A man in his 50s suffered serious burn injuries and shrapnel wounds after an explosion at a residential property in Chester Hill on Monday, with emergency services responding swiftly to contain the incident and ensure no secondary dangers posed a risk to the surrounding area.
NSW Ambulance said the man in his 50s suffered injuries to his face and his legs on Grevillea Road, Chester Hill just before 12.30pm on Monday. The explosion drew multiple emergency calls reporting loud bangs and visible smoke from the area. Royal North Shore Hospital is also a major Trauma Centre which provides specialised services in the areas of severe burns, and the patient was transported there in serious but stable condition, indicating that whilst his injuries were significant, his vital signs remained stable during transport and initial assessment.
The response from Fire and Rescue NSW revealed important details about the nature of the incident. Inspection of welding equipment has identified that serious accidents could be prevented if equipment is maintained in accordance with minimum requirements, complete prestart checks of welding equipment are completed, and safety devices are securely fitted at both ends of the welding hose, including flashback arrestors at the torch handle and the gas bottle. According to 7News, early indications from authorities suggest the explosion may have been linked to a welding accident, with the gas bottle itself not exploding. This distinction matters for workplace safety. When welding occurs, pressurised gas is used; if proper precautions are not observed, gas can escape and, if ignited, cause flashback incidents where flame travels backward through the equipment.
No active fire was present when crews arrived on scene, which suggested the explosion itself had dissipated the immediate flame threat, though residual heat and hazards remained. Specialist HAZMAT firefighters conducted atmospheric testing using gas detectors and identified no ongoing gas hazards, clearing the area for investigation and confirming that the incident posed no ongoing risk to nearby residents.
No other injuries were reported from the incident. The discovery that the gas bottle was not the source of failure, but rather the circumstances surrounding welding operations, aligns with broader workplace safety data showing that many gas-related injuries occur during active use rather than from equipment malfunction alone.