# MACHINERY
> MSHA accident `220221870035` · 07/01/2022 · Engineering Aggregates Corp
## 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:** Prep plant foreman, Supervisor, Mill plant supervisor, Kiln supervisor
- **Activity:** Inspect equipment or mine
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 31.85 years
## Operator
- **Controller:** Engineering Aggregates Corp
- **Operator:** Engineering Aggregates Corp
- **Mine:** [1200840](https://api.ai-analytics.org/mine/1200840)
## Narrative

A valve for the lid lift sys. on a ISC 77 crusher stuck in the open position letting the pressure off the hydraulics. This allowed the lid to descend. Employee didn't install the safety pin in the lift system to prevent this before doing maintenance. As they moved the lid over for inspection, it descended unnoticed and pinched EE's finger between the lid and a hold down loop.

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