Complex sentence: After seven months in Asian waters, "Santa Barbara" entered Pearl Harbor on 5 February 1973; then, proceeded on to Quonset Point, Rhode Island, via the Panama Canal, arriving on the 22nd.
Split into simpler sentences: After seven months in Asian waters, the "Santa Barbara" entered Pearl Harbor, Hawaii, on 5 February 1973. Next, she proceeded to Quonset Point, Rhode Island, via the Panama Canal, arriving on the 22nd.