EE WAS DESCENDING FROM A CRANE OPERATING CAB. HIS LEFT HAND SLIPPED OFF THE RAIL AND HE LOST HIS FOOTING. HE CAUGHT HIMSELF WITH HIS RIGHT HAND THUS HANGING BY HIS RIGHT ARM NOT TOUCHING THE G ROUND. DISCOMFORT WAS NOT A PROBLEM INITIALLY, BUT AS TIME PROGRESSED HE EXPERIENCED GREAT DISCOMFORT. A DR. VISIT PLACED HIM ON RESTRICTED WORK DUTY.