Boy, 8, crushed by tractor at Willamstown AN EIGHT-year-old boy is in a critical condition after he was crushed by a tractor at a property in Williamstown, north of Adelaide near Gawler. The boy suffered chest and stomach injuries and was flown by rescue helicopter to Adelaide's Women's and Children's Hospital. Sergeant Paul Henderson of the Barossa Highway Patrol said the accident happened about 9am at a private sheep and horse property. The boy was riding on a pallet on the front end of a tractor driven by his father, as they prepared to do some seeding. Sgt Henderson said the child fell and was crushed under the tractor's front wheel. "He will be OK, apparently, " Sgt Henderson said. Safework SA has been notified.