Complex sentence: She stayed near New Guinea until 14 February 1945 at which point she returned to America and decommissioned 27 September 1946, and transferred to the Maritime Commission for disposal 24 December 1946.
Split into simpler sentences: She stayed near New Guinea until 14 February 1945, at which point she returned to America. The ship was decommissioned 27 September 1946, and transferred to the Maritime Commission for disposal 24 December 1946.