Pilot error caused U.N. air crash killing 10 Americans , Russian finds . Crew did not consult weather forecast nor set a route before taking off . The U.N. mission said three victims were Nepalese citizens . Air crew consisted of two Russians and one Belarussian .
Pilot error caused U.N. air crash killing 10 Americans , Russian finds . Crew did not consult weather forecast nor set a route before taking off . Air crew consisted of two Russians and one Belarussian .