Background
According to the student pilot, the first leg of an instructional cross-country flight concluded with an uneventful full flap landing at the airstrip. The student later stated that he did not feel comfortable with the subsequent takeoff due to the airplane being heavy and the density altitude being high.
Sequence of Events
During the takeoff roll, the student followed along as the certified flight instructor (CFI) operated the controls up to the point of rotation. At rotation, the CFI had full control of the airplane. During the climb, the student noticed the airspeed decreasing below 70 knots and called out when it reached 55 knots. At about that time, the student lightly pushed forward on the control yoke, but the CFI continued to pull back. The airplane entered a stall, and the nose and right wing dropped. Subsequently, the airplane collided with hilly terrain approximately half a mile north of the airstrip.
Post-Accident Examination
Weight and balance calculations revealed that the airplane was about 100 pounds over the maximum certificated gross weight. The density altitude was calculated at 5,252 feet. During an examination, the flaps were found fully extended and the elevator trim was in a nearly full nose-up position. An engine examination found no evidence of a mechanical failure or malfunction.