A ROOF FALL WAS FOUND BY THE FIREBOSS DURING WEEKLY EXAMS IN THE #7 ENTRY OF THE SOUTHWEST MAINS RETURN AIRWAY. THE FALL WAS AT THE #1 CROSSCUT N THE LIGHTFOOT #2 MINE. THE FALL WAS APPROXIMAT ELY 30 FT LONG BY 20 FT WIDE BY 4 FT HIGH. THE FALL WAS ABOVE THE ANCHORAGE OF THE INSTALLED 42"" FULLY GROUTED ROOF BOLTS. THE FALL WILL NOT BE CLEANED UP. THE MINE IS NON-PRODUCING AT THIS T