# HANDLING OF MATERIALS
> MSHA accident `220072910002` · 10/13/2007 · United States Gypsum Company
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by... NEC
- **Occupation:** Assistant mine foreman, Assistant mine manager
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** NECK
- **Days lost:** 0
- **Mine experience:** 13 years
## Operator
- **Controller:** USG Corporation
- **Operator:** United States Gypsum Company
- **Mine:** [1300434](https://api.ai-analytics.org/mine/1300434)
## Narrative

Employee was preparing a new roof bolter boom to be lowered into the mine for assembly. Boom was suspended in mine shaft and when employee was positioning the boom, the boom extension cylinder guard came loose, striking the employee on the hard hat.  Employee is diagnosed with cervical-thoracic strain.

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