# SLIP OR FALL OF PERSON
> MSHA accident `220122280041` · 08/06/2012 · Sterling Materials
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall from machine
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Getting on or off equipment
- **Injury source:** GROUND
- **Nature of injury:** UNCLASSIFIED,NOT DETERMED
- **Body part:** KNEE/PATELLA
- **Days lost:** 63
- **Mine experience:** 9 years
## Operator
- **Controller:** Boone Trust, Samuel A.B. (Alex) Boone Trustee
- **Operator:** Sterling Materials
- **Mine:** [1518068](https://api.ai-analytics.org/mine/1518068)
## Narrative

Employee lost footing exiting the rear of the service truck while starting the air compressor mounted on the back of the truck. The employee injured left knee.

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