 In 2010, allegations were made to "The Australian" that a sailor working in the austere compartment on a different vessel had been gassed with hydrogen sulphide, and carbon monoxide was regularly detected in the enclosed space.Following publication of the allegations, Chief of Navy Russ Crane claimed that there was no record of the alleged gassing incident, and while there were ongoing incidents of poisonous gasses detected in the compartment, the sensors were set to trigger well below dangerous levels, and modifications were being made to the sewerage and ventilation systems.In 2014, the navy reported the recurrence of hull cracking around the engine spaces, which has been attributed to a combination of design issues related to the aluminium hull, and the high tempo of operations.