During the approach to runway 27, the pilot maintained the airspeed between 100 and 110 knots to compensate for gusty wind conditions. The pilot reported the wind at the time of the accident was from 190 degrees at 10 knots and gusting to 18 knots. Upon touchdown, the airplane began to porpoise and the pilot aborted the landing. During the aborted landing, the airplane encountered a wind gust and settled back onto the terrain adjacent to the runway. The pilot reduced the engine power and attempted to stop the airplane. Subsequently, the airplane impacted an airport perimeter fence and came to rest upright. Postaccident examination of the airplane revealed the nose wheel landing gear separated, and the gearbox bulkhead was bent and deformed. The pilot reported no preimpact mechanical anomalies or failures with the airplane that would have precluded normal operation.