Author: renewcomer

2019 Fatality #19 / Coal #9

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On September 5, 2019, a continuous mining machine helper was fatally injured when he was struck by a battery-powered scoop. The victim was in the #3 entry behind a wing curtain that provided ventilation to the #3 right crosscut being mined. The scoop was trammed through the #3 left crosscut and struck the victim as it made a right-hand turn and passed through the wing curtain.

Best Practices: 

  • Install and maintain proximity detection systems on mobile section equipment.
  • Before operating mobile equipment, inform miners of your travel route – especially if changes are being made. Proceed with caution and watch for miners on foot.
  • STOP and SOUND an audible warning device before tramming equipment through ventilation curtains.
  • STAY ALERT around mobile section equipment. Communicate your presence and intended movements to equipment operators.
  • Use transparent curtains for ventilation controls on working sections.
  • Be aware that noise can cause moving equipment to not be heard.

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

2019 Fatality #20 / Coal #10

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On September 17, 2019, an electrician was electrocuted when he contacted an energized conductor. The victim contacted a 995 VAC connector while attempting to troubleshoot the scrubber motor circuit on a continuous mining machine.

Best Practices: 

  • Lock out and tag out the electrical circuit yourself. Never rely on others to do this for you.
  • BEFORE performing electrical work:
    • Open the circuit breaker or load break switch away from the enclosure to de-energize the incoming power cables or conductors.
    • Open the visual disconnect away from the enclosure to confirm that the incoming power cables or conductors have been de-energized.
    • Lock out and tag out the visual disconnect.
    • Ground the de-energized phase conductors.
  • Wear properly rated and well maintained electrical gloves when troubleshooting or testing energized circuits.  After the electrical problem has been found, follow the proper steps before performing electrical work.
  • Use properly rated electrical meters and non-contact voltage testers to ensure electrical circuits have been de-energized.
  • Only use qualified, trained workers. Ensure electrical work is performed by a qualified electrician or someone trained to do electrical work under a qualified electrician’s direct supervision.
  • Identify circuits and circuit breakers. Properly identify all electrical circuits and circuit breakers before troubleshooting or performing electrical work.

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

MNM Examination of Working Places

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Click here to download a sample workplace exam form with the updated rule on it.

On September 30, 2019 MSHA published the latest revision of the MNM Examination of Working Places rule which changes the rule back to the originally published rule of January 23, 2017. A court ruled that changes to the published rule between then and when it went into effect in June of 2018 lessened the protection of the original rule which violates the “no-less protection” requirement of 101(a)(9) of the Federal Mine Safety and Health Act of 1977.

The reinstated rule goes into effect immediately and says:

(a) A competent person designated by the operator shall examine each working place at least once each shift before miners begin work in that place, for conditions that may adversely affect safety or health.

(1) The operator shall promptly notify miners in any affected areas of any conditions found that may adversely affect safety or health and promptly initiate appropriate action to correct such conditions.

(2) Conditions noted by the person conducting the examination that may present an imminent danger shall be brought to the immediate attention of the operator who shall withdraw all persons from the area affected (except persons referred to in section 104(c) of the Federal Mine Safety and Health Act of 1977) until the danger is abated.

(b) A record of each examination shall be made before the end of the shift for which the examination was conducted. The record shall contain the name of the person conducting the examination; date of the examination; location of all areas examined; and description of each condition found that may adversely affect the safety or health of miners.

(c) When a condition that may adversely affect safety or health is corrected, the examination record shall include, or be supplemented to include, the date of the corrective action.

(d) The operator shall maintain the examination records for at least one year, make the records available for inspection by authorized representatives of the Secretary and the representatives of miners, and provide these representatives a copy on request.

2019 Fatality #18 / Coal #8

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On August 29, 2019, a 25 year-old section foreman with 6 years of mining experience was fatally injured while exiting the longwall face. The victim was struck and covered by a portion of mine rib measuring 25 feet in length, 3 feet in depth, and 8 ½ feet in height.

Best Practices: 

  • Be aware of potential hazards when working or traveling near mine ribs.
  • Take additional safety precautions when geologic conditions, or an increase in mining height, could cause roof or rib hazards.
  • Train all miners to conduct thorough and more frequent examinations of the roof, face, and ribs when miners work or travel close to the longwall face.  Continuously monitor for changing conditions.
  • Install rib supports of proper length with surface area coverage, on cycle, and in a consistent pattern for the best protection against rib falls.

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

Serious Accident: Chemical Explosion

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On June 3, 2019, a railcar exploded when incompatible materials stored inside the car reacted and approximately 20,000 gallons of liquid waste derived fuel – fuel derived from hazardous waste – spewed from the railcar for 34 seconds. The eruption sent waste fuel several hundred feet into the air and ripped the manway hatch from the railcar. The hatch came to rest approximately 370 yards from the railcar. Droplets of waste fuel traveled more than 1/3 of a mile, landing on buildings, structures and vehicles near the facility. Agitators in several tanks were not maintained in functional condition. The facility was blending and storing incoming loads of waste fuel in railcars. A system of analysis was not in place to ensure compatibility of the blended waste fuel.

