The National Transportation Safety Board has sent investigators to Guatemala to help determine why a plane crashed that killed two Wisconsinites and eight others.
Roger Jensen, 48, and his son Zachary, 16, of Amery died in Sunday's mishap.
The survivors included Jensen's wife, April, 41, who had burns and cuts, and their daughter Sarah, 19, who had minor cuts and bruises.
They were on way to El Estor to build a school for the Utah group CHOICE Humanitarian.
Group spokesman Lew Swain said it was Roger and Zachary's second Guatemalan trip, and both did the right thing by helping the world community.
The pilot of the Cessna turbo-prop reported engine trouble about 45 minutes after it took off. It tried to make an emergency landing about 60 miles east of Guatemala City.
Roger Jensen was the maintenance manager at the Smyth Companies in St. Paul, Minn. He sold copper pipe from a facility the company was closing in order to pay for the trip.
The firm and Jensen's neighbors in Amery called him and his family loving, giving and always upbeat.
Sarah Jensen had graduated from Amery High School, and Zach would have been a senior there in the fall.