The pilot would not provide a statement; however, the pilot's wife who was on the ground and witnessed the accident reported that she watched as the airplane took off from an open field. During the initial climb, the airplane struck power lines. She further reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. Responding law enforcement personnel reported that after the collision, the airplane collided with the ground in a nose low attitude substantially damaging the fuselage.