22 de diciembre de 1986
WV · Carbón
Empernador de techo, Empernador de roca, Empernador, Operador de soporte de techo móvil (MRS)
DESPRENDIMIENTO DE TECHO O BÓVEDA
Zachery Mining Inc · Golpeado por objeto que cae
SLICK IN TOP FE5L OUT. WENT INTO #7 HLG. AND STARTED PINNING FROM RIGHT TO LEFT THE JACKS WERE SET FOR THE ATRS HAD A FITTING AND ROPE BROKE ON IT AFTER START OF SHIFT. JACKS WERE BEING USED F OR REMAINDER OF3SHIFT ONLY.