HTS 9903.02.81
Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts, and components; their other parts, components, and subassemblies; and ground flight simulators and their parts and components of South Korea, excluding unmanned aircraft, provided for in subdivision (v)(xxiv)(b) of U.S. note 2 to this subchapter Rates of duty (1-General): The duty provided in the applicable subheading Rates of duty (1-Special): The duty provided in the applicable subheading Rates of duty (2): The duty provided in the applicable subheading Footnote [stat,units]: See chapter 99 statistical note 1.