Mining Incidents
Fatality · MSHA Record #220250580003

Prep Plant Foreman

February 22, 2025 at 2:00 AM
GCC Dacotah Inc · Facility · Metal/Non-Metal
Contractor on site: B8225
Pennington County, SD
Classification POWERED HAULAGE
Type Caught in, under or between (Not Elsewhere Classified)
Investigator narrative
A miner received fatal injuries. After a bridge collapsed that the miner was operating a skid steer loader on. The miner was clearing refractory brick form a rotary kiln. The bridge that was installed by the property owner collapsed. The skid steer fell approximately 10 feet into a hopper, causing the payload of brick to engulf the operator causing fatal wounds.
Final MSHA investigation
On February 22, 2025, at approximately 2:00 a.m., Angel Gustavo Perez-Perez, a 28-year-old contract miner for Elite Refractory, LLC (Elite), with approximately 17 weeks of mining experience, was fatally injured when the bridge providing access into the kiln shifted, causing the skid steer loader he was operating to fall backward into the cooler chute. The accident occurred because: 1) the mine operator and contractor did not provide safe access to the inside of the kiln, and 2) the mine operator did not properly train miners to assemble and secure the ramp/bridge assembly for kiln access.
Root causes
  1. The mine operator and contractor did not provide safe access to the inside of the kiln.

    Corrective action: The mine operator and the contractor developed a new standard operating procedure (SOP) to ensure that the new bridge and ramp assembly will be secured according to manufacturer instructions, and miners were trained on the new SOP.

  2. The mine operator did not properly train miners to assemble and secure the ramp/bridge assembly for kiln access.

    Corrective action: The mine operator has developed a new task training procedure which includes assembly and securing the new assembly to the burner floor. Miners were trained on the new procedure.

Read the full report (PDF)

Findings from MSHA's final investigation report, which supersedes the preliminary narrative above.

Record details
Activity at time of incident
Front-End Loader
Subunit / location
MILL OPERATION/PREPARATION PLANT
Accident type
Caught in, under or between (Not Elsewhere Classified)
Source of injury
BRICK,CERAMIC
Nature of injury
CRUSHING
Body part affected
MULTIPLE PARTS (MORE THAN ONE MAJOR)
Total mining experience
6 years
Experience at this mine
0 years
Experience in this job
6 years
Degree of injury
FATALITY
Verify on MSHA

Every record on this page mirrors what MSHA publishes under its Open Government Data program, refreshed weekly. MSHA does not publish per-accident URLs (the Accidents data is distributed as a single bulk file), so this is how to retrieve the source for the specific record below:

Source: US Mine Safety and Health Administration (MSHA) · Document 220250580003 · Mine ID 3900022 Trainer view →