KOREA Aerospace Industries (KAI) has emerged as the front runner to secure a RM4 billion contract to supply the Royal Malaysian Air Force (RMAF) with 18 light combat aircraft (LCA), according to sources familiar with the outcome. However, the award is said to have triggered an investigation by the Malaysian Anti-Corruption Commission (MACC), following a complaint by one of the unsuccessful bidders. The anti-graft body is understood to have opened a case file on the matter based on documents and text messages sighted by The Edge.