ACC PROCEDURE Reviewer Flashcards
STRAYED AIRCRAFT
An aircraft which has deviated significantly from its intended track or which reports that it is lost
UNIDENTIFIED AIRCRAFT
An aircraft which has been observed or reported to be operating in a given area but whose identity has not been established
STCA
Short Term Conflict Alert
ACAS
Airborne Collision Avoidance System
MSAW
Minimum Safe Altitude Warning
HEAVY (H)
— aircraft types of 136 000 kg or more, with the exception of aircraft types listed in ICAO Doc 8643 in the SUPER (J) category
MEDIUM (M)
aircraft types less than 136 000 kg but more than 7000 kg
LIGHT (L)
aircraft types of 7 000 kg or less
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
Approach control service shall be responsible for the control of
a) arriving A/C that have been released to it by ACC
b) departing A/C until such A/C are released to the ACC
responsibility for the control of an aircraft shall be transferred from the ATC unit to the next unit
a) at the time of crossing the common control area boundary.
b) at such other point or time as has been agreed between the two units
Means by which lateral separation may be applied
a) By reference to the same or different geographical locations
b) By use of NDB/VOR or GNSS on intersecting tracks
c) By use of different navigation aids or methods
wake turbulence four categories according to the maximum certificated take-off mass
a. SUPER (J) — aircraft types specified as such in ICAO Doc 8643, Aircraft Type Designators;
b. HEAVY (H) — aircraft types of 136 000 kg or more, with the exception of aircraft types listed in ICAO Doc 8643 in the SUPER (J) category;
c. MEDIUM (M) — aircraft types less than 136000 kg but more than 7 000 kg; and
d. LIGHT (L) — aircraft types of 7 000 kg or less.
contents of an estimate message (in sequence)
A. A/C ID
B. TYPE OF A/C
C. ESTIMATE TO A SIGNIFICANT POINT
D. AERODROME OF DEPARTURE
E. FLIGHT LEVEL
F. ANY OTHE NECESSARY INFO
In the event that the control frequency is inadvertently blocked by an aircraft transmitter, the following additional steps should be taken
a. attempt to identify the aircraft concerned;
b. if the aircraft blocking the frequency is identified, attempts should be made to establish communication with that aircraft,
• on the emergency frequency 121.5 MHz,
• by SELCAL,
• through the aircraft operator’s company frequency if applicable,
• on any VHF frequency designated for air-to-air use by flight crews or
• any other communication means or,
• if the aircraft is on the ground, by direct contact
c. if communication is established, the flight crew shall be instructed to take immediate action to stop inadvertent transmissions on the affected control frequency
Sufficient information and data shall be presented to enable the controller to have a complete representation of the current air traffic situation
Data to be presented shall include
a.) relevant information from flight plans;
b.) position reports;
c.) clearance
d.) coordination data.
If the aircraft fails to indicate that it is able to receive and acknowledge transmissions, separation shall be maintained between the aircraft having the communication failure and other aircraft, based on the assumption that the aircraft will:
if in visual meteorological conditions:
- continue to fly in VMC
- land at the nearest suitable aerodrome;
- report its arrival to the appropriate ATC unit
A clearance expiry time shall be specified by ACC if a delayed departure would conflict traffic not released to Approach
T
Air Traffic Advisory Service is a service for the purpose of giving advice & information useful for safe & efficient conduct of flights
Air traffic advisory service. A service provided within advisory airspace to ensure separation, in so far as practical, between aircraft which are operating on IFR flight plans
ACCs may forward from center-to-center necessary flight plan and control informatio
ATC units shall forward from UNIT-to-UNIT, as the flight progresses, necessary flight plan and control information
APP shall advise ACC of missed approaches
When an approach has been missed the ACC shall, IF AFFECTED by the missed approach, be advised immediately
The responsibility for the control of an aircraft shall be transferred from the ATC unit to the next unit at least 5 min from the time of crossing the common control area boundary
The responsibility for the control of an aircraft shall be transferred from the ATC unit to the next unit
a. AT the time of crossing the common control area
boundary.
b. at such other point or time as has been agreed
between he two units
Clearance Limit are the following
a. name of appropriate significant point
b. aerodrome
c. uncontrolled airspace boundary
Clearance Limit are the following
a. name of appropriate significant point
b. aerodrome
c. CONTROLLED airspace boundary
The separation minima should be applied in the event of unlawful interference
F
Vertical separation should be provided at least 5 minutes prior to and after the aircraft are estimated to pass or are estimated to have passed
F
ACC shall keep Approach promptly advised of anticipated delay to departing traffic due to congestion
T
A/C established on adjacent holding patterns shall not be separated by applicable vertical separation minima
F
means of communication that can be used to contact the aircraft blocking frequency
• on the emergency frequency 121.5 MHz,
• by SELCAL,
• through the aircraft operator’s company frequency if applicable,
• on any VHF frequency designated for air-to-air use by flight crews or
• any other communication means or,
• if the aircraft is on the ground, by direct contact
Required flight plan and control data may be presented through the use of
a. paper flight progress strips
b. electronic flight progress strips
c. by other electronic presentation forms
d. by combination of presentation methods
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 aircraft is effecting a cruise climb;
c) the difference in aircraft performance is such that less than the applicable separation minimum may result
Contents of voice position reports
a) aircraft identification
b) position;
c) time
d) flight level or altitude, including passing level and cleared level if not maintaining the cleared level
e) next position and time over
f) ensuing significant point
Coordination procedures shall be applied only to IFR flights
F
Flight information service and alerting service shall be provided as follows
a) within a flight information region (FIR): by a flight information centre,
b) within controlled airspace and at controlled aerodromes
The 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 a
at a point, level or time, as specified in local instructions
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
——-1) estimated time over the reporting point nearest to where the level will be crossed; or
——-2) relative bearing of the aircraft concerned in terms of the 12-hour clock as well as distance from the
conflicting traffic; or
——-3) actual or estimated position of the aircraft concerned
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; and
b) altitudes below the lowest usable flight level;
