NTSB investigates New York helicopter crash that kills five passengers by drowning
NEW YORK. National Transportation Safety Board (NTSB) officials in Washington are investigating the fatal crash of a helicopter operated by Liberty Helicopters for sightseeing tours that crashed in the East River in New York City on 11 March 2018. The pilot escaped but all five paying passengers perished; officials reports indicate the helicopter was upside-down in the water and the cause of all three deaths is drowning.