The airline explained that the mishap happened at the landing and was treated as smoke on the plane's landing gear.
The 151 passengers onboard and the crew were immediately disembarked and were all well. No injuries have been reported so far.
The plane is a Boeing 737-800, which made flight AM120.
Aeromexico is Mexico's company with the largest number of passengers. It has a fleet of a total of 130 aircraft.