What happened
While attempting to land on a gravel airstrip situated within mountainous terrain, the pilot experienced an increase in ground speed due to a tailwind just before touchdown. In response to these conditions, the pilot initiated a go-around procedure.
During the subsequent climb out, the aircraft encountered down drafts. The aircraft was unable to gain enough altitude to clear the surrounding terrain. Consequently, the pilot maneuvered the unspecified aircraft to perform a forced landing into a river.
Prior to the final approach, the pilot had been notified by another pilot on the ground regarding the presence of turbulent conditions. The pilot reported that there were no mechanical failures or malfunctions present in the aircraft at the time of the accident.