Ledgeman/Hand

Cracked stone fell and crushed employee. Employee didn't follow procedure. Employee's lanyard wasn't tied off and the employee was using a foot wedge and jackhammer with 1 1/4" bit. Employee should have been using 3/4" plug drill and 5" tether and wedge. The employee was drilling from the base and should have been drilling at the top.

Texto original en inglés de la MSHA

Matthew W. Kantala IV, ledge man, age 36, was fatally injured on July 20, 2017, while performing secondary breakage operations on a block of granite. A large piece of granite broke loose and knocked Kantala off a ledge to the mine floor approximately 10 feet below. The large piece of granite hit the ledge and broke into three pieces. One of the pieces, weighing an estimated six tons, fell on Kantala. The accident occurred because the mine operator: (1) did not block material during secondary breakage operations to prevent movement; (2) did not make sure miners were using fall protection; and (3) did not conduct an adequate workplace examination –by not identifying a prominent geological anomaly in the granite and not promptly initiating appropriate action to correct such condition.

1. The mine operator did not block material to prevent movement during secondary breakage operations.

   Acción correctiva: The mine operator purchased new equipment and trained miners in a newly developed plan with procedures for different methods of secondary breakage. This plan addresses and requires the prevention of movement of material.

2. The mine operator did not assure that miners used fall protection where there was a danger of falling.

   Acción correctiva: The mine operator purchased new equipment and trained miners in a newly developed plan with procedures for different methods of secondary breakage. This plan addresses and requires the use of fall protection.

3. The mine operator did not conduct adequate workplace examinations.

   Acción correctiva: The mine operator trained miners in a newly developed plan with procedures for different methods of secondary breakage. This plan addresses workplace examinations and actions to be taken to address any hazardous conditions found.

Hallazgos del informe final de investigación de la MSHA, que sustituye la narrativa preliminar anterior.

Actividad al momento del incidente

Hand Tools (Powered)

Subunidad / ubicación

STRIP, QUARY, OPEN PIT

Tipo de accidente

Golpeado por objeto que cae

Fuente de la lesión

BROKEN ROCK,COAL,ORE,WSTE

Naturaleza de la lesión

CRUSHING

Parte del cuerpo afectada

MULTIPLE PARTS (MORE THAN ONE MAJOR)

Experiencia minera total

0 years

Experiencia en esta mina

0 years

Experiencia en este puesto

0 years

Grado de la lesión

FATALITY