# HANDLING OF MATERIALS
> MSHA accident `220122340029` · 08/15/2012 · Mountain Cement Company LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 0
- **Mine experience:** 6.85 years
## Operator
- **Controller:** Eagle Materials Inc
- **Operator:** Mountain Cement Company LLC
- **Mine:** [4800007](https://api.ai-analytics.org/mine/4800007)
## Narrative

Mechanic ee was working in the raw mill on the number four roller hydraulic cylinder.  EE was loosening bolts to remove the top cap of the cylinder so he could replace the inner seal.  As ee loosened the last bolt the cap flew upward, shoving ee left hand into the upper cylinder coupling which caused a laceration on his left palm

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