Mac air is the name of the merger between jet Craft (although technically it's called Transjet) and Mac air. (jet Craft also owned Tran.state that was based in Cairns).
jet Craft's specialties are FIFO mine work as well as freight. They used Dash 7's and Metro's. Mac air used to run Saab 340's doing similar FIFO work. Tran.state used Bandits and Twotters. They don't need FA's.
Fleet consists of Saab 340's, Metro's and Twin Otters. They operate out of Cairns, Townsville and Brisbane.
For more info do a search eg google on "Mac air" (but with no space)