USS Columbus completed a Post Shipyard Availability in June 1994 in Groton, Conn., after initial constructoin and shakedown operations. In September 1994, the ship conducted an interfleet transfer to Pearl Harbor, Hawaii, and joined the U.S. Pacific Fleet Submarine Force. The fast-attack submarine deployed to the Western Pacific in late 1995 through early 1996 and conducted a variety of operations as a unit of the U.S. Seventh Fleet.

April 9, 1999 USS Columbus returned to homeport after a scheduled western Pacific deployment.

September 6, 2002 Cmdr. Michael B. Ryan relieved Cmdr. Norman B. Moore as commanding officer of USS Colombus. During Moore’s tenure, the submarine deployed twice to western Pacific, serving in the U.S. 7th Fleet. During these deployments, SSN 762 successfully completed several missions vital to national security and demonstrated the ability for the U.S. Navy and submarine force to conduct sustained operations, unimpeded, in all the world’s oceans. The ship visited several ports and countries including Japan, South Korea, Thailand, Guam and Singapore. She also conducted the first visit to Saipan. U.S. port visits have included Ketchikan, Alaska; San Diego, Calif.; and Lahaina, Maui. Moore also oversaw a multi-month maintenance period in dry dock at the Pearl Harbor Naval Shipyard. During this complex process, major upgrades to the ship’s combat systems and the ship’s nuclear propulsion plant were flawlessly completed.

May 27, 2003 Two successful test launches of U.S. Navy Tomahawk cruise missiles were conducted in late May from USS Columbus, off the coast of Southern California.

October 28, SSN 762 departed Naval Station Pearl Harbor for a scheduled underway period. What makes this cruise different, is that the submarine has changed from a technological standpoint.

April 28, 2004 USS Columbus returned to homeport after a six-month deployment in the western Pacific.

August 23, 2005 The Pearl Harbor-based attack submarine is currently undergoing a planned maintenance period at Puget Sound Naval Shipyard.

December 22, 2006 SSN 762 returned to Pearl Harbor after completing a two-year overhaul at Submarine Base Bangor, Wash.

March 11, 2008 USS Columbus, commanded by Cmdr. James Doody, departed homeport for a scheduled western Pacific deployment.

September 11, The Columbus returned to Naval Station Pearl Harbor after a six-month underway period. She made port visits to Guam, Okinawa and Sasebo, Japan.

November 23, 2009 USS Columbus departed Pearl Harbor for a scheduled deployment to the western Pacific.

May 28, 2010 SSN 762 returned to Joint Base Pearl Harbor-Hickam after a six-month underway period.

September 2, 2011 Cmdr. David A. Youtt relieved Cmdr. David Minyard as CO of the Columbus during a change-of-command ceremony at the submarine piers in Pearl Harbor. Minyard was the commanding officer since May 8, 2009.