A small airplane crashed yesterday in southeast Alaska, killing five and injuring four. Alaska State Troopers spokeswoman Megan Peters said that among the survivors is a two-year-old girl. Ketchikan Public Safety Director Rich Leipfert told the Ketchikan Daily News that three of the injured were transported to hospitals. Leipfert also said that the plane, belonging to SeaWind Aviation, crashed into a tree at Traitors Cove, an area about 25 miles north of Ketchikan.