Helicopter Bell 206A Serial 704 Register CH-559 CH-553 N7992J used by Sri Lanka Air Force ,Bell Helicopter. Built 1969. Aircraft history and location Aircraft History N7992J Bell Helicopter Bell 206A cn704, ff:? reg Bell Helicopters as N7992J, unk CH-553 Sri Lanka Air Force xfer Sri Lanka Air Force as CH-553, 1969 conv Bell 206B-2, unk CH-559 Sri Lanka Air Force reserialled Sri Lanka Air Force as CH-559, unk w/o unk Send Updates Use APP to upload photo @ (optional) When Now? / / Send