# HANDTOOLS (NONPOWERED)
> MSHA accident `220120230013` · 01/09/2012 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion in wielding or throwing objects
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (not powered)
- **Injury source:** AXE,HAMMER,SLEDGE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 30 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [3300156](https://api.ai-analytics.org/mine/3300156)
## Narrative

Repairman was working with 2 co-workers replacing a broken elevator chain pin on top of the elevator. At approx. 3PM he felt a pain in his mid back area while swinging a sledgehammer to drive a new pin into position. Continued working through the remaining week until recurring soreness required medical attention on 1/17/12 and restricted duty temporarily until is complete.

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