Place the corn on a large plate or rimmed baking sheet and brush each one with the melted butter. In a small bowl, stir together the chilli powder, salt and pepper, then sprinkle the spice mixture over the corn, rolling to coat evenly.
Select Air Fry and adjust the temperature to 200°C and set the cook time for 12 minutes, then press Start. When prompted to add food, place the corn inside.
Flip the corn over when prompted to Turn Food and continue cooking for the rest of the time.
Meanwhile, in a small bowl, stir together the mayonnaise, sour cream and half the feat cheese with a abit more salt and pepper.
When the cooking time is up, use tongs to carefully transfer the corn to a clean plate or rimmed baking sheet. Brush the corn with some of the sour cream mixture and let rest for 1 minute, allowing the mixture to be absorbed. Brush the corn again with more sour cream mixture, then roll in the remaining cheese.
Serve with the coriander on top, and lime wedges alongside.