Responding to a federal probe into the national security impact of imported commercial planes, jet engines, and parts, Delta Air Lines urged the government not to impose new tariffs.

A Delta spokesperson provided Fox News Digital with a document from a law firm that was responding on behalf of the airline to the government's public comment request on the probe.

The message warned that "without providing time to adjust, any potential tariffs would not only threaten U.S. manufacturing of aircraft, it would also inhibit Delta’s ability to purchase aircraft produced domestically or abroad."

"If Commerce were to recommend tariffs under Section 232, the action would also impose an unexpected tax on Delta’s purchases of aircraft contracted years in advance. Delta would likely be forced to

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