EMPLOYEE WAS WALKING THROUGH A CROSSCUT LOOKING FOR SOME TIE WIRE, WHEN HE TRIPPED OVER A LUMP OF COAL AND FELL TO FLOOR; HE CAUGHT HIMSELF WITH HIS HANDS JUST BEFORE HIS HEAD HIT FLOOR. LATER IN SHIFT, HE WAS PULLING AND TWISTING ON ASTUCK DRILL STEEL AND FELT A POP IN HIS RIGHT WRIST. THIS WAS FIRST NOTICE OF PAIN IN WRIST--IT GREW WORSE; HE WAS TAKEN TO EMERGENCY DEPT.