In a shallow dish, whisk together the buttermilk, eggs, 1 teaspoon of salt, and 1 teaspoon of black pepper.
In a second shallow dish, combine the flour, garlic powder, seasoned salt, paprika, onion powder, and the remaining 1 teaspoon of black pepper.
Pat the chicken pieces completely dry with paper towels. This helps the coating stick.
Working with one piece at a time, dredge the chicken in the flour mixture, shaking off any excess. Dip it into the buttermilk mixture, allowing extra to drip off. Finally, dredge it back in the flour for a thick second coat.
Lightly spray the air fryer basket with oil. Arrange the chicken in a single layer, ensuring pieces do not touch. Lightly spray the tops of the chicken with oil.
Air fry at 370°F (188°C) for 15-20 minutes.
Carefully flip the chicken pieces, spray the other side with oil, and continue to air fry for another 5-10 minutes.
The chicken is done when it's golden brown and a meat thermometer inserted into the thickest part reads 165°F (74°C).
Remove the chicken from the air fryer and let it rest for 5 minutes before serving. Cook any remaining chicken in batches.