Pennsylvania Central Airlines Trip 19 crashes near Lovettsville, Virginia. The CAB investigation of the accident is the first investigation to be conducted under the Bureau of Air Commerce act of 1938.

On August 31, 1940, Pennsylvania Central Airlines Flight 19, a new Douglas DC-3, was flying from Washington, D.C. to Detroit with a stopover in Pittsburgh. While the aircraft was flying near Lovettsville, Virginia at 6,000 feet (1,800 m) and approaching the West Virginia border, Flight 19…