Mine Manager fatality at EP Engineered Clays Corporation (U.S. Silica Company, LLC), MS, November 16, 2019

Employee was on the ground spotting a dump truck to prepare for dumping a load of fill dirt in excavation area. Employee's back was to the dozer that came up an incline and fatally struck employee from behind.

Johnnie E. Twiner, owner of Caney Creek Limestone, LLC, with 50 years total work experience, died on November 16, 2019 after a bulldozer struck him. While spotting for a haul truck, the victim stepped backwards into the path of the bulldozer that was backing up.

1. The victim approached a high traffic area without ensuring all of the equipment operators were aware of his close proximity and his intentions for approaching the equipment.

   Corrective action: The contractor provided training to all contractor employees on notifying equipment operators before approaching equipment.

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

Activity at time of incident

Idle

Subunit / location

MILL OPERATION/PREPARATION PLANT

Accident type

Caught in, under or between a moving and a stationary object

Source of injury

SURFACE MINING MACHINES

Nature of injury

CRUSHING

Body part affected

TRUNK, MULTIPLE PARTS

Total mining experience

50 years

Experience at this mine

25 years

Experience in this job

50 years

Degree of injury

FATALITY

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