A ROOF FALL OCCURRED MEASURING 20' WIDE BY 10' HIGH BY 260' LONG BEGINNING AT THE NO.7 AND NO.8 ENTRY. THE TOP STARTED WORKING ON THE 2ND SHIFT AND WAS CRIBBED AND THEN CENTER CRIBBED DOWN THE ENTRY. IT BEGAN WORKING AGAIN ON THE 3RD SHIFT AND MORE CRIBS WERE ADDED, BUT AT 4:00 AM IT FELL.