep aging planes airworthy. Technical durability issues were also noted in the Rolls-Royce Trent 1000, specifically concerning the high-pressure turbine blades.
Timeline
In 2024, annual narrow-body engine production totaled 2,000 units.
By March 2025, 28% of the global GTF engine fleet was grounded.
Total engine reliability costs reached $11 billion in 2025.
Annual narrow-body engine production is projected to reach 3,700 units by 2040.
Travel Outlook
The aviation industry is recalibrating its long-term maintenance logistics in anticipation of the transition to CFM LEAP engine technical requirements. This reflects a broader shift toward scaling production to 3,700 annual units by 2040 to replace aging fleets.
Passengers may encounter continued flight schedule variability as airlines manage aging aircraft and engine supply chains. Travelers should monitor carrier announcements closely to anticipate potential shifts in equipment or route availability for upcoming trips.
The takeaway
Reliability challenges in next-generation engines have forced airlines to prioritize operational durability over fleet modernization. This trend underscores the importance of supply chain resilience in maintaining global connectivity.
Further reading
For more information on the shifting dynamics of international aviation, visit the Air Travel section.
Source note: This article includes information reported by PravdaReport.
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