# SLIP OR FALL OF PERSON
> MSHA accident `220102950026` · 07/14/2010 · Martin Marietta Northern California Aggregates LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator
- **Activity:** Getting on or off equipment
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 12
- **Mine experience:** 6.15 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Martin Marietta Northern California Aggregates LLC
- **Mine:** [0405261](https://api.ai-analytics.org/mine/0405261)
## Narrative

The employee was dismounting a CAT 980F front end loader on level ground with engine off and parking break set. It was daylight the weather clear dry. While turning to face the ladder to dismount the employee twisted his right knee. The injury was diagnosed as a mild sprain. The injury became a time lost accident on 10/8/10 when surgery was required for a torn meniscus.

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