# MACHINERY
> MSHA accident `220052070029` · 07/22/2005 · Martin Marietta Materials Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 0.44 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials Inc
- **Mine:** [3100050](https://api.ai-analytics.org/mine/3100050)
## Narrative

EMPLOYEE WAS TAKING JAM NUT LOOSE ON BOLT THAT HOLDS JAM BREAKER TO STRUCTURE WITH A 1"" DRIVE AIR WRENCH. THE JAM NUT CAME LOOSE CAUSING THE NUT TO TRAVEL UP THE BOLT. HIS RIGHT THUMB WAS PINNED BETWEEN PART OF THE TELEDYNE AND THE AIR WRENCH. HE HAD TO REVERSE WRENCH TO GET HIS FINGER BACK OUT

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