MNM Fatality – 5/2/23

On May 2, 2023, a miner died when he was struck by a mobile radial stacker conveyor.

Best Practices

  • Provide safe access to all working places by identifying hazards around belt conveyor systems.
  • Deenergize, lock out, tag out, and block equipment from hazardous motion before performing maintenance or repairs.
  • Provide remote e-stops to allow for safe access around moving equipment.
  • Train miners to work around moving equipment, including the hazards associated with the work to be performed. 

Additional Information

This is the 18th fatality reported in 2023, and the fourth classified as “Powered Haulage.”

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

Coal Fatality – 4/20/23

On April 20, 2023, a contract laborer died while removing the side plate off a shaker screen. The unsupported side plate fell over and struck him.

Best Practices

  • Block machinery components against motion before beginning maintenance or repairs.
  • Ensure blocking material is installed correctly and is of adequate size and strength to support and stabilize the load.
  • Ensure miners position themselves in a safe location and away from potential pinch point areas.
  • Train miners in safe work procedures and hazard recognition. Monitor personnel routinely to ensure they follow safe work procedures.

Additional Information

This is the 17th fatality reported in 2023, and the sixth classified as “Machinery.”

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

MNM Fatality – 4/11/23

 On April 11, 2023, a miner died when a 12-foot by 4-foot by 5-foot rock slab slid out of the rib from the hanging wall and crushed him. The miner was installing a bolt in the rib of a slusher stope. 

Best Practices

  • Design, install, and maintain suitable ground support where miners work or travel.
  • Examine and test ground conditions immediately before starting any work in an area and as conditions warrant during the shift.
  • Periodically review mining methods and ground support to ensure they are suitable for conditions.
  • Be alert to changing ground conditions.
  • Train miners on how to identify hazardous ground conditions and install suitable support.

Additional Information

This is the 16th fatality reported in 2023, and the second classified as “Fall of Roof or Back.”

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

MNM Fatality – 4/9/23

On April 9, 2023, a miner died while mounting off road truck tires on rims.  The miner was in the process of mounting a tire on its rim when another tire’s outer lock ring dislodged, became airborne and struck the victim in the head.

Best Practices

  • Use a tire safety cage (or other tire restraint device) when inflating a truck tire that is not on the truck.  Stand away from the inflating tire and out of the wheel and air blast trajectory during the inflation process.
  • Check tires and rims for damage and defects before performing work.
  • Before repairing tires, completely deflate the tires by removing the valve core and checking the valve stem to make sure it’s clear. 
  • Follow the manufacturer’s procedures and make sure tire and rim components are compatible.
  • Train miners who service tire and rim components. 

Additional Information

This is the 15th fatality reported in 2023, and the fifth classified as “Machinery.”

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

Coal Fatality – 3/22/23

On March 22, 2023, a miner died when the personnel carrier he was riding overturned.  Another miner riding on the personnel carrier accidentally actuated the emergency stop causing the personnel carrier to drift backwards down a grade.  The personnel carrier struck a coal rib and overturned, pinning the victim beneath it.  The victim was not riding in a designated seating area.

Best Practices

  • Maintain steering and braking components.
  • Perform functional tests of brakes and other safety devices during the pre-operational examination.
  • Tag out and remove equipment from service when defects affecting safety are found.
  • Do not exceed the maximum designed seating capacity of personnel carriers. 
  • Operate mobile equipment at speeds consistent with roadway conditions.
  • Task train miners on all equipment they operate.

Additional Information

This is the 14th fatality reported in 2023, and the third classified as “Powered Haulage.”

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

Coal Fatality – 3/18/23

On March 18, 2023, a miner died when the mine roof collapsed during the installation of standing roof support (crib) as part of the longwall recovery cycle.  The accident occurred in an area adjacent to a longwall shield.

Best Practices

  • Follow the approved Roof Control Plan.
  • Design, install, and maintain roof support where miners work or travel.
  • Never travel under unsupported roof. 
  • Conduct a visual examination of the roof, face, and ribs immediately before starting work in an area.
  • Be alert to changing roof conditions, especially during longwall recovery.

Additional Information

This is the 13th fatality reported in 2023, and the first classified as “Fall of Roof or Back.”

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

MNM Fatality – 3/15/23

On March 15, 2023, a miner drowned when the ground sloughed causing the excavator he was operating to topple into a water-filled pit.  The excavator became submerged in approximately 25 feet of water.

Best Practices

Mine operators should:
•    Install berms at the edge of the working surface so machinery can operate a safe distance from the water.
•    Evaluate ground conditions and mining methods before operating equipment near water.
•    Examine work areas and equipment and correct unsafe conditions.
•    Task train equipment operators on the operation of machinery.

Additional Information

This is the 12th fatality reported in 2023, and the fourth classified as “Machinery.”

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

MNM Fatality – 3/9/23

On March 9, 2023, a truck driver died when the tractor’s rear wheels ran over him.  A front-end loader struck the tractor-trailer from behind, causing the tractor to move forward.

Best Practices

  • Do not leave mobile equipment unattended unless the transmission is in the park position, and parking brakes of all units in a combination vehicle are set.
  • Chock or turn wheels of mobile equipment into a bank when parked on a grade.
  • Never position yourself in hazardous areas around mobile equipment.

Additional Information

This is the 11th fatality reported in 2023, and the second classified as “Powered Haulage.”

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

MNM Fatality – 3/1/23

On March 1, 2023, a miner died when the bulldozer he was operating went over an embankment, ejecting him from the operator’s cab.

Best Practices

Operators should train miners to:

  • Wear a seat belt while operating mobile equipment. 
  • Examine ground conditions before beginning work in an area and as ground conditions warrant during the work shift.  
  • Operate equipment safely, and to identify and report hazards.
  • Be aware of their position relative to edges of roadways and benches.

Additional Information

This is the tenth fatality reported in 2023, and the third classified as “Machinery.”

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

MNM Fatality – 1/30/23

On January 30, 2023, a miner died while troubleshooting a belt conveyor when he fell through a 37-inch-long by 34-inch-wide hole created by the removal of a section of grating.  The miner fell approximately 35 feet from the catwalk to the ground below.

Best Practices

Operators should:

  • Provide fall protection where there is a danger of falling and train miners on its proper use.
  • Replace guarding/grating that protects temporary access openings as soon as completing work.
  • Conduct workplace examinations and immediately correct any unsafe conditions.

Additional Information

This is the sixth fatality reported in 2023, and the first classified as “Slip or Fall of Person.”

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