Incident
On May 2, 2015, a Bell Helicopters 407, powered by a Rolls-Royce M250-C47B turboshaft engine, was conducting an approach to a helipad while carrying an external load consisting of two diesel fuel drums. During the approach, the helicopter experienced an unexpected and uncommanded high rate of descent. The pilot responded by jettisoning the external load. After releasing the drums, the pilot was able to regain control and subsequently performed a safe landing.
Investigation
The accident investigation is being conducted by the Accident Investigation Commission (AIC) of Papua New Guinea. Further details regarding the cause of the uncommanded descent have not been released by the investigating body at this time.