On 6 September 1983, "Niagara Falls" changed homeports to Guam and became part of the forward deployed elements of CTF 73/75, part of the 7th Fleet. From that time until January 1991 the ship conducted three Refresher Training sessions, five OPPRE's, four SMI's, five ARE's, and three INSURV Inspections. She made port calls to numerous locations such as Yokosuka and Sasebo, Japan; Hong Kong; Subic Bay and Cebu, Philippines; Bali, Indonesia; Fremantle/Perth, Australia; Singapore; Muscat, Oman; Bahrain; Pattaya and Phuket, Thailand; Fujiarah, UAE; and Diego Garcia. A number of these locations were visited more than once. "Niagara Falls" participated in numerous Fleet Support Operations including repeated Masirah Airheads, Operation Team Spirit and PACEX-89.