Flight 63 originated at Cleveland at 17:56, 17 minutes later than the scheduled departure. Intermediate stops were made at Columbus, Dayton, Cincinnati, and at Louisville. Accumulated delay at the time of departure from Nashville amounted to one hour and 38 minutes. The DC-3, named "Flagship Missouri", climbed to 6000 feet and the pilot reported cruising at this level at 22:59. At 23:06 the flight called Nashville and requested permission to climb to 8000 feet, which was approved. However altitude was lost until the DC-3 descended into the thickly wooded southern slope of a hill which rose to a height of about 75 feet.
PROBABLE CAUSE: "Inability of the aircraft to gain or maintain altitude due to carburetor ice or propeller ice or wing ice of some combination of these icing conditions while over terrain and in weather unsuitable for an emergency landing. CONTRIBUTING FACTOR: Weather conditions which, had their nature been anticipated, should have precluded the dispatch of the flight in an aircraft no equipped with wind or propeller deicing equipment."