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Separation issue involving Boeing 737, VH-VXH, and Airbus A320, VH-VGV, near Darwin

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Separation issue involving Boeing 737, VH-VXH, and Airbus A320, VH-VGV, near Darwin

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Old 21st Apr 2023, 03:56
  #101 (permalink)  
 
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Originally Posted by missy
Perhaps RAAF resources have been diverted to this project Deployable Air Traffic Solutions

Perhaps 452 Squadron isn't operating with a full complement of personnel.
Well they should relinquish providing control services at a mostly civilian airport then.
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Old 21st Apr 2023, 09:29
  #102 (permalink)  
 
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Except that it was a military airport first, and always has been. Maybe the Civvies should move to a civil airport if they are that concerned with the way it's run...........Oh wait.
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Old 21st Apr 2023, 10:52
  #103 (permalink)  
 
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Originally Posted by Chronic Snoozer
Classic normalisation of deviance?
Agreed.
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Old 21st Apr 2023, 11:03
  #104 (permalink)  
 
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Originally Posted by Traffic_Is_Er_Was
Except that it was a military airport first, and always has been.
Yes and no. DCA took over air traffic control responsibility at Darwin's military aerodrome from the RAAF when civil operations moved there during the 1950's (from the nearby Parap Aerodrome).
DCA.
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Old 21st Apr 2023, 12:14
  #105 (permalink)  
 
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And….

It’s either Commonwealth owned or it’s … Commonwealth owned.

Playing pass-the-risk-parcel between Commonwealth entities for risks in Commonwealth airspace and on Commonwealth-owned airports is so very Australian.
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Old 21st Apr 2023, 16:06
  #106 (permalink)  
 
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Originally Posted by Traffic_Is_Er_Was
Except that it was a military airport first, and always has been. Maybe the Civvies should move to a civil airport if they are that concerned with the way it's run...........Oh wait.
96% of movements at YPDN are non-military. I’m sure they’d cope with an Airservices tower. Whilst AA may have issues in enroute centres at least they can keep their 24/7 towers actually open 24/7.

If they won’t relinquish control then drop the ongoing Restricted Area nonsense and declare it a permanent CTAF after hours.
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Old 21st Apr 2023, 20:15
  #107 (permalink)  
 
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Originally Posted by missy
Yes and no. DCA took over air traffic control responsibility at Darwin's military aerodrome from the RAAF when civil operations moved there during the 1950's (from the nearby Parap Aerodrome).
DCA.
But still always RAAF Darwin. DCA only did TWR ATC mid 50's-1965.
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Old 21st Apr 2023, 21:42
  #108 (permalink)  
 
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Originally Posted by dr dre
96% of movements at YPDN are non-military. I’m sure they’d cope with an Airservices tower. Whilst AA may have issues in enroute centres at least they can keep their 24/7 towers actually open 24/7.

If they won’t relinquish control then drop the ongoing Restricted Area nonsense and declare it a permanent CTAF after hours.
Yes please, one or the other

Control services or completely GTFO and have a pure ctaf not this half baked BS
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Old 22nd Apr 2023, 02:19
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And if `YPDN was a CTAF at night between 1230 and 2030 who would you like to provide the IFR traffic info, etc?

RAAF DN or BN Centre?

and what service would that be?

- like MNG CTAF,
- Ballina.SFIS
- like RAAF Darwin Flightwatch as per TRA
- None of the above…feel free to nominate service desired
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Old 22nd Apr 2023, 02:53
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GF, either RAAF DN or BN Centre, however BN CTR would be preferable given the poor standard of Flight Information Service+DTI provided by the RAAFie (assuming she was RAAF) on the night in question.

The service would be the same as that provided at hundreds of other standard Class G+ plus CTAFs we have in Aus.

But as I said before, I suspect that Internationals can't/won't operate into Class G/CTAFs (International JQ was inbound just after this non-event) so the powers that be had to come up with something else (that ended up being more convoluted).
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Old 22nd Apr 2023, 07:44
  #111 (permalink)  
 
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Oztronauts can whinge all they like here but the fact was it’s F,ing Class G, there is no f’ing separation requirements, so it’s a non issue, ATSB should not be investigating loss of separation as it was Class G, unless there was a TCAS event. It is that simple….
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Old 22nd Apr 2023, 07:53
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Originally Posted by Angle of Attack
Oztronauts can whinge all they like here but the fact was it’s F,ing Class G, there is no f’ing separation requirements, so it’s a non issue, ATSB should not be investigating loss of separation as it was Class G, unless there was a TCAS event. It is that simple….
Except it isn't G.
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Old 22nd Apr 2023, 07:54
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What the hell is it then? You get a clearance to enter uncontrolled airspace, that’s pretty much G in my mind.
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Old 22nd Apr 2023, 08:54
  #114 (permalink)  
 
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sunnySA is correct. It’s not G. It’s a Romeo.

