The student pilot had completed one previous solo circuit to a full stop. He then backtracked and was taking off for another circuit. He reported that the engine appeared to lose power soon after the aircraft became airborne. He then elected to land the aircraft on the remaining runway. The pilot forgot to lower the flaps, but the aircraft was turned into wind, touching down off the side of the runway. The aircraft was unable to be stopped within the distance remaining and ran through the boundary fence.
The pilot was able to exit the aircraft safely.
The aircraft sustained substantial damage to the nose landing gear, right wing and the tail plane.
Later examination and ground run of the engine was unable to duplicate the power loss described by the pilot.