The engineering arms of Indonesia’s two largest airlines, Garuda Indonesia and Lion Air, have agreed to explore setting up joint ventures to maintain aircraft, engines, components and tire retread, showed a document seen by Reuters. The agreement between Garuda’s GMF AeroAsia and Lion’s Batam Aero Technic, due to be formally signed on Thursday, brings together the two rivals in an effort to jointly develop the aircraft maintenance, repair and overhaul (MRO) industry in the region, the document showed. GMF AeroAsia and Batam Aero Technic service their respective airlines but also look to compete for business from third parties against regional rivals like Singapore Technologies Engineering and SIA Engineering Company.<br/>