Allegheny Metallurgical, LLCMining Incidents in 2024

An unplanned fall of the mine roof above the anchorage zone occurred at 4 block on the mine bottom, 3-4 crosscut measuring approximately 10' high x 30' long x 17' wide.

Faults involving the limit switches on the mine personnel hoist resulted in the hoist being down for a period of time greater than 30 minutes. No miners were entrapped and no injuries resulted.

An unplanned fall of the mine roof above the anchorage zone occurred outby on the First Northeast Mains between 30 and 31 block in the #5 entry.

During the daily inspection of the vertical personnel hoist, broken strands were discovered on the wire rope. The hoist was removed from service by the operator.

An unplanned fall of the mine roof above the anchorage horizon occurred outby on the #2 Headgate section at 5 block in the #4 entry. The fall was approximately 14' high x 18' wide x 20' long.

A heating event occurred involving the Strata foam that was pumped above a set of steel set arches to fill a roof fall void from 47 to 49 block in the #1 entry of the #1 HG Longwall section.

An inundation of carbon monoxide occurred on 6/28/24 at the void fill area from 47 to 49 crosscut on the HG #1 Longwall section.

The vertical hoist servicing the underground mine was down for more than 30 minutes due to a faulty solenoid.

An unplanned fall of the mine roof occurred at 48 block on the #1 HG Longwall section in the #1 entry.

An ignition occurred on the #1 HG longwall face at 88 shield.

An unplanned fall of the mine roof occurred at 68 block, #1 entry of the #1 Tailgate section.

An unintentional roof fall occurred on the #1 HG Longwall section between 55 and 56 block in the #1 entry.

A face ignition occurred on the #1 HG Longwall face at #163 shield.

An unplanned fall of the mine roof above the anchorage zone occurred in the #3 entry intake air course at 48 block on the #1 HG Longwall section.

An unplanned fall of the mine roof preventing passage occurred at 58 block of the belt entry of the HG #1 longwall.

An unplanned roof fall that impeded passage occurred at 48 block in the #1 entry of the HG #1 section.

Injured employee tripped and fell while walking de-icing rollers along the Met #3 conveyor belt.

Injured employee was helping pull continuous miner cable when the cable tightened and took EE's feet out from under EE, causing EE to fall and strain EE's right shoulder. Employee continued to work until 2/14/2025.

Injured employee was removing built-up material from the rollers along the slope belt when the employee sustained a fracture to right forearm.

Injured employee was assisting in moving an auxiliary fan utilizing a scoop. After loading the fan and hooking the scoop's winch rope to the fan employee stepped down from the scoop bucket a distance of approximately 1' and stepped on a rock, twisting left ankle.

Injured employee was loading trash onto a mine supply car when they slipped and struck their right elbow.

Injured employee stated that while walking on the HG #2 Section in the #2 entry between 55 and 56 block EE twisted EE's right knee. Employee continued to work until 5/24/2024 when EE was taken off work by a physician.

Injured employee was performing maintenance on the longwall shearer when a piece of rock fell from the mine roof and struck EE's left leg resulting in a fracture.

Employee was checking the sanding devices on a locomotive on the mine bottom. As they walked around the locomotive and stepped over a track rail, they twisted their right knee.

Injured employee was checking the suction on a roof bolting machine when a piece of rock fell from the roof/rib and struck left calf resulting in a laceration that required sutures to close.

Employee stated that after picking up a battery backup and a fixed mesh node for the wireless tracking/communication system employee felt a pain in left shoulder. Employee continued to work until 8/7/24 when employee was taken off work for surgery.

Injured employee was assisting in roof bolting on a roof fall clean-up project when a piece of rock fell from the mine roof, struck the roof bolting machine, then the top of EE's right foot resulting in a laceration requiring three sutures to close.

Injured employee tripped and fell while examining the slope belt resulting in a laceration to their right thumb requiring four sutures to close.

Injured employee was operating the longwall shearer when the employee was struck on the right index finger by a piece of rock resulting in a laceration requiring four sutures to close.

Employee was cleaning up spillage on the longwall face and picked up a chunk of coal to throw back into the panline and got finger caught between the panline and chunk of coal causing laceration.

Employee was putting down material to dry up a roadway. They reached down to pick up a pick hammer when a piece of rock fell out of the top striking them on the back of the head while they were bent over causing injury.