Garuda Indonesia, which posted a large increase in revenue last year, is planning to announce an order for regional jets at the Singapore Airshow in February.

A Garuda spokesman says the airline’s president director, Emirsyah Satar, plans to attend the Airshow and is likely to use the occasion to announce the airline’s order for 18 regional jet aircraft. The spokesman declines to say which type Garuda has chosen, but industry executives tell Aviation Week that it is Bombardier CRJ aircraft rather than Embraer 190s.

Satar told the Jakarta Post in mid-December that five of the 18 aircraft will be delivered in 2012. Garuda VP-network planning, Tenten Wardhaya, meanwhile, told Aviation Week in late November that only five or six of the 18 would be purchased, and that the rest would be leased.

Garuda operates Boeing 737-800s for domestic and short-haul international and Airbus A330s for international, but it wants regional jets to develop new domestic routes in Indonesia.

The publicly traded airline has experienced a surge in revenue thanks to Indonesia’s double-digit growth in passenger traffic. Garuda’s finance director, Elisa Lumbantoruan, says the carrier’s financial situation improved in 2011. He says revenue rose 39% to 27.1 trillion rupiah ($3 billion) from 19.5 trillion rupiah and that the airline had an operating profit of 900 billion rupiah compared to 2010’s loss of 70 billion rupiah.