D M A Mining Inc · Tipo de accidente, sin lesiones
FAIL WAS 42 IN THICK 60 FT LONG CAUSE OF FALL UNKNOWN
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FAIL WAS 42 IN THICK 60 FT LONG CAUSE OF FALL UNKNOWN
ROCK FALL #7 HEADING AT 23 CROSSCUT 42 IN THICK APPROX 60 FT LONG
ROCK FELL WAS PAAROX. 5 FEET TICK, 100 FEET LONG, 4 FEET BOLTS WERE BEING USED. CAUSE OF FALL UNKNOWN. WORKING WITHIN 60 FEET OFF AUGER HOLES AND OUT CROP.