A ROOF FALL OCCURRED IN THE SOUTH WEST MAINS FROM ENTRY #3 + 0 ENTRY #5 @ SURVEY STATION 25 + 40. THIS AREA HAD BEEN BOLTED WITH 6' FULLY GROUTED AND 9' DOUBLE LOCK BOLTS. FALL MEASURED 150' L ONG, 18 1/2' WIDE, 8-9' HIGH. ALL APPROACHED HAVE BEEN TIMBERED.