Houston (Texas), Digital report : Ten people were killed when a small airplane crashed into a hangar in Northern Texas on Sunday morning . The incident took place at an airport in Addison , Texas, which is about 15 miles North Dallas , shortly after 9 A.M (local time) . Every persons on board the Beechcraft BE-350 King air Plane , which was scheduled to fly to Florida, died. An investigation into the matter has been initiated. It’s still unclear what caused the crash .