Over the years, there have been multiple crashes, including a collision between a plane and a tourist helicopter over the Hudson River in 2009 that killed nine people and the 2018 crash of a charter helicopter offering "open door" flights that went down into the East River, killing five people.

The rotor of the helicopter from last week's deadly crash has been retrieved from the Hudson River, four days after the devastating accident that killed all six people on board, according to a statement from the National Transportation Safety Board.