On November 20, 2001, about 1725 eastern standard time, a Cessna 150M, N590AM, registered to Ameens Leasing Corporation, collided with trees while making a forced landing following loss of engine power near Stuart, Florida, while on a 14 CFR Part 91 instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The airplane received substantial damage and the student pilot was not injured. The flight originated from Stuart, the same day, about 1420. The student pilot stated that prior to departure she fueled the airplane herself. She then departed Stuart and flew to Melbourne, Florida, and then returned to Stuart. The traffic pattern at Stuart was very busy, so she went to the practice area. She then made contact with the Stuart Control Tower and was cleared to enter right base for runway 7. She was about 8 miles from the airport, at 2,500 feet, and the engine was operating at 2,300 rpm. The engine then quit and she made a forced landing in a orange grove. Postcrash examination of the airplane by FAA inspectors showed the fuel selector was on, the right fuel tank was empty, and the left fuel tank contained 1.5 to 2 gallons of fuel. There was no evidence of fuel leakage from the airplane after the accident or in-flight prior to the accident. The engine tachometer showed the airplane had operated 3.1 flight hours since the pilot took the airplane. After the airplane was recovered, FAA inspectors observed company maintenance personnel attach a fuel supply to the engine and then start and operate the engine with no evidence of mechanical failure or malfunction. The Pilot Operating Handbook for the Cessna 150 shows the airplane has 3.5 gallons of unusable fuel.