What happened
During the final stages of an approach to Nakhon Phanom Airport, a military transport airplane departed controlled flight. The aircraft descended into a wooded area situated in close proximity to the airfield infrastructure. Upon impact, the wreckage resulted in immediate fatalities for two individuals aboard, specifically Captain Robert Alan Kohn and Master Sergeant John W. Ryon. Emergency responders were able to reach the site and successfully extracted eight additional occupants from the debris field.
Findings
Investigations into the incident identified a critical mechanical failure as the primary driver of the disaster. The official conclusion attributes the loss of control directly to a malfunction within the rudder control system. This specific failure prevented the crew from maintaining directional stability during the critical approach phase, leading inevitably to the crash in the nearby forest.
The accident highlights the severe risks associated with hydraulic or mechanical failures in flight control surfaces during low-altitude operations. The survival of eight passengers underscores the resilience of the airframe despite the catastrophic loss of control authority.