ɪts fˈɜːst ˌɑːpɚɹˈeɪʃənəl mˈɪʃən kˈeɪm ˌɔn tˈɛn sɛptˈɛmbɚ wɛn ɪts ˈɛɹkɹæft ˌʌndɚtˈʊk ɐ sˈɜːtʃ fɚɹə sˈʌbmɚɹˌiːn ðæt hɐdbɪn ɹᵻpˈoːɹɾᵻd ˈɔf sˈɪdni.
Its first operational mission came on 10 September when its aircraft undertook a search for a submarine that had been reported off Sydney.