[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR139.3]

[Page 775]
 
                     TITLE 14--AERONAUTICSAND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 139--CERTIFICATION AND OPERATIONS: LAND AIRPORTS SERVING CERTAIN 
AIR CARRIERS--Table of Contents
 
                           Subpart A--General
 
Sec. 139.3  Definitions.

    The following are definitions of terms as used in this part:
    AFFF means aqueous film forming foam agent.
    Air carrier means a person who holds or who is required to hold an 
air carrier operating certificate issued under this chapter while 
operating aircraft having a seating capacity of more than 30 passengers.
    Air carrier aircraft means an aircraft with a seating capacity of 
more than 30 passengers which is being operated by an air carrier.
    Air carrier operation means the takeoff or landing of an air carrier 
aircraft and includes the period of time from 15 minutes before and 
until 15 minutes after the takeoff or landing.
    Airport means an area of land or other hard surface, excluding 
water, that is used or intended to be used for the landing and takeoff 
of aircraft, and includes its buildings and facilities, if any.
    Airport operating certificate means a certificate, issued under this 
part, for operation of an airport serving scheduled operations of air 
carriers.
    Average daily departures means the average number of scheduled 
departures per day of air carrier aircraft computed on the basis of the 
busiest 3 consecutive months of the immediately preceding 12 calendar 
months; except that if the average daily departures are expected to 
increase, then ``average daily departures'' may be determined by planned 
rather than current activity in a manner acceptable to the 
Administrator.
    Certificate holder means the holder of an airport operating 
certificate or a limited airport operating certificate, except that as 
used in subpart D ``certificate holder'' does not mean the holder of a 
limited airport operating certificate if its airport certification 
specifications, or this part, do not require compliance with the section 
in which it is used.
    Heliport means an airport or an area of an airport used or intended 
to be used for the landing and takeoff of helicopters.
    Index means an airport ranking according to the type and quantity of 
aircraft rescue and firefighting equipment and agent required, 
determined by the length and frequency of air carrier aircraft served by 
the airport, as provided in subpart D of this part.
    Limited airport operating certificate means a certificate, issued 
under this part, for the operation of an airport serving unscheduled 
operations of air carriers.
    Movement area means the runways, taxiways, and other areas of an 
airport which are used for taxiing or hover taxiing, air taxiing, 
takeoff, and landing of aircraft, exclusive of loading ramps and 
aircraft parking areas.
    Regional Airports Division Manager means the airports division 
manager for the FAA region in which the airport is located.
    Safety area means a designated area abutting the edges of a runway 
or taxiway intended to reduce the risk of damage to an aircraft 
inadvertently leaving the runway or taxiway.
    Wildlife hazard means a potential for a damaging aircraft collision 
with wildlife on or near an airport. As used in this part, ``wildlife'' 
includes domestic animals while out of the control of their owners.

[Doc. No. 24812, 52 FR 44282, Nov. 18, 1987; 53 FR 4258, Feb. 12, 1988, 
as amended by Amdt. 139-16, 54 FR 39295, Sept. 25, 1989]