Plane having problems with Landing Gear going to attempt a emergency landing in St. Louis Live on CNN now CAHOKIA, Ill. â€” An official at a southern Illinois airport says an inbound Learjet with eight people aboard has landing gear trouble and preparing for an emergency landing. Diane Earhart of St. Louis Downtown Airport in Cahokia said Monday afternoon that air traffic control has confirmed the aircraft's landing gear is not functioning correctly. She says the pilot is circling the airport to determine when and how to land. Fire trucks, ambulances and emergency crews can be seen on the airport tarmac. Cahokia is 5 miles south of St. Louis, Mo.