HMAS WARREGO, (survey ship), surveyed the approaches, and buoyed the channels, for the Australian landing on Balikpapan.
The Naval Post Office at HMAS PENGUIN was opened. This post office had the distinction, at the time, of being staffed solely by women. The Commanding Officer of PENGUIN, CAPT H. L. Howden, RAN, had the honour of posting the first letter from the post office. This letter was addressed to Senator Cameron, who was then the Postmaster General.