# DISORDERS (REPEATED TRAUMA)
> MSHA accident `220051380002` · 05/11/2005 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** OCCUPATNAL ILLNESS NOT DEG 1-6
- **Classification:** DISORDERS (REPEATED TRAUMA)
- **Accident type:** NEC
- **Occupation:** Drill operator
- **Activity:** Unknown
- **Injury source:** NOISE,NEC
- **Nature of injury:** HEARING LOSS OR IMPAIRMNT
- **Body part:** EAR(S) INTERNAL & HEARING
- **Days lost:** 0
- **Mine experience:** 7.79 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [4400072](https://api.ai-analytics.org/mine/4400072)
## Narrative

Individual experienced a STS shift in audiogram over 25dB on left ear only, and only at the 4000 level.

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