STS-5
"Columbia" landed on Runway 22 at Edwards Air Force Base on 16 November 1982, at 6:33 am PST, having traveled 2 million miles in 81 orbits during a mission that lasted 5 days, 2 hours, 14 minutes and 26 seconds. "Columbia" was returned to KSC on 22 November 1982. STS-5 was the first shuttle flight in which the crew did not wear pressure suits for the launch, reentry, and landing portions of the flight, similar to the Soviet Voskhod and Soyuz missions prior to the ill-fated Soyuz 11 mission in 1971.
The shuttle was formally declared "operational" after STS-4. However, the Columbia Accident Investigation Board (CAIB), in its report on the loss with all crew aboard of "Columbia" during STS-107 in 2003, asserted that the orbiter should never have been considered operational and that, while not intrinsically unsafe, it was in fact an experimental vehicle. The CAIB's rationale was that civilian and military aircraft that are considered operational must have been tested and proven over thousands of safe flights in their final operational configurations, whereas the shuttle had conducted under 200 flights, with continuous modification. NASA operated the Space Shuttle as an experimental vehicle for the remainder of the program.
MV Columbia
Early on 15 August 2007, only two months before a scheduled overhaul, position number two connecting rod in the Columbia's starboard engine experienced a bearing failure. To prevent catastrophic damage to the surrounding components the engine was secured. The 268 passengers were rerouted, and it was sent to Ketchikan, where it was originally planned to be repaired within the week. Soon it became apparent that it would require further work, and in a controversial decision the Marine Highway System chose to cancel all further summer voyages on the ship pending repairs. Nearly all the other ships in the fleet were rerouted to make up for the loss of what many consider to be the flagship of the fleet, and many passengers were urged to seek alternative travel means to help ease the pressure on the system. Transferred to Cascade General Shipyard at Swan Island in the Portland, Oregon area; both main engines were disassembled and overhauled. As of May 19, 2008 the MV Columbia left Cascade General and sailed to Bellingham, WA to begin active service.