On May 4, 2004, at 1200 eastern daylight time a Cessna 172N, N737HW, registered to Jensen Aviation, and flown by a private pilot collided with the ground during a full-stop landing on runway 08 at the Tampa Executive Airport, in Odessa, Florida. The personal flight was operated under the provisions of Title 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The private pilot and is two passengers were not injured. The airplane sustained substantial damage. The flight departed Tampa Executive Airport in Odessa, Florida, at 1100 on May, 4, 2004. According to the pilot, he and his passengers departed Executive Airport and stayed within the local flying area. After about one hour of flying, they returned to Executive Airport, The pilot report as he enter the traffic pattern for runway 08, he radioed his position. The pilot recalled that he lowered the wing flaps to the full down position on final approach. The pilot stated that the landing was a "hard one". The pilot taxied the airplane to the refueling pump and was told to leave the airplane at the pump. The pilot reported that he saw no damage to the airplane after deplaning. According to the pilot several days latter, he was informed of the firewall damaged to the airplane.