EE WAS STANDING ON A STAIRWAY AFTER COMPLETING WORK ON A CONVEYOR BELT. HE BENT OVER TO RETRIEVE HIS TOOLBAG AND FEL A PINCH/PULL IN HIS LOWER BACK. HE COMPLETED THE SHIFT AND RETURNED TO WORK THE FOLLOWING DAY. DUE TO SEVERED BACK PAIN HE WAS SENT TO THE DOCTOR.