Since when did anyone need an ‘approval’ or ‘authority’ or the ‘c’ word to enter class G? I’ve heard the ‘c’ word used when an aircraft is going to temporarily leave G then return to controlled airspace, but never to merely enter G. Who is required to be equipped with TCAS in G?

There are plenty of places that are advertised as being G outside TWR HRS. This isn’t one of those places.

Your question: “What the hell is it then?”, points up part of the problem, albeit inadvertently I suspect.
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Old 22nd Apr 2023, 09:02
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Originally Posted by AoA
Oztronauts can whinge all they like
Oztronauts got nothing to do with it. We're the ones complaining about the messed-up setup. If we Ozstranauts were in charge we wouldn't be having this discussion. I strongly suspect the perpetrator of this "catastrophe" will have egg on their face when the performance of "Flightwatch" is analysed.
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Old 22nd Apr 2023, 10:24
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Originally Posted by Capn Bloggs
...when the performance of "Flightwatch" is analysed.
Interesting, what is the performance "standard"?

I've listened to 30 minutes or so around the "occurrence" and then another 30 minutes from a couple of nights later, and the R/T of FLIGHTWATCH is very different, as is the R/T of a number of the flight crew.

If we applied LOSA and NOSS to TRA operations (impossible I know), then I'm sure we'd discover vast differences in the way individual pilots, and Flightwatchers operate.
LOSA
NOSS

LOSA and NOSS are both based on the Threat and Error Management (TEM) framework.
What are the threats? What are the errors?
Has an Australian airline conducted LOSA on the flight into DRW? Has RAAF (or AsA) conducted NOSS for airspaces operating TIBA?
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Old 22nd Apr 2023, 11:00
  #117 (permalink)  
 
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Interesting, what is the performance "standard"?
The ICAO "Flight Information Service", as stated in the NOTAM. Plus DTI?

Originally Posted by MIssy
I've listened to 30 minutes or so around the "occurrence" and then another 30 minutes from a couple of nights later, and the R/T of FLIGHTWATCH is very different
Maybe somebody had a re-think.

I doubt that LOSA would apply here; I understand LOSA is more of a systemic assessment of the overall operation of a company, not a individual incident investigation. That said, it should have been risk-assessed and procedures published (as Iccy has mentioned).
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Old 22nd Apr 2023, 12:59
  #118 (permalink)  
 
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What are the standards used by RAAF Flightwatch? There's no such thing in the civil sphere anymore.
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Old 22nd Apr 2023, 13:03
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Originally Posted by Capn Bloggs
The ICAO "Flight Information Service", as stated in the NOTAM. Plus DTI?
FIS
Flight Information service is a service provided for the purpose of giving advice and information useful for the safe and efficient conduct of flights.
(ICAO Annex 11: Air Traffic Services)
A flight information service may be provided on its own or in conjunction with an air traffic control service.

Flight information service includes the provision of pertinent:
-SIGMET and AIRMET information;
-Information concerning pre-eruption volcanic activity, volcanic eruptions and volcanic ash clouds;
-Information concerning the release into the atmosphere of radioactive materials or toxic chemicals;
-Information on changes in the serviceability of navigation aids;
-Information on changes in condition of aerodromes and associated facilities, including information on the state of the aerodrome movement areas when they are affected by snow, ice or significant depth of water;
-Information on unmanned free balloons; and,
-Any other information likely to affect safety.

as well as information concerning:
-Weather conditions reported or forecast at departure, destination and alternate aerodromes;
-Collision hazards, to aircraft operating in airspace Classes C, D, E, F and G;
-For flight over water areas, in so far as practicable and when requested by a pilot, any available information such as radio call sign, position, true track, speed, etc., of surface vessels in the area.

So, the relevant ones appear to be "in conjunction with an air traffic control service, "any other information likely to affect safety" and "collision hazards, to aircraft operating in airspace Classes C, D, E, F and G".

I'm not sure we (collective we) have established the class of airspace, G plus TCAS?

Originally Posted by Capn Bloggs
Maybe somebody had a re-think.
More likely the individual differences in technique, experience, interpretation, projection, prioritisation, judgement.

Originally Posted by Capn Bloggs
I doubt that LOSA would apply here; I understand LOSA is more of a systemic assessment of the overall operation of a company, not an individual incident investigation.
Fair point. Perhaps it's an issue for CASA, or DASA.

DASA
But DASA is responsible for enhancing and promoting the safety of military aviation. This is achieved through a Defence Aviation Safety Program (DASP), which supports compliance with statutory safety obligations and assures the effective management of aviation-safety risks. (my bolding)

Originally Posted by Capn Bloggs
That said, it should have been risk-assessed and procedures published (as Iccy has mentioned).
Agreed. TRA, SID/STAR, NAP, RRO. What could go wrong? The latter two are certainly based on normal operations with ATC providing a control service. Given the majority of the traffic appears to be to/from the south then 29 only operations would provide more opportunities for profile separation segregation.
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Old 22nd Apr 2023, 13:29
  #120 (permalink)  
 
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"Mr Hart, What a mess!".
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