# Third or fourth degree heat (thermal) burns at PLUG POWER INC
> OSHA SIR `2023010589` · 1/18/2023 · PAULS VALLEY, OKLAHOMA
## Severity
- **1 hospitalization**
- **Body part:** Forearm(s)
- **Nature of injury:** Third or fourth degree heat (thermal) burns
## Cause
- **Event:** Ignition of vapors, gases, or liquids
- **Source:** Hydrogen
## Employer
- **Name:** PLUG POWER INC
- **Location:** Wal Mart Distribution Center, PAULS VALLEY, OKLAHOMA, 73075
- **NAICS:** 335999
- **Jurisdiction:** 1
## Narrative

Employees were replacing a check valve at the hydrogen pad. An employee was using wrenches to undo a fitting on a stainless steel line that carries hydrogen gas when hydrogen gas released and something caused a flash fire. The employee sustained second-and third-degree burns to their forearms.

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