(Darren England/AAP PHOTOS)Two crew members onboard an Australian-owned firefighting helicopter have died in a mid-air crash. The choppers leased from Sunshine Coast-based company McDermott Aviation Group were involved in the tragedy as they fought the blaze west of Athens. The other chopper, with two crew members reportedly from Greece and Great Britain, managed to make an emergency landing. McDermott Aviation confirmed two of their choppers were involved in the fatal crash that occurred near Psatha on Sunday (local time). The other chopper's surviving crew members were in the care of medical professionals, he said.