EE WAS PULLING RAIL SPIKES WITH A SPIKE PULLER. HE WAS APPLYING LEVERAGE ON THE PULLER WHEN IT SLIPPED OFF THE HEAD OF THE SPIKE, CAUSING A ROTATOR CUFF TEAR IN HIS LEFT SHOULDER. DIAGNOSTICS WERE DONE AT EXPRESS CARE MEDICAL SERVICES. HE RETURNED TO RESTRICTED DUTY 6-19-00. HE MISSED NO SHIFTS.