Truck rolled down a hill and crashed into a parked auto at the bottom of the hill.
Ajax Construction Company was awarded a contract to build a condominium on a hill overlooking the city. Prior to initiation of the project, a comprehensive safety program was developed covering all aspects of the project. Construction activities began on Monday, October 4, 1978, and proceeded without incident through Friday, October 8, 1978, at which time the project was shut down for the weekend. At that time, several company vehicles, including a 2 1/2 ton dump truck, were parked at the construction site. On Saturday, October 9, 1978, a nine-year-old boy, who lives four blocks from the construction site, climbed the hill and began exploring the project site.
Upon finding the large dump truck unlocked, he climbed into the cab and began playing with the vehicle controls. He apparently released the emergency brake, and the truck began to roll down the hill. The truck rapidly picked up speed. The boy was afraid to jump out and did not know how to apply the brakes. The truck crashed into a parked auto at the bottom of the hill. The truck remained upright, but the boy suffered serious cuts and a broken leg. The resultant investigation revealed that, although the safety program specified that unattended vehicles would be locked and the wheels chocked, there was no verification that these rules had been communicated to the drivers.[1] An inspection of the emergency brake mechanism revealed that it was worn and easily disengaged. It could be disengaged with only a slight bump. There had been no truck safety inspections or requests to adjust the emergency brake linkage.