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On March 17, 1967, the first stage of the second Saturn V to be launched (AS-502 or Apollo 6) is made ready at the Vertical Assembly Building, Merritt Island, Kennedy Space Center, Florida.
When AS-502 was launched, "POGO" oscillations (longitudinal vibrations) resulted in the early shutdown of two 2nd stage engines. The S-IVB 3rd stage engine also failed a planned restart. However, engineers thought they could fix th
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