PILLAR MINING WAS BEING DONE ON THE 9 LEFT PANEL 003 SECTION. A ROOF FALL OCCURRED IN THE #3 ENTRY AND FELL APPROXIMATELY 30' OUTBY THE MOBILE ROOF SUPPORTS. THE FALL WAS APPROX. 5' THICK X 18 ' WIDE. A MECHANICAL MALFUNCTION HAD OCCURRED TO THE MOBILE ROOF SUPPORT WHICH DELAYED IT IN BEING MOVED. THE AREA HAD BEEN SUPPORTED WITH 5' HIGH TECH BOLTS & HAD BEEN SUPPLEMENTED W/12' SUP