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U.S. Launches National Security Probe into Imported Aircraft and Engines

The investigation under Section 232 could lead to new tariffs, while a provisional deal allows UK-made Rolls-Royce engines to enter duty-free.

United States Department of Commerce logo and U.S. flag are seen in this illustration taken April 23, 2025. REUTERS/Dado Ruvic/Illustration/File Photo
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U.S. President Donald Trump speaks at the White House in Washington on May 9, 2025 in this photo released by Reuters. (Yonhap)

Overview

  • The U.S. Commerce Department has officially opened a Section 232 investigation into whether imported commercial aircraft, jet engines, and parts pose a national security threat.
  • The probe, initiated on May 1, could result in new or higher tariffs on aerospace imports, with public comments being collected over the next 21 days.
  • Aerospace imports have historically been duty-free under the 1979 Civil Aircraft Agreement, but most currently face a 10% tariff, with industry stakeholders lobbying for a return to duty-free status.
  • On May 8, the U.S. reached a provisional agreement with the UK to exempt British-made Rolls-Royce engines from tariffs, highlighting ongoing bilateral negotiations.
  • The aerospace sector, which exports over $135 billion annually and sustains a $75 billion trade surplus, argues that tariffs could disrupt supply chains and impact domestic manufacturing jobs.