Yesterday, the Chemical Safety Board announced the publication of an investigation update for the fatal hydrogen sulfide release (discussed here and here) at PEMEX Deer Park Refinery on October 10th, 2024. The update provides an overview of the facility operation and a timeline for the incident. It also summarizes the areas that the investigators are continuing to look at, including:
• Permit-to-work
practices
• Energy isolation
procedures
• Contractor
management systems
• Emergency
preparedness and response systems
• Emergency
communication practices
• Hazard analyses
and risk assessments
• Maintenance
procedures
• Training programs
• Respiratory
protection policies and procedures
• Remote isolation capability
It is interesting to note that the update indicates that the hydrogen sulfide release was due to contractors doing permitted-work opened a flange on the wrong piping.
BTW: The CSB is using a cloud platform at Box.com to release this interim report.
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