According to preliminary investigation findings released by NTSB investigators on Tuesday, four key bolts were "missing" when a door plug blew off an Alaska Airlines 737 Max 9 in midair last month.
As NPR's Southern Bureau chief, Russell Lewis covers issues and people of the Southeast for NPR — from Florida to Virginia to Texas, including West Virginia, Kentucky, and Oklahoma. His work brings context and dimension to issues ranging from immigration, transportation, and oil and gas drilling for NPR listeners across the nation and around the world.