AN UNINTENTIONAL ROOF FALL OCCURRED IN THE 2ND MW INTAKE XC60 BETWEEN #6 & #7 ENTRY. APPROX. 38'LONG X 9'HIGH X 17'WIDE. THIS AREA HAD LAMINATED LIMESTONE & HAD BEEN BOLTED WITH 4' & 6' RESIN BOLTS. THIS AREA HAD BEEN CRIBBED & DANGERED OFF PRIOR TO THE FALL FOR BAD ROOF CONDITIONS.