Helicopter Mil Mi-171 Serial 59489611073 Register SMH-4301 CH-595 used by Sri Lanka Air Force. Built 1994. Aircraft history and location Aircraft History CH-595 Sri Lanka Air Force c/n 59 489 61 1073 / 59489611073 SLAF re-registered to SMH-4301 SMH-4301 Sri Lanka Air Force SLAF ex CH-595 Send Updates Use APP to upload photo @ (optional) When Now? / / Send