Following the accident, DOF management submitted a ‘safety flash’ to the offshore industry organisation, International Marine Contractors Association. The safety flash summarised key safety matters and the accident, allowing wider dissemination of lessons learned to the industry. The company also undertook to review and update the cargo securing procedure and risk assessment to include the requirement for a lashing plan and load sequence planning with rig prior to entry of 500 m zone.
Subsequently, DOF Management advised the ATSB that its existing cargo loading procedure and risk assessment had been revised to include further clarification surrounding cargo lashing and hazards of shifting cargo. The revised procedure contains trigger points for assessing further operation when there is:
- water on deck over the stern
- an unexpected deterioration in weather
- an unfavourable change of the vessel position/heading.
Additionally, when offloading and backloading cargo alongside offshore installations, the risk assessment for securing cargo is to be reviewed and updated to ensure all hazards of shifting cargo are identified and addressed.
Further, a simultaneous operations (SIMOPS) procedure for combined rig and vessel cargo loading operations has been developed and implemented. The SIMOPS procedure is in addition to the procedures for working in adverse weather and cargo loading.