Best Practices: 

  • Evaluate work processes and develop acceptance and processing procedures to eliminate and mitigate hazards.
  • Use the proper container type (one that does not react with the hazardous material).
  • Make sure hazardous material storage containers are located in a safe area.
  • Review the uniform hazardous waste manifest and safety data sheets (SDSs) and regularly conduct chemical compatibility analyses. Don’t store incompatible materials together.
  • Do not reuse unwashed storage containers.
  • Regularly inspect equipment for proper operation. Remove damaged containers and equipment from service.
  • When handling hazardous material, use a properly designed, installed, and maintained ventilation system.
  • Provide warning signs that display the nature of the hazards and the required personal protective equipment.
  • Provide, use, and maintain fixed and portable gas detectors in areas where hazardous gases or vapors can accumulate.
  • Train miners on chemical hazards, emergency response procedures, and material handling activities including storage, loading, unloading, and transporting. Have SDSs accessible and ensure that all employees know how to read them.

Click here pdf of alert.

2019 Fatality #16 / MNM #10

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On Friday August 15, 2019, a 44-year-old contract electrician with 10 weeks of mining experience was electrocuted when he contacted a 120V cable while working inside a fire suppression system’s electrical panel.

Best Practices: 

  • Ensure miners receive proper training on all electrical related tasks. 
  • Ensure that circuit breakers and switches are properly labeled.
  • Properly lock-out and tag-out electrical circuits prior to working on them.
  • Wear properly rated and well maintained personal protective equipment while troubleshooting or testing energized circuits. 
  • Use properly insulated tools when performing electrical work.
  • Use properly rated electrical meters and non-contact voltage testers to ensure electrical circuits have been de-energized prior to performing electrical work. 

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

2019 Fatality #17 / Coal #7

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On August 20, 2019, a 20-year-old miner with 27 weeks of mining experience was fatally injured when he fell 40 feet down a shaft, to the concrete floor below. The victim was working with another miner, unloading a refuse kettle attached to an electric hoist, when he went over the unguarded edge of the shaft.

Best Practices: 

• Always use fall protection equipment and safety belts with lines, when working at heights and near openings where there is a danger of falling.
• Have properly designed gates, safety chains, handrails, guards, and ensure covers are securely in place at openings through which persons may fall.
• Always be aware of your surroundings and any hazards that may be present.
• Establish and discuss safe work procedures.
• Train personnel in safe work procedures regarding the use of handrails and fall protection equipment, and ensure their use.
• Conduct workplace examinations in order to identify and correct hazards prior to performing work. Report hazards that you cannot immediately correct to management.

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

MSHA Fire Alert

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In the ten months since early September 2018, MSHA has documented nine equipment fires involving Hitachi excavators and shovels and Caterpillar haul trucks, front end loaders and dozers. On September 7, 2018, a miner received fatal burn injuries when a fire occurred on a haul truck and the manually-activated fire suppression system did not function when activated. The remaining eight equipment fires were all reported as non-injury.

Access MSHA’s alert here (pdf).

Delaware Mine Safety Seminar

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Attend this free day full of mine safety presentations and good conversations with fellow miners and mine safety professionals on September 18, 2019.

The purpose of the workshop is to enhance safety at your operation through education and training in timely topics, such as:

  • Mine Hazard Training with Degraded Images
  • MSHA Update and Fatality Review
  • Supervisors/Contractors and MSHA Inspections
  • MSHA Workplace Examinations
  • MineFit: Mental and Physical Fitness in Mining
  • Training Principles and Practices

See more details and register here.

2019 Fatality #15 / Coal #6

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On Wednesday, August 7, 2019, a 42-year-old preparation plant electrician with 15 years of mining experience was electrocuted when he contacted an energized connection of a 4,160 VAC electrical circuit. The victim was in the plant’s Motor Control Center (MCC) adjusting the linkage between the disconnect lever and the internal components of the 4,160 VAC panel supplying power to the plant feed belt motors.

Best Practices: 

  • Lock Out and Tag Out the electrical circuit yourself and NEVER rely on others to do this for you.
  • Control Hazardous Energy!  Design and arrange MCCs so electrical equipment can be serviced without hazards.  Install and maintain a main disconnecting means located at a readily accessible point capable of disconnecting all ungrounded conductors from the circuit to safely service the equipment.
  • Install warning labels on line side terminals of circuit breakers and switches indicating that the terminal lugs remain energized when the circuit breaker or switch is open.
  • Before performing troubleshooting or electrical type work, develop a plan, communicate and discuss the plan with qualified electricians to ensure the task can be completed without creating hazardous situations.
  • Follow these steps BEFORE entering an electrical enclosure or performing electrical work: (1) Locate the circuit breaker or load break switch away from the enclosure and open it to de-energize the incoming power cable(s) or conductors. (2) Locate the visual disconnect away from the enclosure and open it 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. (4) Ground the de-energized conductors.
  • Wear properly rated and maintained electrical gloves when troubleshooting or testing energized circuits.
  • Focus on the task at hand and ensure safe work practices to complete the service.  A second qualified electrician should double check to ensure you have followed all necessary safety precautions.
  • Use properly rated electrical meters and non-contact voltage testers to ensure electrical circuits have been de-energized.

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