WHILE UNLOADING SHUTTLE CAR CABLE FROM SCOOP BUCHET WHILE TRAVELING ALONG SIDE CABLE BECAME KNOTTED. EMPLOYEE LEANED OVER SIDE OF SCOOP BUCKET TO UNTANGLE CABLE WHILE SCOOP OPERATOR HELD SCOOP IN POSITION SCOOP DRIFTED APPROX 6"" OVER BOTTOM ROLL PINCHING EMPLOYEE BETWEEN BUCKET SIDE, EMPLOYEE'S SELF RESCUER AND MINE ROOF.