What happened
After completing cargo offloading at a remote location, an air cargo flight departed the site. Shortly after takeoff, the crew observed the number two engine beginning to run rough. In response, the crew shut down the engine and feathered the propeller.
During the shutdown procedure, a fire warning light illuminated, and flames became visible near the number two engine. The crew attempted to suppress the flames by activating both banks of the engine fire extinguishers; however, these efforts were unsuccessful in extinguishing the fire.
While the crew was on approach to an off-airport emergency landing site, the number two engine detached from the aircraft and fell, igniting a brush fire upon impact. The crew performed a successful landing and evacuated the aircraft. Following the landing, the airplane continued to burn and was destroyed by fire. The number two engine was not located or recovered following the accident.