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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 201174364 - Employee Burned From Gas Boiler Flareback

Accident: 201174364 -- Report ID: 0950621 -- Event Date: 07/29/2003
InspectionOpen DateSICEstablishment Name
12034610108/22/20030279The Jackson Laboratory

On July 29, 2003, Employee #1, a facility engineer, was troubleshooting a new gas-fired boiler to determine why it was going into alarm status and shutting down. With the help of a contractor, he removed the boiler's firebox door to determine why the pilot light was not lighting incoming gas. He pushed a button to light the boiler. The primary gas valve had a blocked vent and did not open to allow gas into the chamber. The secondary gas valve opened when its switch failed in the open position allowing gas into the chamber. As they smelled gas, the gas cloud reached the pilot light and ignited, catching Employee #1 in a flareback, burning his face, neck and arms. Employee #1 was hospitalized with second-degree burns.

Keywords: burn, work rules, boiler, fire, gas, flashback, neck, arm, face, untrained

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 120346101 Hospitalized injury Burn/Scald(Heat) Mechanical engineers

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