Metal/Nonmetal

MNM Fatality – 5/21/20

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On May 21, 2020, two miners were working to hoist an electric motor from its base by anchoring a hoist to an overhead, unsecured steel pipe (at Missouri underground limestone mine with 51 employees*). The steel pipe slid out of place and struck one of the miners (60 year-old plant maintenance worker with 27 years and 9 weeks total mining experience*) in the head and back. The miner died on May 23, 2020, due to complications from his injuries.

Best Practices: 

  • Ensure load anchor locations are stable, substantial and adequate to support the load.
  • Establish and discuss safe work procedures before beginning work and ensure those procedures are followed.
  • Identify and control all hazards associated with the work to be performed and the methods to properly protect persons.
  • Follow the manufacturer’s recommended safe work procedures for the maintenance task.
  • Examine work areas for hazards that may be created as a result of the work being performed.
  • Position yourself in areas where you will not be exposed to hazards resulting from a sudden release of energy. Be aware of your location in relation to machine parts that can move.

Additional Information: 

This is the first fatality in 2020 classified as “Hand Tools.” *(Italicized details added by safeminers.com)

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

MNM Fatality – 9/1/20

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On September 1, 2020, a miner (53 year-old plant helper in Texas with 2 years and 8 weeks of experience*) died when he fell while attempting to close a hatch on the top of a bulk material trailer (at an industrial sand plant with 20 employees). The miner was wearing a fall protection harness but his lanyard was not attached to a secure anchorage.

Best Practices: 

  • Encourage the use of automated hatches on tanks and trailers.
  • Provide and ensure the use of an effective fall arrest and secure anchorage system.
  • Provide safe access to all work areas and ensure truck and trailer access and work platforms are properly designed, maintained, and used.
  • Examine work areas and equipment. Don’t use unsafe work areas and equipment until repairs are made.
  • Refresh miner training on safe work procedures after returning from periods of shutdown, and routinely monitor work habits.

Additional Information: 

This is the 15th fatality reported in 2020, and the fourth classified as “Slip or Fall of Person.” *(Italicized details added by safeminers.com)

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

MNM Fatality – 8/18/20

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On August 18, 2020, a miner (21 year-old laborer in California with one year and twelve weeks of experience*) was killed while attempting to clear a material blockage (at a sand and gravel mine with 20 employees*). The miner entered the cone crusher to begin work when the material shifted and engulfed him.  He was extracted from the crusher and taken to a hospital, where he died the next day.

Best Practices: 

  • Properly design chutes and crushers to prevent blockages. Install a heavy screen (grizzly) to control the size of material and prevent clogging.
  • Equip chutes with mechanical devices such as vibrating shakers or air cannons to loosen blockages, or provide other effective means of handling material, so miners are not exposed to entrapment hazards by falling or sliding material.
  • Establish and discuss policies and procedures for safely clearing crushers.
  • Train miners to recognize and safely remove all potential hazards before beginning work and when clearing blocked crushers.

Additional Information: 

This is the 13th fatality reported in 2020, and the second classified as “Fall of Material.”  – * (Italicized details added by safeminers.com)

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

MNM Fatality – 7/29/20

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On July 29, 2020, a miner (63 year-old plant operator in Missouri with six years of experience*) was injured when his arm became entangled in a stacker conveyor belt (at a sand and gravel mine with three employees*). The victim was airlifted to a trauma center where he passed away a week later.

Best Practices: 

  • Turn off, lock out power sources and block against motion before removing or bypassing a guard or other safety device to clean, repair, perform maintenance or clear a blockage on a belt conveyor.
  • Never clean pulleys or idlers manually while belt conveyors are operating.
  • Avoid wearing loose-fitting clothing and keep tools, body parts and long hair away from moving belt conveyor components.
  • Train all personnel in safe work procedures.
  • Properly guard moving machine parts to protect persons from contact that could cause injury.

Additional Information: 

This is the 12th fatality reported in 2020, and the second classified as “Powered Haulage.” – * (Italicized details added by safeminers.com)

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

MNM Fatality – 7/24/20

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On July 24, 2020, two miners were loading explosives from inside an aerial lift’s basket when the basket jolted upward into the mine roof, causing the death of one of the miners.

Best Practices: 

  • Check all equipment before using it. Report all defects affecting safety to a responsible person for correction.
  • Service and maintain hydraulic systems according to the manufacturer’s specifications and schedules. Excessive pressure in a hydraulic circuit can drastically alter the control of booms, etc., creating serious hazards.
  • Instruct aerial lift users on hazard recognition and safe job procedures to avoid unsafe conditions.
  • Train lift operators in safe operating procedures listed in the operator’s manual.
  • Report equipment malfunctions and remove the equipment from service until repaired.

