Factor of safety. A design factor used to provide for the possibility of loads greater than those assumed, and for uncertainties in design and fabrication (ref. CASR Part 23; 25; 27; 29 used factor safety 1.5).
Farad (F). The capacitance of a capacitor between the plates of which there appears a difference of potential of 1 volt when it is charged by a quantity of electricity equal to 1 coulomb.
Fan marker beacon. A type of radio beacon, the emissions of which radiate in a vertical fan-shaped pattern.
Fault management. An ATN systems management facility to detect, isolate and correct problems.
Feature. Abstraction of real world phenomena.
Feature attribute. Characteristic of a feature. Feature operation. Operation that every instance of a feature type may perform.
Feature relationship. Relationship that links instances of one feature type with instances of the same or a different feature type.
Feature type. Class of real world phenomena with common properties.
Final takeoff speed means the speed of the airplane that exists at the end of the takeoff path in the en route configuration with one engine inoperative.
Final approach. That part of an instrument approach procedure which commences at the specified final approach fix or point, or where such a fix or point is not specified,
a) at the end of the last procedure turn, base turn or inbound turn of a racetrack
procedure, if specified; or
b) at the point of interception of the last track specified in the approach procedure; and
ends at a point in the vicinity of an aerodrome from which:
1) a landing can be made; or
2) a missed approach procedure is initiated.
Final approach and take-off area (FATO). A defined area over which the final phase of the approach manoeuvre to hover or landing is completed and from which the take-off manoeuvre is commenced. Where the FATO is to be used by performance Class 1 helicopters, the defined area includes the rejected take-off area available.
Final approach fix or point. That fix or point of an instrument approach procedure where the final approach segment commences.
Final approach segment. That segment of an instrument approach procedure in which alignment and descent for landing are accomplished.
Fireproof
(1) With respect to materials and parts used to confine fire in a designated fire zone,
means the capacity to withstand at least as well as steel in dimensions appropriate for the
purpose for which they are used, the heat produced when there is a severe fire of extended
duration in that zone; and
(2) With respect to other materials and parts, means the capacity to withstand the heat associated
with fire at least as well as steel in dimensions appropriate for the purpose for which
they are used.
Fireproof material. A material capable of withstanding heat as well as or better than steel when the dimensions in both cases are appropriate for the specific purpose.
Fire resistant
(1) With respect to sheet or structural members means the capacity to withstand the heat
associated with fire at least as well as aluminum alloy in dimensions appropriate for the
purpose for which they are used; and
(2) With respect to fluid carrying lines, fluid system parts, wiring, air ducts, fittings, and
powerplant controls, means the capacity to perform the intended functions under the
heat and other conditions likely to occur when there is a fire at the place concerned.
First Officer (F/O) A pilot qualified on an aircraft to perform the duties of second in command. May also be taken to mean co-pilot.
Fixed light. A light having constant luminous intensity when observed from a fixed point.
Flag Air Carrier. An air carrier whose operations specifications authorize operations Flame resistant means not susceptible to combustion to the point of propagating a flame, beyond safe limits, after the ignition source is removed. Flammable, with respect to a fluid or gas, means susceptible to igniting readily or to exploding.
Flap extended speed means the highest speed permissible with wing flaps in a prescribed extended position.
Flash resistant means not susceptible to burning violently when ignited. Foot (ft). The length equal to 0.304 8 metre exactly.
Flight – An aircraft is deemed to be in flight any time it is no longer in contact with the earth’s surface as the result of its weight being supported by the aerodynamic principles and design features of that particular aircraft.
Flight altitude Means the altitude above mean sea level at which the aircraft is operated.
Flight attendant – a crewmember who performs, in the interest safety of passengers, duties assigned by the operator or the pilot in command of the aircraft, but who shall not act as flight crewmember.
Flight crewmember – a crewmember assigned to duty in an aircraft as a pilot, flight engineer, second officer or navigator or a licensed crew member charged with duties essential to the operation of an aircraft during a flight duty period.
Flight Data Analysis. A process of analysing recorded flight data in order to improve the safety of flight operations.
Flight documentation. Written or printed documents, including charts or forms, containing meteorological information for a flight.
Flight duty period. The total time from the moment a flight crew member commences duty, immediately subsequent to a rest period and prior to making a flight or a series of flights, to the moment the flight crew member is relieved of all duties having completed such flight or series of flights.
Flight duty Time – the total elapsed period from the time a crewmember is required to report for duty, to the time that crewmember has completed all official duties with respect to a flight or series of flights and is released for an official crew rest.
Flight following – the process of monitoring the progress of a flight, from its point of departure to its final destination including any enroute stops, and the notification of the appropriate authorities in the event of an overdue or missing aircraft.
