Brunskill v Sovereign Marine & General Insurance Co Ltd

Brunskill v Sovereign Marine & General Insurance Co Ltd concerned a dispute between the appellant, Ms Brunskill, and the respondent insurer, Sovereign Marine & General Insurance Co Ltd. Ms Brunskill sought to recover under a policy of insurance for loss and damage to her vessel, the 'Sea Serpent', which had sunk. The insurer denied liability, alleging that the loss was caused by the unseaworthiness of the vessel, which had been exacerbated by the appellant's own actions. The case was heard by the High Court of Australia.

The High Court was required to determine whether the insurer was liable under the policy, notwithstanding the unseaworthiness of the vessel. Specifically, the court had to consider the effect of the warranty of seaworthiness implied in a marine insurance policy and whether the appellant's conduct in relation to the vessel's condition amounted to a breach of that warranty, thereby vitiating the policy. The court also had to consider the extent to which the insurer's knowledge of the vessel's condition, or its conduct in relation to the policy, might affect its right to rely on the warranty.

The High Court held that the warranty of seaworthiness implied in a marine insurance policy is a strict one, meaning that the insured must ensure the vessel is seaworthy at the commencement of the voyage. The court found that the 'Sea Serpent' was not seaworthy at the time of the loss, and that this unseaworthiness was a direct cause of the sinking. The court further held that Ms Brunskill had failed to establish that the insurer had waived the warranty or was estopped from relying on it. Consequently, the insurer was not liable under the policy.