On 28 October 1943 "Crescent City" sortied for the invasion of Bougainville, landing troops at Empress Augusta Bay under air attack 1 November. On the 13th, after helping repel a torpedo bomber attack, she landed support troops brought from Tulagi and Port Purvis on Florida Island. Continuing her inter-Solomons transport and resupply duty, she took part in the assault landings on Emirau Island on 11 April 1944 and reported to Guadalcanal 30 April to prepare for the Marianas operation.