A ROOF FALL WAS DISCOVERED ON B-PANEL RETURN #1 ENTRY 1 BRK IN BY SPAD 11422 AND 2 BRKS OUT BY SPAD # 11449. THE FALL WAS APPROX 20' BY 80' BY 8'. THE AREA WAS BOLTED WITH 4' AND 6' TENSION BOLTS AND THE FALL WAS CRIBBED OFF. NO ONE WAS IN AREA AT THE TIME OF THE FALL.