# MACHINERY
> MSHA accident `220040220012` · 01/12/2004 · CalPortland Company
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Welder (shop)
- **Activity:** Hand tools (powered)
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** —
- **Mine experience:** 34.59 years
## Operator
- **Controller:** Taiheiyo Cement Corp
- **Operator:** CalPortland Company
- **Mine:** [0201138](https://api.ai-analytics.org/mine/0201138)
## Narrative

EE WAS USING AN IMPACT WRENCH TO REMOVE BOLTS. THE SOCKET IS SECURED TO THE WRENCH WITH A PIN AND O-RING TO KEEP IT IN POSITION. THE O-RING SLIPPED OFF CAUSING THE PIN TO BE EXPOSED, CAUSING A LACERATION ON THE PALM OF HIS LEFT HAND. THE LACERATION REQUIRED STITCHES AND PLACED ON MODIFIED DUTY.

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