Mining Incidents
Muerte · Registro MSHA n.º 220162210040

Belt Foreman

29 de julio de 2016 a las 12:00 PM
Road Fork #51 Mine · Underground · Coal
Wyoming Condado, WV
Clasificación IGNICIÓN O EXPLOSIÓN DE GAS O POLVO
Tipo Contacto con objetos o sustancias calientes
Narrativa del investigador
On 7/29/16, employee and co-worker were re-welding guards over the drive shaft of the turbine pump located on the surface above the #3 Shaft. Shortly after welding was completed, an ignition occurred in the #3 Shaft and employee received significant burns and lacerations. The investigation of this event is on-going. Employee died from the injuries on 8/4/16.

Texto original en inglés de la MSHA

Investigación final de la MSHA
At 11:00 a.m. on Friday July 29, 2016, Donald E. Workman, Maintenance Foreman, and Charles H. Blankenship, Chief Electrician, traveled to the Rt. 16 #3 shaft to repair loose guarding. At approximately 12:00 p.m., the two miners were welding threaded blocks to secure the guarding from vibration when a methane explosion occurred from within the shaft. Workman, who was standing on expanded metal grating over the #3 shaft sustained serious injuries. On August 4, 2016, Mr. Workman died due to the injuries received during the accident. Blankenship did not receive any injuries during the accident.
Causas fundamentales
  1. Suitable precautions were not taken to prevent smoldering metal or sparks from entering the unventilated #3 shaft as required by 30 CFR §77.1112(a).

    Acción correctiva: After the accident, the operator submitted an addendum to the ventilation plan and it was approved by MSHA. This addendum lists safety precautions regarding the #3 shaft. The safety precautions include, but are not limited to, the following: No flame cutting, welding or grinding within 35 feet of the #3 shaft is permitted. If cutting or welding is needed within 35 feet of the shaft, a barrier will be installed to prevent sparks or hot slag from entering the shaft. Also, a cutting and welding plan shall be submitted to MSHA and must be approved by MSHA before cutting and welding is performed. Furthermore, the shaft will be continuously ventilated at all times. The shaft will be continuously monitored for methane at depths of 50 feet, 350 feet, and 550 feet any time work is done on the site. Work will be stopped if methane is detected at 1% or greater.

  2. Mine management failed to conduct adequate examinations for methane in the #3 shaft immediately before and periodically while welding directly over the #3 shaft as required by 30 CFR §77.1112(b). Though the methane concentration was below 1% above the shaft, no attempt was made to determine the concentration of methane below the collar of the #3 shaft.

    Acción correctiva: The operator submitted an addendum indicating the safety precautions to be taken during the #3 Shaft Rehabilitation/Ventilation Plan. This addendum has been made part of the approved ventilation plan.

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

Detalles del registro
Actividad al momento del incidente
Welding Or Cutting
Subunidad / ubicación
SURFACE AT UNDERGROUND
Tipo de accidente
Contacto con objetos o sustancias calientes
Fuente de la lesión
FLAME,FIRE,SMOKE,(Not Elsewhere Classified)
Naturaleza de la lesión
BURN OR SCALD (HEAT)
Parte del cuerpo afectada
MULTIPLE PARTS (MORE THAN ONE MAJOR)
Experiencia minera total
40 years
Experiencia en esta mina
0 years
Experiencia en este puesto
18 years
Grado de la lesión
FATALITY
Verificar en MSHA

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Fuente: Administración de Seguridad y Salud Minera de EE. UU. (MSHA) · Documento 220162210040 · ID de mina 4601544 Vista de capacitación →