An employee was transporting steel casting flasks from one area on a finishing floor to another area using a forklift. One of the turnbuckle posts ripped from the flask causing the load to shift on the forks of the forklift. Both flasks then rolled off the forks and pinned the employee underneath them. This also caused the flask coverings to separate from the flasks and the employee was covered in approximately 700 degree sand from the chest down. The employee suffered burns to his legs and fractures to his pelvis.