The mechanism that controls the vertical angle of the plane was found in three pieces, including one nearly four miles away. All nine people aboard were killed.
The crash, in a popular tourist area during the autumn climbing season, highlighted the safety challenges posed by growing numbers of aircraft in the Himalayas.
Nine people died, including two young children and a 20-year-old co-pilot, Nathalia Filgueiras, who received her pilot’s license three years ago, when she was still a teenager.
A small jet plummeted to the ground on Sunday, exploding into a fireball and killing everyone on board. The authorities did not immediately release information about the victims.
Photos and video posted online showed the business jet diving nose first to the ground and exploding. In a radio call, a pilot said the plane was descending at 20,000 feet per minute.