Flight information centre. A unit established to provide flight information service and alerting service.
Flight information region. An airspace of defined dimensions within which flight information service and alerting service are provided.
Flight information service (FIS). A service provided for the purpose of giving advice and information useful for the safe and efficient conduct of flights.
FIS application. An ATN application that provides to aircraft information and advice useful for the safe and efficient conduct of flights. Flight level means:
(1) A level of constant atmospheric pressure related to a reference datum of 29.92 inches
of mercury. Each is stated in three digits that represent hundreds of feet. For example,
flight level 250 represents a barometric altimeter indication of 25,000 feet;
flight level 255, an indication of 25,500 feet.
(2) A surface of constant atmospheric pressure which is related to a specific pressure
datum, 1 013.2 hectopascals (hPa), and is separated from other such surfaces by
specific pressure intervals.
Flight manual/Aircraft Flight Manual (AFM). A manual, associated with the certificate of airworthiness, containing limitations within which the aircraft is to be considered airworthy, and instructions and information necessary to the flight crew members for the safe operation of the aircraft.
Flight Operations Officer (FOO) – A person who is authorized by an air carrier to exercise operational control over a flight. Flight plan. Specified information provided to air traffic services units, relative to an intended flight or portion of a flight of an aircraft.
Filed flight plan. The flight plan as filed with an ATS unit by the pilot or a designated representative, without any subsequent changes.
Flight recorder. Any type of recorder installed in the aircraft for the purpose of complementing accident/incident investigation.
Flight safety documents system. A set of inter-related documentation established by the operator, compiling and organizing information necessary for flight and ground operations, and comprising, as a minimum, the operations manual and the operator’s maintenance control manual.
Flight status. An indication of whether a given aircraft requires special handling by air traffic services units or not.
Flight time means the total elapsed time from the moment the aircraft first moves under its own power for the purpose of take off, until the time it comes to rest at the end of the flight.
(1) Pilot time that commences when an aircraft moves under its own power for the
purpose of flight and ends when the aircraft comes to rest after landing; or
(2) For a glider without self-launch capability, pilot time that commences when the
glider is towed for the purpose of flight and ends when the glider comes to rest after landing.
Flight time - aeroplanes. The total time from the moment an aeroplane first moves for the purpose of taking off until the moment it finally comes to rest at the end of the flight.
Flight time - helicopters. The total time from the moment a helicopter’s rotor blades start turning until the moment the helicopter finally comes to rest at the end of the flight, and the rotor blades are stopped.
Flight visibility means the average forward horizontal distance, from the cockpit of an aircraft in flight, at which prominent unlighted objects may be seen and identified by day and prominent lighted objects may be seen and identified by night.
Flight Watch – the process by which a qualified flight operations officer provides flight following services to a flight, and provides any operational information as may be requested by the pilot in command or deemed necessary by the flight operations officer.
Flight watch system – means an air carrier’s equipment, facilities and personnel which enable that air carrier to exercise operational control over a flight in progress via direct and timely communications with that flight.
Forecast. A statement of expected meteorological conditions for a specified time or period, and for a specified area or portion of airspace.
Foreign air carrier means any person other than a citizen of the United States, who undertakes directly, by lease or other arrangement, to engage in air transportation.
Foreign air commerce means the carriage by aircraft of persons or property for compensation or hire, or the carriage of mail by aircraft, or the operation or navigation of aircraft in the conduct or furtherance of a business or vocation, in commerce between a place in the Republic of Indonesia and any place outside thereof
Foreign air transportation means the carriage by aircraft of persons or property as a common carrier for compensation or hire, or the carriage of mail by aircraft, in commerce in to and out from the Republic of Indonesia and any place outside of the Republic of Indonesia.
Forecast. A statement of expected meteorological conditions for a specified time or period, and for a specified area or portion of airspace.
Foreign civil aircraft means an aircraft registered and or bearing non-Indonesian nationality and registration marks.
Forward error correction (FEC). The process of adding redundant information to the transmitted signal in a manner which allows correction, at the receiver, of errors incurred in the transmission.
Forward wing means a forward lifting surface of a canard configuration or tandem-wing configuration airplane. The surface may be a fixed, movable, or variable geometry surface, with or without control surfaces.
Frangible object. An object of low mass designed to break, distort or yield on impact so as to present the minimum hazard to aircraft.
Frequency channel. A continuous portion of the frequency spectrum appropriate for a transmission utilizing a specified class of emission.
Fully automatic relay installation. A teletypewriter installation where interpretation of the relaying responsibility in respect of an incoming message and the resultant setting-up of the connections required to effect the appropriate retransmissions is carried out automatically, as well as all other normal operations of relay, thus obviating the need for operator intervention, except for supervisory purposes.
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