Define an ADS Contract (ADS-C).
The means by which the terms of an ADS-C agreement will be exchanged between the ground system and the aircraft, via a datalink, specifying under what conditions ADS-C reports would be initiated, and what data would be contained in the reports.
What MET information is required to be given to aircraft?
- SIGMET
- SPECI
- TAF ammendments
- significant information received from other flights
- altimeter settings
- take off and landing reports when not on an ATIS
Define area of conflict.
For lateral separation purposes, an area within which horizontal separation between particular flights does not exist.
Define CPDLC.
A means of communication between controller and pilot, using data link for ATC communications.
Provided safety is not jeopardised, how are traffic priorities applied?
- an aircraft known or believed to be in a state of emergency or impaired operation has priority over all other aircraft
- an aircraft landing or in the final stages of an approach to land, has priority over a departing aircraft
- an aircraft landing or taking off has priority over taxiing aircraft
During coordination it may be neccessary to specify or confirm who is providing separation between two or more flights. What is the phraseology used in this situation?
“YOUR SEPARATION (callsign of traffic from which separation is required)”
What phraseology is used to request an early release?
“MAY I ASSUME CONTROL OF (callsign)” or
“REQUEST RELEASE (callsign)”
After an early release has been effected, when is verbal coordination required?
Prior to an accepting controller climbing an arriving aircraft, descending a departing aircraft or instructing an aircraft to hold while the aircraft is still in the transferring controller’s airspace.
What is the phraseology used to effect a transfer of radio guard?
“AT [or PASSING] (time/position/level) CONTACT (unit or operating position) (frequency)”
When would you consider making a transfer of radio guard prior to the aircraft reaching the transfer of control point?
To enable the accepting controller to issue instructions which would become effective at the transfer of control point.
Where should the RTF contact point be?
At the transfer of control point unless other arrangements are agreed to (verbally or in LOA/LUO).
When can a controller withhold an ATC clearance?
- for traffic reasons, when ATC cannot accommodate traffic additional to that already accept due to traffic congestion, limitations of equipment, procedures, weather or environmental conditions, emergencies or other similar factors
- when instructed by the Group Manager ANS delivery provided that:
- a clearance shall not be withheld unless the aircraft is on the ground and the clearance is for entry onto the manouevring area
- normal ATC service shall be provided for any aircraft entering the manouevring area without an ATC clearance
What are the instructions contained in a clearance to an IFR flight intended to achieve?
- provide separation:
- where prescribed, between the aircraft concerned and other controlled flights
- from SUA and GAA as required by RAC 5
(except flights departing under radar control, may be cleared at a lower level and then climb under radar control)
- enable the flight to comply with promulgated procedures for IFR flights in the AIPNZ
- conform with terms of acceptance for next controlling authority
- conform, where possible, with the details requested in the flight plan and the Air Traffic Management route requirements as specified in the AIPNZ
- where the aircraft has flight planned for flight within controlled airspace, contain the flight within the lateral boundaries of controlled airspace, unless applying the criteria for direct routing on unevaluated routes
(if a clearance would involve a signification delay, a pilot may be offered an alternative which would take the aircraft out of controlled airspace, provided the pilot is advised that the clearance will take the aircraft outside controlled airspace and the pilot confirms acceptance of the clearance)
What is the phraseology to be used if you are unable to clear a flight via the requested or flight planned route or cruising level?
“(route/level) NOT AVAILABLE DUE (reason) [ALTERNATIVE(S) IS/ARE……. ADVISE]”
The clearance limit of an IFR flight must be one of three places. Name them.
- first intended landing
- significant point
- airspace boundary
The use of the term Flight Planned Route should be limited to which flights?
- oceanic flights
- flights where the route is identified with lats and longs
- flights with a long and complicated route field
When may controllers issue a clearance for flights to operate at non-standard levels and what are the provisos?
- verbal approval must be obtained from the next sector/unit prior to the aircraft reaching the sector boundary
- aircraft at standard levels are afforded priority over aircraft at non-standard levels
- the words “NON-STANDARD” shall prefix the level except for departing oceanic flights that are at standard levels for entry into the oceanic FIR
What is the proviso for allowing an aircraft to operate within a block of levels?
A flight may be cleared to operate within a block of levels, provided that other aircraft are not denied use of a level within the block.
What is an Oceanic Transition?
Aerodrome specific ATM procedures linking published instrument departure procedures with the departing aircraft’s planned entry into the Auckland Oceanic FIR.
When shall a verbal revision be passed to a radar sector?
When the CPL or estimate has been passed to the next sector, the next sector shall be advised of any change to the coordinated level, except where specified in LUO/LOA.
Certain procedures apply to all flights planning to operate in the Auckland Oceanic FIR. What are these procedures?
- any advice that an aircraft cannot meet the RNP or RVSM requirements shall be passed to OAC
- route clearances shall be issued at the last acknowledged RFL except at aerodomes where level requirements are specified in LUO/LOA
- an intermediate level shall not be inserted in the flight plan CFL field
- for aircraft requesting block levels, the CFL shall be the lower of the block levels. Any block clearance shall be pre-coordinated with OAC
- on acceptance of control of a flight and after AIDC coordination with OCS is complete, the last area sector shall seek approval for the CFL from OAC. OAC shall approve the level or coordinate another, ensuring that a conflict probe at the approved CFL has been made
- if approval of a CFL is not obtained, the area controller shall hold the aircraft in domestic airspace until a level is approved
- the last area sector shall ensure the aircraft is level at the approved CFL, or for flights with block clearances, within the OAC-coordinated block of levels, prior to entering the Auckland Oceanic airspace, unless coordinated otherwise
What phraseology for an approval request, is used by the transferring controller?
“APPROVAL REQUEST (callsign, level) VIA (significant point)(any other relevant details)”
What phraseology for an approval request, is used by the accepting controller?
“(callsign)(level) APPROVED [conditions/restrictions]”
“(callsign)(level) UNABLE TO APPROVE (alternative instructions/reasons)”
When arranging separation, what allowance must be made?
For time involved in compilation and transmission of clearances to ensure required separation minimum is not infringed.
