EE WAS STANDING ON SIDE OF SCAFFOLD, ABOUT 1.5' FROM GROUND, REMOVING ECCENTRIC FROM CRUSHER. EE'S FOOT SLIPPED AND HE FELL TO THE GROUND, STRIKING HIS BACK (CERVICAL & UPPER BACK CONTUSION & STRAIN). EE WAS SEEN AT EMERGENCY ROOM AND RELEASED TO FULL DUTY. CONTINUED TO BOTHER HIM, SO EE WAS STARTED ON PHYSICAL THERAPY FOR A FEW SESSIONS. CONTINUED TO DO REG. DUTIES.