CAP493 lists

Question 1

What are the objectives of Air Traffic Services?

Answer 1

1. Prevent collisions between aircraft
2. Prevent collisions between aircraft on the manoeuvring area and obstructions on that area
3. Expedite and maintain and orderly flow of air traffic.
4. Provide advice and information useful for the safe and efficient conduct of flights.
5. Notify appropriate organisations regarding aircraft in need of search and rescue aid, and assist such organisations as required.

Question 2

What shall a conditional clearance contain?

Answer 2

1. Callsign of the aircraft or vehicle being given the clearance
2. The condition “behind”
3. Identification of the subject of the condition
4. The clearance
5. A brief reiteration of the condition

Question 3

What should aerodrome control co-ordinate with approach control?

Answer 3

1. Departing IFR flights

2. Arriving aircraft which make their first call on the tower frequency

Question 4

What shall approach control co-ordinate with aerodrome control?

Answer 4

1. Aircraft approaching to land (if necessary a landing clearance)
2. Arriving aircraft which are to be cleared to visual holding points.
3. Aircraft routeing through the traffic CCT

Question 5

What are the 9 items of Essential Aerodrome Information?

Answer 5

1. Construction work or maintenance on the maneuvering area
2. Rough portions of the maneuvering area and whether marked or not
3. Failure or irregular functioning of the aerodrome lighting system.
4. Failure or irregular functioning of approach aids
5. Aircraft parked close to the runways or taxiways engaged in ground running of engines
6. water, snow, slush, ice or frost on a runway, a taxiway or an apron
7. in snow and ice conditions: information concerning anti-icing or de-icing liquid chemicals or other contaminants or sweeping and/or sanding of runways, taxiways and aprons;
8. Bird Formations
9. Location and operational status of arrester gear installation.

Question 6

What are the responsibilities of aerodrome control?

Answer 6

Aerodrome Control shall issue information and instructions to aircraft under its control to achieve a safe, orderly and expeditious flow of air traffic with the objective of:

(1) Preventing collisions between:
(a) aircraft flying in, and in the vicinity of, the ATZ;
(b) aircraft taking-off and landing; (c) aircraft and
vehicles, obstructions and other aircraft on the
manoeuvring area.
(c) Aircraft, Vehicles, obstructions and other aircraft on the manoeuvring area

(2) Assist in preventing collisions between aircraft on
the apron.

Question 7

What are the specific responsibilities of aerodrome control? (6)

Answer 7

1. Notifying emergency services as per local instructions
2. Informing aircraft under its control of any depletion of the aerodrome emergency services.
3. Providing an approach control service when carrying out functions delegated by approach control.
4. Supplying the following information to approach control and where necessary approach radar control:
   (a) Pertinent data on IFR, SVFR and VFR traffic
   including departures, Missed apps and Overdue
   aircraft.
   (b) Appropriate items of essential aerodrome
   information
5. Informing the aerodrome operator when it becomes apparent that there is a deterioration in the state of the aerodrome or its associated facilities for which the aerodrome operator is responsible
6. Initiating overdue action at aerodromes where no approach control unit is established

Question 8

What are the conditions for multiple line-ups using different points of the runway?

Answer 8

1. It is during daylight hours
2. All aircraft are continuously visible to the aerodrome controller.
3. All aircraft are on the same RTF freqency
4. Pilots are advised of the number ahead in the departure sequence, and the position/runway from which they are going to depart

Question 9

What are the conditions for a landing aircraft to touch down before the preceeding landed aircraft has vacated the runway?

(Land After Procedure)

Answer 9

(1) the runway is long enough to allow safe separation between the two aircraft and there is no evidence to indicate that braking may be adversely affected;
(2) it is during daylight hours;
(3) the preceding landing aircraft is not required to backtrack in order to vacate the runway;
(4) the controller is satisfied that the landing aircraft will be able to see the preceding aircraft which has landed, clearly and continuously, until it has vacated the runway; and
(5) the pilot of the following aircraft is warned. Responsibility for ensuring adequate separation rests with the pilot of the following aircraft.