SETTING CRIBS AND BARS ALONG TRACK ENTRY. HE WAS HOLDING A CRIB TO BLOCK ABOVE THE BEAM AND HIS CO-WORKER WAS USING A SLEDGE HAMMER TO MAKE IT FIT. THE CO-WORKER MISSED THE CRIB AND STRUCK THE EE RIGHT INDEX FINGER. X-RAY SHOWED A BREAK IN THE TIP OF HIS RIGHT INDEX FINGER. HE RETURNED TO WORK HIS NEXT SHIFT ON REGULAR DUTY