The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:

AVGAS—Aviation gasoline used in propeller-driven piston aircraft.

Apron—A defined area on an airport intended to accommodate aircraft for purposes of loading or unloading passengers or cargo, refueling, parking or maintenance.

Bureau—The Bureau of Aviation of the Department.

Code—74 Pa.C.S. Part III (relating to the Aviation Code).

Department—The Department of Transportation of the Commonwealth.

Director—The Director of the Bureau.

FAA—The Federal Aviation Administration.

FBO—fixed base operator—A commercial enterprise that has entered into a lease agreement with the Department to provide services which may include the following:

1. (i) Aircraft fueling and oil dispensing.
2. (ii) Aircraft, parking, tie-down and hangar storage.
3. (iii) Airframe, power plant and accessory service.
4. (iv) Radio and instrument service.
5. (v) Air charter and flight instruction for airport users.

6. (vi) Ground services.

   Ground services—Services provided by the FBO including:

7. (i) Aircraft towing.
8. (ii) Baggage handling.
9. (iii) Deicing—glycol.
10. (iv) Power starts—A. C. and D. C.
11. (v) Air start.
12. (vi) Lavatory service.
13. (vii) Potable water.
14. (viii) Aircraft cleaning—interior and exterior.

15. (ix) Cabin supplies.

    NFPA—National Fire Protection Agency.

    Taxi-out—The movement of an airplane, under its own power, from its fixed position at an apron or parking position to the runway.

    Tie-down—Securing of an aircraft by binding anchors or ropes or other similar methods.

    User—An airport customer who desires to utilize a service offered by an FBO.

    Unairworthy aircraft—An aircraft that does not meet its FAA type certification or is in a condition that is unsafe for operation in the air, and is not under the care and control of an FBO for maintenance.