# MACHINERY
> MSHA accident `220181220023` · 04/23/2018 · Trans Alta Centralia Mining LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** MOUTH/LIP/TEETH/TONGUE/THROAT/TASTE
- **Days lost:** 0
- **Mine experience:** 3 years
## Operator
- **Controller:** Trans Alta Corp
- **Operator:** Trans Alta Centralia Mining LLC
- **Mine:** [4500416](https://api.ai-analytics.org/mine/4500416)
## Narrative

Mechanic was installing belly pan on a D-10 dozer.  While installing a bolt using an impact wrench, resistance was felt before bolt was seated so the bolt was backed out.  When mechanic lowered wrench the bolt dropped down and hit EE's lip causing a split on the inside.  One stitch was required as a result of the incident.

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