Accident type, without injuries
Smoke was discovered in the 5 1/2 West coal pit at the top of the coal face. The smoke could not be extinguished in 30 minutes. No miners or mining equipment were at risk during this event.
Thunder Basin Coal Company LLCMining Incidents in 2020
All MSHA-reportable accidents at Thunder Basin Coal Company LLC operations in 2020. Fatalities appear first.
- Fatalities in 2020
- 0
- Total incidents
- 7
- Year
- 2020
Top incident classifications
- 01SLIP OR FALL OF PERSON2 incidents
- 02FIRE1 incident
- 03HANDLING OF MATERIALS1 incident
- 04MACHINERY1 incident
- 05HANDTOOLS (NONPOWERED)1 incident
All incidents in 2020
Fall from machine
The equipment operator tore the quadriceps muscle and patellar tendon on EE's right knee when EE missed a ladder rung dismounting the equipment. Surgery was required to repair the torn tissues.
Fall down stairs
Employee reports EE was carrying a sample of approximately 50lbs down the stairs. EE's foot missed a step and EE fell forward.
Over-exertion in lifting objects
Employee reports they were dumping approximately 30 lbs of coal on a pile with a twisting motion. Employee then felt pain. Employee informed management on 10-16-2020. Letter attached to original form for further information.
Struck by flying object
Socket detached from air wrench and struck i.e. on RT cheek causing a laceration.
Struck against stationary object
IE was tapping on a rear strut with a hammer when EE's hand contacted a pulling rod that was in the strut pin causing a laceration to EE's left middle finger that required 5 sutures to close.
(Not Elsewhere Classified)
The delivery driver was found unresponsive laying on the ground near the cab of the truck. CPR and an AED were administered by mine rescue personnel. The victim was immediately transported by ambulance and turned over to local EMS crew. This is a non-chargeable medical event.