The preliminary National Transportation Safety Board report released late Monday draws no conclusions on what caused the Dec. 20 crash. A final report could take a year or more to complete.
The single-engine turboprop crashed about 15 minutes after takeoff from Teterboro Airport and was headed to Georgia.
The report describes how pilot Jeffrey Buckalew radioed to air traffic controllers that he was experiencing icing and requested to climb to a higher altitude. The plane peaked at 17,900 feet before descending.
The plane crashed in a wooded median on Interstate 287 in Morris County.
Buckalew's wife and two children and a business colleague also perished.
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