FALL OF ROOF OR BACK at Kingwood Mining Company LLC
7 Mains 2, 6 entry, 19 block, MMU 002, 4-Way. 14' wide X 28' long X 7' high. Support: 6' 3/4"" resin bolts, 12' cable bolts, pans, brow straps, screen and cribs. Fall dangered off, additional roof support installed around fall. Fall clean-up plan developed and posted at fall.
U.S. Mine Safety and Health Administration