A ROOF FALL OCCURED ONT HE 003 PILLAR SECTION THAT MEASURED APPROX. 20'X40'X5' IT FELL OUTBY THE MOBILE ROOF SUPPORTS APPROX. 20'. THE FALL WAS INBY #47 CROSSCUT OF THE 3LEFT PANEL OF NORTH MA INS. THIS AREA HAD BEEN SUPPORTED WITH 5' RESINGBOLTS, AND SUPPLEMENTED WITH 9' SUPER BOLTS.