CANYON FUEL COMPANY LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Protection of high-voltage circuits; neutral grounding resistors; disconnecting devices.
SKYLINE MINE #3 · 420156630 CFR 77.802 · $226.00 proposed penalty
Identification of circuit breakers.
SKYLINE MINE #3 · 420156630 CFR 77.904 · $226.00 proposed penalty
Inspection and cover plates.
SKYLINE MINE #3 · 420156630 CFR 77.512 · $226.00 proposed penalty
Mechanical equipment guards.
SUFCO · 420008930 CFR 75.1722(a) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Accumulation of combustible materials.
SUFCO · 420008930 CFR 75.400 · $1,431.00 proposed penalty
Maintenance of diesel-powered equipment.
SKYLINE MINE #3 · 420156630 CFR 75.1914(a) · $226.00 proposed penalty
Machinery and equipment; operation and maintenance.
SKYLINE MINE #3 · 420156630 CFR 75.1725(a) · $313.00 proposed penalty
Accumulation of combustible materials.
SKYLINE MINE #3 · 420156630 CFR 75.400 · $504.00 proposed penalty
Accumulation of combustible materials.
SKYLINE MINE #3 · 420156630 CFR 75.400 · $226.00 proposed penalty
Ventilation controls.
SKYLINE MINE #3 · 420156630 CFR 75.333(h) · $366.00 proposed penalty
Nonpermissible diesel-powered equipment; design and performance requirements.
SUFCO · 420008930 CFR 75.1909(d) · $267.00 proposed penalty
Nonpermissible diesel-powered equipment; design and performance requirements.
SUFCO · 420008930 CFR 75.1909(d) · $267.00 proposed penalty
Nonpermissible diesel-powered equipment; design and performance requirements.
SUFCO · 420008930 CFR 75.1909(d) · $267.00 proposed penalty
Mine ventilation plan; submission and approval.
SUFCO · 420008930 CFR 75.370(a)(1) · $288.00 proposed penalty
Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.
SUFCO · 420008930 CFR 50.20(a) · $151.00 proposed penalty
Electric equipment; examination, testing, and maintenance.
SKYLINE MINE #3 · 420156630 CFR 77.502 · $151.00 proposed penalty
Preshift examination at fixed intervals.
SKYLINE MINE #3 · 420156630 CFR 75.360(g) · $151.00 proposed penalty
Identification of circuit breakers and disconnecting switches.
SKYLINE MINE #3 · 420156630 CFR 77.809 · Significant and substantial (S&S) · $3,736.00 proposed penalty
Ventilation controls.
SUFCO · 420008930 CFR 75.333(h) · $313.00 proposed penalty
Handling of materials
SKYLINE MINE #3 · 4201566No dys awy frm wrk,no rstr act
Accident narrative
The employee was standing on the roof bolter. While moving the hung miner cable by hand, they lost balance falling backwards hitting the drill mast, resulting in a 1-inch laceration on the right side of their neck.
Non-Injury Accident Investigation
SKYLINE MINE #3 · 420156617.5 on-site hours reported
Protection from falls of roof, face and ribs.
SKYLINE MINE #3 · 420156630 CFR 75.202(a) · Significant and substantial (S&S) · $3,736.00 proposed penalty
Violation — cited standard not reported
SKYLINE MINE #3 · 4201566Identification check system.
SUFCO · 420008930 CFR 75.1715 · $151.00 proposed penalty
Fall of roof or back
SKYLINE MINE #3 · 4201566Accident only
Accident narrative
On 08/30/2025 at 14:15 pm a roof fall was discovered in the intersection of crosscut 17 #2 entry in 12 right tailgate. It was determined at that time the roof fall was above the anchor point for the primary roof support. The Msha Hotline was notified of the roof fall at 14:22 pm 08/30/2025
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.