Copper

MNM Fatality – 1/28/22

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On January 28, 2022, while driving downhill, the 56 year-old driver of a concrete mixer truck was fatally injured after he lost control of the truck.  The truck overturned and the driver was ejected from the truck.  Another miner, who was in the truck, was also ejected and suffered serious injuries.

Best Practices: 

  • Each shift, inspect mobile equipment before placing it into operation.  Correct defects that pose a hazard to miners.  Tag out mobile equipment that can’t be corrected.
  • Assure brakes can stop and hold mobile equipment with its typical load on the maximum grade it travels.
  • Always wear seat belts when operating mobile equipment.
  • Maintain control of mobile equipment and drive at safe speeds.

Additional Information: 

This is the sixth fatality reported in 2022, and the second classified as “Powered Haulage.”

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

MNM Fatality – 9/15/21

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On September 15, 2021, a 33-year-old contract welder with nearly 11 years experience in mining and 7 weeks experience at the task he was performing* was fatally injured at a mine with 3700 employees and 115 contractors* when he crawled 40 feet into a 30-inch-diameter stainless-steel pipe.  The victim was welding a joint from the outside of the pipe, and then entered the pipe to troubleshoot issues related to argon gas leakage.  Coworkers found him unresponsive.

Best Practices: 

  • Remove dangerous working materials and gasses by means of a high volume of fresh airflow before entering confined spaces.
  • Assess risks and hazards before beginning work activities to determine what personal protective equipment (PPE) and atmospheric testing is needed prior to entry and during work execution.
  • Test atmospheres from a safe location with a calibrated gas monitor capable of detecting harmful and noxious gasses before entering and continuously while working in confined spaces.
  • Designate a miner to maintain contact with the miner entering a confined space in the form of visual or voice contact, or signal lines.
  • Ensure miners use the appropriate PPE, including dry, flame-retardant clothing and respiratory protection equipment, such as powered air-purifying respirators.
  • Train miners to identify confined spaces and understand their associated hazards.

Additional Information: 

This is the 26th fatality reported in 2021, and the first classified as “Other.” (*details added by safeminers.com from MSHA data.)

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

Fatality #17 for Metal/Nonmetal Mining 2018

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[Note: The Fatality Alert for this first appeared 10/16/19. As noted below the incident didn’t become a fatality until the victim died on 6/27/19.]

On June 15, 2018, a miner fell from a man basket when the weldment securing the basket to the shovel failed. The miner died of his injuries on June 27, 2019.

Best Practices

  • Check for damage. Routinely examine metal structures for signs of weakness (corrosion, fatigue cracks, bent/buckling beams, braces or columns, damaged/loose/missing connectors, broken welds, etc.).
  • Replace cracked equipment fast. Small cracks in equipment can quickly grow into a complete fracture. Take cracked mechanical components out of service immediately.
  • Know the limits. Consult with the manufacturer to determine the service/fatigue life of mechanical systems or parts.

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

MNM Fatality – March 6, 2019

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On March 6, 2019, a 35-year-old contractor with 35 weeks of experience was fatally injured when he was struck by a relief valve that was ejected from a 500-ton hydraulic jack.    The hydraulic jack was being engaged to make contact with the frame of a P&H 4100A shovel when the relief valve was ejected.

Best Practices: 

  • Inspect, examine, maintain, and evaluate all materials and system components used in the installation, replacement, or repair of pressurized systems to ensure they are suitable for use and meet minimum manufacturer’s specifications.
  • Test systems at lower pressures to verify connections and flow rates prior to full pressure use.
  • Position yourself in a safe location, away from any potential sources of failure, while pressurizing systems.   
  • Consult and follow the manufacturer’s recommended safe work procedures.
  • Establish and discuss safe work procedures that include hazard analysis before beginning work. Identify and control all hazards associated with the work to be performed and use methods to properly protect persons.

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

Fatality #13 for Metal/Nonmetal Mining 2018

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On October 25, 2018, a 29-year old laborer with 9 weeks of experience was fatally injured when the truck he was driving veered off the haul road and climbed an embankment, causing the truck to overturn.  He was not wearing a seatbelt.

Best Practices

  • Always wear a seat belt when operating mobile equipment.
  • Operate mobile equipment at speeds consistent with the conditions of roadways, tracks, grades, clearance, visibility, curves, and traffic.
  • Maintain control and stay alert when operating mobile equipment, especially vehicles with high centers of gravity.

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

Fatality #7 for Metal/Nonmetal Mining 2017

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On July 27, 2017, a miner was fatally injured when his light-duty truck was run over by a haul truck. The victim was pronounced dead at the scene.

