ACC PROCEDURE Flashcards
AIR TRAFFIC CONTROL CLEARANCE
Authorization for an aircraft to proceed under conditions specified by an air traffic control unit
AIRBORNE COLLISION AVOIDANCE
SYSTEM (ACAS)
aircraft system based on secondary surveillance radar (SSR) transponder signals which operate independently of groundbased equipment to provide advice to the pilot on potential conflicting aircraft that are equipped with SSR transponders
AIR TRAFFIC CONTROL SERVICE
A 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
- 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
An airspace of defined dimensions within which flight information service and alerting service are provided
FLIGHT LEVEL
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
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 MANEUVERING 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
Flight information service and alerting service shall be provided as follows
a) within a flight information region (FIR): by a flight information center,
b) within controlled airspace and at controlled aerodromes: by the relevant air traffic control units
Approach control Service shall be responsible for control of:
a) Arriving Aircraft that have been released to it by ACC
b) Departing aircraft until such aircraft are released to the ACC
Approach control Service shall be responsible for control of:
a) Arriving Aircraft that have been released to it by ACC
b) Departing aircraft until such aircraft are released to the ACC
Area control service shall be provided by
a) Area Control Center
b) Unit providing approach control service in a control area of limited extent which is designated primarily for approach control Service
Division of responsibility for control: Between a unit providing approach control service and a unit providing area control service
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
The responsibility of control for an aircraft is transferred between control sector/positions
a) Point
b) Level
c) Time
Contents of Clearances (In order)
- Aircraft identification
- Clearance Limit
- Route of Flight
- Levels of flight for the entire route or portion thereof and changes of level if required
- Other necessary instruction 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
An aircraft may be cleared to a level previously occupied by another aircraft after the latter has reported vacating it, except when
a) severe turbulence is known to exist
b) the higher a/c is effecting a cruise climb
c) the difference in a/c performance is such that less than the applicable separation minimum may result
The required flight plan and control data may be presented through the use of
a) paper flight progress strips
B) electronic flight progress strips
c) other electronic presentation forms
d) combination of presentation methods
Sufficient information and data shall be presented to enable controller to have a complete representation of the current air traffic situation. Give one data to be presented
Data to be presented shall include;
a) relevant information from flight plans;
b) position reports;
c) clearance and;
d) coordination data
Essential traffic information shall be given to controlled flights concerned whenever they constitute essential traffic to each other.
Essential traffic information shall include
a) direction of flight of aircraft concerned;
b) type and wake turbulence category (if relevant) of aircraft concerned;
c) cruising level of aircraft concerned; and d)
d) estimated time over the reporting point nearest to where the level will be crossed; or
e) relative bearing of the aircraft concerned in terms of the 12-hour clock as well as distance from the conflicting traffic; or
f) actual or estimated position of the aircraft concerned
Climbing or descending, same track. 19 km (10 NM) while vertical separation does not exist, provided:
a) each aircraft utilizes;
i. the same “on-track” DME station;
ii. “on-track” DME station and a collocated waypoint when other is utilizing GNSS; or
iii. the same waypoint when both aircraft are utilizing GNSS; and
b) one aircraft maintains a level while vertical separation does not exist; and
c) separation is established by obtaining simultaneous DME and/or GNSS readings
Expression of vertical position of aircraft For flights en-route, the vertical position of aircraft shall be expressed in terms of
a) flight levels at or above the lowest usable flight level;
b) altitudes below the lowest usable flight level
ATC Clearances are issued solely for ——– and ——– air traffic and are based on known traffic conditions which affect
safety in aircraft operation
expediting
maintaining
The control of an aircraft shall be transferred
from one ACC to the next ACC at the time of
crossing the ————– or at such other point, level or time has been agreed between the two units
common control area boundary
In assigning a cruising level an aircraft can cruise climb between two levels or ———
above a level
When initial portion of a flight will be uncontrolled, and that the subsequent portion will be subject to ATC, the aircraft shall obtain its clearance from ——-
the ATC unit in whose area controlled flight will be commenced
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
Change from instrument flight rules (IFR) flight to visual flight rules (VFR) flight is only acceptable when a message initiated by the pilot-in-command containing the specific expression ———-
“CANCELLING MY IFR FLIGHT
When first portion of a flight will be subject to ATC, and that the subsequent will be uncontrolled, the aircraft shall normally be cleared to until what point?
at which the controlled flight terminates
Vertical separation is obtained by
requiring aircraft using prescribed altimeter setting procedures to operate at different levels expressed in terms of flight levels or altitudes
Cruising levels of aircraft flying to the same destination shall be assigned in a manner that
will be correct for an approach sequence at destination
Give at least one (1) example of clearance limit: (Name of appropriate significant point, name of aerodrome, controlled airspace boundary.)
