The army said that five civillians, who had gone missing from Singati of the quake-battered Dolakha district, were on board the UH-1Y Huey that crashed on May 12.
The helicopter had crashed in Ghorthali village of Sindhupalchok district while delivering aid to people hit by two major earthquakes in Nepal.
There were 13 people, including six US Marines and two soldiers from the Nepalese army, on board the chopper, said a statement by the Army Headquarters.
Relatives had been enquiring about the whereabouts of the civillians after they could not locate them even two weeks after they were rescued, leading to suspicions that they could be on board the flight.
Earlier this week, a team reached district headquarters Charikot to collect DNA samples of the missing persons' relatives.
The statement said DNA tests and investigations found that local villagers were also on the chopper.