# HANDTOOLS (NONPOWERED)
> MSHA accident `220092300036` · 08/13/2009 · Martin Marietta Materials Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck against stationary object
- **Occupation:** Quality control technician, Laboratory technician, Laboratory assistant
- **Activity:** Hand tools (not powered)
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FOREARM/ULNAR/RADIUS
- **Days lost:** 0
- **Mine experience:** 15 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials Inc
- **Mine:** [3102120](https://api.ai-analytics.org/mine/3102120)
## Narrative

Equipment technician was pulling on a wrench to loosen a hydraulic pump retaining nut. The wrench slipped off the retaining nut. His left arm slipped forward causing his left forearm to contact a sheet metal guard edge. The sharp corner of the guard caused a laceration to the left forearm.

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