Complex sentence: After shakedown in Chesapeake Bay, "LST-975" departed New York on 27 March 1945 for the Pacific, via the Panama Canal, arriving Pearl Harbor, Hawaii, on 1 May for amphibious warfare exercises in the Maui area.
Split into simpler sentences: After shakedown in Chesapeake Bay, "LST-975" departed New York, on 27 March 1945, for the Pacific, via the Panama Canal. She arrived in Pearl Harbor, Hawaii, on 1 May, for amphibious warfare exercises in the Maui area.