A ROOF FALL OCCURRED AT SPAD 90 ON NO. 4 ENTRY OF NO. 2 HAULWAY INTAKE. THE FALL MEASURED 60'X20'X10'. ROOF WAS BOLTED 6 YEARS AGO BOLTS WERE FULLY GROUTED, BOTH SIDES WERE CRIBED, ROOF DID NO T WORK IT JUST FELL. NO EQUIPMENT WAS INVOLVED. NO VENTILATION WAS DISTURBED, NO INJURY OCCURRED, AND THE FALL WILL NOT BE CLEANED UP.