19980425007699A

Stalled after liftoff. Nosed down. Sheared nose gear. Slid off end runway down wooded slope. 150 not airworthy. (.4)according to the pilot, he was demonstrating high speed taxi runs to a prospective buyer. On the last taxi run, the airplane veered off the runway into high grass, traveled down an embankment and came to rest in some trees. The pilot reported that the airplane did not become airborne, and that the accident could have been prevented if he had taxied slower. A witness reported that the airplane did become airborne and was about 30 feet above the ground, at a high angle of attack, when the wings rocked back and forth. The airplane touched down hard and then veered off the runway. According to a federal aviation administration inspector, the pilot did not have a current medical certificate nor did he have a current biennial flight review. According to the airplane's maintenance records, the last annual inspection was completed 4 years prior to the accident. (-23) the aircraft departed runway 06 with a tailwind. After takeoff, the aircraft was unable to gain sufficient altitude, and was only able to climb approximately thirty feet. The aircraft stalled in a wings level attitude and touched back down on it's main gear approximately ten feet from the right side of the mowed runway. The pilot pushed the control yoke forward ot get the nose down, but pushed too hard causing the nose gear to strike the ground and to shear off from the airplane. The propeller struck the ground several times as the aircraft continued to parallel the runway. The pilot was able to steer the aircraft back to the runway, but it overran the end of the runway crossing an access road and coming to rest down a heavily wooded slope. The aircraft sustained substantial damage to the propeller, engine mounts, and the left wing.