In September 2012 Defence provided an update on the circumstances surrounding the defect which occurred on one of the propulsion transformers in HMAS Choules in June 2012.
This updates that advice.
The replacement of the propulsion transformers related to the initial defect has now occurred.
As detailed in previous advice, all remaining transformers have now also been inspected and similar signs of premature ageing have been identified. This ageing is within operational limitations and at varying levels.
Following consultation with the transformer manufacturer, the Defence Materiel Organisation, the Defence Science and Technology Organisation, Lloyds Classification Society and the UK Ministry of Defence, the Chief of Navy has made the decision to replace the remaining four transformers on the Choules before the ship returns to sea.
The total cost of the replacement is expected to be in the order of $10 million. The replacement transformers are currently under construction. HMAS Choules is scheduled to return to work by April 2013.
HMAS Tobruk and Australian Defence Vessel Ocean Shield will provide any humanitarian assistance or disaster relief response required by Government over that period.
