ACC PROCEDURES PPT Flashcards
Advisory Airspace
An airspace of defined dimensions, or designated route, within which air traffic advisory service is available
Airborne Collision Avoidance System (ACAS)
An aircraft system based on secondary surveillance radar SSR transponder signals which operate independently of ground-based equipment to provide advice to the pilot on potential conflicting aircraft that are equipped with SSR transponders.
Air Traffic Control service
service provided for the purpose of:
a) preventing collisions:
1) between aircraft, and
2) on the maneuvering area between aircraft and obstructions; and
b) expediting and maintaining an orderly flow of air traffic.
Airway
A control area or portion thereof established in the form of a corridor
Altitude
The vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL).
Area Control Center (ACC)
A unit established to provide air traffic control service to controlled flights in control areas under its jurisdiction
Area Control Service
Air traffic control service for controlled flights in control areas
Clearance Limit
The point to which an aircraft is granted an air traffic control clearance
Controlled airspace
An airspace of defined dimensions within which air traffic control service is provided in accordance with the airspace classification
Cruise climb
An aeroplane cruising technique resulting in a net increase in altitude as the aeroplane mass decreases
Cruising level
A level maintained during a significant portion of a flight
Flight Information Region (FIR)
An airspace of defined dimensions within which flight information service and alerting service are provided.
Reporting point
A specified geographical location in relation to which the position of an aircraft can be reported
Significant point
A specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes
Special VFR flight
A VFR flight cleared by air traffic control to operate within a control zone in meteorological conditions below VMC
Terminal control area (TMA)
A control area normally established at the confluence of ATS routes in the vicinity of one or more major aerodromes.
Traffic information
Information issued by an air traffic services unit to alert a pilot to other known or observed air traffic which may be in proximity to the position or intended route of flight and to help the pilot avoid a collision.
Transfer of control point
A defined point located along the flight path of an aircraft, at which the responsibility for providing air traffic control service to the aircraft is transferred from one control unit or control position to the next.
Area control service shall be provided by:
a. by an area control center (ACC) or;
b. the unit providing approach control service in a control area of limited extent which is designated primarily for the provision of approach control service
Approach control service shall be provided by:
a. by an aerodrome control tower or an ACC.
b. by an approach control unit, when it is necessary or desirable to establish a separate unit
Aerodrome control service shall be provided by
an aerodrome control tower
Flight information service and alerting service shall be provided as follows:
a. within a FIR: by a flight information center,
b. within controlled airspace and at controlled aerodromes: by the relevant ATC units.
Approach control service shall be responsible for the control of
a. arriving aircraft that have been released to it by the ACC;
b. departing aircraft until such aircraft are released to the ACC
responsibility for the control of an aircraft shall be transferred from a unit providing area control service in a control area to the unit providing area control service in an adjacent control area
a. at the time of crossing the common control area boundary as estimated by the ACC having control of the aircraft;
b. or at such other point, level or time as has been agreed between the two units
responsibility for the control of an aircraft shall be transferred from one control sector/position to another control sector/position within the same ATC unit at
at a point, level or time, as specified in local instructions
When initial portion of a flight will be uncontrolled, and that the
subsequent portion will be subject to ATC
aircraft shall obtain its clearance from the ATC unit in whose area controlled flight will be commenced
When first portion of a flight will be subject to ATC, and that the subsequent will be uncontrolled
aircraft shall be cleared to the point at which the controlled flight terminates
When an aircraft files, at the departure aerodrome, flight plans for the various stages of flight through intermediate stops,
the initial clearance limit will be the first destination aerodrome and new clearances shall be issued for each subsequent portion of flight
Clearances shall contain the following in the order listed
a. aircraft identification;
b. clearance limit;
c. route of flight;
d. level(s) of flight for the entire route or part thereof and changes of levels if required;
e. any necessary instructions or information
A clearance limit shall be described by specifying the name of the
a. appropriate significant point, or;
b. aerodrome, or;
c. controlled airspace boundary
Route of Flight
a. The route of flight shall be detailed in each clearance when deemed necessary.
b. “cleared flight planned route” – maybe used if identical to that filed in the flight plan.
c. The phrase “cleared flight planned route” shall not be used when granting a re-clearance.
Read-back of Clearances
The following items shall always be read back
a. ATC route clearances;
b. clearances and instructions to enter, land on, take off from, hold short of, cross, taxi and backtrack on any runway; and
c. runway-in-use, altimeter settings, SSR codes, level instructions, heading and speed instructions and transition levels
clearances or instructions, including conditional clearances,
shall be read back or acknowledged
controller shall listen to the read-back to ascertain that the
clearance or instruction has been correctly acknowledged by the flight crew
shall take immediate action to correct any discrepancies revealed by the read-back
At levels at or above 7 600 m (FL 250), speed adjustments should be
expressed in multiples of 0.01 Mach
At levels below 7600 m (FL 250), speed adjustments should be
in multiples of 20 km/hr (10 kt) based on indicated airspeed (IAS).
In order to establish a desired spacing between two or more successive aircraft, the controller should
first reduce the speed of the last aircraft, or increase the speed of the lead aircraft, then adjust the speed(s) of the other aircraft in order
Speed reductions to less than 460km/h (250 kt) IAS for turbojet aircraft during initial descent from cruising level should be applied only
with the concurrence of the flight crew
An arriving aircraft may be instructed to maintain its
maximum speed”, “minimum clean speed”, or a specified speed
Instructions for an aircraft to simultaneously maintain a high rate of descent and reduce its speed should be
avoided as such maneuvers are normally not compatible.
Arriving aircraft should be permitted to operate in a
clean configuration for as long as possible