Air Faith was commissioned on 8 February 1945 in Sydney under the command of Lieutenant William Brown, RANVR, and officially listed as a tender to HMAS Rushcutter, and later to HMAS Madang. Its first few weeks of commission were spent at Garden Island in Sydney preparing for sea and conducting trials before proceeding north bound for Madang, New Guinea, where it arrived on 11 September.
Air Faith remained on standby for search and rescue duties in New Guinea waters and on occasion came to the assistance of other boats and small water craft in distress. On 3 April 1946 it began passage back to Australia departing Langemak under tow from HMAS Wilcannia in tandem with HMAS Air Guide, though part of the passage between Langemak and Port Moresby was conducted under its own power as foul weather made continuing the tow untenable. It arrived in Sydney in May and decommissioned on 29 August 1946. It was transferred to the RAAF in 1949. It was returned to the RAN in 1965 though did not recommission, and was sold on 3 July 1968.
