ID W72FC2 | Add to lightbox | Download Sample

JERRY LAYNE, FOREMAN OF A CREW AT A TENNESSEE CONSOLIDATED COAL COMPANY MINE NEAR JASPER AND CHATTANOOGA, TENNESSEE, CHECKS THE ROOF OF A SHAFT PRIOR TO PLACING A FOUR TO FIVE FOOT ROOF BOLT IN THE CEILING AS A BRACE. THIS IS DANGEROUS WORK BECAUSE THE ROOF COULD CAVE IN BEFORE BEING BRACED