En­gi­neers de­ter­mined the prob­lem start­ed as a short cir­cuit or an elec­tri­cal arc in a pow­er dis­tri­b­u­tion pan­el, most like­ly caused by for­eign de­bris, Boe­ing said last month. The Dream­lin­er is Boe­ing's next-gen­er­a­tion pas­sen­ger jet. It is tout­ed as a high­ly fu­el-ef­fi­cient air­craft made large­ly with com­pos­ite ma­te­ri­als. The com­pa­ny has near­ly 900 or­ders for the jet from around the world. (CNN)