# IGNITION OR EXPLOSION OF GAS OR DUST
> MSHA accident `220183310012` · 11/11/2018 · CEMEX Construction Materials Pacific, 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:** Cemex S A
- **Operator:** CEMEX Construction Materials Pacific, LLC
- **Mine:** [0405701](https://api.ai-analytics.org/mine/0405701)
## Narrative

CO sensor at 50 ton coal bin quit working and unknown to the operator. The operator ran the coal bin empty in order to perform repairs at the drive sprocket for the screw. There was no ventilation in the system and the agitator was not running causing material accumulation at the bottom of the bin. Co monitor failed giving a false reading pre and post explosion. No injuries.

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