Helicopter Bell 206A Serial 307 Register CH-550 used by Sri Lanka Air Force. Built 1968. Aircraft history and location Aircraft History CH-550 Sri Lanka Air Force Bell 206A cn307 ff:? del Sri Lankan Air Force as CH-550, 1968 suffered hard landing, unk wfu & pres Colombo-Ratmalana Airport, unk Send Updates Use APP to upload photo @ (optional) When Now? / / Send