While workers were cleaning up material that was removed from a new coal transfer borehole using a continuous miner, a section of rib/brow fell from the inby portion of the entry and continued outby pulling rib bolts. The material rolled down the rib and struck the miner operator causing fatal crushing injuries to chest and abdomen.
Lone Mountain Processing LLCOperator
- Fatalities
- 7
- Total incidents
- 590
- Mines on record
- 6
- Years on record
- 2000–2017
Safety benchmark
Recorded fatalities relative to other operators with a fatal MSHA history. Percentile is computed across the 739 operators with at least one recorded fatality.
More recorded fatalities than 98% of operators on file.
Position when operators are sorted by recorded fatalities.
Industry mean: 1.6 fatalities per fatal-history operator.
- Lone Mountain Processing LLCthis operator7fatal590 total
- Thunder Basin Coal Company LLC4fatal590 total
- TXI Operations, LP1fatal589 total
- Freeman United Coal Mining Company1fatal594 total
- Carmeuse Lime and Stone, Inc.1fatal600 total
Methodology: percentile and rank computed across MSHA operators with at least one recorded fatality. Industry mean is the average across that same population. Peers are sampled by closest total-incident count, regardless of fatality outcome.
Get an email the moment a new MSHA-reportable accident lands at any mine on file under Lone Mountain Processing LLC. Useful for 105(c) defense intake, FMSHRC docket prep, and active client monitoring.
Top causes
- FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL3 fatalities · 25 non-fatal
- POWERED HAULAGE2 fatalities · 39 non-fatal
- MACHINERY1 fatality · 62 non-fatal
- ELECTRICAL1 fatality · 3 non-fatal
- FALL OF ROOF OR BACK246 non-fatal
- HANDLING OF MATERIALS93 non-fatal
Incident timeline
Mines on record
Fatalities under this operator
7 recordedWhile conducting retreat mining on 6-Left Panel off B-4 Mains, a coal/rock outburst occurred inby break #35. The outburst involved the continuous miner operator who suffered fatal blunt force injuries to his head, chest, and legs.
While directing activities to re-support ribs in an intersection, a rib roll struck a standing roof support which in turn struck the foreman in the head causing fatal injuries.
Employee was found pinned between the #4 mobile bridge unit and the section lo-lo conveyor belt structure. He was apparently troubleshooting a report of weak tramming on the left side of the mobile unit. There were no witnesses to the accident.
THE VICTIM WAS HAULING REFUSE FINES -100 MESH TO THE IMPOUNDMENT. HE WAS BACKING THE TRUCK TO THE DUMPING POINT WHEN FOR SOME REASON. HE TURNED THE TRUCK THROUGH THE BERM. THE TRUCK TURNED TO THE LEFT SIDE AND SLID DOWN THE EMBANKMENT AND CAME TO REST ON IT'S LEFT SIDE, SUBMERGING THE CAB INTO THE IMPOUNDMENT MATERIALS.
EMPLOYEE WAS WORKING ON A POWER DISTRIBUTION BOXTO DETERMINE WHY A CIRCUIT BREAKER WOULD NOT OPERATE. HE APPARENTLY CAME IN CONTACT WITH AN ENERGIZED CIRCUIT DURING THE TROUBLE SHOOTING PROCES S.
EMPLOYEE WAS FOUND LAYING ON THE MINE FLOOR, APPROXIMATELY 25'INBY SPAD #15181 IN THE #4 ENTRY ON THE 3 RIGHT PANEL, 001 RETREAT MINING SECTION. HE HAD APPARENTLY BEEN RAN OVER BY A BATTERY POWERED COAL HAULER.