THE SUPERVISOR WAS STANDING ON A 4-FOOT STEP LADDER INSTALLING SIGHTS AND FELL. HIS LOWER BACK LANDED ON HIS W-65 THAT WAS STRAPPED ON HIS BELT. THE X-RAY WAS NEGATIVE, BRUISE TO LOWER BACK AND STRAIN TO NECK. HIS FIRST DAY AWAY FROM WORK WAS 12/10/03.