# IGNITION OR EXPLOSION OF GAS OR DUST
> MSHA accident `220031400029` · 05/14/2003 · Mountain Coal Company, L.L.C.
## 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:** Arch Resources Inc
- **Operator:** Mountain Coal Company, L.L.C.
- **Mine:** [0503672](https://api.ai-analytics.org/mine/0503672)
## Narrative

ROOF BOLTER OPERATOR WAS INSTALLING A DYWIDAG ROOF BOLT APPROXIMATELY 15 FEET OUTBY THE FACE, ENTRY 2, XC 20-21, 22 HEADGATE. WHILE SPINNING THE BOLT, THE WRENCH CAME IN CONTACT WITH THE METAL MAT, CAUSING FRICTION THAT IGNITED METHANE. WATER AND A FIRE EXTINGUISHER WERE USED TO COOL AND EXTINGUISH THE FLAME.

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