A Chinese aviation specialist has reported that certain high-pressure turbine blades in GE Aerospace engines powering Boeing 787 aircraft have sustained unexpectedly early damage, presenting airlines with a stark choice: replace the affected engines or continue operations under enhanced inspection requirements.
The findings raise questions regarding the reliability of American aerospace products as scrutiny of U.S. manufacturing quality intensifies. The study indicates that cracks may form in some blades within roughly 1,000 flight cycles, potentially causing metal fragments to detach.
“The airline’s Boeing 787 fleet recorded five engine removals due to defects in Phase 2/2+ HPT blades,” wrote Xia Xiaofeng, the study’s author. “All cases involved material loss between cooling holes on the blades’ convex surfaces.”
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