2 x A330s within 700ft at38,000 FT..............!..

[Downunder]

I think it is the antenna which is the issue. I was told to not mount it near my head (cockpit roof) and best to go under the floor.

 

Alumimium aircraft.

 

 

[frank marriott]

The installation on composite aircraft that I have looked at all have an alumimium ground plane on the base of the antenna mounted to the floor. This works / no interference.

 

 

[Gnarly Gnu]

I was wondering more about how much a high power transponder might fry your eyeballs Frank.

 

 

[mAgNeToDrOp]

Interim report? http://www.abc.net.au/news/2013-10-10/collision-avoidance-system-failed-to-activate-on-qantas-aircraft/5013874

 

and

 

http://www.atsb.gov.au/publications/investigation_reports/2013/aair/ao-2013-161.aspx

 

 

[Ultralights]

600 ft vertically, and 4.9 NM horizontally.. not exactly a near miss, or a near anything! just a breach of regulated separation standards.

 

 

[dutchroll]

4.9 nm is fine if you're paralleling another aircraft or flying an ultralight.

 

But it is most certainly not fine if you're in an A330 closing almost head-on at 15 nm per minute (each aircraft is doing about 7-8 nm/minute) having just been assigned to climb through the opposite direction aircraft's altitude. 5nm separation equates to 20 seconds flight time. Thus TCAS was just within its 25 second envelope for issuing an RA, exactly as it should.

 

And this minimum separation occurred at the exact moment the crew reacted to the TCAS Resolution Advisory. So that separation was already reducing, but after complying with the RA, it started increasing. As you would expect.

 

That is a near miss, I'm afraid.

 

 

[Zibi]

Seems it's not the first time this has happened in that area: http://www.recreationalflying.com.au/threads/qantas-flight-near-miss.62884/

 

 

[facthunter]

The system is designed with minimum standards of separation legislated for certain conditions. Ie above FL310? IF your autopilot is U/S you have an EXTRA 1,000 feet of vertical separation required. ( I mention this as an example). IF the separation standards are breached this means the system has FAILED, because these standards achieve the guaranteed margins of separation that controlled airspace provides.. This would warrant an inquiry regardless of how close aircraft passed to each other, because at that stage you are relying on luck. Nev