What happened
The incident occurred while the crew was conducting a demonstration flight for prospective clients. Upon arrival at Wau Airport, the aircraft touched down on a runway characterized by a relatively steep gradient. Following the landing, the plane failed to decelerate as expected and could not be brought to a halt within the available runway distance. The aircraft subsequently overran the end of the strip and came to rest in a ditch adjacent to the airfield.
All five members of the crew sustained minor injuries during the event. The structural damage sustained by the aircraft was extensive, leading to its classification as beyond repair.
Findings
Investigations into the accident identified a specific mechanical failure as the primary factor in the loss of control. A brake cable failed immediately after touchdown. This malfunction prevented the braking system from functioning correctly, which stopped the aircraft from slowing down sufficiently to remain on the runway surface.