Seven people including NASCAR champion Greg Biffle and Dennis Dutton were killed when their plane crashed during landing at North Carolina's Statesville airport.

The crash at Statesville Regional Airport killed popular NASCAR driver Greg Biffle, his wife and two kids, and three other people.

The National Transportation Safety Board has examined whether those lights could have made it more difficult for the helicopter crew to keep tabs on the plane and whether night vision goggles it believes the crew was using could have made their difficult task even more challenging.

Officials provide an update on the Cessna Citation crash in Statesville, N.C. that left NASCAR legend Greg Biffle and family dead.