INJURED WAS IN THE PROCESS OF BUILDING CRIBS IN THE TRACK ENTRY 3 BREAKS INBY #6 BELT HEAD. ACO-WORKER THREW A CRIB BLOCK BEFORE INJURED WAS READY AND SMASHED LEFT THUMB BETWEEN TWO CRIB BLOC KS. HIS THUMB WAS SPLINTED AND HE WENT TO HOPSITAL WERE HE WAS DIAGNOSED WITH A FRACTURE.