An American Airlines jet returned to Las Vegas after reporting an engine issue on Wednesday. American flight 1665, operating on an Airbus A321, was heading to Charlotte Douglas International Airport at 8:20 a.m. local time when it had to return to Harry Reid International Airport in Las Vegas, according to the Federal Aviation Administration’s preliminary statement. No injuries were reported, a spokesperson for the airport told CNN. There were 153 passengers on the flight, the spokesperson said. The FAA is investigating.