The National Transportation Safety Board is investigating what caused the helicopter crash in Logan County, West Virginia Wednesday evening. What remains of the helicopter will be removed from the crash site. The Bell UH-1B chopper went down about four miles away from the Logan County Airport, crashing onto state route 17. The NTSB should have a preliminary report completed within the next two weeks, but the full investigation could take a couple of years. The helicopter was making its final scheduled flight of the day as part of the Huey Reunion. All six on board died.