WASHINGTON (Reuters) - The U.S. Commerce Department said Friday it has opened a national security investigation into the import of commercial aircraft, jet engines and parts. The investigation, which was opened on May 1 but not publicly disclosed previously, seeks public comment within three weeks on a series of comments on "the impact of foreign government subsidies and predatory trade practices on the competitiveness of the commercial aircraft and jet engine industry." (Reporting by David Shepardson)
