Lead/Zinc

MNM Fatality – 12/6/22

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On December 6, 2022, a miner died when the diesel tractor he was operating struck a pillar.  The miner was thrown from the tractor and crushed under the rear tire of the tractor.

Best Practices

  • Make sure miners wear seat belts when operating mobile equipment.
  • Make sure miners maintain control of equipment while it is in operation.
  • Train miners in the safe performance of their assigned tasks.

Additional Information

This is the 28th fatality reported in 2022, and the fifth classified as “Powered Haulage.”

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 7/13/21

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On July 13, 2021, a rock falling from a pillar in a benched area at a room-and-pillar zinc mine with 88 employees in Strawberry Plains, TN, struck a 68 year old scaler operator with 10 years and 40 weeks experience*. The miner was in a personnel lift basket near ground level to load blasting supplies.  The rock fell from a height of approximately 40 feet, striking the basket. 

Best Practices: 

  • Support or remove loose material from a safe position before beginning work.
  • Design, install, and maintain the ground support to control the ground where people work or travel, after blasting, and as ground conditions warrant.
  • Use scaling equipment capable of maintaining safe ground conditions suitable for the mining dimensions.
  • Establish safe work procedures to ensure a safe work location for miners conducting scaling operations.  Train all miners to recognize hazards and understand these procedures.
  • Perform thorough workplace examinations where miners work or travel.
  • Be alert for changing conditions, especially after activities that could cause back/roof disturbance.

Additional Information: 

This is the 18th fatality reported in 2021, and the second classified as “Fall of Face/Rib/Highwall.”  (*details added by safeminers.com from MSHA data.)

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 2/22/21

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On Feb. 22, 2021, a 26-year-old underground chute puller was fatally injured as a passenger of a rail-mounted locomotive when he was crushed between the deck of the locomotive and an overhead chute at a lead-zinc ore underground mine with 114 employees in Strawberry Plains, TN*.

Best Practices: 

  • Install controls such as rail stops at loading points, crossings, etc., where track equipment must stop. 
  • Install reflective signs or warning lights well in advance of low clearance areas to alert miners of the upcoming hazard.
  • Develop safe working procedures to avoid low clearance and pinch point areas.  Monitor workers to ensure these procedures are followed.
  • Always look in the direction the equipment is moving in, and keep all body parts within the operator’s compartment while a vehicle is moving.
  • Conduct proper travelway examinations to identify and mitigate the hazards presented by low clearances. 
  • Train all workers to recognize potential hazards and understand safe job procedures and tasks to eliminate hazards before beginning work.

Additional Information: 

This is the 4th fatality reported in 2021, and the third classified as “Powered Haulage.” *(details added by safeminers.com from MSHA data)

Click here for: Preliminary Report (pdf), final report (pdf).

MNM Fatality – 1/16/21

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On Jan. 16, 2021, a miner (a 47 year old Driller/Blaster with 7y 32w experience*) was fatally injured (at a mine in Anchorage, AK with 251 employees*) while using a tool to remove a down-the-hole hammer. The drill motor turned unexpectedly, pinning the driller’s leg between the tool and the drill mast.

Best Practices: 

  • Establish and discuss safe work procedures before starting any task.
  • Identify and control all hazards. Train all workers to recognize potential hazards and understand safe job procedures to eliminate hazards before beginning work.
  • Follow manufacturer’s procedures for using equipment, and monitor employees for compliance.
  • Position yourself in a safe location away from potential “danger-zone” areas.
  • Train miners to safely perform their tasks.
  • Conduct equipment inspections and correct any defects affecting safety.

Additional Information: 

This is the first fatality reported in 2021, and the first classified as “Machinery.” (*details added by safeminers.com from MSHA data)

Click here for: Preliminary Report (pdf), Final Report (pdf).

Fatality #10 for Metal/Nonmetal Mining 2018

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On October 2, 2018, a 40-year old miner with 20 years of experience was fatally injured when struck by stemming sand ejected from a borehole.  While conducting a blasting operation in a new vertical raise, a contract foreman was attempting to clean out a previously blasted vertical borehole with high-pressure air.  A sudden release of energy forced stemming sand from the bottom of the borehole, striking the miner.

Best Practices

  • Assess the suitability of blasting methods when blasts do not perform as intended.
  • Use water to clean out the bottom of boreholes used for blasting.
  • Never position yourself directly over or in front of the collar of a borehole when cleaning it out.
  • Ensure miners are adequately task trained.

Click here for: MSHA Preliminary Report (pdf), Final Report (pdf).

Fatality #3 for Metal/Nonmetal Mining 2015

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m03On January 21, 2015, a 54-year old miner (ground support) with 4 years of experience was killed at an underground lead mine.  The victim was operating a mechanical scaler in an intersection when a roof fall (55 feet long x 20 feet wide x 6 feet thick) occurred, covering the machine.

Best Practices

  • Establish safe work procedures that ensure a safe work location for miners conducting scaling operations, and train all miners to recognize and understand these procedures.
  • Discuss safe work procedures before beginning work.  Identify and control all hazards associated with the work to be performed and the methods to properly protect miners.
  • Always examine and test areas for loose ground before starting to work, after blasting, and as ground conditions warrant.
  • Identify and scale loose material from a safe position which will not expose miners to falling material.
  • Test for loose material frequently during work activities.  Be alert to any change of ground conditions.
  • Install ground support in roof and ribs where conditions warrant.
  • Use equipment with a reach that reduces the possibility of the equipment being struck by falling material.

Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf), Overview (powerpoint), Overview (pdf).

Fatality #11 for Metal/Nonmetal Mining 2009

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On June 11, 2009, a 57-year old mechanic with 31 years of experience was fatally injured at an underground lead/zinc mine while checking for a hydraulic leak on a loader. The victim leaned into the ejector plate relief port in the back of the loader bucket. The ejector plate of the bucket was retracted, crushing him against the back of the bucket.

Best Practices
  • Train persons to recognize work place hazards.
  • Establish safe work procedures before a task is performed.
  • Securely block equipment and components against hazardous motion at all times while performing maintenance work.
  • If equipment and components are to be moved, always verify persons are aware and in a safe location prior to movement.
  • Consult and follow the manufacturer's recommended safe work procedures for the maintenance task.

 
Click here for: MSHA Investigation Report(pdf), Overview(powerpoint), Overview(pdf)