What happened
During the final phase of a business flight, the pilot extended the landing gear as part of the standard approach procedure. Upon inspection of the cockpit indicators, the pilot observed that the left main landing gear had not fully deployed and was not locked in the down position. In response to this anomaly, the pilot activated the emergency landing gear extension system. However, the indicator lights continued to show that the gear remained undeployed.
While maintaining a course on final approach to the airport, the pilot made the decision to shut down the engine. This action was taken with the specific intention of preventing potential damage to the powerplant in the event that the landing gear collapsed upon impact. Unfortunately, shutting off the engine caused the aircraft's sink rate to increase significantly. The pilot attempted an in-flight restart of the engine, but this effort was unsuccessful.
With no further options available to arrest the descent or restore propulsion, the aircraft collided with the terrain approximately half a mile from the airport boundary. Post-accident examination could not definitively determine whether the left main landing gear had actually been down and locked at the time of impact.