Perth Airport at 0730 on the 22/2/10

[TrainFreak]

Just wondered if something happened this morning at Perth Airport around 0730. I think the channel Seven Chopper was there (and several others accordering to some people in the area). After several minutes one of the choppers left and then you could hear planes starting up. Does anyone know what was happening. I don't know wether it was for some footage for the perth airport report on 7.