Search teams have recovered the cockpit voice recorder and the flight data recorder of the Agni Air Dornier 228-200 turboprop that crashed in northwest Nepal on 14 May.
They will be passed to the Civil Aviation Authority of Nepal, which is setting up a committee to lead the investigation on the crash, says a police spokesman from Nepal.
It is not clear whether the recorders will be sent overseas for analysis.
The aircraft, registration number 9N-AIG, was operating on the Pokhara-Jomson route when the incident happened.
The spokesman says that the pilot had told air traffic control about a minute before the crash that there was "something wrong with the aircraft indicators" on approach to Jomson, and that he was going to do a go-around and return to Pokhara Airport.
However, one of the aircraft's wings slammed into a mountain while on the go-around. Jomson airport, which is located in a mountainous area, is a key trekking hub in Nepal.
Fifteen people, including the pilot and the co-pilot, were killed in the crash. Six others survived.
Agni Air, originally set up as an air taxi company in 2005, started regular services in 2008, linking the Nepalese cities of Kathmandu and Pokhara with other towns and cities in the country.
This is the second crash involving a Dornier 228 operated by Agni Air.