# IGNITION OR EXPLOSION OF GAS OR DUST
> MSHA accident `220022530004` · 08/11/2002 · Westmoreland San Juan Mining LLC
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** IGNITION OR EXPLOSION OF GAS OR DUST
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** BHP Billiton
- **Operator:** Westmoreland San Juan Mining LLC
- **Mine:** [2902170](https://api.ai-analytics.org/mine/2902170)
## Narrative

A ROOF BOLTER OPERATOR WAS MIXING RESIN DURING INSTALLATION OF A ROOF BOLT. AS HE SPUN THE BOLT, THE HEAD WAS PUSHED AGAINST THE PLATE HARD ENOUGH TO PRODUCE SPARKS. AS THE SPARKS HIT THE ROOF A BLUE FLAME WAS OBSERVED BY THE OPERATOR. THE FLAME SELF-EXTINGUISHED. MANAGEMENT DID NOT LEARN OF THIS INCIDENT UNTIL 8/27/02.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*