NTF11609 – Incident details

Written by Claude Haiku 4.5 from the extracted text on 10 Jul 2026. It can miss or misread redacted and scanned pages. Check the source before relying on it.

Woodside Energy Global notified NOPSEMA of a dangerous occurrence at its Pyrenees offshore facility in Western Australia on 1 July 2022, involving a failed level switch on the main pressure-vacuum (PV) breaker during routine function testing on 30 June 2022. The switch, designed to prevent inert gas venting, did not operate initially but functioned correctly in subsequent tests. NOPSEMA escalated the incident to level 1 inspection on 5 July 2022. The immediate cause remained unknown pending inspection and cleaning of the switch, with suspected causes including exceeded service life, float degradation from prolonged fixed positioning, or magnet degradation. Woodside's initial report was received on 4 July and reviewed on 11 July. No gas or liquid releases were reported, and no site disturbance permission was required.