Garuda Indonesia caused by the lack of airport infrastructure in smaller cities and remote areas, such as insufficient runway length that mostly less than 1,600 meters. In line with its "Quantum Leap" plan, Garuda Indonesia ordered brand-new Bombardier CRJ1000 and ATR 72 to reach smaller airports from Garuda's hubs like Ngurah Rai International Airport, Sultan Hasanuddin International Airport, and Kualanamu International Airport. On 25 November 2013, Garuda Indonesia has launched its new sub-brands "Explore" and "Explore-jet", for servicing "perintis" ("pioneer") lines traditionally served by other airlines — (dormant) Merpati Nusantara Airlines and also its competitor Wings Air. On 5 March 2014, Garuda
Garuda Indonesia is used on most domestic and regional routes. Meanwhile, the Bombardier CRJ1000 is used to fly to airports incapable of handling the newer 737-800, replacing the Boeing 737 Classic. The ATR 72-600 turboprop entered service at the end of 2013, serving new inter-island routes to airports in the eastern part of Indonesia that cannot handle jet aircraft. Of the 73 aircraft in the 737NG fleet, Garuda plans to retire the oldest three, which exceed 16 years in age (the rest of the fleet is eight years or younger, as of May 2018). At the Paris Air Show in 2015, Garuda