Incident Overview
A rental airplane sustained damage when it struck the runway during the takeoff sequence. The pilot reported that he had completed a preflight inspection of the aircraft and received a takeoff clearance.
Takeoff Sequence
According to the pilot, the airplane became airborne briefly, then struck the ground. It became airborne a second time and again struck the ground. At that point, the pilot reduced engine power and applied the brakes. The airplane contacted the ground once more before coming to a stop.
Post-Accident Examination
Following the accident, an examination of the airplane revealed that the control gust lock was still installed. The warning flag associated with the gust lock was found broken off. The gust lock prevents control surface movement when engaged, and its presence during flight can impede normal aircraft control.