Form – Prohibition Notice 0755

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NOPSEMA issued Prohibition Notice 0755 to Upstream Production Solutions Pty Ltd regarding the Northern Endeavour – NOGA offshore facility, directing cessation of hydrocarbon production operations. The prohibition was issued following inspection 2040 due to immediate threats to health and safety caused by structural corrosion and failed structural elements. A dangerous occurrence notification in July 2019 documented a dropped object incident with sufficient height and weight to potentially cause fatality. NOPSEMA identified corrosion-related structural defects that could fail under design load conditions, risking hydrocarbon loss of containment with potential ignition leading to major injuries or multiple fatalities, or direct physical trauma injuries to personnel. Remedial actions required include depressurizing and eliminating hydrocarbon inventory on topsides and conducting comprehensive structural surveys with ALARP risk assessments using ISO standards to determine whether continued operations could safely proceed.