FALL OF ROOF OR BACK at Blackjewel L.L.C.
First lift was being mined from crosscut between No. 5 & No. 6 entries. The pillar lift cut through into the gob, a high angle slip fell out of the lift & acres the entry above the anchorage of roof supports. The fall which was about 12' wide & over 10' high blocked 2 mobile roof supports. Roof supports were recovered by tramming them out No. 6 entry.
U.S. Mine Safety and Health Administration