Helicopter Sikorsky S-55 H-19 Serial Register 0639 used by Comando de Aviacion Naval Argentina COAN (Argentine Navy). Aircraft history and location Aircraft History For 0639 see also 1953 h-19b 55-386 0639 Comando de Aviacion Naval Argentina ARA d/d 1968 as 4-H-20 wfu 1973 Send Updates Use APP to upload photo @ (optional) When Now? / / Send