Kammala jumla mai zuwa: A cikin 1956 "Fort Mandan" ya gudanar da atisayen horo na amphibious a Vieques, Puerto Rico, kuma ya sami gyare-gyare a Baltimore kafin ya sake yin tururi zuwa arewacin arewa inda ya yi tafiya a watan Satumba da Oktoba. Ayyukan amphibious sun sake mamaye shi a watan Nuwambar 1956 da kuma yawancin 1957 lokacin da ya shiga "Caribex" a cikin
Yankin Canal na Panama da "Narmid" 1 da 2. Daga watan Satumba zuwa Nuwamba 1957 an haɗa shi da MSTS don Arctic Service, yana samun nasarar jigilar sojojin soja da kayan aiki daga Greenland zuwa Newfoundland da Virginia a cikin aikin rufe hunturu.