WHILE LOADING BELT STRUCTURE INTO SCOOP OUTSIDE OF UNDERGROUND MINE, EE TRIPPED OVER THE EDGE OF THE SCOOP BUCKET AND FELL. HE INJURED HIS LEFT ELBOW WHEN HE TRIED CATCHING HIMSELF, STIFF ARME D AGAINST THE GROUND. CAUSE OF INJURY WAS AWARENESS. COMPLIANCE WITH RULES & REGS. NOT A FACTOR. PROTECTIVE ITEMS OR TRAINING NOT A FACTOR.