Aviation fuel
Aircraft ground handling
Aircraft parking (ramp or tiedown)
Hangars
GPU / Power cart
Passenger terminal and lounge
Pilot school (FAR Part 141)
Aircraft rental
Aircraft charters
Aircraft maintenance
Avionics sales and service
Aircraft cleaning / washing / detailing
Catering
Pilot supplies
Courtesy transportation
Courtesy cars (free for pilots to use in the local area)
Pilots lounge / snooze room
Public telephone
Computerized weather
Internet access
Restrooms
Showers