The pilot departed the airport for a local flight. During the flight he observed family and friends on the ground and he maneuvered the airplane to overfly them at low altitude. The airplane struck power lines as the pilot set up for the flyover, and both ailerons and outboard portions of each wing separated. The pilot maintained control of the airplane until approaching the airport for landing. When the pilot reduced power to land, the airplane rolled to one side and impacted the ground near the runway. The pilot stated he did not see the wires due to the location of the sun.