AN UNINTENTIONAL ROOF FALL WAS DISCOVERED ON 9-13-01 IN THE #3 ENTRY (NEUTRAL AT BREAK #121 INTERSECTION. FALL WAS 6' HIGH X 25' LONG X 25' WIDE. NO EQUIPMENT OR PERSONNEL WERE INVOLVED AND TH ERE WERE NO INJURIES. THE AREA HAD BEEN BOLTED WITH 6' TENSION REBAR AND 9' CABLE BOLTS.