TTX – 18

"information" and "clearances"

"safe", "orderly" and "expeditious"

"preventing collisions"

1. Aircraft flying in the aerodrome traffic circuits around an aerodrome
2. Aircraft operating on the manoeuvring area
3. Aircraft landing or taking off
4. Aircraft and vehicles operating on the manoeuvring area
5. Aircraft on the manoeuvring area and obstructions on that area

Approach owns airspace.

Aerodrome Control is the airspace operator (does NOT own airspace).

- Aircraft is in the vicinity of the aerodrome and
   1. it is considered that approach and landing will be completed in visual reference to the ground, OR
   2. has reached uninterrupted VMC.

OR

- Aircraft is at a prescribed point or level.

OR

- Aircraft has landed.

- When VMC prevails in the vicinity of the aerodrome
   1. Prior to the time the aircraft leaves the vicinity of the aerodrome, OR
   2. Prior to the aircraft entering IMC, OR
   3. When the aircraft is at a prescribed point or level

- When IMC prevails at the aerodrome
   1. Immediately after the aircraft is airborne, OR  
   2. When the aircraft is at a prescribed point or level
 

- direct negotiation and agreement for individual flights
- standing agreement made in accordance with local instructions
- use of permanent procedures agreed between national aviation authorities
- electronically

Standard clearances without prio coordination.

Prio coordination required only in the event of variations to standard clearances.

Keep APP informed of departure sequence and RWY to be used.

Assigned SID must be displayed to ADC, APP and ACC sector.

- approach control
- aircraft under its control
- aerodrome fire service
- contractors working on the aerodrome who will be affected by the change
- other agencies according to local instructions

- last arrival on present runway
- last departure from present runway
- first arrival on new runway (first departure on new runway)

Request new IFR departure clearance (SID)
Advice APP of new IFR sequence

Give priority to an aircraft landing or in the final stages of an approach to land over an aircraft ready to depart.

in the order aircrafts are ready for departure

You may deviate from this order so as to facilitate the maximum number of departures with the least average delay.

- ATFM slots
- departure routes, runway requirements, noise abatement
- aircraft performance
- wake turbulence separation

Responsibility of flight crew to maintain sufficient distance from other aircraft taxiing on same taxiway.
Responsibility of ground vehicles to maintain sufficient distance from aircraft and other vehicles on same taxiway.

Issue traffic information when visibility is such that the presence of another aircraft may not be apparent to the pilot.
Inform taxiing aircraft of the presence, position and intentions of known vehicles in their close vicinity.

- conditional clearance to only one acft at the time
- subject of condition next movement passing in front of acft
- daylight only
- solely to acft
- acfts concerned continuously visible to controller AND pilot
- each conditional clearance relate to one subject only

- intersections must be visible to controller
- minimum visibility prescribed in local procedures
- local considerations shall be defined (airport layout, equipment etc.)
- aircraft involved on SAME frequency
- flight crew shall be advised of position of any essential traffic on same runway
- runway slope shall not render visibility
- apply wake turbulence separation
- pilot's readback shall contain: runway designator, name of intersection, number in departure sequence

- adequate separation can be provided by ADC when each acft continuously visible to him, OR

- each aircraft continuously visible to the flight crews of other aircraft and crews report that they can maintain own separation, OR

- in case of acft following another, flight crew of succeeding acft report other aircraft in sight and separation can be maintained

Controlled traffic, to which the provision of separation by ATC is applicable, but which, in relation to a particular controlled flight, is not or will not be separated therefrom by the appropriate minima.

Any aircraft from which a controlled flight should be separated but which is or will be closer to that aircraft than the prescribed minima.

- callsign
- TRAFFIC / ADDITIONAL TRAFFIC
- relative position of conflicting traffic (12-hour clock system and distance in NM)
- direction of flight
- type of aircraft
- relative position above/below in ft or level of conflicting traffic

- callsign
- TRAFFIC / ADDITIONAL TRAFFIC
- description of traffic (type, colour etc.)
- position and direction of movement

Information regarding the manoeuvring area and its associated facilities which is necessary to ensure the safe operation of aircraft.

Should be passed to aircraft whenever possible prior to start-up or taxi and prior to commencement of final approach.

- construction or maintenance work on manouevring area
- rough or broken surfaces of RWY/TWY
- snow or ice, snow bands or drifts on/adjacent RWY/TWY
- information about sweeping/sanding of RWY/TWY
- water on runway
- temporary hazards; parked acft, ground running of engines, birds etc.
- failure or irregular operation of part or all aerodrome lighting system
- information on location and operational status of any arrester gear installation
- any other pertinent information