Thunder Basin Coal Company LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Travelways at surface installations.
Black Thunder · 480097730 CFR 77.205(a) · $151.00 proposed penalty
Identification of circuit breakers.
Black Thunder · 480097730 CFR 77.904 · $245.00 proposed penalty
Regular Safety and Health Inspection
Black Thunder · 4800977278.0 on-site hours reported
Examination and maintenance of firefighting equipment.
Black Thunder · 480097730 CFR 77.1110 · $313.00 proposed penalty
Slip or fall of person
Black Thunder · 4800977No dys awy frm wrk,no rstr act
Accident narrative
A driver was stepping off truck step onto the lowboy when EE misplaced EE's footing, causing a small fall to the ground. Employee landed on EE's shoulders and struck back EE's head on the ground causing a small laceration on the back of the head, requiring one staple to repair laceration.
Handtools (nonpowered)
Black Thunder · 4800977No dys awy frm wrk,no rstr act
Accident narrative
While securing a load to the bed of a service truck with a ratchet strap the anchor point failed. the buckle from the strap struck the employee in the mouth damaging three teeth.
Examination and maintenance of firefighting equipment.
Black Thunder · 480097730 CFR 77.1110 · $151.00 proposed penalty
Examination and maintenance of firefighting equipment.
Black Thunder · 480097730 CFR 77.1110 · $151.00 proposed penalty
Protective clothing; requirements.
Black Thunder · 480097730 CFR 77.1710(g) · Significant and substantial (S&S) · $209.00 proposed penalty
Accumulations of combustible materials.
Black Thunder · 480097730 CFR 77.1104 · $366.00 proposed penalty
Handling of materials
Black Thunder · 4800977Days away from work only
Accident narrative
Employee needed to get a strap under a RAX link pin, so they could lift it up into place. They tried to lift one end of the pin to slide the strap under it. When employee lifted on the pin employee tore bicep and tendon.
Loading and haulage equipment; inspection and maintenance.
Black Thunder · 480097730 CFR 77.1606(c) · $151.00 proposed penalty
Loading and haulage equipment; inspection and maintenance.
Black Thunder · 480097730 CFR 77.1606(c) · $151.00 proposed penalty
Loading and haulage equipment; inspection and maintenance.
Black Thunder · 480097730 CFR 77.1606(c) · $151.00 proposed penalty
Identification of circuit breakers.
Black Thunder · 480097730 CFR 77.904 · $193.00 proposed penalty
Accumulations of combustible materials.
Black Thunder · 480097730 CFR 77.1104 · $366.00 proposed penalty
Mechanical equipment guards.
Black Thunder · 480097730 CFR 77.400(d) · $288.00 proposed penalty
Electric equipment; examination, testing, and maintenance.
Black Thunder · 480097730 CFR 77.502 · Significant and substantial (S&S) · $398.00 proposed penalty
Protection of trailing cables.
Black Thunder · 480097730 CFR 77.604 · $193.00 proposed penalty
Electric wiring and equipment; installation and maintenance.
Black Thunder · 480097730 CFR 77.516 · Significant and substantial (S&S) · $1,431.00 proposed penalty
Electric equipment; examination, testing, and maintenance.
Black Thunder · 480097730 CFR 77.502 · $151.00 proposed penalty
Electric equipment; examination, testing, and maintenance.
Black Thunder · 480097730 CFR 77.502 · $151.00 proposed penalty
Electric equipment; examination, testing, and maintenance.
Black Thunder · 480097730 CFR 77.502 · $151.00 proposed penalty
Inspection and cover plates.
Black Thunder · 480097730 CFR 77.512 · $288.00 proposed penalty
Electric equipment; examination, testing, and maintenance.
Black Thunder · 480097730 CFR 77.502 · $151.00 proposed penalty
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.