Overview
The aircraft was destroyed when it impacted terrain 1.2 miles from the airport on a magnetic bearing of 003 degrees from the approach end of runway 18. The flight instructor (CFI) weighed approximately 149 pounds and the student pilot weighed approximately 310 pounds. No other information about the aircraft, such as type or registration, was provided in the source.
Witness Account
A witness reported seeing the airplane traveling toward him from west to east. The witness heard the airplane's engine initially and noted that the engine was at a low power setting. The airplane was low, approximately 500 feet, and its airspeed was slow. The airplane was in a steep angle of bank and in a turn to the right. The witness described the airplane as being "...a kind of a climb in a bank." After 270 degrees of turn, the airplane flipped over on its back and became inverted. The nose of the airplane then went down. The witness reported that the nose of the airplane started coming up and the airplane looked like it was going to recover when the witness lost sight of the airplane behind a tree line. The witness heard the airplane's engine revving to full power before hearing it impact the terrain.
Investigation
An examination of the airplane's systems revealed no anomalies. The source does not state a probable cause for the accident. No information was provided regarding injuries, fatalities, or weather conditions.