"Neighbors said that the area was draped in fog at the time of the crash. Gregor said it would have been up to the pilot to decide how safe it would have been to take off. "That decision would have been up to the pilot," the FAA spokesman said. Patricia Armistead, who lived in the neighborhood, heard the explosion and raced outside. "You couldn't really see anything because the fog was so thick," she said, although she did see a few flames." - David Vasileff