On August 18, 2004, approximately 1700 central daylight time, a Mooney M20E single-engine airplane, N3379X, was substantially damaged upon collision with street signs when the airplane overran the departure end of Runway 30 at the Kestrel Airport (1T7), near San Antonio, Texas. The airplane was registered to Rohuff Corporation, of Bulverde, Texas, and was being operated by the pilot. The private pilot, sole occupant of the airplane, was not injured. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The cross-country flight originated from Bulverde, Texas, at an unknown time, and was destined for 1T7. According to the Federal Aviation Administration (FAA) inspector, who responded to the site of the accident, the airplane landed on runway 30 (a 3,000-foot long, by 40-foot wide asphalt runway), and overran the departure end of the runway. Upon exiting the airport property, the airplane struck a "no parking" sign and entered a residential street where it collided with 3 sets of reflectors. The pilot continued taxiing up hill where the pilot made a left turn as the left wing struck a stop sign. The pilot continued taxiing down a residential street through a 3-way intersection before an "individual forced the pilot to stop the airplane and have it towed back to the airport." Examination of the airplane by the FAA inspector revealed the left and right wing spars were bent. The left horizontal stabilizer also sustained structural damage. The winds at the time of the occurence were reported from 130 degrees at 7 knots. A completed Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) was not received from the pilot.