Authorities say they received a call at about 9:27 a.m. after a smoke smell was detected in the cabin area of American Airlines flight 31, which had taken off from LAX at 8:48 a.m. and was carrying 188 passengers and six crew members.
The plane turned back and touched down around 9:45 a.m. on Runway 7, where fire crews were already on hand in anticipation of the Airbus 380 landing, said Brian Humphrey of the Los Angeles Fire Department.
No injuries were reported.