| title: | Flight Phase |
| identifier: | http://semantics.aero/flight-phase |
| description: | A classification of services or other artifacts based on the flight phase, or period within a flight, during which the artifacts are used or provide support. |
| version: | 1.0.0 |
| creator: | Carol Uri (The SEMCON Group, LLC) |
| creator: | Mark Kaplun (FAA) |
| creator: | Wen Zhu (NIRA Inc.) |
| publisher: | FAA |
| date issued: | 2018-01-02 |
| format: | HTML |
| URI: | http://semantics.aero/flight-phase#flight-phase |
| Preferred Label: | flight phase |
| Alternative Label: | phase of flight |
| Definition: | A period within a flight of an aircraft. |
| Narrower: | flight-planning |
| Narrower: | standing |
| Narrower: | pushback-towing |
| Narrower: | taxi |
| Narrower: | takeoff |
| Narrower: | initial-climb |
| Narrower: | en-route |
| Narrower: | approach |
| Narrower: | landing |
| Narrower: | ground-servicing |
| URI: | http://semantics.aero/flight-phase#flight-planning |
| Preferred Label: | Flight Planning |
| Definition: | This phase occurs when the flight crew initiates the use of flight planning information facilities and becomes dedicated to a flight based upon a route and an airplane; it ends when the crew arrives at the aircraft for the purpose of the planned flight. |
| URI: | http://semantics.aero/flight-phase#standing |
| Preferred Label: | standing |
| Alternative Label: | parked |
| Definition: | This phase occurs prior to pushback or taxi, or after arrival, at the gate, ramp, or parking area, while the aircraft is stationary. |
| Narrower: | pre-flight |
| Narrower: | post-flight |
| URI: | http://semantics.aero/flight-phase#pre-flight |
| Preferred Label: | pre-flight |
| Definition: | This phase occurs with the arrival of the flight crew at an aircraft for the purpose of flight; it ends when a decision is made to depart the parking position and/or start the engine(s). |
| URI: | http://semantics.aero/flight-phase#post-flight |
| Preferred Label: | post-flight |
| Definition: | This phase occurs when the flight crew commences the shutdown of ancillary systems of the aircraft for the purpose of leaving the flight deck; it ends when the crew leaves the aircraft. |
| URI: | http://semantics.aero/flight-phase#pushback-towing |
| Preferred Label: | pushback/towing |
| Definition: | This phase occurs when the aircraft is moving in the gate, ramp, or parking area, assisted by a tow vehicle (tug). |
| URI: | http://semantics.aero/flight-phase#taxi |
| Preferred Label: | taxi |
| Definition: | This phase occurs when the aircraft is moving on the aerodrome surface under its own power prior to takeoff or after landing. |
| Narrower: | taxi-out |
| Narrower: | taxi-in |
| URI: | http://semantics.aero/flight-phase#taxi-out |
| Preferred Label: | taxi-out |
| Definition: | This phase occurs when the aircraft moves forward under its own power; it ends when thrust is increased for the purpose of takeoff. |
| URI: | http://semantics.aero/flight-phase#taxi-in |
| Preferred Label: | taxi-in |
| Definition: | This phase occurs when the aircraft begins to maneuver under its own power to an arrival area for the purpose of parking; it ends when the aircraft ceases moving under its own power with a commitment to shut down the engine(s). |
| URI: | http://semantics.aero/flight-phase#takeoff |
| Preferred Label: | takeoff |
| Alternative Label: | departure |
| Definition: | This phase occurs from the application of takeoff power, through rotation and to an altitude of 35 feet above runway elevation. |
| URI: | http://semantics.aero/flight-phase#initial-climb |
| Preferred Label: | initial climb |
| Definition: | This phase occurs from the end of the takeoff to the first prescribed power reduction, or until reaching 1,000 feet above runway elevation or the Visual Flight Rules (VFR) pattern, whichever comes first. |
| URI: | http://semantics.aero/flight-phase#en-route |
| Preferred Label: | en route |
| Definition: | Under Instrument Flight Rules (IFR), this phase occurs from completion of initial climb through cruise altitude and completion of controlled descent to the Initial Approach Fix (IAF). Under Visual Flight Rules (VFR), this phase occurs from completion of initial climb through cruise and controlled descent to the VFR pattern altitude or 1,000 feet above runway elevation, whichever comes first. |
| Narrower: | en-route-climb |
| Narrower: | cruise |
| Narrower: | oceanic |
| Narrower: | descent |
| URI: | http://semantics.aero/flight-phase#en-route-climb |
| Preferred Label: | en route climb |
| Definition: | This phase occurs when the aircraft is established at a defined speed and configuration that enables it to increase altitude for the purpose of cruising; it ends with the aircraft established at a predetermined constant initial cruise altitude at a defined speed. |
| URI: | http://semantics.aero/flight-phase#cruise |
| Preferred Label: | cruise |
| Definition: | This phase occurs during any level flight segment after arrival at initial cruise altitude until the start of descent to the destination. |
| URI: | http://semantics.aero/flight-phase#oceanic |
| Preferred Label: | oceanic |
| Definition: | This phase occurs when the aircraft is flying over the oceans of the world, considered international airspace, where ICAO oceanic separation and procedures are applied. |
| URI: | http://semantics.aero/flight-phase#descent |
| Preferred Label: | descent |
| Definition: | This phase occurs when the aircraft departs the cruise altitude for the purpose of an approach at a particular destination; it ends when changes in aircraft configuration and/or speeds are initiated to facilitate a landing on a particular runway. |
| URI: | http://semantics.aero/flight-phase#approach |
| Preferred Label: | approach |
| Definition: | Under Instrument Flight Rules (IFR), this phase occurs from the Initial Approach Fix (IAF) to the beginning of the landing flare. Under Visual Flight Rules (VFR), this phase occurs from the point of VFR pattern entry, or 1,000 feet above the runway elevation, to the beginning of the landing flare. |
| URI: | http://semantics.aero/flight-phase#landing |
| Preferred Label: | landing |
| Alternative Label: | arrival |
| Definition: | This phase occurs from the beginning of the landing flare until aircraft exits the landing runway, comes to a stop on the runway, or when power is applied for takeoff in the case of a touch-and-go landing. |
| URI: | http://semantics.aero/flight-phase#ground-servicing |
| Preferred Label: | ground servicing |
| Definition: | This phase occurs when the aircraft is stopped and available to be safely approached by ground personnel for the purpose of securing the aircraft and performing the duties applicable to the arrival of the aircraft (e.g., aircraft maintenance); it ends with completion of the duties applicable to the departure of the aircraft or when the aircraft is no longer safe to approach for the purpose of ground servicing. |