Narrative
A flight instructor was conducting an instructional flight in an airplane owned by the student pilot. According to the instructor, he did not notice that the student pilot had not set the flaps to the appropriate position for takeoff, as required by the before-takeoff checklist. After rotation during the initial climb, the student pilot experienced difficulty maintaining directional control. The instructor took control of the airplane at an altitude of about 10 feet above the runway. At that point, the stall warning annunciator was audible, and the airplane began to sink. The instructor pushed the nose over but was unable to recover before the airplane landed hard and subsequently departed the right side of the runway.
Aircraft Damage
Upon leaving the runway, the landing gear dug into mud, causing the airplane to spin around. The nose gear and left main landing gear collapsed, resulting in substantial damage to the elevator and vertical stabilizer.
Instructor Report
The flight instructor reported that there were no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation.