AN UNINTENTIONAL ROOF FALL WAS DISCOVERED ON THE MAIN LINE TRACK AT 0130 ON 8-27-00. THERE WAS NO ONE IN THE AREA AT THE TIME OF THE FALL. THE FALL MEASURED 50' LONG, 20' WIDE, AND 5' HIGH. TH E AREA WAS SUPPORTED WITH 48"" RESIN ROOF BOLTS AND WPPD STRA[S (3"" X 8"" X 16'). THE AREA WAS DEVELOPED IN NOVEMBER 1990. THE DISTANCE TO AN ACTIVE FACE IS APPROX. 3 MILES. THE FALL HAS BEEN C