A couple of years ago, I was involved in an incident at Caboolture. I sent RA-Aus a written statement. Later, *without them ever speaking to me at all*, the following turned up in my account when I logged in one day, the following appeared,
"Whilst conducting circuits the pilot observed a Piper Pawnee tug about 30 to 50 m to their right and then a couple of meters in front and higher than them. The pilot then made a radio call to the tug saying that they were directly beneath them on downwind. No response was heard. The pilot made a full stop to discuss with their instructor. Investigation revealed poor communication between the two aircraft contributed to the proximity event. Pilots are reminded of CAAP 166 - Operators at non-controlled airports for required procedures, calls and requirements."
After I discussed the matter with them, RA-Aus changed the occurrence report to the following.
"Whilst downwind the pilot observed a Piper Pawnee tow plane above them. The pilot then made a radio call to the tug saying that they were directly beneath them on downwind. No response was heard. The pilot made a full stop to discuss with their instructor. Review of this occurrence indicated that both pilots reported to make radio calls, however it is unknown why two-way communication was not established. The pilot of the tow plane was briefed to ensure they continue to see and avoid other aircraft when operating."
I was prompted to post this because someone on this forum (quite reasonably) posted that a technical person at RA-Aus said that people did not tell RA-Aus about human factors things so it was hard for RA-Aus to deal with them (or words to that effect). My point is that, when it comes to incident investigation, RA-Aus is pure amateur hour. A while ago I think I posted that there had been a year with fewer than average accidents and RA-Aus said in one of their emails how safe how safe flying was. IIRC, I emailed them back to let them know that about random being more irregular than people think and about regression to them mean. They emailed me to say that they would "engage with" me. I left them to it.