# HANDTOOLS (NONPOWERED)
> MSHA accident `220232630002` · 09/19/2023 · Quikrete Construction Materials, LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** WRIST
- **Days lost:** 0
- **Mine experience:** 18.96 years
## Operator
- **Controller:** Summit Materials LLC
- **Operator:** Quikrete Construction Materials, LLC
- **Mine:** [4600007](https://api.ai-analytics.org/mine/4600007)
## Narrative

Maintenance was working on the bypass fan to remove the cap on the bearing. A maintenance technician began to hit the top of the cap with a hammer to loosen it up. The cap popped off the bearing and flew up hitting another maintenance technician in the left wrist as EE used EE's left arm to block EE's face.

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