 In mid-December 1961, Atlas 121D and Agena 6003 arrived at Cape Canaveral and were erected on LC-12.On January 18, 1962, Ranger 3 was stacked atop the booster, but the following day attempted fueling of the Atlas went awry when a tear was found in the intermediate bulkhead separating the LOX and RP-1 tanks.This would mean that the launch vehicle would have to be taken down from the pad for repairs, delaying the launch an entire month.