On August 10, 2003, at 1800 central daylight time, a Cessna 140 single-engine airplane, N72971, registered to and operated by a private-rated pilot, was substantially damaged during a forced landing at Morrilton Municipal Airport (BDQ), Morrilton, Arkansas. The airplane experienced a complete loss of engine power during initial climb from runway 09. Visual meteorological conditions prevailed at the time of the accident. The Title 14 Code of Federal Regulations Part 91 personal flight was not operating on a flight plan. The pilot reported minor injuries. The flight originated from BDQ at 1712. The pilot reported that he performed a pre-flight of the airplane prior to departing to the north of BDQ to practice maneuvers. He then returned to BDQ where he performed a touch and go on runway 09 (4,000 feet by 50 feet, asphalt). He then remained in the traffic pattern to perform another takeoff and landing after which the engine experienced a total loss of engine power during initial climb. He reported that after the power loss, he leveled off approximately 50 feet above ground level and switched fuel tanks. The engine restarted, but lost power for a second time. He landed straight ahead, hitting a mound and then a tree. The airplane came to rest about 200 -300 yards west of the departure end of runway 09 on a field described by the pilot as "bad." The pilot then exited the airplane, got in his automobile, and left the accident site. Inspection of the airplane by a Federal Aviation Administration inspector revealed black particles consistent with the airplane's rubber fuel hose material within the fuel system. The airplane was last fueled approximately a month prior to the accident.