Combustor Liner for GE90 High-Bypass Turbofan
A ceramic matrix composite (CMC) combustor liner for the GE90 engine powering Boeing 777 aircraft, designed to withstand combustion temperatures up to 3000°F. Classified under HTS 8411.99.90.90 as a critical combustion chamber part exclusive to aircraft gas turbines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for stationary industrial gas turbine combustors
Non-aircraft gas turbine parts have separate provisions.
If imported as raw ceramic matrix composite material without aircraft-specific machining
Unfinished refractory ceramics classify under Chapter 69.
If part of semiconductor wafer processing equipment
Some high-temp components crossover to Chapter 84 industrial machinery.
Not sure which classification is right?
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Import Tips & Compliance
• Include NIST-traceable material test reports for advanced composites to satisfy customs engineering review
• Verify ITAR exemption status; aircraft turbine parts often require export license equivalents for import
• Avoid misdeclaration as 'industrial turbine part' which shifts to 8411.99.10 and different duties
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