NTF11833 – 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 Ltd reported a notifiable incident (NTF11833) at the Vincent facility in Western Australia involving failure of ballast tank and draft level monitoring systems on 5 May 2022, though notification occurred 5 months later on 25 October 2022. The malfunction occurred during a Woodside internal vessel disconnection exercise and was classified as a dangerous occurrence involving damage to safety-critical equipment. Initial investigation suggested possible pneumatic system anomalies requiring further confirmation. No loss of containment occurred. The incident was escalated to NOPSEMA level 1 investigation on 1 November 2022. Classification authority CLASS had flagged the issue as a possible performance standard failure under P22, despite Woodside's initial failure to record it as a non-compliance.