Fort Worth-Based American Airlines Not Impacted by Latest Boeing Parts Problem

Boeing is telling some airlines flying its 737 model to replace a part on the planes' wings, a move that could affect more than 100 aircraft.

Boeing said on Sunday that it is working with federal regulators and contacted airlines about potential problems discovered in one batch of "slat tracks" produced by a supplier.

A spokesman for Fort Worth-based American Airlines confirmed one plane needs repairs, but it is a 737 Max jet that is currently out of service. The spokesman said it would take two days to fix and the jet will remain out of service until August.

In a statement to NBC 5, Dallas-based Southwest Airlines says it is investigating the issues.

"Southwest is aware of the upcoming Service Bulletins from Boeing and the Airworthiness Directive planned by the FAA, highlighting the possibility of metal fabrication issues on a limited number of 737 slat track assemblies," the Southwest statement read. "We are preparing for the review of suspect track assemblies, as we await additional guidance from Boeing, and will fully comply with any service and regulatory requirements."

Boeing said it has identified 21 planes most likely to have the parts in question, and it's advising airlines to check an additional 112 planes. The replacement work should take one to two days after the parts are in hand.

That total does not include the 179 737 Max aircraft that could also have the parts in question. The 737 Max was grounded worldwide following two crashes involving the model.