 The ship arrived on 31 May and was taken into the Captain Cook Dock at the Garden Island Dockyard for repairs, with the dock's labour force being augmented with workers from the Cockatoo Island Dockyard. Two of the three armour plates damaged on 4 May were repaired, but the third had to be replaced by two 1.5-inch high-quality steel plates as there were not any armour plates of the required thickness available in Australia. Repairs were also made to the ship's machinery, boilers and electrical systems. The island was enlarged with an admiral's staff cabin and a radar workshop. Rear-Admiral Sir Philip Vian, commander of the 1st ACS, transferred his flag to Formidable when her repairs were complete.
