EE WAS PART OF A CREW RESTOCKING DRAP ROPES ON DRAGLINE 79. CREW WAS ATTEMPTING TO REMOVE WEDGES FROM SOCKET USING A LARGE KNOCKER (BATTERING RAM). KNOCKER IS SISPENDED FROM CRANE AND THEN SWU NG BY THE CREW. ABOUT THE 3RD ATTEMPT ON THE RIGHT WEDGE, ONE OF THE CREW TRIPPED AND FELL TO THE GROUND. THE KNOCKER BECAME UNSTABLE & THE REST OF CREW RELEASED GRIP. THUMB PINCHED BETWEEN K