What happened

A fixed carbon-dioxide firefighting system was activated incorrectly while four maintenance workers were inside P-19's auxiliary diesel-generator room. Two escaped and two were rescued; one later died. ANP found design, inspection, risk-assessment, warning and training failures. The operating platform stopped all production the next day and subsequently entered decommissioning; the regulator does not present the fatal discharge as the sole reason for permanent decommissioning.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.