- Hangars and other aircraft storage facilities (2)
- Aircraft storage at airports (1)
- Airport hangar rental (1)
- Hangar operation (1)
- Aircraft maintenance and repair services (6)
- Aircraft cleaning and janitorial service (6)
- Aircraft servicing and repairing (20)
- Aircraft upholstery repair (1)
- Airport (48)
- Flying field, except those maintained by clubs (1)
- Airport terminal services (1)
