Propeller Issue
After takeoff from Kuujjuarapik Airport, the aircraft's propeller oversped. The crew was unable to feather the propeller. This condition prompted the captain to decide to return to the airport for an emergency landing.
Descent and Gear Indication
During the descent for landing, an unsafe landing gear indication appeared. This forced the captain to delay the landing and execute an overshoot (go-around).
Stall and Crash
Due to insufficient speed during the go-around, the airplane stalled. It subsequently struck trees and crashed in a wooded area near Kuujjuarapik.
Evacuation and Damage
All 16 occupants on board were evacuated from the aircraft. The aircraft itself was destroyed.