Incident Overview
An airplane collided with two motor vehicles near the threshold of Runway 28L during its approach. The pilot had canceled the IFR flight plan five miles from the airport. According to the pilot, the airport was lost from view on the downwind leg. He then turned base, describing the turn as being made at a point which was calculated to be somewhat premature in order to regain sight of the airport.
Approach and Collision
After turning base, the pilot regained sight of the airport but noted that the altitude was perceived to be slightly low for the position of the aircraft relative to the airport. He added power, and the sink rate subsided. On short final, as the airplane flew over a north-south oriented road at the approach end of the runway, the right wing tip tank struck the windshield of a dump truck in the southbound lane, and the left wing struck the roof of a van in the northbound lane.
Landing and Aftermath
The airplane landed on a grass runway. Upon landing, the landing gear collapsed, and the airplane skidded on the ground before coming to rest on the side of the runway. The extent of damage to the vehicles and the aircraft is not specified in the source.