New details emerge on snowstorm plane crash that left 9 dead

An NTSB investigator examines the wreckage of a Pilatus PC-12 airplane at Chamberlain Municipal Airport in South Dakota. The aircraft crashed on Saturday, November 30, 2019, moments after taking off. The crash killed nine of the 12 people on board. (NTSB)The pilot and a passenger worked for three hours "to remove snow and ice from the airplane," according to a National Transportation Safety Board (NTSB) preliminary report, prior to a deadly plane crash late last month in South Dakota that&n