THE INJURED EE WAS WORKING IN THE #3 CLINKER COOLER BREAKER AREA USING A TORCH TO CUT OUT GRIZZLEY BARS. THE EE PLACED HIS FOOT ON A SECTION OF FRAMEWORK WHICH HAD LOOSE CLINKER BUILD-UP ON IT . THE EE LOST HIS FOOTING AND BEGAN TO FALL. HE CAUGHT HIMSELF WITH HIS LEFT ARM AND FELT PAIN IN HIS LEFT SHOULDER. HE WAS PLACED ON A RESTRICTED DUTY ON 4/13/99 & IS HAVING AN MRI.