# MACHINERY
> MSHA accident `220030430006` · 01/23/2003 · Heidelberg Materials US Cement LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** IMPACTOR,TAMPER
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** —
- **Mine experience:** 0.09 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Heidelberg Materials US Cement LLC
- **Mine:** [1800017](https://api.morvs.ai/mine/1800017)
## Narrative

WHILE WORKING ON A STEP LADDER, THE WORKER WAS USING AN AIR IMPACT GUN OVER HIS HEAD. THE WORKER STATED THAT HE FELT A BACK MUSCLE TIGHTEN UP, HE HANDED THE TOOL TO A CO-WORKER AND STEPPED OF F THE LADDER AND COLLAPSED TO THE FLOOR.

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