Thunder Basin Coal Company LLCMining Incidents in 2022

A coal wall fire started from spontaneous combustion, in an inactive area of the mine property. It burned for over 30 minutes, due to difficult access.

A fire occurred on a coal shovel that MSHA believes was the result of an arc flash initiating a coal dust ignition. The fire damaged a motor and a compressor.

A large coal wall was found burning in a pit that was not currently being mined.

Injured Employee was torqueing a CAT 795 haul truck with a RAD 34 torque gun. Injured employee received a dislocation, laceration and break to EE's right thumb when it became caught between the extension of the RAD 34 and wheel motor.

An electrician was kneeling and when EE stood up EE felt knee pain. EE was assessed by doctors and released back to work. An MRI and follow up appointment were scheduled. EE was later diagnosed with a torn meniscus and began missing time on 08/11/2022.

A mechanic felt a pop in the knee stepping from a platform to a bull dozer. EE was diagnosed with some small meniscus tears and released back to work. EE continued to experience pain and was later scheduled for surgery. EE began missing time on 08/23/2022.

The employee reported back pain and was checked and release by a doctor at a clinic. The employee continued working, but was unable to report to work on July 1 due to back pain that increased during scheduled days off. An MRI was taken and a doctor diagnosed a chronic back condition, not related to any specific incident.

The employee felt a pop in the knee while getting into a pickup truck. EE continued to work until was diagnosed with a ruptured ACL on 3/11/22 and began losing time.

Was trying to lift 75 pound bag but pulled something in lower back.

An employee was lowering a folding handrail and caught EE's ring finger in a pinch-point, resulting in an avulsion of the tip.

A haul truck operator backed through a berm and tipped the truck over, resulting in a back injury.

While working in the wash bay the employee tripped and fell, resulting in a head abrasion and rib fractures.

In the process of moving the Rad 15 impact gun from one nut to the other, the injured employee received a fracture and laceration to EE's left ring finger when EE's finger became lodged between the Rad 15 impact gun and the wheel.

An employee with a history of shoulder injuries began experiencing increased pain after helping pry on a dragline pin with a bar. EE continued to work and had it evaluated by a specialist on 09/19/2022, finding multiple injuries from various incidents. EE elected to have surgery on 11/17/2022 and began missing time.

Team member suffered heart attack as they were coming in to work, Team member had not yet started their shift and was walking to the office when they collapsed.