ROOF FALL WAS DISCOVERED IN THE 2 EAST MAINS RETURN #6 ENTRY, ONE CROSSCUT INBY SURVEY STATION #4706. THE FALL MEASURED 20' X 20' X 5'. ROOF HAD BEEN SUPPORTED WITH 48"" & 60"" CONVENTIONAL ROOF BOLTS. DATE OF DEVELOPMENT WAS 03/31/81. THE FALL WILL BE CLEANED UP AND THE AREA RESUPPORTED