On November 22, 1996, at 1425 central standard time, a Cessna 150, N704DR, operated by Midwest Air Service, Inc., was substantially damaged when it collided with power lines while maneuvering near Chesterfield, Missouri. The private pilot and one passenger reported no injuries. The local, personal, 14 CFR Part 91 flight originated at the Spirit of St. Louis Airport, Chesterfield, Missouri. Visual meteorological conditions prevailed and no flight plan was filed. In a written statement, the pilot reported that he was practicing a simulated emergency landing to "what appeared to be a landing strip." During the simulated final approach, "the wire strike occurred." He wrote that he "knew immediately what had happened." He recovered the airplane to the Spirit of St. Louis Airport, and landed, without further incident. The airplane was examined by a Federal Aviation Administration (FAA) Inspector. She reported that the lower cowl and propeller exhibited evidence of "arcing" and "metal flow." One aileron was substantially damaged. A 200 foot piece of copper wire was removed from the airplane.