Helicopter Bell 206A Serial 46 Register N7846S used by Bell Helicopter. Built 1967. Aircraft history and location Aircraft History N7846S Bell Helicopter Bell 206A cn46, ff:? reg Bell Helicopters as N7846S, 1967 - 1967-08-15reg Mobil Oil as N7846S, 1967 Lost control over Gulf of Mexico, helo sank, not recovered, 4 fatalities, 15Aug67. Send Updates Use APP to upload photo @ (optional) When Now? / / Send