Marine Construction Management has advised that, at the time of the accident, the company had a system in place whereby it verified that the appropriate safety meetings, safety drills, emergency procedures, risk assessments, crew familiarizations and other aspects of the safety management system (SMS) were being followed, recorded and submitted. Prior to this accident, a review of this verification process was conducted and the results of the review were forwarded to Calliope’s master on 25 January 2013.
Since the accident, Calliope’s master has been submitting passage plans to Marine Construction Management. The company will also issue an addendum to the vessel's SMS that will require passage plans for every voyage regardless of duration. A written procedure for transiting bridge openings will be written and implemented as part of the ongoing development of the SMS. The company has also engaged the services of a specialist consultant to conduct on board audits of the implementation and continuing use and development of the SMS.
The ATSB considers that the actions taken and proposed by Marine Construction Management should address this safety issue with respect to Calliope.