What happened
While performing a landing approach, the pilot observed that the right engine failed to respond to power lever reductions, remaining stuck at a high power setting. In response to this malfunction, the pilot initiated a missed approach. During this phase, the crew encountered difficulties maintaining straight and level flight.
Following a second attempt to land, the aircraft touched down, but the pilot was unable to maintain directional control. An attempt to execute a go-around was unsuccessful, and the aircraft exited the runway at the end of the strip, eventually striking a localizer antenna. No emergency was declared, and air traffic control was not notified of the mechanical issues during the sequence of events. There were 0 fatalities and 0 injuries reported.
Findings
Investigation into the mechanical failure revealed that the power control cable had become detached from its anchoring point. A broken safety tab on the housing had allowed the component to unscrew, leading to the disconnection. Records indicate that approximately one month prior to the incident, maintenance had been conducted on the right engine to address a stiff power lever, during which time a mechanic had re-rigged the power cable.