FALL OF ROOF OR BACK at Greenbrier Minerals LLC
An unintentional roof fall was found in No 2 Entry Return Aircourse, one break inby spad 4709, on No. 2 West-Submains. Fall measured approx 7' high, 19' wide, 10' long. Fall will not be cleaned up. Approaches dangered and cribbed/timbered. The fall does not interrupt ventilation/block escapeways/no injuries reported. Fall is due to weathering of the mine roof.
U.S. Mine Safety and Health Administration