On March 1, 2003, about 1100 mountain standard time, a Piper PA-18-150, N62712, collided with obstacles during an aborted takeoff from a private dirt strip near Chandler, Arizona. Chandler Air Service operated the airplane under the provisions of 14 CFR Part 91. The certified flight instructor (CFI) and student pilot were not injured. The airplane was substantially damaged. Visual meteorological conditions prevailed, and no flight plan had been filed. The instructional flight departed Chandler about 1030. In a written statement, the CFI stated that while executing a touch-and-go, the airplane didn't feel like it was getting full power, and he elected to abort the takeoff. The airplane overran the runway that was 2,500 feet long, and went into desert terrain, colliding with bushes and small trees. Examination of the airplane by Federal Aviation Administration inspectors revealed no discrepancies with the airframe or the engine.