Background
Investigation revealed that the pilot was not current in instrument meteorological conditions (IMC) operations. Additionally, the aircraft was not certified for instrument flight. Prior to departure, the pilot obtained a weather briefing that forecast a chance of thunderstorms along the intended route.
Flight
The pilot departed on a cross-country flight. While en route, he contacted Oklahoma City En Route Flight Advisory Service (EFAS). The briefer advised him of a thunderstorm near Oklahoma City. The pilot stated that he would return to Ardmore.
Witnesses and Wreckage
Witnesses on the ground observed the aircraft descending in a dive out of the low cloud base. Examination of the wreckage indicated that the aircraft separated in flight at a low altitude before impacting the ground.
Probable Cause
No probable cause was determined by the source material.