Complex sentence: The Canadian Coast Guard has a single SR.N6 in active service, commissioned as "CG 045", the second ACV operated by the CCG was decommissioned for use as a spare part source for "CG 045" in late 1998.
Split into simpler sentences: The Canadian Coast Guard has a single SR.N6 in active service. Commissioned as "CG 045", the second ACV operated by the CCG was decommissioned for use as a spare part source for "CG 045" in late 1998.