Apollo 6
The Command and Service Module, a Block I model, as flown on three other unmanned tests, arrived September 29 and was added on December 10. It was made from two existing spacecraft, the CM-020 and SM-014. CM-020 had been damaged in an explosion. CM-014 had been taken apart as part of the investigation into the Apollo 1 fire. After two months of testing and repairs, the rocket was moved to the pad on February 6, 1968.