NTF11911 – 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 notified NOPSEMA on 5 December 2022 of a dangerous occurrence at the CWLH OKHA FPSO involving a level transmitter on the test separator that failed performance testing. During routine six-monthly calibration testing on 4 December 2022, the transmitter deviated more than 2% from the performance standard, constituting a non-conformance against facility specification F06.1. Woodside recalibrated the transmitter to restore compliance and reported no increase to baseline risk. NOPSEMA escalated the notification to level 1 investigation on 5 December 2022, with Woodside's initial incident report received and reviewed on 7-8 December 2022. The immediate causes were to be determined through Woodside's internal investigation procedures.