# MACHINERY
> MSHA accident `220072470041` · 08/25/2007 · West Valley Sand & Gravel Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Drill helper
- **Activity:** Surface equipment, NEC
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 0
- **Mine experience:** 0.04 years
## Operator
- **Controller:** Cemex S A
- **Operator:** West Valley Sand & Gravel Inc
- **Mine:** [0202753](https://api.ai-analytics.org/mine/0202753)
## Narrative

Two EEs were making a connection. One pulled the Kelly up while the other set the slip in the table. The joint was set lower than usual. The two tongs were installed. The driller engaged the break-out tong 2-3 times unsucessfully. They decided to use the make-up tong to break the joint. When he engaged the clutch the tong came around the derrick leg and broke victim's hand.

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