A Spirit Airlines Airbus A319 turned back to Dallas/Fort Worth International airport on 15 October after smoke was seen in the cabin.
The flight's captain had received "an indication of a possible mechanical issue", says a Spirit spokesperson. "One engine was shut down, which is normal procedure under these circumstances," she adds. The aircraft turned back to Dallas/Fort Worth as a safety precaution, she says.
Spirit's A319s are powered by International Aero Engines V2500 engines.
The aircraft landed normally at Dallas/Fort Worth and the passengers deplaned safely, says Spirit. No one was injured during the incident.
A US National Transportation Safety Board spokesperson could not comment on whether the agency is investigating the incident, citing the US government shutdown that has led to the furlough of most government employees.