What happened
The flight departed from Garden City Regional Airport under conditions described as extremely poor weather. While en route to Dodge City, more than halfway through the journey, the pilot reported engine problems to air traffic control. Controllers provided vectors directing the aircraft toward Dodge City Airport, but the pilot did not maintain the assigned headings. Instead, the aircraft turned back toward Garden City in an attempt to execute an immediate approach.
Radar vectors were subsequently issued for a localizer approach at Garden City. However, radar data indicated that the aircraft failed to stabilize on the approach path. As the pilot attempted to establish the aircraft on the localizer, there was a significant loss of groundspeed. Radar contact was lost approximately two miles from the airport at a speed approaching the stall speed for this type of aircraft.
The aircraft crashed about two miles short of the runway and to the right of the extended centerline. Impact occurred in a vertical nose-down attitude on a heading that indicated a turn away from the airport. The left propeller was found in the feathered position upon recovery. No mechanical problems were discovered with the airframe or systems prior to the crash.
The investigation
Post-accident examination of the right engine revealed that it appeared to be producing full power at the time of impact. This finding suggests that the loss of thrust was likely isolated to the left engine or resulted from pilot input rather than a systemic mechanical failure of both engines.
Findings
The primary factors contributing to the accident were the pilot's failure to maintain an stabilized approach and the resulting loss of airspeed below stall speed. The decision to divert back to the departure airport in extremely poor weather, combined with the inability to maintain assigned headings and establish a stable localizer intercept, led directly to the controlled flight into terrain.
Safety message
Pilots operating in instrument meteorological conditions must prioritize maintaining stabilized approach criteria. Deviating from assigned vectors without clearance or failing to maintain proper airspeed during an approach can lead to catastrophic loss of control.