# HANDLING OF MATERIALS
> MSHA accident `220113140023` · 11/03/2011 · Chevron Mining Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by... NEC
- **Occupation:** Master electrician
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** UNCLASSIFIED,NOT DETERMED
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 162
- **Mine experience:** 33.42 years
## Operator
- **Controller:** Chevron Corporation
- **Operator:** Chevron Mining Inc
- **Mine:** [2900096](https://api.ai-analytics.org/mine/2900096)
## Narrative

The gear puller was attached & pressure was applied, when employee used a crescent wrench to hold the shaft from turning as the pressure was applied. One of the gear puller arm broken & puller sprung away from the pinion gear with force, causing the force pulled on the arm or struck left shoulder.

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