Senator Chris Evans: The Minister for Defence has provided the following answer to the honourable senator's question: The following submarines were undergoing maintenance/refit programs over the period 1 January to 30 June 2011: (i) HMAS Collins – was conducting Certification Extension Docking maintenance throughout. (ii) HMAS Farncomb – conducted Intermediate Docking maintenance and unscheduled maintenance until late June 2011. (iii) HMAS Dechaineux – conducted 11 weeks of scheduled and unscheduled maintenance during its operating cycle. (iv) HMAS Sheean – was in Full Cycle Docking throughout. (v) HMAS Rankin – was in Full Cycle Docking throughout.