# Soreness, pain, hurt-nonspecified injury at Carrier Commercial Services
> OSHA SIR `2021054335` · 5/27/2021 · HOUSTON, TEXAS
## Severity
- **1 hospitalization**
- **Body part:** Wrist(s)
- **Nature of injury:** Soreness, pain, hurt-nonspecified injury
## Cause
- **Event:** Explosion of pressure vessel, piping, or tire
- **Source:** Cooling and humidifying machinery and appliances, n.e.c.
## Employer
- **Name:** Carrier Commercial Services
- **Location:** 1111 Fannin St, HOUSTON, TEXAS, 77002
- **NAICS:** 485999
- **Jurisdiction:** 1
## Narrative

Two technicians were changing out a compressor on an HVAC chiller. While preparing the chiller for a pump down, the compressor was over pressurized and the copper drain lines burst. As one technician approached the chiller, a piece of the copper drain line hit the technician on the left wrist. The employee was hospitalized.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*