A small plane spiralled out of control and crashed on Tuesday morning on a major New York-area highway, hitting a wooded median and scattering wreckage across the road. All five people aboard, including two investment bankers, were killed, but no one on the ground was injured. The pilot had discussed icy conditions with controllers just before the plane went down, but investigators were unsure whether icing played a role in the crash. The New York investment banking firm Greenhill & Co said two of its managing directors, Jeffrey Buckalew, 45, and Rakesh Chawla, 36, as well as Buckalew\'s wife and two children, were on the plane, which crashed on Interstate 287. Buckalew was the registered owner of the single-engine plane and had a pilot\'s licence. Wreckage was scattered over at least a half-mile, with a section found lodged in a tree of a home about a quarter-mile away, near a highway entrance ramp. The crash closed both sides of the busy highway for hours, though several lanes were open again in time for the evening rush hour.