Accident Details
While cruising in instrument meteorological conditions at an altitude of 10,000 feet on an IFR flight plan, the pilot advised Atlanta Center of an engine problem and declared an emergency. Controllers provided a heading to Bluefield Airport, which was nearby. When queried, the pilot reported that the left engine was producing only partial power. Shortly thereafter, the passenger, who was the pilot's wife, observed a break in the cloud cover, and the pilot stated he would circle and attempt to land. The pilot was advised that the highest obstacle in the area was 3,800 feet. Although the pilot reported good ground contact, he indicated he still could not see the airport. Radar contact with the aircraft was lost at low altitude, but the pilot successfully navigated to the Bluefield VOR, which was located approximately half a mile from the airport. Subsequently, the pilot entered a turn away from the airport, and shortly after that maneuver, the aircraft struck trees on hilly terrain.
Environmental and Mechanical Findings
The surface temperature at the time of the accident was 30 degrees Fahrenheit. Inspection of the aircraft after the accident revealed icy slush in the left gascolator, a component that filters fuel. Both fuel selectors were found positioned to the auxiliary fuel tank positions. No evidence of any pre-impact mechanical malfunction or failure was discovered. The left propeller blades were found in a flat pitch angle (not feathered) and exhibited aft bending with minimal rotational damage, suggesting that the engine was not producing significant power at impact.