Best Practices

  •  Do not park smaller vehicles in a large truck’s potential path of movement.• Before moving mobile equipment, be certain no one is in the intended path; sound the horn to warn possible unseen persons; and wait to give them time to move to a safe location.
  • Ensure all persons are trained to recognize workplace hazards – specifically, the limited visibility and blind areas inherent to operation of large equipment and the hazard of mobile equipment traveling near them.
  • Establish procedures that require smaller vehicles to maintain a safe distance from large mobile equipment until eye contact is made or approval to move closer is obtained from the mobile equipment operator. Provide training on these procedures.
  • Install cameras and collision avoidance systems on large trucks to protect persons.
  • Regularly monitor work practices and reinforce their importance. Take immediate action to correct unsafe conditions or work practices.

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

Fatality #4 for Metal/Nonmetal Mining 2016

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m04On April 9, 2016, a 25-year old plant operator with 4 years of mining experience was fatally injured at a surface copper ore mine. He was found unresponsive, kneeling with his face against a stainless steel flange that was connected to a high-density polyethylene pipe. The victim appeared to have received an electrical shock.

Best Practices

  • Establish and discuss safe work procedures that include hazard analysis before beginning work. Identify and control all hazards associated with the work to be performed and use methods to properly protect persons.
  • Train all persons to understand the hazards associated with working near energized electrical conductors.
  • Use properly rated Personal Protective Equipment (PPE) including Arc Flash Protection such as a hood, gloves, shirt, and pants.
  • Ensure that all electrical systems are safely designed and properly installed and that all metal enclosing or encasing electrical circuits are grounded or provided with equivalent protection.
  • Provide equipment grounding conductors, with a sufficiently low impedance to limit the voltage to ground, for metal enclosures.  Use a properly rated meter to identify any stray electrical currents which may be present.
  • Lock Out, Tag Out, and Try: Place your lock and tag on the disconnecting device and test for power.

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

Fatality #4 for Metal/Nonmetal Mining 2013

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ftl2013m04On April 4, 2013, a 30-year old general foreman with 6 years of experience was killed at a copper ore operation. An excavator was being used to position a 36-inch diameter by 40-foot long section of pipe to connect it to another section of pipe. The pipe, attached to the excavator by a lifting strap, shifted and fell on the victim.

Best Practices

  • Establish and discuss safe work procedures. Identify and control all hazards associated with the work to be performed along with the methods to properly protect persons.
  • Task train all persons to recognize all potential hazardous conditions and to understand safe job procedures for elimination of the hazards before beginning work.
  • Attach taglines to loads that may require steadying or guidance while suspended.
  • Securely block equipment against hazardous motion to ensure energy cannot be released while performing work.
  • Never work in the fall path of objects/materials of massive weights having the potential of becoming off-balanced while in a raised position.
  • Implement measures to ensure persons are properly positioned and protected from hazards while performing a task.
  • Monitor personnel routinely to determine that safe work procedures are followed.

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

Fatality #13 for Metal/Nonmetal Mining 2012

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On September 22, 2012, a 34-year old contract laborer with 6 days of experience was killed when he fell through a 6 ft. X 8 ft. hole that was partially covered with 2″ X 4″ boards and ¾ ” thick plywood. He fell into a chute landing on a belt conveyor 30 feet below. The victim was assigned fire watch duties on a welding/cutting operation that was taking place on the floor above him.

Best Practices
 

  • Establish and discuss safe work procedures. Identify and control all hazards. Train all persons to recognize and understand safe job procedures before beginning work.
  • Always use fall protection when working where a fall hazard exists.
  • Protect openings near travelways through which persons may fall by installing appropriately designed railings, barriers, or covers.
  • Keep temporary access opening covers secured in place at all times when the opening is not being used. Replace deteriorated floor plating and grating.
  • Ensure that areas are barricaded or have warning signs posted at all approaches if hazards exist that are not immediately obvious.

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

Fatality #12 for Metal/Nonmetal Mining 2010

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On June 20, 2010, a 52 year-old mechanic with 8 years of experience was fatally injured at a surface copper operation. A ½ ton pickup truck had parked in front of a 240 ton haul truck that was also parked. The haul truck pulled forward and struck the pickup truck fatally injuring the driver and seriously injuring another miner.

Best Practices

  • Do not park smaller vehicles in a large truck’s potential path of movement.
  • Before moving mobile equipment, be certain no one is in the intended path, sound the horn to warn possible unseen persons, and wait to give them time to move to a safe location.
  • Ensure all persons are trained to recognize work place hazards, specifically the limited visibility and blind areas inherent to operation of large equipment and the hazard of mobile equipment traveling near them.
  • Establish procedures that require smaller vehicles to maintain a safe distance from large mobile equipment until eye contact is made or approval to move closer is obtained from the mobile equipment operator. Provide training in these procedures.
  • Install cameras and collision avoidance systems on large trucks to protect persons.
  • Regularly monitor work practices and reinforce the importance of them. Take immediate action to correct unsafe conditions or work practices.

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