OCS Flashcards
Define ‘clearance limit’
- aerodrome of first intended landing, significant point or airspace boundary
- if intending to carry out instrument approaches at several aerodromes, clearance limit is the first aerodrome
- MOA or other suitable point
- if in and out of controlled airspace, clearance limit is the first aerodrome of intended landing. clearance only applies to portion inside controlled airspace, traffic info given for portion outside controlled airspace
What are the back coordination requirements for following sectors:
a) Brisbane b) Nadi c) Oakland d) Tahiti e) Santiago
10 minutes for all
Describe how controllers may extend a protected profile for an aircraft beyond it’s ETA at destination, including any provisos related to the procedure
issuing a clearance extending the route beyond current end point or to hold at end point. clearance must be issued before the aircraft reaches the end point
OCS does not detect conflicts with respect to holding pattern procedures. Describe how a controller may protect a holding aircraft and what guidance is provided with respect to holding pattern radius
creation of airspace reservation centred on the holding point. 20NM radius - provides additional 50NM separation
What shall controllers do when OCS detects a conflict between aircraft in uncontrolled airspace?
pass traffic information
What procedures should an oceanic controller follow so that OCS will detect conflicts with VFR flights?
enter an appropriate block altitude
- F030 to F130 for unpressurised aircraft
- F030 to F245 for pressurised aircraft
What rules are associated with the use of autoroute?
- shall be selected on at all times
- should be turned off following coordination
- may be turned on as a reminder
What actions must a controller follow when MANUALLY cancelling or deleting a flight plan?
- use FPEA window accessed from the datablock or strip
- prior to confirming deletion - check aircraft position on ASD
What is the agreed procedure when issuing levels to Southbound Antarctic flights?
different levels until preceding aircraft is beyond PSR time or ETA at DEST
May oceanic controller clear non-RVSM aircraft to climb or descend through the RVSM stratum within the Auckland Oceanic FIR?
yes
When procedure should be followed when OCS detects a conflict extending across and international FIR boundary?
if responsibility is being delegated the phraseology to be used is
YOUR SEPARATION ……..
What procedure should be followed when OCS detects a conflict contained wholly within an adjacent FIR?
If start or finish times are within 10 minutes of boundary:
“OCS SHOWS A CONFLICT BETWEEN ….. AT FLIGHT LEVEL………”
Detail the 3 occasions where non-RVSM civil aircraft may flight plan with the intention of operating in or transiting through the RVSM stratum
- being delivered for initial acceptance, change of ownership or lease
- was formerly RVSM, has experienced equipment failure and is being flown for repair/approval or transporting a spare engine/strut assembly externally
- being utilised for mercy or humanitarian purposes
When may an RVSM level be used outside the RVSM stratum?
only as part of a block clearance
When is a revised non-RVSM clearance required to be issued to an aircraft operating within the RVSM stratum?
- encountering weather turbulence that affects capability to maintain CFL
- experiencing wake turbulence
- experiencing distracting system alerts
Give an example of the descent clearance issued by air-ground for flights destined NCRG, NFTF, NIUE, NSFA and NSTU from above F245
WHEN READY/AT OR AFTER ….. DESCENT TO F250. EXPECT FURTHER DESCENT FROM ….. TOWER. AT …… CONTACT ……….
What is provision of an alerting service to aircraft departing YSNF based on?
EOBT filed in flight plan
What is the transfer of control (release) and RTF contact points for aircraft descending into NFTF from the auckland oceanic FIR?
F245
RTF top of descent time
What is the transfer of control (release) and RTF contact points for aircraft descending into NSTU from the auckland oceanic FIR and to whom is it released?
F245
RTF top of descent time
released to Faleolo tower
What is the transfer of control (release) and RTF contact points for aircraft departing NSFA and entering the auckland oceanic FIR?
common lateral boundary or F245
RTF passing F150
What is the coordination point for flights proceeding from the Auckland Oceanic FIR into the NCRG TMA/Cook sector?
destination or first waypoint within the Rarotonga TMA or Cook Sector
Explain the process to be followed when a PAC message is received from NSFA for an aircraft departing NSFA and entering NFFN airspace within 30 minutes of departure
a PAC is sent to Nadi with a climbing condition prior to departure. Auckland is to initiate verbal coordination if ACP is not received when aircraft is within 20 minutes of entering Nadi FIR
With respect to an aircraft’s re-entry into the Auckland OCA, when is coordination considered to be complete for a hemstitch flight that vacates the Auckland OCA into the Nadi OCA and less than 30 minutes later re-enters the Auckland OCA?
when coordination for initial entry is completed
State which of the following neighbouring states apply 50NM lateral separation between RNP10 aircraft
a) Brisbane b) Nadi c) Oakland d) Tahiti e) Santiago f) McMurdo
All of them
Can Tahiti apply 30NM lateral separation between two RNP4 aircraft and are there any conditions?
Yes - meeting RCP240/RSP180
Should an NDA message be sent prior to sending a CAD and if so why?
Yes - to avoid rejection of the connection request from the next controlling ATSU
How should controllers respond to an emergency CPDLC message?
using voice or CPDLC
ROGER MAYDAY or
ROGER PAN
When restarting the main OCS platform, what is the difference between a hot start and a cold start?
hot - restarted using the last system “snapshot” data
cold - using data recovered from the sync servers
how are OCS failure conditions categorised?
partial failure
OCS main platform stall
What procedure shall a controller follow when it is considered than an OCS main platform stall is likely, or a partial failure has occurred and OCS is operating without an operational standby workstation or FDP?
- relocate if necessary to spare workstation and advise TC
- if not redundancy of failed component, solve all conflicts including orange
- notify TL if likely to affect operations
Name the 3 OCS contingency phases
- Recovery
- Limited ATS
- restoration of ATS delivery to the OCS
State the objective of the OCS ‘Recovery’ phase
to ensure a safe air traffic environment until aircraft have vacated the area
During the OCS ‘Recovery’ contingency phase, when are aircraft permitted to enter the Auckland OCA?
- aircraft already coordinated, or
- limited procedures are activated, or
- either OCS main or reserve platform has been restored to service
What is the objective of the OCS ‘limited ATS’ contingency phase? What restrictions apply to aircraft during this phase?
to provide a safe traffic environment to the extent possible given the circumstances and allow aircraft to operate within the Auckland oceanic FIR.
- airspace is class A
- flow management procedures apply
- ATS fixed routes only
