# OTHER
> MSHA accident `220181550011` · 05/30/2018 · Mountain Materials, Inc.
## Details
- **Degree of injury:** ALL OTHER CASES (INCL 1ST AID)
- **Classification:** OTHER
- **Accident type:** NEC
- **Occupation:** Prep plant foreman, Supervisor, Mill plant supervisor, Kiln supervisor
- **Activity:** Supervise
- **Injury source:** NOISE,NEC
- **Nature of injury:** HEARING LOSS OR IMPAIRMNT
- **Body part:** EAR(S) INTERNAL & HEARING
- **Days lost:** 0
- **Mine experience:** 25 years
## Operator
- **Controller:** CRH PLC
- **Operator:** Mountain Materials, Inc.
- **Mine:** [4400164](https://api.ai-analytics.org/mine/4400164)
## Narrative

It was a yearly Comprehensive Hearing Test, which shows a Recordable Standard Threshold Shift of 25 dB or more at 2000Hz in the left ear. *Retested and no threshold shift of 25 dB found.

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