What happened
While operating under instrument flight rules at a cruising altitude of 10,000 feet, the pilot contacted Atlanta Center to report an engine problem and declared an emergency. Air traffic control provided a heading toward Bluefield Airport, which was in close proximity. When questioned regarding the nature of the issue, the pilot stated that the left engine was delivering only partial power.
Shortly thereafter, a passenger, identified as the pilot's wife, observed a break in the cloud cover. The pilot indicated an intention to circle and attempt a descent. Controllers informed him that the highest obstacle in the vicinity was at 3,800 feet. The pilot reported maintaining good ground contact but stated he could not visually locate the airport. Radar contact was lost at low altitude, though the pilot continued flying toward the Bluefield VOR, located approximately one-half mile from the airport.
The aircraft then entered a turn away from the airport. Shortly after this maneuver, the airplane collided with trees on hilly terrain. The surface temperature at the time was 30 degrees Fahrenheit.
The investigation
Examination of the wreckage revealed icy slush inside the left gascolator. Both fuel selectors were found in the 'AUX' positions. There was no evidence of pre-impact mechanical malfunction or failure. The blades of the left propeller were found in a flat angle, not feathered, and were bent aft with little rotational damage.
Findings
The pilot's decision to continue flight into deteriorating weather conditions, combined with the loss of visual reference and subsequent disorientation, contributed to the accident. The presence of ice in the fuel system suggests potential fuel flow restriction or engine performance issues that may have prompted the initial emergency declaration.