Some Boeing 787 turbine blades can crack within 1,000 flights: Chinese study
A study by Xia Xiaofeng of Xiamen Airlines found that some Boeing 787 turbine blades, specifically GE's GEnx-1B Phase 2 and 2+ configurations, can develop cracks within 1,000 flights due to thermal fatigue. The issue has led to engine removals and increased maintenance costs. As of August 2025, 15% of the global fleet still uses these blades, with GE revising maintenance criteria based on operational data.
How this was made
The 30-second read
Why it matters
If the findings lead to broader inspections or redesigns, GE could incur higher costs and face pressure on its aerospace earnings.
Market read
New reliability concerns could affect investor sentiment toward GE's aerospace segment and related airline operators.
What to watch
GE's recent durability upgrades and extended inspection intervals could mitigate the impact.
Background
The article summarizes a recent paper in Aviation Maintenance & Engineering highlighting premature cracks in GE's GEnx-1B turbine blades used on Boeing 787 aircraft.
Ticker impact
New Chinese study reports GEnx turbine blades can crack within 1,000 cycles, raising maintenance concerns for GE's engine business.
likely downward pressure as market prices in higher repair and warranty costs
The study reveals premature blade failures, which may lead to higher warranty claims and affect GE's earnings outlook.
Market effects
Aerospace engine manufacturers may see increased scrutiny and demand for improved blade designs.
Chinese airlines could face higher maintenance costs, affecting regional airline profitability.
Potential ripple effect on global supply chain for 787 engines and related service providers.
Counterpoint
The issue may be limited to specific blade batches and not reflect broader GE engine reliability.
Key entities
- CompanyGE Aerospace
Manufacturer of the GEnx-1B engine with the reported blade issue.
- CompanyBoeing
Operator of the 787 aircraft using the GEnx engines.