Additional Information: 

This is the 12th fatality reported in 2020, and the third classified as “Machinery.”

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

MNM Fatality – 7/9/20

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On July 9, 2020, a mine superintendent was electrocuted while attempting to reverse the polarity of a 4,160 VAC circuit by switching the leads inside an energized 4,160 VAC enclosure that contained a vacuum circuit breaker and disconnect.

Best Practices: 

  • Follow these steps before performing electrical work inside a high voltage enclosure:
    1. Locate the high voltage visual disconnect away from the enclosure that supplies incoming electrical power to the enclosure.
    2. Open the visual disconnect to provide visual evidence that the incoming power cable(s) or conductors have been de-energized.
    3. Lock-out and tag-out the visual disconnect yourself. Never rely on others to do this for you.
    4. Ground the de-energized conductors.
  • Verify circuits are de-energized using properly rated electrical meters and non-contact voltage testers.
  • Ensure properly qualified miners perform all work on high voltage equipment.
  • Wear properly rated and well maintained personal protective equipment, including arc flash protection such as a hood, gloves, shirt and pants.
  • Train miners on safe work practices for high voltage electrical equipment and circuits.

Additional Information: 

This is the 11th fatality reported in 2020, and the first classified as “electrical.”

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

MNM Fatality – 6/19/20

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On June 19, 2020, a miner died while inspecting a stockpile for oversized material. As the victim walked along the toe of the stockpile, a portion of the stockpile collapsed, covering him with approximately four feet of material.

Best Practices: 

  • Establish and 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 persons.
  • Task train everyone to recognize potential hazardous conditions that can decrease bank or slope stability and ensure they understand safe job procedures for eliminating hazards.
  • Stay clear of potentially unstable areas. Barricade the toe area to prevent access where hazards have not been corrected.
  • Oversteepened slopes may be flattened from the top of the stockpile by using a bulldozer to gradually cut down the slope.

Additional Information: 

This is the 10th fatality reported in 2020, and the first classified as “Falling, Rolling, or Sliding Rock or Material of Any Kind.”

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

MNM Fatality – 6/13/20

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On June 13, 2020, a dragline was found submerged in 25 feet of water where a miner had been using it to remove material from a pond. Divers attempted to locate the dragline operator, and after two days the dragline was extricated from the pond. The victim was recovered from the engine compartment behind the operator’s cab.

Best Practices: 

  • Maintain control of operating mobile equipment.
  • Keep all exits clear in cabs, including alternate and emergency exits, and make sure the doors open freely before beginning work.
  • Retrofit older models of equipment with current automatic braking systems.
  • Ensure all controls and brakes are set to the appropriate position for the task.

Additional Information: 

This is the ninth fatality reported in 2020, and the second classified as “Machinery”

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

MNM Fatality – 6/1/20

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On June 1, 2020, a contract truck driver died after falling from the top of his trailer.  The victim received first aid/CPR at the scene and passed away after being transported to a local hospital.

Best Practices: 

  • Discuss work procedures; identify all potential hazards to do the job safely.
  • Train everyone to recognize fall hazards and ensure that safe work procedures are discussed and established.
  • Include safe truck tarping requirements in site-specific hazard training.
  • Provide truck tarping safe access facilities where needed.
  • Provide an effective fall arrest secure anchorage system. Ensure that people wear and attach fall protection connecting devices where there is a danger of falling.
  • Use automatic tarp deploying systems to prevent people from working from heights.

Additional Information: 

This is the 8th fatality reported in 2020, and the third classified as “Slip or Fall of Person.”

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

MNM Fatality – 5/2/20

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On May 2, 2020, a miner entered a dredged sand and gravel bin through a lower access hatch to clear an obstruction. The miner was clearing the blockage with a bar when the material inside the bin fell and engulfed him.

Best Practices: 

  1. Lock-out, tag-out. Never enter a bin until the supply and discharge equipment is locked out.
  2. Train miners to recognize and safely remove all potential hazards before beginning work and when clearing blocked hoppers.
  3. Equip bins with mechanical devices such as vibrating shakers or air cannons to loosen blockages, or provide other effective means of handling material so miners are not exposed to entrapment hazards by falling or sliding material.
  4. Follow manufacturer recommendations for clearing out blockages.
  5. Establish and discuss policies and procedures for safely clearing bins.
  6. Install a heavy screen (grizzly) to control the size of the material and prevent clogging.

Additional Information: 

This is the 7th fatality reported in 2020, and the second classified as “Handling Material.”

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