Aratere crew not fully trained in new steering system before grounding

Investigators have found the Aratere's crew were not fully trained in a new steering system before the Interislander ferry ran aground.

The grounding prompted a significant response and disruption to Cook Strait sailings, and attention quickly turned to how an experienced crew lost control of the vessel.

The findings point to a gap between the installation of new technology and the training programme intended to support it, with familiarisation not completed before the system was in active use.

Operators face a recurring problem here: upgrades intended to improve safety introduce their own risks during the transition period if procedures and drills lag behind the hardware.

Recommendations focus on training sign-off before new systems go live, and on clearer fallback procedures when automation behaves unexpectedly.